2018-2019上海市民办华育中学八年级期中考试测试卷(无听力)

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上海市民办华育中学2018-2019学年八年级上学期期中英语试题(含答案解析)

上海市民办华育中学2018-2019学年八年级上学期期中英语试题(含答案解析)

上海市民办华育中学2018-2019学年八年级上学期期中英语试题学校:___________姓名:___________班级:___________考号:___________一、单项选择1.Be careful not to wake the baby.A./keə’fl/B./kiə’fl/C./’keəfl/ D./’kiəfl/ 2.Which of the following underlined parts is different in pronunciation from others? A.She was standing on one foot. B.I won’t leave until you come back.C.She was unable to contain her excitement. D.Who will pay the electricity bill?3.A little boy wrote ________ “u” and ________ “n” on the wall.A.a; an B.an; a C.an; an D.a; a4.I have lost my pen. I must buy ________ today.A.it B.this C.one D.that 5.You’ve got so many books. Could you please lend me ________ to read?A.anything B.any C.something D.some 6.They’ve taken everything with ________.A.them B.themselves C.they D.their 7.She had to borrow a new ________ in order to attend the party.A.cloth B.clothes C.clothing D.dress8.________ useful information board you have made!A.How B.What C.How a D.What a9.I am not sure how long Oliver ________.A.has joined the army B.has joined in the army C.has served the army D.has served in the army10.What is the chemical symbol ________ water?A.about B.of C.on D.for11.________ a father, she has a younger brother to support.A.Beside B.Besides C.Except D.Except for 12.I hate to admit it, ________ I think I was wrong.A.and B.but C.or D.so13.He’s an ________ engineer, he can deal with ________ problems.A.electricity, electrical B.electrical, electrical C.electrical, electric D.electrical, electricity14.History ________ repeat itself.A.needs not B.need not C.doesn’t need D.need not to 15.What did you ________ about water pollution at the meeting?A.talk B.say C.speak D.tell16.In the past few years, ________ great changes in Shanghai.A.there were B.there have had C.there had been D.there have been 17.Joyce suggested ________.A.them talk it over among themselves B.them talked it over among themselves C.they talk it over among themselves D.they talked it over among themselves 18.Where do you think ________ Tonny ________ the jacket?A.did, buy B.did, bought C.has, bought D./, bought 19.Which sentence is correct?A.I wonder where you have gone. B.I wonder where they visited.C.I wonder when you have finished the task. D.I wonder what is the matter with you. 20.—John and I will celebrate our fortieth wedding anniversary next month.—Oh, ________!A.cheer up B.well done C.go ahead D.congratulations二、用所给单词的正确形式填空21.They have both behaved ________ than before and I am very hurt. (bad)22.You can reduce these long ________ to simple charts or diagrams. (explain)23.In ________ cold weather, everything seems to be frozen. (freeze)24.Our government is trying to take ________ to prevent and control pollution. (measure) 25.My father exercises ________ because he doesn’t have e nough time. (regular) 26.They do not have the ________ to apologize for their actions. (encourage)27.A friend is a living treasure, and if you have one, you have one of the ________ gifts in life. (value)28.Such negative thoughts and feelings make some people feel like ________ up. (give) 29.I didn’t know a thing about the verbs, for I ________ my lesson. (not study)30.The miners ________ alive when the tunnel collapsed. (bury)31.Look! Jerry ________ and he belongs to a ski club. (ski)32.I hope you ________ the secret of how to be happy. (find)33.I don’t think Renee saw us. She ________ a watch for her father. (choose)34.Let us hold our hands and ________ the environment. (not pollute)三、改写句子35.Daisy was told not to eat sweets any more. (反意疑问句)Daisy was told not to eat sweets any more, ________ ________?36.The doctor took good care of the wounded. (改为被动句)The wounded ________ ________ good care of by the doctor.四、同义句转化37.I don’t know if I will go with you tomorrow. (同义句转换)I don’t know ________ ________ go with you tomorrow.38.Benny wanted to trick his sister. (同义句转换)Benny wanted to ________ ________ ________ ________ his sister.五、划线部分提问39.Life in our cities will be inconvenient without electricity.(划线提问)________ will life in our cities ________ ________ without electricity?六、将所给单词连成句子40.machine, makes, kinds, works, it, goods, the, of, that, all(连词成句)________________________________.七、短文选词填空Complete the following passage with the words or phrases in the box. Each word or phrase can only be used once.More Than a Ride to SchoolThe National Education Association claims, “The school bus is a mirror of the community.” They further add that, unfortunately, what appears on the exterior does not always reflect the reality of a chosen community. They are right—sometimes it reflects more! Just ask Liesl Denson. Riding the school bus has been more than a ride to school for Liesl.Bruce Hardy. school bus driver for Althouse BUS Company has been Liesl’s bus driver since kindergarten. Last year when Liesl’s family moved to Parkesburg, 41.her bus went by her new residence, she requested to ride the same bus.This year Liesl is a senior and will enjoy her last year riding the bus. She says, “It’s been a great ride 42.! My bus driver is so cool and has always been a good friend and a good liste ner. Sometimes when you’re a child, adults do not think that what you have to say is important. Mr. Hardy always listens to what you have to say and makes you feel important.” Her friends Ashley Batista and Amanda Wolfe agree 43.what Liesl said. Bruce Hardy has been making Octorara students feel special since 1975. This year he will celebrate 40 years working for Althouse Bus Company. Larry Althouse, president of the company, acknowledges Bruce Hardy’s outstanding record, “You do not come by employees lik e Bruce these days. He has never missed a day of work and has a perfect driving record. He was recognized in 2000 by the Pennsylvania School Bus Association for driving 350,000 accident-free miles. Hardy’s reputation is made 44.evident through the relationships he has made with the students that ride his bus.”Althouse further adds, “Althouse Bus Company was established 70 years ago and has been providing quality transportation 45.. My grandfather started the business with one bus. Althouse Bus Company is delighted to have the opportunity to bring distinctive and safe service to our local school and community and looks forward to continuing to provide quality service for many more years to come.”Three generations of business is not all the company has enjoyed. Thanks 46.drivers like Bruce Hardy, they have been building relationships through generations, Liesl’s mother Carol also enjoys fond memories of riding Bruce Hardy’s bus to the Octorara School District.八、阅读单选The Exploding Lakes of CameroonWhat comes to mind when you think of a lake? You probably imagine a pretty scene with blue water, birds, and fish. For the people in the northwestern Cameroon, however, the image is very different. For them, lakes may mean terrible disasters. In 1984, poisonous gases exploded out of Lake Monoun and came down into the nearby villages, killing thirty-seven people. Two years later, Lake Nyos erupted a cloud of gases rolled down the hills and into the valleys and killed 1,700 people.Lake Nyos and Lake Monoun are crater (火山口) lakes. They were formed when water collected in the craters of old volcanoes. The volcanoes under Lake Nyos and Lake Monoun are not active anymore. However, poisonous gases from the center of the earth continue to flow up through cracks in the bottom of the lake. This is normal in a crater lake. In most crater lakes, these gases are released often because the water “turns over” regularly. That is, the water from the bottom of the lake rises and mixes with the water at the top, allowing the gases to escape slowly.However, in Lakes Nyos and Monoun, there is no regular turning over. No one knows the reason for this fact, but as a result, these lakes have more gases tapped at the bottom than other crater lakes. In fact, scientists who have studied Lakes Nyos and Monoun have found 16,000 times more gases. When a strong wind, cool weather, a storm, or a landslide (滑坡) causes the water to turn over suddenly, the gases escape in a violent explosion.In the past, no one knew when the gases might explode, so there was no way for the villagers to escape disaster. Now scientists from the United States, France, and Cameroon have found a way to reduce the gas pressure at the bottom of Lake Nyos. They stood a672-foot plastic pipe in the middle of the lake, with one end of the pipe near the bottom and the other end in the air. Near the top of the pipe, the team put several holes that could be opened or closed by a computer. Now, when the gas pressure gets too high, the holes are opened and some of the gas-filled water shoots up through the pipe into the air like a fountain. With less pressure, a disastrous explosion is much less likely. However, the scientists are not sure that one pipe will be enough to prevent explosions. They hope to put in others soon and they plan to install a similar pipe and a computer system at Lake Monoun as well.To protect people nearby until all of the pipes are in place, the scientists have installed early warning systems at both lakes. If the gas pressure rises to a dangerous level, computers will set off loud sirens (警报) and bright lights to warn the people in the villages. That way, they will have time to escape from the dangerous gases.47.What will happen when Lake Nyos and Lake Monoun explode?A.Water will flow down the hills. B.Poisonous gases will be released suddenly.C.A strong wind will rise from the lakes. D.The volcanoes will come to life. 48.Which of the following statements about Lake Nyos and Lake Monoun is true? A.They were formed in 1984. B.They are at the top of two activevolcanoes.C.They are not like most other crater lakes. D.Water in them turns over regularly. 49.Lake Nyos and Lake Monoun explode because ________.A.the gases rise to the top and mix with airB.people from the villages turn over the waterC.scientists have put in a computer systemD.they have more gases trapped at the bottom than other crater lakes50.A team of scientists has ________.A.erected a pressure-releasing pipe in the lake B.identified the gases at the bottom of the lakeC.built a beautiful fountain near the lakes D.removed all dangerous gases from the lakes51.What do we learn from the last paragraph?A.Scientists are planning to install pipes in all crater lakes B.Scientists still do not know how to prevent gas explosionsC.Explosion disasters could be avoided in the future D.Warming systems have been set up in the villages nearby.九、完型填空It was just getting dark; there was a touch of fog and I was on a lonely stretch of road. But I was going along cheerfully, thinking about the dinner I would eat when I got to Salisbury.I was going along quietly at about thirty-five miles an hour when suddenly I heard a scream, a woman’s scream- “Help!” I looked round, but the only 52 of life was a large, black, rather suspicious-looking(看起来可疑的) car just turning a bend in the road about a hundred yards away. That was 53 the cry had come from: I 54 speed and went after it. I thought the driver saw what I was doing, for he did the same and began to draw away from me. As I drew nea r, the girl’s voice came again, a lovely voice but trembling(发抖)with fear.“Let me go, you fool; you’re hurting me. Oh! Oh!”I felt my blood 55 . The fog was coming down thicker now, the countryside was lonelier. The man in the car had no 56 noticed this. Again, came a cry.“Drop the knife, fool. Oh!” Then a cry and a groan.If I was to save her, it was now or 57 . Perhaps even now I was too late. But if I couldn’t save the girl, I would 58 try to bring the murderer to the police station. The car was only a couple of yards away now. I drove the bike right across its path, and its brakes screamed as the driver tried to pull it over and crashed into the ditch (沟渠) on the side of the road. The door of the car was pushed open angrily and a dark, evil-looking fellow stepped out, mad with anger.“Fool!” he shouted 59 he came towards me with his fist raised to hit me. But I was quicker than he. I put all I knew into a blow that would have knocked out Joe Louis. It caught him right on the ground without a sound. I rushed to the car, pulled the door and peered inside. There was no girl there. Suddenly from the back of the car came a voice.“You have been listening to a radio play. Murder in Holl ywood, with Mae Garbo and Clark Taylor. The news will follow immediately.”52.A.person B.sign C.figure D.form 53.A.how B.when C.what D.where 54.A.put aside B.put up C.put down D.put on 55.A.boil B.run C.come D.freeze 56.A.sign B.effort C.doubt D.troubles 57.A.late B.then C.ever D.never 58.A.at most B.at least C.at last D.at first 59.A.before B.after C.as D.while十、短文首字母填空Read the passage and fill in the blanks with proper words.A Chimps(黑猩猩) will cooperate in certain ways, like gathering in war parties to protect their territory. But beyond the minimum requirements as social beings, they have little instinct (本能) to help one a60.. Chimps in the wild seek food for themselves. Even chimp mothers regularly decline to share food with their children, who are able from a young age to gather their own food.In the laboratory, chimps don’t naturally share food either. If a chimp is put in a cage where he can pull in one plate of food for himself or, with no great effort, a plate that also provides food for a neighbor to the next cage, he will pull at random—he just doesn’t carewhether his neighbor gets fed or not. Chimps are truly selfish.Human children, on the other hand are extremely cooperative. From the earliest ages, they desire to help others, to share information and to participate in a61.common goals. The psychologist Michael Tomasello has studied this cooperativeness in a series of experiments with very young children. He finds that if babies aged 18 months see a worried adult with hands f62.trying to open a door, almost all will immediately try to help.There are several reasons to believe that the urges to help, inform and share are not taught, but n63.possessed in young children. One is that these instincts appear at a very young age before most parents have started to train children to behave socially. Another is that the helping behaviors are not improved if the children are rewarded. A third reason is that social intelligence d64.in children before their general cognitive(认知的)skills, at least when compared with chimps. In tests conducted by Tomasello, the children did no better than the chimps on the physical world tests, but were considerably better at understanding the social world.The core of what children’s minds have and chimps’ don’t is wha t Tomasello calls shared intentionality. Part of this ability is that they can infer what others know or are thinking. But b65.that, even very young children want to be part of a shared purpose. They actively seek to be part of a “we”, a group that intend s to work toward a shared goal.十一、阅读回答问题Read the following passage and answer the questions.Being an astronaut sounds cool, doesn’t it? In space, they can do some pretty amazing things, like floating in zero gravity.However, there are also plenty of things that astronauts can’t do because of their weightless environment, and that’s very sad. What’s worse, they can’t even let their sadness show—because it’s impossible to cry in zero gravity.Of course, astronauts can still have tears. But crying is much more difficult in space. Without gravity, tears don’t flow downward out of the eyes like they do on the earth. This means that when you cry in space, your tears have nowhere to go—they just stick to your eyes.In May 2011, astronaut Andrew Feustel experienced this during one of his spacewalks. “Tears,” he said, “don’t fall off your eyes. They just stay there.” Besides making your visionunclear, this can also cause physical pain. Back on the earth, tears are supposed to bring comfort to the eyes. But that’s not the same in space. The space environment dries out astronauts’ eyes, and when tears suddenly wet the eyes, it can cause pain rather than comfort. “My right eye is painful like crazy” Feustel told his teammate during the walk.Since gravity doesn’t w ork in space astronauts need some extra help to get rid of the tears.Feustel chose to rub his eyes against his helmet (头盔) to wipe the tears away. Another choice is to just wait—“When the tears get big enough, they simply break free of the eye and float around”, astronaut Ron Parise said.There are lots of small things—things like crying that we are so used to on the earth. We usually take them for granted, until they become a problem in a completely different environment, like space. There, astronauts ca n’t talk to each other directly. They can’t eat or drink in normal ways; They can’t even burp (打嗝) because there is no gravity to hold the food down in their stomachs. If they do burp, they just end up throwing up (呕吐) everything in their stomachs, according to the UK National Space Center.Thus perhaps it’s only space explorers who can honestly say: “Gravity, you’re the best.”66.Crying isn’t more difficult in space than on the earth, is it?_______________________________67.Who experienced that the tears in space caused pain rather than comfort?_______________________________68.How do astronauts get rid of the tears in space?_______________________________69.Why can’t astronauts burp in space?_______________________________70.In the last paragraph, the writer says: perhaps it’s only space explorers who can honestly say: “Gravity, you’re the best.” Do you agree with the writer? Why or why not?_______________________________十二、材料作文71.Write a passage of at least 60 words on the topic. “The fun of learning________ (English/painting/to play the piano/to play basketball…”Necessary points:1. What’s your experience of learning ________?2. Why do you think learning ________ is fun?(注意:短文中不得出现考生的姓名、校名及其他相关信息,否则不予评分。

【初二下数学】2019华育八下期中卷

【初二下数学】2019华育八下期中卷

2018学年第二学期期中考试 初二数学 试卷 2019.4.17(考试时间:90分钟 满分:100分)一、填空题(每空2分,共28分) 1.已知416x =,则x =_________2.下列关于x 的方程:(11=;(2)417x =-;(3)2(1)21a xx x +-=-;(4)8(0)x a a=≠;其中是整式方程的有__________ 3.方程23212x x x x -=-+-的根为__________ 4.如图所示,在梯形ABCD 中,AD BC ∥,对角线AC BD ⊥,且10AC =,5BD =,则这个梯形中位线的长等于__________5.关于x 、y 的方程组22211010x y x y x -=⎧⎨--+=⎩的解为___________ 6.某超市用2500元购进一批水果,销售过程中损耗水果10千克.已知超市每千克水果的售价比进价多1元,全部售完共赚440元,则这批水果每千克的进价为__________元 7.关于x 、y 的方程组2120x y x y m +=⎧⎨+-=⎩有两组相等的实数根,则m =__________8.定义一种新的运算*,使*()a b ab a b =+,则方程(*2)*2160x =的实数根为_________ 9.关于x1k =-无实根,则k 的取值范围为__________10.已知ABC ∆的周长为2,联结ABC ∆三边中点构成第二个三角形,再联结第二个三角形的三边中点构成第三个三角形,以此类推,第2020个三角形的周长是__________ 11.已知4322914920x x x x -+-+=,则1x x+=________ 12.在ABC ∆中,60A ∠=︒,AB =BC =AB 、CB 的中点D 、E ,则线段DE =__________ 13.关于x 的方程2(1)22563x k x x x x x --=--+-有增根,则k =__________ 14.已知实数0a >,0b >,满足2019a +=,22019b b +=,则a b +的值是_________第4题图二、选择题(每题3分,共12分)15.如图所示,已知四边形ABCD ,R ,P 分别是DC ,BC 上的点,E ,F 分别是AP ,RP 的中点,当点P 在BC 上从点B 向点C 移动而点R 不动时,那么下列结论成立的是( )A 、线段EF 的长逐渐增大B 、线段EF 的长逐渐减少C 、线段EF 的长不变D 、线段EF 的长不能确定16.为响应“传统文化进校园”的号召,我校举行了书法比赛,为鼓励获奖同学,学校购买了一些钢笔和毛笔,钢笔单价是毛笔单价的1.5倍,购买钢笔用了1200元,购买毛笔用率1500元,购买的钢笔支数比毛笔少20支,钢笔,毛笔的单价分别是多少元?如果设毛笔的单价为x 元/支,那么下面所列方程正确的是( )A 、12001500201.5x x -= B 、150********.5x x -= C 、1500120020 1.5x x =- D 、12001500201.5x x-= 17.下列无理方程有解的有( )(110=;(2(3;(4x =-; (51x -=;A 、1个B 、2个C 、3个D 、4个18.下列说法正确的是( )(1)二项方程的解的个数为1或2;(2)两个不同的二元二次方程一定可以组成一个二元二次方程组; (32=是分式方程; (4)2224x y x y +=⎧⎨+=⎩的实数解有两组; (5)关于x 的方程420ax bx c ++=,当0ab <,0ac >时,方程一定有4个实数根.A 、0个B 、1个C 、2个D 、3个三、解方程(组)(每题5分,共25分) 19. 2222125+044348314x x x x x x --=---+-第15题图20. 22314612x y x y x y x y⎧+=⎪++⎪⎨⎪-=⎪++⎩21. 1x +22. 222221833322760x xy y x xy y ⎧-+=⎪⎨++=⎪⎩23.解关于x 的方程:22()2n n a x b b a b x -=--(n 为正整数,0b ≠)四、列方程(组)解应用题(8分)24.华育中学为了迎接20周年校庆,决定对学校进行整修,于是与沪上某知名建筑公司商谈该工程项目.(1)因为要在教学楼的教室内安装空调,所以需要对现有的电路进行重新铺设.预计需要重新铺设6240米的电线,由于采用了新的铺设方法,现计划每天铺设的长度比原计划增加156米,因而可以比原计划提前两天完成,求现计划每天铺设多少米的电线.(2)据建筑公司预测,整个工程需要35天完成;如果每个工人每天多工作2小时,则工期可以缩短5天;如果增加6名工人,每人每天再多工作1小时,则工期可以再缩短十天.请计算原来施工的工人有多少名?每人每天工作多少小时?五、解答题(25题6分,26题6分,27题6分,共18分)25.如图,在梯形ABCD 中,CD AB ∥,点F 在AB 上,DF AF =,且DE AD ⊥交BC 于点E ,联结EF ,EF DE ⊥.(1)如果13DF =,12DE =,求AD 的长 (2)若E 为CB 的中点,求证:AF DC BF =+B26.已知关于x 、y 的方程组2242y x k y k x k +=⎧⎨=+-+⎩有两组不同的实数解11x x y y =⎧⎨=⎩,22x x y y =⎧⎨=⎩,且120x x +≠,(1)求k 的取值范围;(2)如果1x 、2x 为等腰三角形的两边,试求k 的取值范围.27.关于x(21)1kx k x =++有且只有一个实数根,求k 的取值范围.六、综合题(9分)28.如图1,函数(0,0)ky k x x=>>的图像于矩形OABC 的边AB 交于点E ,点A 在x 轴的正半轴,点C 在y 轴的正半轴,点B 的坐标是1(4,10)4m +,其中0m >,点D 在线段CO 上,4CD =,设点P 在该函数图像上,且它的横坐标为m .(1)当16k =时,则BE =_______(用含m 的代数式表示);(2)如图2,在(1)的条件下,若BDE ∆恰好是以BD 为腰的等腰三角形,求m 的值; (3)取PD 中点为G ,是否存在点P ,使得以PD 为斜边的直角三角形的直角顶点F 落在矩形OABC 的一边上(除边OC 外),且同时满足GF 垂直于这条边,30FDP ∠=度.若存在,直接写出k 的值;若不存在,请说明理由.x图1备用图x图2。

上海市华育中学八年级上学期期中考试数学试题及答案

上海市华育中学八年级上学期期中考试数学试题及答案

上海市华育中学初二(上)数学期中试卷一、填空题(每空2分,共32分)1、当 _____________________时,3322--x x 有意义 2、化简:=--aa 11____________________ 3、已知103-=a ,则a 的倒数为_______________4、在实数范围内因式分解:=-+10324a a _____________________________5、++x x 3432__________3=(+x ______)2 6、当=x _________时,多项式x x 432-的值比多项式1622-+x x 的值小157、不解方程,判别关于x 的方程()()0321322=-++-m x m x 的根的情况是________________________ 8、已知方程0122=--x k x 有两个不相等的实数根,则k 的取值范围是_____________9、方程03532=-+m x x 的两根之比为1:3,则=m ___________10、一种药品原价60元,经过两次降价后,每盒的利润减少4.11元,那么平均每次降价的百分比是_____11、如图,ABC ∆绕顶点A 逆时针旋转︒54后,得到ADE ∆,这时点D 恰好落在BC 上,则=∠EDC ______ 12、如图,在ABC ∆中,AC AB =,AD 是ABC ∠的角平分线,AB DE ⊥,AC DF ⊥,垂足分别是E 、F ,则下列四个结论:①AD 上任意一点到点C 、点B 的距离相等;②AD 上任意一点到AB 、AC 的距离相等;③CD BD =,BC AD ⊥; ④CAD BDE ∠=∠。

其中,正确的是_____________﹙填序号﹚13、如图,ABC Rt ∆中,︒=∠90ABC ,D 是AC 的中点,BE 是CD 的垂直平分线,那么图中度数为︒30的角有__________个14、如图,在ABC Rt ∆中,︒=∠90C ,DE 是AB 的垂直平分线,且3:1:=∠∠BAC BAD ,则B ∠的度数为______________15、如图,已知O 是AB 、AC 的中垂线交点,E 是ABC ∠、ACB ∠角平分线的交点,︒=∠+∠180E O ,则=∠A _____________第11题图 第12题图 第13题图 第14 题图 第15题图BE O E D B E DF E D B D E B B C C C C C A A A A A二、选择题﹙每题3分,共12分﹚1、对于任何实数a ,下面的数中必定是正数的是( )A 、4+aB 、a a +-2C 、162+-a aD 、642++a a2、以下命题中假命题的个数是( )①一个角的两边分别与另一个角的两边平行,则这两个角相等;②有两边和第三边上的高对应相等的两个三角形全等;③有一边相等的两个等腰三角形全等; ④若根式22+x 和13-x 是同类二次根式,则3=xA 、1B 、2C 、3D 、43、已知三角形两边长分别是1和2,第三边的长为03522=+-x x 的根,则这个三角形的周长是( ) A 、4 B 、214 C 、213 D 、不存在 4、若等腰三角形一腰上的高等于腰长的一半,则这个等腰三角形的底角为( )A 、︒75或︒15B 、︒30或︒60C 、︒75D 、︒30三、简答题:1、()083623233<⎪⎪⎭⎫ ⎝⎛÷⎪⎭⎫ ⎝⎛-x x y y x xy y (5分) 2、已知2=x ,求⎪⎪⎭⎫ ⎝⎛--+÷⎪⎪⎭⎫ ⎝⎛-++x x x x x x x x 1111的值。

【三套打包】上海华育中学八年级下学期期中数学试题

【三套打包】上海华育中学八年级下学期期中数学试题

最新八年级(下)期中考试数学试题(含答案)一、选择题(本大题共6个小题,每小题3分,共18分,每小题只有一个正确选项)1.(3分)使有意义的x的取值范围是()A.x≤3B.x<3C.x≥3D.x>32.(3分)化简的结果正确的是()A.﹣2B.2C.±2D.43.(3分)下列各组数中,不能构成直角三角形的一组是()A.3,4,5B.1,2,C.5,12,13D.6,8,12 4.(3分)如图,▱ABCD的周长为36,对角线AC、BD相交于点O,点E是CD的中点,BD=12,则△DOE的周长为()A.15B.18C.21D.245.(3分)如图,菱形ABCD的对角线AC、BD的长分别为6和8,则这个菱形的周长是()A.20B.24C.40D.486.(3分)如图,在矩形AOBC中,O为坐标原点,OA、OB分别在x轴、y轴上,点B 的坐标为(0,3),∠ABO=30°,将△ABC沿AB所在直线对折后,点C落在点D 处,则点D的坐标为()A.(,)B.(2,)C.(,)D.(,3﹣)二、填空题(本大题共6小题,每小题3分,共18分.)7.(3分)与最简二次根式5是同类二次根式,则a=.8.(3分)计算(2+3)(2﹣3)的结果等于.9.(3分)一个三角形的三边分别是、1、,这个三角形的面积是.10.(3分)在Rt△ABC中,∠C=90°,∠A=30°,AB=6,则AC=.11.(3分)当2≤3x+5≤8时,化简+=.12.(3分)已知:矩形ABCD,AB=5,BC=4,P是边CD上一点,当△PAB是等腰三角形时,求PC的长可以是.三、(本大题共5小题,每小题6分,共30分)13.(6分)计算:(1)+|﹣2|﹣()﹣1(2)4+﹣+414.(6分)长方形的长是3+2,宽是3﹣2,求长方形的周长与面积.15.(6分)如图,一架梯子长2.5米,斜靠在一面墙上,梯子底端离墙0.7米,如果梯子的顶端下滑0.4米,那么梯子的底部在水平方向上滑动了多少米?16.(6分)已知:如图,四边形ABCD是菱形,F是AB上一点,DF交AC于E.求证:∠AFD=∠CBE.17.(6分)如图,在▱ABCD中,AB=10,AD=6,AC⊥BC.求BD的长度.四、(本大题共3小题,每小题8分,共24分).18.(8分)《九章算术》是我国古代最重要的数学著作之一,在“勾股”章中记载了一道“折竹抵地”问题:“今有竹高一丈,末折抵地,去本三尺,问折者高几何?”可翻译为:有一根竹子高一丈,今在A处折断,竹梢落在地面的B处,B与竹根部C相距3尺,求折断点A与地面的高度AC.(注:1丈=10尺)19.(8分)如图,四边形ABCD是正方形,△EBC是等边三角形.(1)求证:△ABE≌△DCE;(2)求∠AED的度数.20.(8分)如图,已知△ABC是等边三角形,点D、F分别在线段BC、AB上,DC=BF,以BF为边在△ABC外作等边三角形BEF.(1)求证:四边形EFCD是平行四边形.(2)△ABC的边长是6,当点D是BC三等分点时,直接写出平行四边形CDEF的面积.五、(本大题共2小题,每小题9分,共18分)21.(9分)对于形如的式子可以用如下的方法化简:===+.请仿照这样的方法,解决下列问题.(1)化简:(2)化简求值:已知x=,求(+)•22.(9分)如图,在菱形ABCD中,对角线AC与BD交于点O.过点C作BD的平行线,过点D作AC的平行线,两直线相交于点E.(1)求证:四边形OCED是矩形;(2)若CE=1,DE=2,则菱形ABCD的面积是.六、(本大题共12分)23.(12分)在矩形ABCD中,AB=6,BC=8,点E为BC延长线上一点,且BD=BE,连接DE,Q为DE的中点,有一动点P从B点出发,沿BC以每秒1个单位的速度向E 点运动,运动时间为t秒.=(用含t的式子表示);(1)如图1,连接DP、PQ,则S△DPQ(2)如图2,M、N分别为AB、AD的中点,当t为何值时,四边形MNQP为平行四边形?请说明理由;(3)如图3,连接CQ,AQ,试判断AQ、CQ的位置关系并加以证明.2018-2019学年江西省赣州市宁都县八年级(下)期中数学试卷参考答案与试题解析一、选择题(本大题共6个小题,每小题3分,共18分,每小题只有一个正确选项)1.(3分)使有意义的x的取值范围是()A.x≤3B.x<3C.x≥3D.x>3【分析】先根据二次根式有意义的条件列出关于x的不等式,求出x的取值范围即可.【解答】解:∵式子有意义,∴x﹣3≥0,解得x≥3.故选:C.【点评】本题考查的是二次根式有意义的条件,熟知被开方数具有非负性是解答此题的关键.2.(3分)化简的结果正确的是()A.﹣2B.2C.±2D.4【分析】根据=|a|计算即可.【解答】解:原式=|﹣2|=2.故选:B.【点评】本题考查了二次根式的性质与化简:=|a|.3.(3分)下列各组数中,不能构成直角三角形的一组是()A.3,4,5B.1,2,C.5,12,13D.6,8,12【分析】由勾股定理的逆定理,只要验证两小边的平方和等于最长边的平方即可.【解答】解:A、32+42=52,能构成直角三角形;B、12+()2=22,能构成直角三角形;C、52+122=132,能构成直角三角形;D、62+82≠122,不能构成直角三角形.故选:D.【点评】本题考查勾股定理的逆定理的应用.判断三角形是否为直角三角形,已知三角形三边的长,只要利用勾股定理的逆定理加以判断即可.4.(3分)如图,▱ABCD的周长为36,对角线AC、BD相交于点O,点E是CD的中点,BD=12,则△DOE的周长为()A.15B.18C.21D.24【分析】利用平行四边形的性质,三角形中位线定理即可解决问题;【解答】解:∵平行四边形ABCD的周长为36,∴BC+CD=18,∵OD=OB,DE=EC,∴OE+DE=(BC+CD)=9,∵BD=12,∴OD=BD=6,∴△DOE的周长为9+6=15,故选:A.【点评】本题考查平行四边形的性质、三角形的中位线定理等知识,解题的关键是熟练掌握三角形中位线定理,属于中考常考题型.5.(3分)如图,菱形ABCD的对角线AC、BD的长分别为6和8,则这个菱形的周长是()A.20B.24C.40D.48【分析】由菱形对角线的性质,相互垂直平分即可得出菱形的边长,菱形四边相等即可得出周长.【解答】解:由菱形对角线性质知,AO=AC=3,BO=BD=4,且AO⊥BO,则AB==5,故这个菱形的周长L=4AB=20.故选:A.【点评】本题考查了菱形面积的计算,考查了勾股定理在直角三角形中的运用,考查了菱形各边长相等的性质,本题中根据勾股定理计算AB的长是解题的关键,难度一般.6.(3分)如图,在矩形AOBC中,O为坐标原点,OA、OB分别在x轴、y轴上,点B 的坐标为(0,3),∠ABO=30°,将△ABC沿AB所在直线对折后,点C落在点D 处,则点D的坐标为()A.(,)B.(2,)C.(,)D.(,3﹣)【分析】根据翻折变换的性质结合锐角三角函数关系得出对应线段长,进而得出D点坐标.【解答】解:∵四边形AOBC是矩形,∠ABO=30°,点B的坐标为(0,3),∴AC=OB=3,∠CAB=30°,∴BC=AC•tan30°=3×=3,∵将△ABC沿AB所在直线对折后,点C落在点D处,∴∠BAD=30°,AD=3,过点D作DM⊥x轴于点M,∵∠CAB=∠BAD=30°,∴∠DAM=30°,∴DM=AD=,∴AM=3×cos30°=,∴MO=﹣3=,∴点D的坐标为(,).故选:A.【点评】此题主要考查了翻折变换以及矩形的性质和锐角三角函数关系,正确得出∠DAM =30°是解题关键.二、填空题(本大题共6小题,每小题3分,共18分.)7.(3分)与最简二次根式5是同类二次根式,则a=2.【分析】先将化成最简二次根式,然后根据同类二次根式得到被开方数相同可得出关于a的方程,解出即可.【解答】解:∵与最简二次根式是同类二次根式,且,∴a+1=3,解得:a=2.故答案为2.【点评】本题考查了同类二次根式的定义:化成最简二次根式后,被开方数相同,这样的二次根式叫做同类二次根式.8.(3分)计算(2+3)(2﹣3)的结果等于﹣3.【分析】利用平方差公式计算.【解答】解:原式=24﹣27=﹣3.故答案为﹣3.【点评】本题考查了二次根式的混合运算:先把二次根式化为最简二次根式,然后合并同类二次根式即可.在二次根式的混合运算中,如能结合题目特点,灵活运用二次根式的性质,选择恰当的解题途径,往往能事半功倍.9.(3分)一个三角形的三边分别是、1、,这个三角形的面积是.【分析】首先根据勾股定理逆定理可判定此三角形是直角三角形,然后再计算面积即可.【解答】解:∵()2+12=3=()2,∴这个三角形是直角三角形,∴面积为:×1×=,故答案为:.【点评】此题主要考查了二次根式的应用以及勾股定理逆定理,关键是正确判断出三角形的形状.10.(3分)在Rt△ABC中,∠C=90°,∠A=30°,AB=6,则AC=3.【分析】利用“在直角三角形中,30°角所对的直角边等于斜边的一半”可求出BC的长度,再利用勾股定理即可求出AC的长度.【解答】解:依照题意画出图形,如图所示.在Rt△ABC中,∠C=90°,∠A=30°,AB=6,∴BC=AB=3,∴AC==3.故答案为:3.【点评】本题考查了含30度角的直角三角形以及勾股定理,牢记“在直角三角形中,30°角所对的直角边等于斜边的一半”是解题的关键.11.(3分)当2≤3x+5≤8时,化简+=6.【分析】直接求出x的取值范围,进而化简二次根式得出答案.【解答】解:∵2≤3x+5≤8,∴﹣1≤x≤1,∴+=3﹣x+x+3=6.故答案为:6.【点评】此题主要考查了二次根式的性质与化简,正确掌握二次根式的性质是解题关键.12.(3分)已知:矩形ABCD,AB=5,BC=4,P是边CD上一点,当△PAB是等腰三角形时,求PC的长可以是 2.5或3或2.【分析】三种情况:①PA=PB,求出P在AB的垂直平分线上,即可求出DP,进而得出CP;②PA=AB=5,根据勾股定理求出DP,进而得出CP;③PB=BA=5,同法求出CP.【解答】解:有三种情况:①PA=PB,∵P在AB的垂直平分线上,∴DP=PC=×5=2.5;②PA=AB=5,∵矩形ABCD,∴∠D=90°;由勾股定理得:DP=,∴CP=5﹣3=2,③PB=BA=5,同法求出CP=3,故答案为:2.5或3或2.【点评】本题主要考查对矩形的性质,勾股定理,线段的垂直平分线性质,等腰三角形的性质等知识点的理解和掌握,能求出符合条件的所有情况是解此题的关键.三、(本大题共5小题,每小题6分,共30分)13.(6分)计算:(1)+|﹣2|﹣()﹣1(2)4+﹣+4【分析】(1)根据分母有理化、绝对值的意义和负整数指数幂的意义计算;(2)先把二次根式化为最简二次根式,然后合并即可.【解答】解:(1)原式=+2﹣﹣2=0;(2)原式=4+3﹣2+4=7+2.【点评】本题考查了二次根式的混合运算:先把二次根式化为最简二次根式,然后合并同类二次根式即可.在二次根式的混合运算中,如能结合题目特点,灵活运用二次根式的性质,选择恰当的解题途径,往往能事半功倍.14.(6分)长方形的长是3+2,宽是3﹣2,求长方形的周长与面积.【分析】根据长方形的周长公式:2×(长+宽),面积公式:长×宽进行计算即可.【解答】解:周长:2[(3+2)+(3﹣2)],=2(3+2+3﹣2),=2×6,=12;面积:(3+2)×(3﹣2)=45﹣12=36.【点评】此题主要考查了二次根式的应用,关键是掌握长方形的周长和面积计算公式,掌握二次根式的加减和乘法计算.15.(6分)如图,一架梯子长2.5米,斜靠在一面墙上,梯子底端离墙0.7米,如果梯子的顶端下滑0.4米,那么梯子的底部在水平方向上滑动了多少米?【分析】根据梯子长度不会变这个等量关系,我们可以根据BC求AC,根据AD、AC求CD,根据CD计算CE,根据CE,BC计算BE,即可解题.【解答】解:由题意知AB=DE=2.5米,BC=0.7米,AD=0.4米,∵在直角△ABC中,AC为直角边,∴AC==2.4米,已知AD=0.4米,则CD=2.4﹣0.4=2(米),∵在直角△CDE中,CE为直角边∴CE==1.5(米),BE=1.5米﹣0.7米=0.8米.答:梯子的底部在水平方向上滑动了0.8米.【点评】本题考查了勾股定理在实际生活中的运用,考查了直角三角形中勾股定理的运用,本题中正确的使用勾股定理求CE的长度是解题的关键.16.(6分)已知:如图,四边形ABCD是菱形,F是AB上一点,DF交AC于E.求证:∠AFD=∠CBE.【分析】根据菱形的性质得出∠BCE=∠DCE,BC=CD,AB∥CD,推出∠AFD=∠CDE,证△BCE≌△DCE,推出∠CBE=∠CDE即可.【解答】证明:∵四边形ABCD是菱形,∴∠BCE=∠DCE,BC=CD,AB∥CD,∴∠AFD=∠CDE,在△BCE和△DCE中∴△BCE≌△DCE,∴∠CBE=∠CDE,∵∠AFD=∠CDE,∴∠AFD=∠CBE.【点评】此题主要考查了菱形的判定与性质以及全等三角形的判定与性质等知识,得出△BCE≌△DCE是解题关键.17.(6分)如图,在▱ABCD中,AB=10,AD=6,AC⊥BC.求BD的长度.【分析】由BC⊥AC,AB=10,BC=AD=6,由勾股定理求得AC的长,得出OA长,然后由勾股定理求得OB的长即可.【解答】解:∵四边形ABCD是平行四边形,∴BC=AD=6,OB=OD,OA=OC,∵AC⊥BC,∴AC===8,∴OC=4,∴OB===2,∴BD=2OB=4.【点评】此题考查了平行四边形的性质以及勾股定理,熟练掌握平行四边形的性质,由勾股定理求出OB是解题关键.四、(本大题共3小题,每小题8分,共24分).18.(8分)《九章算术》是我国古代最重要的数学著作之一,在“勾股”章中记载了一道“折竹抵地”问题:“今有竹高一丈,末折抵地,去本三尺,问折者高几何?”可翻译为:有一根竹子高一丈,今在A处折断,竹梢落在地面的B处,B与竹根部C相距3尺,求折断点A与地面的高度AC.(注:1丈=10尺)【分析】设AC=x,可知AB=10﹣x,再根据勾股定理即可得出结论.【解答】解:设AC=x,∵AC+AB=10,∴AB=10﹣x.∵在Rt△ABC中,∠ACB=90°,∴AC2+BC2=AB2,即x2+32=(10﹣x)2.解得:x=4.55,即AC=4.55.【点评】本题考查的是勾股定理的应用,在应用勾股定理解决实际问题时勾股定理与方程的结合是解决实际问题常用的方法,关键是从题中抽象出勾股定理这一数学模型,画出准确的示意图.领会数形结合的思想的应用.19.(8分)如图,四边形ABCD是正方形,△EBC是等边三角形.(1)求证:△ABE≌△DCE;(2)求∠AED的度数.【分析】(1)根据正方形、等边三角形的性质,可以得到AB=BE=CE=CD,∠ABE =∠DCE=30°,由此即可证明;(2)只要证明∠EAD=∠ADE=15°,即可解决问题;【解答】(1)证明:∵四边形ABCD是正方形,△EBC是等边三角形,∴BA=BC=CD=BE=CE,∠ABC=∠BCD=90°,∠EBC=∠ECB=60°,∴∠ABE=∠ECD=30°,在△ABE和△DCE中,,∴△ABE≌△DCE(SAS).(2)∵BA=BE,∠ABE=30°,∴∠BAE=(180°﹣30°)=75°,∵∠BAD=90°,∴∠EAD=90°﹣75°=15°,同理可得∠ADE=15°,∴∠AED=180°﹣15°﹣15°=150°.【点评】本题考查正方形的性质、全等三角形的判定和性质、等边三角形的判定和性质等知识,解题的关键是正确寻找全等三角形解决问题.属于中考常考题型.20.(8分)如图,已知△ABC是等边三角形,点D、F分别在线段BC、AB上,DC=BF,以BF为边在△ABC外作等边三角形BEF.(1)求证:四边形EFCD是平行四边形.(2)△ABC的边长是6,当点D是BC三等分点时,直接写出平行四边形CDEF的面积.【分析】(1)由△ABC是等边三角形得到∠B=60°,而∠EFB=60°,由此可以证明EF∥DC,而DC=EF,然后即可证明四边形EFCD是平行四边形;(2)过E作EH⊥BC交CB的延长线于H,解直角三角形得到EH=BE=BF=CD,根据平行四边形的面积公式即可得到结论.【解答】证明:(1)∵△ABC是等边三角形,∴∠ABC=60°,∵∠EFB=60°,∴∠ABC=∠EFB,∴EF∥DC(内错角相等,两直线平行),∵DC=EF,∴四边形EFCD是平行四边形;(2)解:过E作EH⊥BC交CB的延长线于H,∵△ABC和△BEF是等边三角形,∴∠ABC=∠EBF=60°,∴∠EBH=180°﹣60°﹣60°=60°,∴EH=BE=BF=CD,∵点D是BC三等分点,∴当CD=BC=2时,平行四边形CDEF的面积=2×=2,当CD=BC=4时,平行四边形CDEF的面积=4×2=8,综上所述,平行四边形CDEF的面积为2或8.【点评】本题考查了等边三角形的性质,平行四边形的判定与性质,熟记各性质与判定方法并准确识图是解题的关键.五、(本大题共2小题,每小题9分,共18分)21.(9分)对于形如的式子可以用如下的方法化简:===+.请仿照这样的方法,解决下列问题.(1)化简:(2)化简求值:已知x=,求(+)•【分析】(1)根据二次根式的性质化简即可;(2)根据分式的混合运算的法则计算即可.【解答】解:(1)===2+;(2)(+)•=×=,∵x===﹣1,∴原式=.【点评】本题考查了分式的化简求值,二次根式的性质,熟练掌握分式的混合运算的法则是解题的关键.22.(9分)如图,在菱形ABCD中,对角线AC与BD交于点O.过点C作BD的平行线,过点D作AC的平行线,两直线相交于点E.(1)求证:四边形OCED是矩形;(2)若CE=1,DE=2,则菱形ABCD的面积是4.【分析】(1)欲证明四边形OCED是矩形,只需推知四边形OCED是平行四边形,且有一内角为90度即可;(2)由菱形的对角线互相垂直平分和菱形的面积公式解答.【解答】(1)证明:∵四边形ABCD是菱形,∴AC⊥BD,∴∠COD=90°.∵CE∥OD,DE∥OC,∴四边形OCED是平行四边形,又∠COD=90°,∴平行四边形OCED是矩形;(2)由(1)知,平行四边形OCED是矩形,则CE=OD=1,DE=OC=2.∵四边形ABCD是菱形,∴AC=2OC=4,BD=2OD=2,∴菱形ABCD的面积为:AC•BD=×4×2=4.故答案是:4.【点评】考查了矩形的判定与性质,菱形的性质.此题中,矩形的判定,首先要判定四边形是平行四边形,然后证明有一内角为直角.六、(本大题共12分)23.(12分)在矩形ABCD 中,AB =6,BC =8,点E 为BC 延长线上一点,且BD =BE ,连接DE ,Q 为DE 的中点,有一动点P 从B 点出发,沿BC 以每秒1个单位的速度向E 点运动,运动时间为t 秒.(1)如图1,连接DP 、PQ ,则S △DPQ = 15﹣t (用含t 的式子表示);(2)如图2,M 、N 分别为AB 、AD 的中点,当t 为何值时,四边形MNQP 为平行四边形?请说明理由;(3)如图3,连接CQ ,AQ ,试判断AQ 、CQ 的位置关系并加以证明.【分析】(1)由勾股定理可求BD =10,由三角形的面积公式和S △DPQ =(S △BED ﹣S △BDP )可求解;(2)当t =5时,可得BP =5=BE ,由中位线定理可得MN ∥BD ,MN =BD =5,PQ ∥BD ,PQ =BD =5,可得MN ∥PQ ,MN =PQ ,可得结论.(3)连接BQ ,由等腰三角形的性质可得∠AQD +∠BQA =90°,由直角三角形的性质可得DQ =CQ ,∠DCQ =∠CDQ ,由“SAS ”可证△ADQ ≌△BCQ ,可得∠AQD =∠BQC ,即可得结论.【解答】解:(1)∵四边形ABCD 是矩形,AB =6,BC =8,∴BC =8,CD =6,∴BD ==10∴BD =BE =10 ∵Q 为DE 的中点,∴S △DPQ =S △DPE ,∴S △DPQ =(S △BED ﹣S △BDP )==15﹣t 故答案为:15﹣t(2)当t =5时,四边形MNQP 为平行四边形, 理由如下:∵M 、N 分别为AB 、AD 的中点, ∴MN ∥BD ,MN =BD =5,∵t =5时,∴BP =5=BE ,且点Q 是DE 的中点, ∴PQ ∥BD ,PQ =BD =5∴MN ∥PQ ,MN =PQ∴四边形MNQP 是平行四边形(3)AQ ⊥CQ理由如下:如图,连接BQ ,∵BD =BE ,点Q 是DE 中点,∴BQ ⊥DE ,∴∠AQD +∠BQA =90°∵在Rt △DCE 中,点Q 是DE 中点, ∴DQ =CQ ,∴∠DCQ =∠CDQ ,且∠ADC =∠BCD =90° ∴∠ADQ =∠BCQ ,且BC =AD ,DQ =CQ ∴△ADQ ≌△BCQ (SAS )∴∠AQD =∠BQC ,且∴∠AQD +∠BQA =90° ∴∠BQC +∠BQA =90°∴∠AQC =90°∴AQ⊥CQ【点评】本题是四边形综合题,考查了矩形的性质,勾股定理,平行四边形的判定和性质,全等三角形的判定和性质,中位线定理,等腰三角形的性质,证明∠AQD=∠BQC 是本题的关键.最新八年级(下)期中考试数学试题(含答案)一、选择题(本大题共6个小题,每小题3分,共18分,每小题只有一个正确选项)1.(3分)使有意义的x的取值范围是()A.x≤3B.x<3C.x≥3D.x>32.(3分)化简的结果正确的是()A.﹣2B.2C.±2D.43.(3分)下列各组数中,不能构成直角三角形的一组是()A.3,4,5B.1,2,C.5,12,13D.6,8,12 4.(3分)如图,▱ABCD的周长为36,对角线AC、BD相交于点O,点E是CD的中点,BD=12,则△DOE的周长为()A.15B.18C.21D.245.(3分)如图,菱形ABCD的对角线AC、BD的长分别为6和8,则这个菱形的周长是()A.20B.24C.40D.486.(3分)如图,在矩形AOBC中,O为坐标原点,OA、OB分别在x轴、y轴上,点B 的坐标为(0,3),∠ABO=30°,将△ABC沿AB所在直线对折后,点C落在点D处,则点D的坐标为()A.(,)B.(2,)C.(,)D.(,3﹣)二、填空题(本大题共6小题,每小题3分,共18分.)7.(3分)与最简二次根式5是同类二次根式,则a=.8.(3分)计算(2+3)(2﹣3)的结果等于.9.(3分)一个三角形的三边分别是、1、,这个三角形的面积是.10.(3分)在Rt△ABC中,∠C=90°,∠A=30°,AB=6,则AC=.11.(3分)当2≤3x+5≤8时,化简+=.12.(3分)已知:矩形ABCD,AB=5,BC=4,P是边CD上一点,当△PAB是等腰三角形时,求PC的长可以是.三、(本大题共5小题,每小题6分,共30分)13.(6分)计算:(1)+|﹣2|﹣()﹣1(2)4+﹣+414.(6分)长方形的长是3+2,宽是3﹣2,求长方形的周长与面积.15.(6分)如图,一架梯子长2.5米,斜靠在一面墙上,梯子底端离墙0.7米,如果梯子的顶端下滑0.4米,那么梯子的底部在水平方向上滑动了多少米?16.(6分)已知:如图,四边形ABCD是菱形,F是AB上一点,DF交AC于E.求证:∠AFD=∠CBE.17.(6分)如图,在▱ABCD中,AB=10,AD=6,AC⊥BC.求BD的长度.四、(本大题共3小题,每小题8分,共24分).18.(8分)《九章算术》是我国古代最重要的数学著作之一,在“勾股”章中记载了一道“折竹抵地”问题:“今有竹高一丈,末折抵地,去本三尺,问折者高几何?”可翻译为:有一根竹子高一丈,今在A处折断,竹梢落在地面的B处,B与竹根部C相距3尺,求折断点A与地面的高度AC.(注:1丈=10尺)19.(8分)如图,四边形ABCD是正方形,△EBC是等边三角形.(1)求证:△ABE≌△DCE;(2)求∠AED的度数.20.(8分)如图,已知△ABC是等边三角形,点D、F分别在线段BC、AB上,DC=BF,以BF为边在△ABC外作等边三角形BEF.(1)求证:四边形EFCD是平行四边形.(2)△ABC的边长是6,当点D是BC三等分点时,直接写出平行四边形CDEF的面积.五、(本大题共2小题,每小题9分,共18分)21.(9分)对于形如的式子可以用如下的方法化简:===+.请仿照这样的方法,解决下列问题.(1)化简:(2)化简求值:已知x=,求(+)•22.(9分)如图,在菱形ABCD中,对角线AC与BD交于点O.过点C作BD的平行线,过点D作AC的平行线,两直线相交于点E.(1)求证:四边形OCED是矩形;(2)若CE=1,DE=2,则菱形ABCD的面积是.六、(本大题共12分)23.(12分)在矩形ABCD中,AB=6,BC=8,点E为BC延长线上一点,且BD=BE,连接DE,Q为DE的中点,有一动点P从B点出发,沿BC以每秒1个单位的速度向E 点运动,运动时间为t秒.(1)如图1,连接DP、PQ,则S=(用含t的式子表示);△DPQ(2)如图2,M、N分别为AB、AD的中点,当t为何值时,四边形MNQP为平行四边形?请说明理由;(3)如图3,连接CQ,AQ,试判断AQ、CQ的位置关系并加以证明.2018-2019学年江西省赣州市宁都县八年级(下)期中数学试卷参考答案与试题解析一、选择题(本大题共6个小题,每小题3分,共18分,每小题只有一个正确选项)1.(3分)使有意义的x的取值范围是()A.x≤3B.x<3C.x≥3D.x>3【分析】先根据二次根式有意义的条件列出关于x的不等式,求出x的取值范围即可.【解答】解:∵式子有意义,∴x﹣3≥0,解得x≥3.故选:C.【点评】本题考查的是二次根式有意义的条件,熟知被开方数具有非负性是解答此题的关键.2.(3分)化简的结果正确的是()A.﹣2B.2C.±2D.4【分析】根据=|a|计算即可.【解答】解:原式=|﹣2|=2.故选:B.【点评】本题考查了二次根式的性质与化简:=|a|.3.(3分)下列各组数中,不能构成直角三角形的一组是()A.3,4,5B.1,2,C.5,12,13D.6,8,12【分析】由勾股定理的逆定理,只要验证两小边的平方和等于最长边的平方即可.【解答】解:A、32+42=52,能构成直角三角形;B、12+()2=22,能构成直角三角形;C、52+122=132,能构成直角三角形;D、62+82≠122,不能构成直角三角形.故选:D.【点评】本题考查勾股定理的逆定理的应用.判断三角形是否为直角三角形,已知三角形三边的长,只要利用勾股定理的逆定理加以判断即可.4.(3分)如图,▱ABCD的周长为36,对角线AC、BD相交于点O,点E是CD的中点,BD=12,则△DOE的周长为()A.15B.18C.21D.24【分析】利用平行四边形的性质,三角形中位线定理即可解决问题;【解答】解:∵平行四边形ABCD的周长为36,∴BC+CD=18,∵OD=OB,DE=EC,∴OE+DE=(BC+CD)=9,∵BD=12,∴OD=BD=6,∴△DOE的周长为9+6=15,故选:A.【点评】本题考查平行四边形的性质、三角形的中位线定理等知识,解题的关键是熟练掌握三角形中位线定理,属于中考常考题型.5.(3分)如图,菱形ABCD的对角线AC、BD的长分别为6和8,则这个菱形的周长是()A.20B.24C.40D.48【分析】由菱形对角线的性质,相互垂直平分即可得出菱形的边长,菱形四边相等即可得出周长.【解答】解:由菱形对角线性质知,AO=AC=3,BO=BD=4,且AO⊥BO,则AB==5,故这个菱形的周长L=4AB=20.故选:A.【点评】本题考查了菱形面积的计算,考查了勾股定理在直角三角形中的运用,考查了菱形各边长相等的性质,本题中根据勾股定理计算AB的长是解题的关键,难度一般.6.(3分)如图,在矩形AOBC中,O为坐标原点,OA、OB分别在x轴、y轴上,点B 的坐标为(0,3),∠ABO=30°,将△ABC沿AB所在直线对折后,点C落在点D 处,则点D的坐标为()A.(,)B.(2,)C.(,)D.(,3﹣)【分析】根据翻折变换的性质结合锐角三角函数关系得出对应线段长,进而得出D点坐标.【解答】解:∵四边形AOBC是矩形,∠ABO=30°,点B的坐标为(0,3),∴AC=OB=3,∠CAB=30°,∴BC=AC•tan30°=3×=3,∵将△ABC沿AB所在直线对折后,点C落在点D处,∴∠BAD=30°,AD=3,过点D作DM⊥x轴于点M,∵∠CAB=∠BAD=30°,∴∠DAM=30°,∴DM=AD=,∴AM=3×cos30°=,∴MO=﹣3=,∴点D的坐标为(,).故选:A.【点评】此题主要考查了翻折变换以及矩形的性质和锐角三角函数关系,正确得出∠DAM =30°是解题关键.二、填空题(本大题共6小题,每小题3分,共18分.)7.(3分)与最简二次根式5是同类二次根式,则a=2.【分析】先将化成最简二次根式,然后根据同类二次根式得到被开方数相同可得出关于a的方程,解出即可.【解答】解:∵与最简二次根式是同类二次根式,且,∴a+1=3,解得:a=2.故答案为2.【点评】本题考查了同类二次根式的定义:化成最简二次根式后,被开方数相同,这样的二次根式叫做同类二次根式.8.(3分)计算(2+3)(2﹣3)的结果等于﹣3.【分析】利用平方差公式计算.【解答】解:原式=24﹣27=﹣3.故答案为﹣3.【点评】本题考查了二次根式的混合运算:先把二次根式化为最简二次根式,然后合并同类二次根式即可.在二次根式的混合运算中,如能结合题目特点,灵活运用二次根式的性质,选择恰当的解题途径,往往能事半功倍.9.(3分)一个三角形的三边分别是、1、,这个三角形的面积是.【分析】首先根据勾股定理逆定理可判定此三角形是直角三角形,然后再计算面积即可.【解答】解:∵()2+12=3=()2,∴这个三角形是直角三角形,∴面积为:×1×=,故答案为:.【点评】此题主要考查了二次根式的应用以及勾股定理逆定理,关键是正确判断出三角形的形状.10.(3分)在Rt△ABC中,∠C=90°,∠A=30°,AB=6,则AC=3.【分析】利用“在直角三角形中,30°角所对的直角边等于斜边的一半”可求出BC的长度,再利用勾股定理即可求出AC的长度.【解答】解:依照题意画出图形,如图所示.在Rt△ABC中,∠C=90°,∠A=30°,AB=6,∴BC=AB=3,∴AC==3.故答案为:3.【点评】本题考查了含30度角的直角三角形以及勾股定理,牢记“在直角三角形中,30°角所对的直角边等于斜边的一半”是解题的关键.11.(3分)当2≤3x+5≤8时,化简+=6.【分析】直接求出x的取值范围,进而化简二次根式得出答案.【解答】解:∵2≤3x+5≤8,∴﹣1≤x≤1,∴+=3﹣x+x+3=6.故答案为:6.【点评】此题主要考查了二次根式的性质与化简,正确掌握二次根式的性质是解题关键.12.(3分)已知:矩形ABCD,AB=5,BC=4,P是边CD上一点,当△PAB是等腰三角形时,求PC的长可以是 2.5或3或2.【分析】三种情况:①PA=PB,求出P在AB的垂直平分线上,即可求出DP,进而得出CP;②PA=AB=5,根据勾股定理求出DP,进而得出CP;③PB=BA=5,同法求出CP.【解答】解:有三种情况:①PA=PB,∵P在AB的垂直平分线上,∴DP=PC=×5=2.5;②PA=AB=5,∵矩形ABCD,∴∠D=90°;由勾股定理得:DP=,∴CP=5﹣3=2,③PB=BA=5,同法求出CP=3,故答案为:2.5或3或2.【点评】本题主要考查对矩形的性质,勾股定理,线段的垂直平分线性质,等腰三角形的性质等知识点的理解和掌握,能求出符合条件的所有情况是解此题的关键.三、(本大题共5小题,每小题6分,共30分)13.(6分)计算:(1)+|﹣2|﹣()﹣1(2)4+﹣+4【分析】(1)根据分母有理化、绝对值的意义和负整数指数幂的意义计算;(2)先把二次根式化为最简二次根式,然后合并即可.。

2018—2019学年度第一学期期中测试卷

2018—2019学年度第一学期期中测试卷

2018—2019学年度第一学期期中测试卷八年级(初二)英语听力材料、参考答案及评分意见一、听力 (共25分)A)请听下面8段对话。

每段对话后有一小题,从题中所给的A、B、C、三个选项中选出最佳选项。

听完每段对话后,你都将有10秒钟的时间回答有关小题和阅读下一小题。

每段对话读两遍。

(每题1分)1. M: Did you visit the museum last weekend, Shirley?W: No, 1 didn’t. I just stayed at home. I didn’t feel well.2.M: What does Billy usually do on weekends?W: He usually goes to the movies. But his brother Jim often reads books on weekends.3.M: Do you know where Karen is?W: She is in the library. She goes there every day.4.W: Sam, what about watching a movie?M: It’s too boring. I want to read a book.5.W: Why didn’t you go to watch the football match , Tom?M: I’d like to go. But my mother asked me to look after our dog. It was ill.6.M: Emma, you and Jenny both have blue eyes and black hair.W: Yes but I have long curly hair and she has short straight hair.7.M: Hi, I’m doing a survey for the city newspaper. What’s the best clothing store in town?W: Hmm, I think Jason’s is the best.8. W: Did you do anything new on your trip, Dale?M: Yeah! I tried paragliding and swimming.B)请听下面4段对话或独白。

2018-2019上海市民办华育中学八年级期中考试试卷(无听力)

2018-2019上海市民办华育中学八年级期中考试试卷(无听力)

2018-2019上海市民办华育中学八年级期中考试试卷Part II V ocabulary and GrammarI. Choose the best answer. 20%26. Be careful not to wake the baby.A. /keə’fl/B. /kiə’fl/C. /’keəfl/D. /’kiəfl/27. Which of the following underlined parts is different in pronunciation from others?A. She was standing o n one foot.B. I won’t leave u ntil you come back.C. She was unable to c o ntain her excitement.D. Who will pay the electricity bill?28. A little boy wrote “u” and “n” on the wall.A. a; anB.an; aC.an; anD. a; a29. I have lost my pen. I must buy today.A. itB. thisC. oneD. that30. Y ou’ve got so many books. Could you please lend me to read?A. anythingB. anyC. somethingD. some31. They’ve taken everything with .A. themB. themselvesC. theyD. their32. She had to borrow a new in order to attend the party.A. clothB. clothesC. clothingD. dress33. useful information board you have made!A. HowB. WhatC. How aD. What a34. I am not sure how long Oliver .A. has joined the armyB. has joined in the armyC. has served the armyD. has served in the army35. What is the chemical symbol water?A. aboutB. ofC. onD. for36. a father, she has a younger brother to support.A. BesideB. BesidesC. ExceptD. Except for37. I hate to admit it, I think I was wrong.A. andB. butC. orD. so38. He’s an engineer, he can deal with problems.A. electricity, electricalB. electrical, electricalC. electrical, electricD. electrical, electricity39. History repeat itself.A. needs notB. need notC. doesn’t needD. need not to40. What did you about water pollution at the meeting?A. talkB. sayC. speakD. tell41. In the past few years, great changes in Shanghai.A. there wereB. there have hadC. there had beenD. there have been42. Joyce suggested .A. them talk it over among themselvesB. them talked it over among themselvesC. they talk it over among themselvesD. they talked it over among themselves43. Where do you think T onny the jacket?A. did, buyB. did, boughtC. has, boughtD. /, bought44. Which sentence is correct?A. I wonder where you have gone.B. I wonder where they visited.C. I wonder when you have finished the task.D. I wonder what is the matter with you.45. -- John and I will celebrate our fortieth wedding anniversary next month.-- Oh, !A. cheer upB. well doneC. go aheadD. congratulationsII. Fill in the blanks with the proper forms of the words: 7%46. They have both behaved than before and I am very hurt. (bad)47. Y ou can reduce these long to simple charts or diagrams. (explain)48. In cold weather, everything seems to be frozen. (freeze)49. Our government is trying to take to prevent and control pollution. (measure)50. My father exercises because he doesn’t have enough time. (regular)51. They do not have the to apologize for their actions. (encourage)52. A friend is a living treasure, and if you have one, you have one of the gifts in life. (value)III. Fill in the blanks with the verbs in their proper forms: 7%53. Such negative thoughts and feelings make some people feel like up.(give)54. I didn’t know a thing about the verbs, for I my lesson. (not study)55. The miners alive when the tunnel collapsed. (bury)56. Look! Jerry and he belongs to a ski club. (ski)57. I hope you the secret of how to be happy. (find)58. I don’t think Renee saw us. She a watch for her father. (choose)59. Let us hold our hands and the environment. (not pollute)IV. Rewrite the sentences as required: 6%60 . D a i s yw a s t o l d n o Daisy was told not to eat sweets any more, ?61 .T h ed o c t o The wounded good care of by the doctor.62 .Id o n ’t I don’t know go with you tomorrow.63 . L i f ei n o will life in our cities without electricity?64 .B e n Benny wanted to his sister.65. machine, makes, kinds, works, it, goods, the, of, that, all(连词成句)V. Complete the following passage with the words or phrases in the box. Each word or phrase can only be usedMore Than a Ride to SchoolThe National Education Association claims. “The school bus is a mirror of the community.” They further add that, unfortunately, what appears on the exterior does not always reflect the reality of a chosen community. They are right--- sometimes it reflects more! Just ask Liesl Denson. Riding the school bus has been more than a ride to school for Liesl. Bruce Hardy. school bus driver for Althouse BUS Company has been Liesl’s bus driver since kindergarten. Last year when Liesl’s family moved to Parkesburg, 66 her bus went by her new residence, she requested to ride the same bus.This year Liesl is a senior and will enjoy her last year riding the bus. She sa ys, “It’s been a great ride 67 ! My bus driver is so cool and has always been a good friend and a good listener. Sometimes when you’r e a child, adults do not think that what you have to say is important. Mr. Hardy always listens to what you have to say and makes you feel important.” Her friends Ashley Batista and Amanda W olfe agree 68what Liesl said. Bruce Hardy has been making Octorara students feel special since 1975. This year he will celebrate 40 years working for Althouse Bus Company. Larry Althouse, president of the company, acknowledges Bruce Hardy’s outstanding record, “Y ou do not come by employees like Bruce these days. He has never missed a day of work and has a perfect driving record. He was recognized in 2000 by the Pennsylvania School Bus Association for driving 350,000 accidentfree miles. Hardy’s reputation is made 69 evident through the relationships he has made with the students that ride his bus.”Althouse further adds, “Althouse Bus Company was established 70 years ago and has been providing quality transportation 70 . My grandfather started the business with one bus. Althouse Bus Company is delighted to have the opportunity to bring distinctive and safe service to our local school and community and looks forward to continuing to provide quality service for many more years to com e.”Three generations of business is not all the company has enjoyed. Thanks 71 drivers like Bruce Hardy, they have been building relationships through generations, Liesl’s mother Carol also enjoys fond memories of riding Bruce Hardy’s bus to the Octorara School District.Part III Reading and WritingA. Choose the best answer 5%The Exploding Lakes of CameroonWhat comes to mind when you think of a lake? Y ou probably imagine a pretty scene with blue water, birds, and fish. For the people in the northwestern Cameroon, however, the image is very different. For them, lakes may mean terrible disasters. In 1984, poisonous gases exploded out of Lake Monoun and came down into the nearby villages, killing thirty -- seven people. T wo years later, Lake Nyos erupted a cloud of gases rolled down the hills and into the valleys and killed1,700 people.Lake Nyos and Lake Monoun are crater (火山口) lakes. They were formed when water collected in the craters of old volcanoes. The volcanoes under Lake Nyos and Lake Monoun are not active anymore. However, poisonous gases from the center of the earth continue to flow up through cracks in the bottom of the lake. This is normal in a crater lake. In most crater lakes, these gases are released often because the water ‘t urns over’ regularly. That is, the water from the bottom of the lake rises and mixes with the water at the top, allowing the gases to escape slowly.However, in Lakes Nyos and Monoun, there is no regular turning over. No one knows the reason for this fact, but as a result, these lakes have more gases tapped at the bottom than other crater lakes. In fact, scientists who have studied LakesNyos and Monoun have found 16,000 times more gases. When a strong wind, cool weather, a storm, or a landslide (滑坡)causes the water to turn over suddenly, the gases escape in a violent explosion.In the past, no one knew when the gases might explode, so there was no way for the villagers to escape disaster. Now scientists from the United States, France, and Cameroon have found a way to reduce the gas pressure at the bottom of Lake Nyos. They stood a 672-foot plastic pipe in the middle of the lake, with one end of the pipe near the bottom and the other end in the air. Near the top of the pipe, the team put several holes that could be opened or closed by a computer. Now, when the gas pressure gets too high, the holes are opened and some of the gas-filled water shoots up through the pipe into the air like a fountain. With less pressure, a disastrous explosion is much less likely. However, the scientists are not sure that one pipe will be enough to prevent explosions. They hope to put in others soon and they plan to install a similar pipe and a computer system at Lake Monoun as well.T o protect people nearby until all of the pipes are in place, the scientists have installed early warning systems at both lakes. If the gas pressure rises to a dangerous level, computers will set off loud sirens (警报) and bright lights to warn thepeople in the villages. That way, they will have time to escape from the dangerous gases.72. What will happen when Lake Nyos and Lake Monoun explode?A. W ater will flow down the hills.B. Poisonous gases will be released suddenly.C. A strong wind will rise from the lakes.D. The volcanoes will come to life.73. Which of the following statements about Lake Nyos and Lake Monoun is true?A. They were formed in 1984B. They are at the top of two active volcanoes.C. They are not like most other crater lakesD. W ater in them turns over regularly.74. Lake Nyos and Lake Monoun explode because .A. the gases rise to the top and mix with airB. people from the villages turn over the waterC. scientists have put in a computer systemD. they have more gases trapped at the bottom than other crater lakes75. A team of scientists has .A. erected a pressure-releasing pipe in the lakeB.identified the gases at the bottom of the lake C.built a beautiful fountain near the lakesD. removed all dangerous gases from the lakes76. What do we learn from the last paragraph?A. Scientists are planning to install pipes in all crater lakesB. Scientists still do not know how to prevent gas explosionsC. Explosion disasters could be avoided in the futureD. W arming systems have been set up in the villages nearby.B. Choose the words or expressions and complete the passage. 8%It was just getting dark; there was a touch of fog and I was on a lonely stretch of road. But I was going along cheerfully, thinking about the dinner I would eat when I got to Salisbury.I was going along quietly at about thirty-five miles an hour when suddenly I heard a scream, a woman’s scream –“Help!” I looked round, but the only 77 _ of life was a large, black, rather suspicious-looking(看起来可疑的) car just turninga bend in the road about a hundred yards away. That was 78 the cry had come from: I 79 speed and went after it. I thought the driver saw what I was doing, for he did the same and began to draw away from me. As I drew near,the girl’s voice came again, a lovely voice but trembling(发抖)with fear.“Let me go, you fool; you’r e hurting me. Oh! O h!”I felt my blood 80 _. The fog was coming down thicker now, the countryside was lonelier. The man in the car had no 81 noticed this. Again, came a cry.“Drop the knife, fool. Oh!” Then a cry and a groan.If I was to save her, it was now or 82 _. Perhaps even now I was too late. But if I couldn’t save the girl, I would 83_ try to bring the murderer to the police station. The car was only a couple of yards away now. I drove the bike right across its path, and its brakes screamed as the driver tried to pull it over and crashed into the ditch (沟渠) on the side of the road. The door of the car was pushed open angrily and a dark, evil-looking fellow stepped out, mad with anger.“Foo l!” he shouted _84_ he came towards me with his fist raised to hit me. But I was quicker than he. I put all I knew into a blow that would have knocked out Joe Louis. It caught him right on the ground without a sound. I rushed to the car, pulled the door and peered inside. There was no girl there. Suddenly from the back of the car came a voice.“Y ou have been listening to a radio play. Murder in Hollywood, with Mae Garbo and Clark T aylor. The news will follow immediately. “77. A. person B. sign C. figureD. form7 8A. how B. when C. what D. where7 9A. put aside B. put up C. put down D. put on8 0A. boil B. run C. come D. freeze8 1A. sign B. effort C. doubt D.troubles8 2A. late B. then C. ever D. never8 3A. at most B. at least C. at last D. at first8 4A. before B. after C as D. whileC. Read the passage and fill in the blanks with proper words 6%A Chimps(黑猩猩) will cooperate in certain ways, like gathering in war parties to protect their territory. But beyond the minimum requirements as social beings, they have little instinct (本能) to help one a 85 . Chimps in the wildseek food for themselves. Even chimp mothers regularly decline to share food with their children, who are able from a young age to gather their own food.In the laboratory, chimps don’t naturally share food either. If a chimp is put in a cage where he can pull in one plate of food for himself or, with no great effort, a plate that also provides food for a neighbor to the next cage, he will pull at random---he just does n’t care whether his neighbor gets fed or not. Chimps are truly selfish.Human children, on the other hand are extremely cooperative. From the earliest ages, they desire to help others, to share information and to participate in a 86 common goals. The psychologist Michael T omasello has studied this cooperativeness in a series of experiments with very young children. He finds that if babies aged 18 months see a worried adult with hands f 87 trying to open a door, almost all will immediately try to help.There are several reasons to believe that the urges to help, inform and share are not taught, but n _88_ possessed in young children. One is that these instincts appear at a very young age before most parents have started to trainreason isthat social intelligence d 89in children before their general cognitive(认知的)skills, at least when compared with chimps. In tests conducted by T omasello, the children did no better than the chimps on the physical world tests, but were considerably better at understanding the social world.The core of what children’s minds have and chimps’ don’t is what T omasello calls shared intentionality. Part of this ability is that they can infer what others know or are thinking. But b _90_ that, even very young children want to be part of a shared purpose. They actively seek to be part of a “we”, a g roup that intends to work toward a shared goal. D. Read the following passage and answer the questions 5%Being an astronaut sounds cool, doesn’t it? In space, they can do some pretty amazing things, like floating in zero gravity.However, there are also plenty of things that astronauts can’t do because of their weightless environment, and that’s very sad. What’s worse, they can’t even let their sadness show---because it’s impossible to cry in zero gravity.Of course, astronauts can still have tears. But crying is much more difficult in space. Without gravity, tears don’t flow downward out of the eyes like they do on the earth. This means that when you cry in space, your tears have nowhere to go -- they just stick to your eyes.In May 2011, astronaut Andrew Feustel experienced this during one of his spacewalks. “T ear s,” he said, “don’t fall off your eyes. They just stay there. “Be sides making your vision unclear, this can also cause physical pain. Back on the earth, tears are supposed to bring comfort to the eyes. But that’s not the same in space. The space environment dries out astronaut s’eyes, and when tears suddenly wet the eyes, it can cause pain rather than comfort. “My right eye is painful like cr azy” F eustel told his teammate during the walk.Since gravity doesn’t work in space astronauts need some extra help to get rid of the tears.Feustel chose to rub his eyes against his helmet (头盔) to wipe the tears away. Another choice is to just wait -- “W hen the tears get big enough, they simply break free of the eye and float around, astronaut Ron Parise said.There are lots of small things -- things like crying that we are so used to on the earth. W e usually take them for granted, until they become a problem in a completely different environment, like space. There, astronauts can’t talk to each other directly. They can’t eat or drink in normal ways; They can’t even burp (打嗝) because there is no gravity to hold the food down in their stomachs. If they do burp, they just end up throwing up (呕吐) everything in their stomachs, according to the UK National Space Center.Thus perhaps it’s only space explorers who can honestly sa y: “Gravity, you’r e the best.”91. Crying isn’t more difficult in space than on the earth, is it?92. Who experienced that the tears in space caused pain rather than comfort?93. How do astronauts get rid of the tears in space?94. Why can’t astronauts burp in space?95. In the last paragraph, the writer says: perhaps it’s only space explorers who can honestly sa y: “Gravity, you’r e thebest. “Do you agree with the writer? Why or why not?E. Writing 10%Write a passage of at least 60 words on the topic. “The fun of learning _(English/painting/to play the piano/to play basketball..).Necessary points1. What’s your experience of learning _?2. Why do you think learning is fun?(注意:短文中不得出现考生的姓名、校名及其他相关信息,否则不予评分.)2018-2019上海市民办华育中学八年级期中考试试卷26-30 CAACD 31-35 ADDDD 36-40 BBBBB 41-45 DCDDD46. worse 47. explanations 48. freezing 49. measures 50. irregularly 51. courage 52. most valuable53. giving 54. hadn’t studied 55. were buried 56. is skiing 57. will find 58. was choosing 59. not pollute60. wasn’t she 61. were taken 62. whether to 63. What be like 64. play a trick on65. It works that the machine makes all kinds of goods.66-71: HFDGEA 72-76:BCAAC 77-81 BDDAC 82-84 DBC85.another 86.achieving 87.full 88.naturally 89.develops 90.besides91.No,it isn’t92. Astronaut Andrew Feustel.93. They rubbed their eyes against their helmet to wipe the tears away or wait until the tears getbig enough to simply break free of the eyes and floated around.94. Because there is no gravity to hold the food down their stomachs.95. Y es, I do. Because with gravity we can do many things in comfort rather than in pain such as cry, burp and so so.。

2018-2019年度八年级期中英语测试卷.doc

2018-2019年度八年级期中英语测试卷.doc

2018-2019年度八年级期中英语测试卷2018-2019年度八年级期中英语测试卷一、单项选择。

(共15小题,每小题1分,计15分)( )1.james is ________ boy.a. a 18-month-oldb. a 18 months oldc. an 18-month-oldd. an 18-months-old( )2.----- the soccer game was so _____.----- yes, i felt _____ with it.a. bored; boringb. boring; boredc. bored; boredd. boring; boring( )3.please turn on(打开)the tv. i ____ what the weatherwill be like tomorrow.a. wonderb. feedc. knowd. cross( )4.—how often do you drink milk?—i don’t like it, so i _____drink it.a. alwaysb. usuallyc. hardly everd.often( )5. tina is _____ better at physics than tara.a. moreb. muchc. veryd. a lot of( )6. it’s eight o’clock. the students _____ an english class.a. haveb. havingc. is havingd. are having( )7. staying with family and friends is one of________________ things in the world.a. the happiestb. happierc. the happyd. happiest( ).8.china’s got talent is becoming ________________.a. more and more creativeb. creativer and creativerc. more creative and more creatived.most creative and most creative( )9.all these talent shows have one thing________________ common.a. onb. inc. atd. for( )10.the movie is boring.he ___________ it.so he goes home.a.can’t standb.lovesc.doesn’t mindd.likes( )11. —morning, class. is ________________ here?—no, sir. tom is absent(缺席的).a. anybodyb. everybodyc. nobodyd. somebody( )12. his home is _____________ the school, so he walksto school every day.a. close tob. far fromc. close fromd. far to( )13、---what do you want to do when you are in american?---i expect ____________ english well. a、learnb、to learnc、learningd、learned( )14. —don’t you think there are too many cars in ourcity?—i really think so. if there are ________ peopledriving, there will be __ ______ noise. a. less; lessb. fewer; fewerc. less; fewerd. fewer; less( )15. of the three students, one is from london,_________ two are from new york. a. other b.the other c. another d. some other二、完形填空。

华育中学2018八年级英语期中试卷

华育中学2018八年级英语期中试卷

华育中学 2017-2018 学年第一学期期中试卷八年级英语2017.11(满分 150 分,考试时间 100 分钟)Part 1Listening (第一部分 听力) I. Listening Comprehension 20%A. Listen and choose the right picture 3%1.2. 3. 4. 5. 6. B. Listen to the dialogue and choose the best answer to the question you hear 3.5%7. A) 8. A) Shy A teacher B) B) Pretty A TV host C) C) Serious A bank clerk D) D) ActiveA writer9. A) 2:00 B) 2:15 C) 2:30 D) 2:4510. A) By check B) By cash C) By credit card D) By Apple Pay11. A) A TV guide B) A part-time job C) A plan D) A choice of courses12. A) The shoes are too heavy B) The ground is wetC) She doesn’t like the shoes D) It is raining outside.13. A) Some Chinese were hit by local people. B) An earthquake occurred there last night.C) Some tourists were killed in a flash flood. D) Some tourists were injured in a car accident.14. A) A good website helped Alina get some customers.B) Alina helps people by donating clothes and furniture.C) Alina borrowed money from the bank to start her business.D) A li n a ’s bu s i n e ss i s t o g i v e p e op l e a dv i ce on c r ea ti ng website.C. Listen to the passage and tell whether the following statements are true or false 3.5%15. Barry Haddow travels from Wales to London every day.16. T h e “C o mm u t e r o f t h e Y ea r ” c o m p e titi on w a s o r g a n i z ed by an early morning TV program.17. Mr. Haddow won because his commute takes the longest time.18. He travels most of the way by train, and then by taxi.19. H e do e s n ’t li k e w a l e s , bu t it ’s no t a s e xp e n s i v e a s L ondon .20. He won a rail holiday for himself and his family.D. Listen to the passage and complete the following sentences 10%21. William Baldock is a hero after helping his mother when she .22. He rang for an ambulance, telephoned his father , and then his grandmother.23. While waiting for people to come, William his 18-mongth-old sister.24. Steve Lyn was amazed that William knew the to dial.25. Mrs. Baldock was very both William and the ambulance service,Part 2 Phonetics, Vocabulary and Grammar(第二部分语音、词汇和语法)Ⅱ. Choose the best answer 20%26.Which of the underline parts has the different pronunciation from the others?A) business B) luckily C) assistant D) simple27.Gold is measured in ounces when bought in the international market while diamond is sold by carat.A) a B) / C) the D) an28.Can you see the vase the corner of the table and the cat the corner of the room?A)on…i n B)a t…i n C)on…a t D)i n…a t29.Can you find the answer the question the newspaper?A) of…on B) of…in C) to…on D) to…in30.The car disappeared in a flash after it hit the old lady. The underlined part means .A) immediately B) nearly C) especially D) badly31.the books in the school library will be donated to the Hope Project.A) Nine hundred B) Nine hundreds C) Nine hundred of D) Nine hundreds of secretary Hilary Clinton said recently that she soon to enjoy private life.A) retired B) would retire C) had retired D) will retire33.If a computer crashes, you will lose the file you unless you save it regularly.A) are working B) work C) will work D) worked34.The cause he had devoted himself to a perfect success.A) proving B) proved C) was proved D) has been proved35.Fortunately, we had bought a metro map, we would have lost our way home.A) what B) where C) without which D) that36.He is the only one of the employees well paid in this enterprise.A) which is B) who get C) who are D) that is37, I like the way he talks and laughs. the saying goes, beauty is in the eye of the beholder.A)in w h i c h…A s B)w h i c h…A s C)/…W h i c h D)t h a t…L i k e38.I t w a s a m ee ti ng i m po r t a n ce I d i dn’t r ea li ze at that time.A)why B) which C) where D) whose39.–I find it fun and challenging.- It is a job you are doing something serious but interesting.A)where B) which C) when D) that40.Which of the following sentence is correct?A)I think he shouldn’t give up.B)He has not decided when he would fly to Beijing.C)I asked him when he had arrived.D)Could you tell me which is the way to the hospital?41.The hotel is almost finished, but it needs one or two weeks to get ready for guests.A)only B) also C) still D) even42.It is time for him to these foolish ideas and become serious.A)put away B) put up C) put up with D) put out43.Joint efforts have been made the pressure on water demand.A)relieve B) relieving C) relieved D) to relieve44.I have homework to do today, and some of the English exercises are difficult for me.A)too much …too much B) too much… much tooC)much too…t oo m u c h D)m u c h t oo…much too45.People who live in a small village are bound to see a good of each other.A)sum B) quantity C) deal D) amountCompany Builds World’s First Automobile Vending Machine (自动贩卖机) Thanks to used-car website Carvana, it is now possible to buy your own set of wheels at the touch of a bu tt on,fr o m t h e w o r l d’s f i r s t a nd on l y c o i n-operated car vending machine in Nashville,Tennessee. It’s quick, easy, and not cheap, but cheaper than buying a car the old way.The company has been working on the concept for the past two years. Their original car vending m ac h i n e w a s i n s t a ll e d i n A tl a n t a i n2013.B u t t h e y’v e s p e n t ti m e46the design,in order to take user experience to the next level.“O u r n e w V e nd i ng M ac h i n e i s a s t a t e-of-the-art,multi-story s t r u c t u r e t h a t d e li v e r s ou r c u s t o m e r s’ca r s by m e r e l y inserting a special c o i n,”s a i d C a r v a n a C E O Ernie Garcia.The machine 47 a five-story glass tower that can hold up to 20 cars at a time. The tower basically serves as a pickup point for used cars that customers 48 through the website, 49 competitive pricing and eliminating delivery costs.Customers can 50 a long list of specifications, ratings, reviews, and lots of other details a bou t t h e ca r s t h e y’r e i n t e r e s t e d i n on t h e C a r v a n a w e b s it e.T h e y e v e n get virtual tours that point out every scratch on the body of the car. Once the car is chosen and paid for, the company usually delivers the car to the customer for a seven-day trial period. This usually means the delivery costs are worked into the price of the vehicle.But with the Vending Machine,customers are able to go to p i c k up t h e i r ca r s s t r a i gh t a w a y.I t’s a win-win 51 that allows Carvana to cut down on staff and overhead (间接费用), and save customers about $2,000 52 . According to the company, it also makes for a great buying experience –placing an oversized coin in a slot (硬币投币口) and watching their car roll down automatically.“Caravan’s mission i s to 53 a better way to buy a car, and this new Vending Machine will be a one-of-a-kind experience,mirroring j u s t ho w s i m p l e a nd ea s y w e’v e m a d e it t o buy a ca r on li n e,” Garcia said. He added the company plans to build more car vending machines in the future.Ⅳ. Complete the sentences with the given words in their proper forms 8%54.Is it right to say we count in because we have ten figures? (ten)55.Henry was so excited when receiving the guitar as a gift, for it was his favoritemusical instrument. (electricity)56.He would like to spend as much time as he can ideas with his parents.(change)57.The wonderful performance they put on last night was beyond H o w a r d’s.(expect)58.You should be brave enough to report the you see to the police. (thief)59.In fact, I found some of the students are smart but act . (responsibility)60.Our chemistry teacher told us that we could find either in chemistry lab or in chemical factory. (chemistry)61.You’d better give a full which agrees with the facts of the situation. (explain) V. Rewrite the following sentences as required 14%62.I will finish my homework in one or two hours. (对划线部分提问)will you finish your homework?63.The firemen stopped working when all the workers were saved. (保持句意基本不变)The firemen stop working all the workers were saved.64.The news report is very wonderful.(改为感叹句)wonderful news report it is!65.Now students rarely use abacuses to deal with math problem. (改为反意疑问句)Now students rarely use abacuses to deal with math problem, ?66.Do you know whose house this was in the 20th century? (保持句意基本不变)Do you know this house in the 20th century?67.She asked me if I would go to the cinema the next day. (改为简单句)She asked me go to the cinema the next day.68.you, than, shorter, to, used, she, that, believe, to, hard, is, it, be (连词成句)Translation 10%69.The computers can(在一瞬间精确地给出这道题的答案)70.He has finished (对机器人编程).Now it is(足够聪明来更好地接受人们的指令)han rs use. The company lized ridesharing 71. The father always rides his bike to(地铁站接他的女儿).72. My boss sometimes (与他的客户一边吃午饭一边讨论公事) 73. The police didn ’t because he_(警察没有把他从监狱释放因为他承认违法了) Part 3Reading and WritingA. Choose the best answer 12% (A)Cities are taking interest in electric scooter-share systems as an affordable transportation to cut down on pollution and traffic jams. The electric scooters, which weigh between 30 and 40 pounds, reach speeds of about 15 mph.In September 2017,Santa Monica, California, became the first U.S. city tohave an electric scooter-share service. Users find and unlock one of the more t 1,000 scooters with a smartphone app. A ride costs $ 1,and then 0.15 cents fo each minute of riding throughout the beach town. Bird, the startup operating the scooter-share, picks up the scooters every n i gh t t o t h e m , a nd p l ace s t h e m a r ound S a n t a M on i ca eac h m o r n i ng r ea dy f o r p e op l e ’ was created by Travis VanderZanden, who once worked in Uber and Lyft, after he rea services failed to help with traffic jams and air pollution. Since its September 2017 beginning, B i r d ’s s y s t e m h a s s e r v e d m o r e t h a n 50,000 r i d e r s w ho h a v e t a k e n 250,000 t r i p s — more than half of w h i c h h a v e b ee n i n t h e l a s t m on t h . I t ’s s i n ce e xp a nd e d (扩 张) to Venice, California, and some neighborhoods in Los Angeles and San Diego. Bird plans to expand to lots of markets by the end of 2018.Competitors , backed by millionaires , are appearing. Two bike-share startups Lime Bike and Spin, have spoken of plans to provide electric scooters in cities this year.Electric scooters have also gotten the attention of Mayor Pete Buttigieg from South Bend , Indiana. The city is interested in using them as a way to improve public transportation. South Bend was one of the first to use bike-share systems, which allow people to park ridesharing bikes on public l a nd . “W e l ov e t o b e ea r l y p i on ee r s ,” s a i d B u tti g i e g . “I f w e w o r k ou t t h e s a f e t y p r ob l e m , w e w ould b e op e n t o w e l c o m i ng t h e t ec hno l ogy .”“W e n ee d t o m a k e s u r e t h e s e n e w t r a n s po r t a ti on s y s t e m s a r e l a w f u l a nd s a f e f o r u s e r s ,”Constance Farrell ,a s pok e s w o m a n f o r t h e c it y o f S a n t a M on i ca t o l d C NN . “W e w ou l d li k e t o s ee e l ec t r i c scooters continue to operate in the city. They a r e i n li n e w i t h our goal of multi-modal living and carbon-li gh t li v i ng . ” A cc o r d i ng t o F a rr e ll ,there have been eight accidents, including one with a serious head injury , in Santa Monica after the scooters rolled out. Users are required to have a d r i v e r ’s li ce n s e (驾 照),should not ride on sidewalks or have other passengers on board.Bird has given out free helmets to some riders and tells its users to ride in bike lanes, but s o m e u s e r s r i d e on s i d e w a l k s , a nd m o s t U .S . s t r ee t s don ’t h a v e bike lanes.“T h e g l ob a l c o mm un it y o f c iti e s i s go i ng t o h a v e t o w o r k t h i s a ll ou t f o r s c oo t e r s ,”B u tti g i e g s a i d . “T h e y ca n m ov e unb e li e v a b l y qu i c k l y . T h a t ’s e x c iti ng ,a nd a littl e d a ng e r ou s . ”74. Why did Travis create Bird Company?A. Because he received support from millionaires and the government.B. Because many cities had electric scooter-share services.C. Because it is lawful and safe to use electric scooters.D. Because cities need better ridesharing services.75. T h e w o r d s “are i n li n e w i t h ” i n Paragraph 6 p r ob a b l y m ea n “ ”.A. stopB. meet the need ofC. changeD. are ahead of76. What can we learn from the passage?A. Future electric scooters will be very slow and sale.B. Electric scooters will cause fewer accidents than cars.C. More cities will try to help with electric scooters service.D. Future traffic problems will be solved with help of electric scooters.(B)Diet Coke, diet Pepsi, diet pills, no-fat diet, vegetable diet…We are surrounded by the word “diet”everywhere we look and listen. We have so easily been attracted by the promise and potential of diet products that we have stopped thinking about what diet products are doing to us. We are paying for products that harm us psychologically and physically.Diet products weaken us psychologically. On one level, we are not allowing our brain to admit that our weight problems lie not in actually losing the weight, but in controlling the consumption of fatty, high-calorie, unhealthy foods. Diet products allow us to jump over the thinking stage and go straight for the counter instead. All we have to do is to swallow or recognize the word “diet” in food brands.On another level, diet products have greater psychological effects. Every time we have a zero-calorie drink, we are telling ourselves without our awareness that we don’t have to work to get results. Diet products make people believe that gain comes without pain, and that life can be without resistance and struggle.The danger of diet products lies not only in the psychological effects they have on us, but also in the physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead of healthy foods means we are preventing our bodies from having basic nutrients(营养成分). Diet foods and diet pills contain zero calorie only because the diet industry has created chemicals to produce these wonder products. Diet products may not be nutritional, and the chemical that go into diet products are potentially dangerous.Now that we are aware of the effects that diet products have on us, it is time to seriously think about buying them. Losing weight lies in the power of minds, not in the power of chemicals. Once we realize this, we will be much better able to resist diet products, and therefore prevent the psychological harm that comes from using them.77.From Paragraph 1, we can learn thatA.diet products can bring out people’s potentialB.people have difficulty in choosing diet productsC.diet products are misleading peopleD.people are fed up with diet products78.The purpose of writing this passage is .A.to warn people of the side effect of diet productsB.tell people how to lose weightC.to advise people to eat diet productsD.to introduce some diet products79.Which of the following shows the structure(结构)of the passage?CP: Central Point P: Point SP: Sub-point(次要点) C: ConclusionB.Choose the words or expressions and complete the passage 12%When we think of green buildings, we tend to think of new ones --- the kind of modern, solar-paneled masterpieces that make the covers of architecture magazines.But the US has more than 100 million existing homes, and it would be incredibly wasteful to tear them all down and replace them with greener versions.An enormous amount of energy and resources went into the construction of those houses.And it would take an average of 65 years for the 80 carbon emissions (排放) from a new energy-efficient ( 节能) home to make up for the 81 lost by destroying an old one.So in the broadest sense, the greenest home is the one that has already been built.But at the same time, nearly half of US carbon emissions come from heating, cooling and powering our homes, offices and other buildings."You can't deal with climate 82 without dealing with existing buildings,"says Richard Moe, the president of the National Trust.With some exceptions, the oldest homes tend to be the least energy-efficient.Houses built before 1939 use about 50more energy per square foot than those built after 2000, mainly due to the tiny cracks and gaps that expand over time and let in more outside air.83 , there are a vast number of relatively simple changes that can green older homes, from 84 ones like Lincoln's Cottage to your own postwar home.And efficiency upgrades (升级) can save more than just the earth; they can help protect property owners from rising power 85 .80. A. reduced B. increased C. used D. destroyed81. A. magazines B. trees C. materials D. resources82. A. improvement B. appearance C. stability D. change83. A. Oppositely B. Unfortunately C. Fortunately D. Frankly84. A. historic B. worthless C. ordinary D. meaningless85. A. prices B. costs C. businesses D. bargainsC.Read the passage and fill in the blanks with proper words 16%H a ili ng fr o m S w e d e n,“p l ogg i ng”i s a f it n e ss c r aze t h a t s ee s p a r ti c i p a n t s p i c k up p l a s ti c litt e r while jogging—adding a virtuous, environmentally driven element to the sport. Plogging appears to have started around 2016, but is now going (86)a , due to increasing awareness and fear over plastic levels in the ocean.The appeal of plogging is its simplicity —all you need is running gear and a bin bag, and the feeling of getting fit while supporting a good cause. By adding regular squats (蹲) to pick up junk and carrying (87)w to jogging, we can assume the health benefits are increased.Running and good causes have always gone hand in hand —just think of all the fundraising marathon r unn e r s do.B u t t h e r e c ou l dn’t b e a m o r e on-trend way of keeping fit than plogging.A ny t h i ng t h a t’s g e tti ng p e op l e ou t i n n a t u r e a nd c onn ec ti ng po s iti v e l y w it h t h e i r e nv i r on m e n t is a good thing, says Lizzie Carr, an environmentalist who helped set up Plastic Patrol, a nationwide campaign to rid ou r i n l a nd w a t e r w a y s o f p l a s ti c po ll u ti on.“T h e r e’s b ee n a r ea l shift in the public mindset around plastics, helped by things like Blue Planet highlighting how disastrous the crisis i s,”s h e s a y s.We need to keep momentum high and the pressure up, and empower people through initiatives like plogging and Plastic Patrol.The Plastic Patrol app (88)a users to map plastic anywhere in the world by collecting discarded items, photographing them and uploading to the app, giving us a better knowledge of what s o r t s o f p l a s ti c a nd w h i c h b r a nd s a r e b e i ng t h r o w n ou t.“I’d u r g e a ll p l ogg e r s t o g e t i nvo l v e d,”adds Carr.P l ogg i ng i s n’t t h e f i r s t f it n e ss t r e nd t o c o m b i n e r unn i ng w i th a good cause.Here are some of our (89)f :Good GymIts idea is (90)s : go for a run, visit an elderly person, have a chat and some tea, and run back.(91)L among the elderly is a growing problem in the UK. With over 10,000 runs so far, however, Good Gym is finding a solution.Guide RunningGuide runners (92)v their time to helping blind people get active. By linking themselves together, the visually impaired individual can feel (93)s while both work up a sweat.Cycling for the HomelessStart-up Stuart Delivery and the Church Housing Trust collaborated last year in bringing clothing and healthy food to the homeless. Deliveries are mostly made by bike, so those who deliver keep fit while helping rough sleepers.D.Answer the questions 10%Everybody likes to laugh sometimes,whether at a funny joke,an a m u s i n g incident or a h il a r i o u s(非常滑稽的)photograph or edians who p a r od y(滑稽地模仿)well known people always t i c k l e m y funny bone!(令人发笑)The great thing is that once we've had a good laugh, we feel happier.It would seem therefore, that bringing a bit of humor into more serious situations might be good for us.Places like a hu m o r l e ss office or a tense classroom could sometimes do with a good dose of laughter.I know that in my workplace;a bit of h il a r i t y(欢乐,欢闹)can go a long way towards making it a more enjoyable place to spend eight or so hours a day.Seeing t h e f unn y s i d e of things can certainly li f t o u r s p i r i t s and that in turn can make us feel better about what we're doing.Maybe we should get i n s p i r a t i o n(灵感)from Steve Carlisle,president of General Motors of Canada. When he walks around the firm's Ontario headquarters he shares his s e n s e o f hu m o r to bond(亲近,团结)with his staff. He says "It can help people feel more relaxed, more comfortable and thus be more effective at what they do." Humour can be used by teachers in the classroom too. It's a good way to b r e ak t h e i c e(打破沉默)with students and create a more relaxed atmosphere which is good for learning,as long as everyone doesn't spend all their time in h y s t e r i c s!(狂笑)But we have to be careful; not everyone laughs at the same things. While some of us may admire a work colleague or fellow student for their clever and well-told joke, others may consider them s a r c a s t i c,(讽刺的,挖苦的)o ff e n s i v e(讨厌的)or just an idiot!According to Professor Schweitzer, from the University of Philadelphia's Wharton School, a worker or boss who successfully uses humor is seen as both confident and c o m p e t e n t(有能力的),which in turn increases his or her status? He says "Being funny is taking a risk, and being risky shows confidence." His study 'Risky Business: When Humour Increases and Decreases Status' also found that someone who tells i n a pp r op r i a t e(不合适的)jokes is also seen as confident but they're also regarded as incompetent.So telling the right jokes in the office or classroom can spread some happiness but if you still think working and studying is n o l a u g h i n g m a tt e r(严肃的事情),take note of a study published in The Journal of Behavioral and Applied Management in 2006, that found for healthcare workers, emotional exhaustion was significantly lower among those who experienced greater levels of fun at work. And other research has discovered that teams who share more jokes gave more s u ppo r t i v e andc o n s t r u c t i v e statements to each other–and that's no joke!94.How does Steve Carlisle, president of General Motors of Canada, try to get along with his employees?95.According to Professor Schweitzer, from the University of Philadelphia's Wharton School, how doesa worker have to use humor if he or she is to appear confident and competent?96.True or false: A study found health workers got greater levels of emotional exhaustion when they had fun at work.97.Which word used in the article means ' respect and approve of someone or their behavior'?98.How competent is someone seen as when they tell inappropriate jokes?VII. Writing 20%99.Wr i t i n g a p a ss a g e w i t h a t l e a s t100 w o r d s o n t h e t op i c“T h e M o s t D i ff i c u l t M o m e n t i n M y L i f e”.生活中困难在所难免,每个人或多或少都经历过一些困难的时刻。

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Part II V ocabulary and GrammarI. Choose the best answer. 20%26. Be careful not to wake the baby.A. /keə’fl/B. /kiə’fl/C. /’keəfl/D. /’kiəfl/27. Which of the following underlined parts is different in pronunciation from others?A. She was standing o n one foot.B. I won’t leave u ntil you come back.C. She was unable to c o ntain her excitement.D. Who will pay the electricity bill?28. A little boy wrote “u” and “n” on the wall.A. a; anB.an; aC.an; anD. a; a29. I have lost my pen. I must buy today.A. itB. thisC. oneD. that30. Y ou’ve got so many books. Could you please lend me to read?A. anythingB. anyC. somethingD. some31. They’ve taken everything with .A. themB. themselvesC. theyD. their32. She had to borrow a new in order to attend the party.A. clothB. clothesC. clothingD. dress33. useful information board you have made!A. HowB. WhatC. How aD. What a34. I am not sure how long Oliver .A. has joined the armyB. has joined in the armyC. has served the armyD. has served in the army35. What is the chemical symbol water?A. aboutB. ofC. onD. for36. a father, she has a younger brother to support.A. BesideB. BesidesC. ExceptD. Except for37. I hate to admit it, I think I was wrong.A. andB. butC. orD. so38. He’s an engineer, he can deal with problems.A. electricity, electricalB. electrical, electricalC. electrical, electricD. electrical, electricity39. History repeat itself.A. needs notB. need notC. doesn’t needD. need not to40. What did you about water pollution at the meeting?A. talkB. sayC. speakD. tell41. In the past few years, great changes in Shanghai.A. there wereB. there have hadC. there had beenD. there have been42. Joyce suggested .A. them talk it over among themselvesB. them talked it over among themselvesC. they talk it over among themselvesD. they talked it over among themselves43. Where do you think T onny the jacket?A. did, buyB. did, boughtC. has, boughtD. /, bought44. Which sentence is correct?A. I wonder where you have gone.B. I wonder where they visited.C. I wonder when you have finished the task.D. I wonder what is the matter with you.45. -- John and I will celebrate our fortieth wedding anniversary next month.-- Oh, !A. cheer upB. well doneC. go aheadD. congratulationsII. Fill in the blanks with the proper forms of the words: 7%46. They have both behaved than before and I am very hurt. (bad)47. Y ou can reduce these long to simple charts or diagrams. (explain)48. In cold weather, everything seems to be frozen. (freeze)49. Our government is trying to take to prevent and control pollution. (measure)50. My father exercises because he doesn’t have enough time. (regular)51. They do not have the to apologize for their actions. (encourage)52. A friend is a living treasure, and if you have one, you have one of the gifts in life. (value)III. Fill in the blanks with the verbs in their proper forms: 7%53. Such negative thoughts and feelings make some people feel like up.(give)54. I didn’t know a thing about the verbs, for I my lesson. (not study)55. The miners alive when the tunnel collapsed. (bury)56. Look! Jerry and he belongs to a ski club. (ski)57. I hope you the secret of how to be happy. (find)58. I don’t think Renee saw us. She a watch for her father. (choose)59. Let us hold our hands and the environment. (not pollute)IV. Rewrite the sentences as required: 6%60. Daisy was told not to eat sweets any more.(反义疑问句)?61. The doctor took good care of the wounded.(改为被动句)The wounded good care of by the doctor.62. I don’t know if I will go with you tomorrow.(同义句转换)I don’t know go with you tomorrow.63. Life in our cities will be inconvenient without electricity.(划线提问)will life in our cities without electricity?64. Benny wanted to trick his sister.(同义句转换)Benny wanted to his sister.65. machine, makes, kinds, works, it, goods, the, of, that, all(连词成句)V. Complete the following passage with the words or phrases in the box. Each word or phrase can only be usedMore Than a Ride to SchoolThe National Education Association claims. “The school bus is a mirror of the community.” They further add that, unfortunately, what appears on the exterior does not always reflect the reality of a chosen community. They are right--- sometimes it reflects more! Just ask Liesl Denson. Riding the school bus has been more than a ride to school for Liesl. Bruce Hardy. school bus driver for Althouse BUS Company has been Liesl’s bus driver since kindergarten. Last year when Liesl’s family moved to Parkesburg, 66 her bus went by her new residence, she requested to ride the same bus.This year Liesl is a senior and will enjoy her last year riding the bus. She sa ys, “It’s been a great ride 67 ! My bus driver is so cool and has always been a good friend and a good listener. Sometimes when you’r e a child, adults do not think that what you have to say is important. Mr. Hardy always listens to what you have to say and makes you feel important.” Her friends Ashley Batista and Amanda W olfe agree 68what Liesl said. Bruce Hardy has been making Octorara students feel special since 1975. This year he will celebrate 40 years working for Althouse Bus Company. Larry Althouse, president of the company, acknowledges Bruce Hardy’s outstanding record, “Y ou do not come by employees like Bruce these days. He has never missed a day of work and has a perfect driving record. He was recognized in 2000 by the Pennsylvania School Bus Association for driving 350,000 accidentfree miles. Hardy’s reputation is made 69 evident through the relationships he has made with the students that ride his bus.”Althouse further adds, “Althouse Bus Company was established 70 years ago and has been providing quality transportation 70 . My grandfather started the business with one bus. Althouse Bus Company is delighted to have the opportunity to bring distinctive and safe service to our local school and community and looks forward to continuing to provide quality service for many more years to com e.”Three generations of business is not all the company has enjoyed. Thanks 71 drivers like Bruce Hardy, they have been building relationships through generations, Liesl’s mother Carol also enjoys fond memories of riding Bruce Hardy’s bus to the Octorara School District.Part III Reading and WritingA. Choose the best answer 5%The Exploding Lakes of CameroonWhat comes to mind when you think of a lake? Y ou probably imagine a pretty scene with blue water, birds, and fish. For the people in the northwestern Cameroon, however, the image is very different. For them, lakes may mean terrible disasters. In 1984, poisonous gases exploded out of Lake Monoun and came down into the nearby villages, killing thirty -- seven people. T wo years later, Lake Nyos erupted a cloud of gases rolled down the hills and into the valleys and killed1,700 people.Lake Nyos and Lake Monoun are crater (火山口) lakes. They were formed when water collected in the craters of old volcanoes. The volcanoes under Lake Nyos and Lake Monoun are not active anymore. However, poisonous gases from the center of the earth continue to flow up through cracks in the bottom of the lake. This is normal in a crater lake. In most crater lakes, these gases are released often because the water ‘t urns over’ regularly. That is, the water from the bottom of the lake rises and mixes with the water at the top, allowing the gases to escape slowly.However, in Lakes Nyos and Monoun, there is no regular turning over. No one knows the reason for this fact, but as a result, these lakes have more gases tapped at the bottom than other crater lakes. In fact, scientists who have studied LakesNyos and Monoun have found 16,000 times more gases. When a strong wind, cool weather, a storm, or a landslide (滑坡)causes the water to turn over suddenly, the gases escape in a violent explosion.In the past, no one knew when the gases might explode, so there was no way for the villagers to escape disaster. Now scientists from the United States, France, and Cameroon have found a way to reduce the gas pressure at the bottom of Lake Nyos. They stood a 672-foot plastic pipe in the middle of the lake, with one end of the pipe near the bottom and the other end in the air. Near the top of the pipe, the team put several holes that could be opened or closed by a computer. Now, when the gas pressure gets too high, the holes are opened and some of the gas-filled water shoots up through the pipe into the air like a fountain. With less pressure, a disastrous explosion is much less likely. However, the scientists are not sure that one pipe will be enough to prevent explosions. They hope to put in others soon and they plan to install a similar pipe and a computer system at Lake Monoun as well.T o protect people nearby until all of the pipes are in place, the scientists have installed early warning systems at both lakes. If the gas pressure rises to a dangerous level, computers will set off loud sirens (警报) and bright lights to warn thepeople in the villages. That way, they will have time to escape from the dangerous gases.72. What will happen when Lake Nyos and Lake Monoun explode?A. W ater will flow down the hills.B. Poisonous gases will be released suddenly.C. A strong wind will rise from the lakes.D. The volcanoes will come to life.73. Which of the following statements about Lake Nyos and Lake Monoun is true?A. They were formed in 1984B. They are at the top of two active volcanoes.C. They are not like most other crater lakesD. W ater in them turns over regularly.74. Lake Nyos and Lake Monoun explode because .A. the gases rise to the top and mix with airB. people from the villages turn over the waterC. scientists have put in a computer systemD. they have more gases trapped at the bottom than other crater lakes75. A team of scientists has .A. erected a pressure-releasing pipe in the lakeB. identified the gases at the bottom of the lakeC. built a beautiful fountain near the lakesD. removed all dangerous gases from the lakes76. What do we learn from the last paragraph?A. Scientists are planning to install pipes in all crater lakesB. Scientists still do not know how to prevent gas explosionsC. Explosion disasters could be avoided in the futureD. W arming systems have been set up in the villages nearby.B. Choose the words or expressions and complete the passage. 8%It was just getting dark; there was a touch of fog and I was on a lonely stretch of road. But I was going along cheerfully, thinking about the dinner I would eat when I got to Salisbury.I was going along quietly at about thirty-five miles an hour when suddenly I heard a scream, a woman’s scream –“Help!” I looked round, but the only 77 _ of life was a large, black, rather suspicious-looking(看起来可疑的) car just turninga bend in the road about a hundred yards away. That was 78 the cry had come from: I 79 speed and went after it. I thought the driver saw what I was doing, for he did the same and began to draw away from me. As I drew near,the girl’s voice came again, a lovely voice but trembling(发抖)with fear.“Let me go, you fool; you’r e hurting me. Oh! O h!”I felt my blood 80 _. The fog was coming down thicker now, the countryside was lonelier. The man in the car had no 81 noticed this. Again, came a cry.“Drop the knife, fool. Oh!” Then a cry and a groan.If I was to save her, it was now or 82 _. Perhaps even now I was too late. But if I couldn’t save the girl, I would 83_ try to bring the murderer to the police station. The car was only a couple of yards away now. I drove the bike right across its path, and its brakes screamed as the driver tried to pull it over and crashed into the ditch (沟渠) on the side of the road. The door of the car was pushed open angrily and a dark, evil-looking fellow stepped out, mad with anger.“Foo l!” he shouted _84_ he came towards me with his fist raised to hit me. But I was quicker than he. I put all I knew into a blow that would have knocked out Joe Louis. It caught him right on the ground without a sound. I rushed to the car, pulled the door and peered inside. There was no girl there. Suddenly from the back of the car came a voice.“Y ou have been listening to a radio play. Murder in Hollywood, with Mae Garbo and Clark T aylor. The news will follow immediately. “77. A. person B. sign C. figure D. form7 8A. how B. when C. what D. where7 9A. put aside B. put up C. put down D. puton8 0A. boil B. run C. come D. freeze8 1A. sign B. effort C. doubt D.troubles8 2A. late B. then C. ever D. never8 3A. at most B. at least C. at last D. atfirst8 4A. before B. after C as D. whileC. Read the passage and fill in the blanks with proper words 6%A Chimps(黑猩猩) will cooperate in certain ways, like gathering in war parties to protect their territory. But beyond the minimum requirements as social beings, they have little instinct (本能) to help one a 85 . Chimps in the wild seek food for themselves. Even chimp mothers regularly decline to share food with their children, who are able from a young age to gather their own food.In the laboratory, chimps don’t naturally share food either. If a chimp is put in a cage where he can pull in one plate of food for himself or, with no great effort, a plate that also provides food for a neighbor to the next cage, he will pull at random---he just does n’t care whether his neighbor gets fed or not. Chimps are truly selfish.Human children, on the other hand are extremely cooperative. From the earliest ages, they desire to help others, to share information and to participate in a 86 common goals. The psychologist Michael T omasello has studied this cooperativeness in a series of experiments with very young children. He finds that if babies aged 18 months see a worried adult with hands f 87 trying to open a door, almost all will immediately try to help.There are several reasons to believe that the urges to help, inform and share are not taught, but n _88_ possessed in young children. One is that these instincts appear at a very young age before most parents have started to train children to behave socially. Another is that the helping behaviors are not improved if the children are rewarded. A third reason isthat social intelligence d 89in children before their general cognitive(认知的)skills, at least when compared with chimps. In tests conducted by T omasello, the children did no better than the chimps on the physical world tests, but were considerably better at understanding the social world.The core of what children’s minds have and chimps’ don’t is what T omasello calls shared intentionality. Part of this ability is that they can infer what others know or are thinking. But b _90_ that, even very young children want to be part of a shared purpose. They actively seek to be part of a “we”, a g roup that intends to work toward a shared goal.D. Read the following passage and answer the questions 5%Being an astronaut sounds cool, doesn’t it? In space, they can do some pretty amazing things, like floating in zero gravity.However, there are also plenty of things that astronauts can’t do because of their weightless environment, and that’s very sad. What’s worse, they can’t even let their sadness show---because it’s impossible to cry in zero gravity.Of course, astronauts can still have tears. But crying is much more difficult in space. Without gravity, tears don’t flow downward out of the eyes like they do on the earth. This means that when you cry in space, your tears have nowhere to go -- they just stick to your eyes.In May 2011, astronaut Andrew Feustel experienced this during one of his spacewalks. “T ear s,” he said, “don’t fall off your eyes. They just stay there. “Be sides making your vision unclear, this can also cause physical pain. Back on the earth, tears are supposed to bring comfort to the eyes. But that’s not the same in space. The space environment dries out astronaut s’ eyes, and when tears suddenly wet the eyes, it can cause pain rather than comfort. “My right eye is painful like cr azy” F eustel told his teammate during the walk.Since gravity doesn’t work in space astronauts need some extra help to get rid of the tears.Feustel chose to rub his eyes against his helmet (头盔) to wipe the tears away. Another choice is to just wait -- “W hen the tears get big enough, they simply break free of the eye and float around, astronaut Ron Parise said.There are lots of small things -- things like crying that we are so used to on the earth. W e usually take them for granted, until they become a problem in a completely different environment, like space. There, astronauts can’t talk to each other directly. They can’t eat or drink in normal ways; They can’t even burp (打嗝) because there is no gravity to hold the food down in their stomachs. If they do burp, they just end up throwing up (呕吐) everything in their stomachs, according to the UK National Space Center.Thus perhaps it’s only space explorers who can honestly sa y: “Gravity, you’r e the best.”91. Crying isn’t more difficult in space than on the earth, is it?92. Who experienced that the tears in space caused pain rather than comfort?93. How do astronauts get rid of the tears in space?94. Why can’t astronauts burp in space?95. In the last paragraph, the writer says: perhaps it’s only space explorers who can honestly sa y: “Gravity, you’r e thebest. “Do you agree with the writer? Why or why not?E. Writing 10%Write a passage of at least 60 words on the topic. “The fun of learning _(English/painting/to play the piano/to play basketball..).Necessary points1. What’s your experience of learning _?2. Why do you think learning is fun?(注意:短文中不得出现考生的姓名、校名及其他相关信息,否则不予评分.)26-30 CAACD 31-35 ADDDD 36-40 BBBBB 41-45 DCDDD46. worse 47. explanations 48. freezing 49. measures 50. irregularly 51. courage 52. most valuable53. giving 54. hadn’t studied 55. were buried 56. is skiing 57. will find 58. was choosing 59. not pollute60. wasn’t she 61. were taken 62. whether to 63. What be like 64. play a trick on65. It works that the machine makes all kinds of goods.66-71: HFDGEA 72-76:BCAAC 77-81 BDDAC 82-84 DBC85.another 86.achieving 87.full 88.naturally 89.develops 90.besides91.No,it isn’t92. Astronaut Andrew Feustel.93. They rubbed their eyes against their helmet to wipe the tears away or wait until the tears get big enough to simply break free of the eyes and floated around.94. Because there is no gravity to hold the food down their stomachs.95. Y es, I do. Because with gravity we can do many things in comfort rather than in pain such as cry, burp and so so.。

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