长宁中学校高2013级2014年下期第一月考试题

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2014年长宁区中考一模(即期末)数学试题(含答案)

2014年长宁区中考一模(即期末)数学试题(含答案)

长宁区九年级数学学科期末练习卷(2014年1月)(考试时间:100分钟,满分:150分)一、 选择题(本大题共6题,每题4分,满分24分)【下列各题的四个选项中,有且只有一个选项是正确的,选择正确项的代号并填涂在答题纸的相应位置上.】1.下列说法中,结论错误的是( ▲ )A .直径相等的两个圆是等圆;B .长度相等的两条弧是等弧;C .圆中最长的弦是直径;D .一条弦把圆分成两条弧,这两条弧可能是等弧. 2.已知非零向量,,a b c ,下列条件中,不能..判定//a b 的是( ▲ ) A .a b =; B . a b =-; C .//,//a c b c ; D .2,4a c b c ==. 3.抛物线2(1)3y x =-++的顶点坐标是( ▲ )A .(1,3)--;B .(1,3)-;C .(1,3)-;D .(1,3).4.抛物线241y x x =++可以通过平移得到2y x =,则下列平移过程正确的是( ▲ )A .先向左平移2个单位,再向上平移3个单位;B .先向左平移2个单位,再向下平移3个单位;C .先向右平移2个单位,再向下平移3个单位;D .先向右平移2个单位,再向上平移3个单位.5.在△ABC 中,∠ACB = 90°,CD ⊥AB 于D ,下列各组边的比不能..表示sin B 的( ▲ ) A .AC AB ; B .DC AC ; C .DC BC ; D .ADAC. 6.如图,P 是平行四边形ABCD 的对称中心,以P 为圆心作圆,过P 的任 意直线与圆相交于点M 、N .则线段BM 、DN 的大小关系是( ▲ ) A .BM > DN ; B .BM < DN ; C .BM = DN ; D .无法确定.二、填空题(本大题共12题,每题4分,满分48分)7.已知两个相似三角形的面积比是 4 : 1,则这两个三角形的周长比是 ▲ .8.如图,直线////a b c ,直线m n 、与a b c 、、分别交于点A 、C 、E 、B 、D 、F ,已知AC =4,CE = 6,BD = 3,则BF 等于 ▲ .9.将二次函数224y x x =-配方成2()y a x m k =++的形式,配方后的解析式为 ▲ . 10.如图,望大伯屋后有一块长12米,宽8米的矩形空地ABCD ,他在以较长边BC 为直径的半圆形内中菜,他家养的羊平时栓在A 处的一棵树上,为了不让羊吃到菜,栓羊的绳长应小于 ▲ .11.已知抛物线24(2)y mx x m m =++-经过坐标原点,则实数m 的值是 ▲ .12.已知抛物线22y x bx c =++经过点A (0 , 3)、B (4 , 3),则此抛物线的对称轴是 ▲ . 13.已知⊙A 的半径为5,圆心A (3 , 4),坐标原点O 与⊙A 的位置关系是 ▲ .14.印刷厂10月份印刷一畅销小说书5万册,因购买此书人数激增,印刷厂需加印,若设印书量每月的增长率为x ,12月印书量y 万册,写出y 关于x 的函数解析式 ▲ .15.在Rt △ABC 中,∠C =90°,中线AF 和中线BE 交于点G ,若AB = 3,则CG = ▲ . 16.某一山坡,坡长200米,山坡的高度100米,则此山坡的坡度是 ▲ .17.已知点123(0,)(1,)(3,)A y B y C y 、、在抛物线221(0)y ax ax a =-+<上,则123y y y 、、的大小关系是 ▲ .18.如图,△ABC 是面积为3的等边三角形,△ADE ∽△ABC ,AB = 2AD ,∠BAD = 45°,AC 与DE 相交于点F ,则△AEF 的面积是 ▲ . 三、解答题(本大题共7题,满分78分) 19.(本题满分10分)计算:2013(tan 45)cos60|cot 301|-︒-︒+︒-.20.(本题满分10分)如图,在梯形ABCD 中,AD // BC ,AD = 2,BC = 3,EF 是梯形的中位线,EF 与BD 交于点M .设A D a =,试用a 表示BC 与FM21.(本题满分10分)已知⊙O 的半径为12cm ,弦122AB cm =. (1)求圆心O 到弦AB 的距离;(2)若弦AB 恰好是△OCD 的中位线,以CD 中点E 为圆心,R 为半径作⊙E ,当⊙O 和⊙E 相切时,求R 的值.为了开发利用海洋资源,需要测量某岛屿两端A 、B 的距离.如图,勘测飞机在距海平面垂直高度为100米的点C 处测得点A 的俯角为60°,然后沿着平行于AB 的方向飞行了500米至D 处,在D 处测得点B 的俯角为45°,求岛屿两端A 、B 的距离.(结果精确到0.1米) 说明:①A 、B 、C 、D 在与海平面垂直的同一平面上;②参考数据:3 1.732,2 1.414≈≈.23.(本题满分12分,第(1)小题满分5分,第(2)小题满分7分) 如图,△ABC 中,AC = BC ,F 为底边AB 上一点,(,0)BF mm n AF n=>,D 是CF 中点,联结AD 并延长交BC 于E .(1)求BEEC的值;(2)若BE = 2EC ,求证:CF ⊥AB .如图,在直角坐标平面上,点A、B在x轴上(A点在B点左侧),点C在y轴正半轴上,若A (– 1 , 0),OB = 3OA,且tan∠CAO = 2.(1)求点B、C的坐标(2)求经过点A、B、C三点的抛物线解析式;(3)P是(2)中所求抛物线的顶点,设Q是此抛物线上一点,若△ABQ与△ABP的面积相等,求P点的坐标.在△ABC中,∠BAC = 90°,AB < AC,M是BC边的中点,MN⊥BC交AC于点N.动点P从点B出发,沿射线BA 以每秒3个长度单位运动,联结MP,同时Q从点N出发,沿射线NC以一定的速度运动,且始终保持MQ⊥MP,设运动时间为x秒(x > 0).(1)求证:△BMP∽△NMQ;AB ,设△APQ的面积为y,求y与x的函数关系式;(2)若∠B = 60°,43(3)判断BP、PQ、CQ之间的数量关系,并说明理由.FEDCBAO2013学年第一学期初三数学质量检测试卷 参考答案一、单项选择题:(本大题共6题,每题4分,满分24分) 1、B; 2、A; 3、C; 4、D; 5、B; 6、C. 二、填空题:(本大题共12题,每题4分,满分48分)7、2:1; 8、215; 9、()2122--=x y ; 10、4米;11、2;12、直线x =2;13、在圆上; 14、()215x y +=;15、1;16、1:3; 17、213y y y << 18、433- 三、解答题:(本大题共7题,满分78分)19.(本题满分10分)解:原式=()13211-2013-+- (6分)=1-3211-+- (2分)=25-3 (2分) 20.(本题满分10分)解:∵AD =2,BC =3, ∴ AD BC 23= ∵AD//BC ∴a AD BC 2323== (4分)∵EF 是梯形的中位线 ∴EF//BC ∴FCDFBM DM =∵F 是DC 中点,即DF=FC ∴DM=MB ∴FM 是△DBC 的中位线 ∴a BC FM 4321-=-= (6分) 21.(本题满分10分)解:(1)过点O 作AB 的垂线交AB 于F ,交CD 于E . (1分)∵O 是圆心 且OF ⊥AB ∴AF =FB =AB 21(1分)∵AB =212 ∴AF =26Rt △ABC 中 OA =12,222OA OF AF =+ 2221226=+OF )(∴OF =26 (2分)∴圆心O 到弦AB 的距离26 (1分) (2) ∵AB 是△OCD 的中位线∴AB//CD ,且21=CD AB ∴∠AFO=∠CEO∵OE ⊥AB 即∠AFO =90° ∴∠CEO =90°即OE ⊥CD ∵AB =212,OA=OB =12 ∴222OB OA AB += ∴∠AOB =90° ∴ODOBOC OA =∵OA=OB ∴OC=OD∴△OCD 是等腰直角三角形 ∵OE ⊥CD ∴E 是CD 中点∵AB//CD,且21=CD AB ∴21==CD AB OE OF ∵OF =26∴OE =212 (3分)外切 OE =212=OA +R =12+R R =212-12 (1分) 内切 OE =212=R-OA =R -12 R =212+12 (1分) 22.(本题满分10分)解:作AE ⊥CD 于E ,作BF ⊥CD 于F . (1分)据题意得 CD//AB,AE=BF =100米,CD =500米,∠ACD =60°,∠BDF =45°. Rt △CAE 中,cot ∠ACD =cot60°=AECECE =⨯33100≈57.73 Rt △BDF 中,tan ∠BDF =tan45°=DFBFDF=BF =100 (4分) EF=CD-CE+DF =500-57.73+100=542.27 ∵AE ⊥CD ∴∠AEC =90°同理∠BFD =90° ∴∠BFD=∠AEC ∴AE//BF 又∵EF//AB∴四边形ABFE 是平行四边形 ∴EF=AB∴AB =542.27≈542.3 (4分)GFD ECB A∴岛屿两端A 、B 的距离约是542.3米. (1分) 23.(本题满分12分)(1)解:过点B 做CF 的平行线与AE 延长线交于点G. (1分) ∵CF ∥BG ∴BGFDAB AF =∵n m AF BF = ∴n m n AB AF += ∴n m n BG DF += (3分) ∵D 是CF 中点 ∴DF=DC ∴nm n BG DC += ∵CF ∥BG ∴BEEC BG DC =∴nnm +=EC BE (3分) (2)∵BE =2EC ∴nnm +=2 则m=n (1分)∴1n ==m AF BF 即BF=AF (2分) 又∵AC=BC ∴CF ⊥AB (2分)24.(本题满分12分)解:(1)据题意OA =1,Rt △ACO 中,tan ∠CAO=OAOC=2 (1分) ∴OC =2 ∴C (0,2) (1分)OB =3OA=3 ∴B (3,0) (1分)(2)设()0)3(1≠-+=a x x a y )( (1分) C (0,2)代入得2=-3a ∴32-a = (1分) ∴23432)3(1322++=-+=x x -x x -y )( (1分)(3)设Q (x,y )∵234322++=x x -y ∴P (1,38) (1分) AB=OA+OB =4 3163842121=⨯⨯=⋅=∆p ABP y AB S∵△ABQ 与△ABP 的面积相等 ∴31621=⋅=∆y AB S ABQ ∴y=38± (2分)当y=38时 23432382++=x x - 解得121==x xCABM PQN图(3)图(2)NQP M CBA∴Q (1,38) (1分) 当y=38-时 -23432382++=x x - 解得22121±=,x∴Q )38221-±,( (2分)25.(本题满分14分)(1)∵MN ⊥BC ∴∠NMB =90°=∠PMN+∠BMP∵MQ ⊥MP ∴∠PMQ =90°=∠PMN+∠NMQ ∴∠BMP=∠NMQ如图①和②∵∠BAC =90°∴∠B+∠C =90° ∵∠NMB =90°∴∠MNC+∠C =90° ∴∠B=∠MNC在△BMP 和△NMQ 中∠BMP=∠NMQ 且∠B=∠MNC ∴△BMP ∽△NMQ ;(3分)如图③ ∠BMP =∠NMB +∠PMN =90°+∠PMN∠NMQ=∠PMQ +∠PMN =90°+∠PMN ∴∠BMP=∠NMQ 又∵∠B=∠MNC ∴△BMP ∽△NMQ ;(1分) (2)Rt △ABC 中 ∠B =60°AB =34tan ∠B =3=ABAC, ∴AC =12∠C =30°BC =2AB =38 ∵M 是BC 中点 ∴MC=BM =34∵MN ⊥BC ∴∠NMC =90°Rt △MNC 中 ∠C =90°-∠B =30° MN=4 ∴NC =2MN =8 设BP =x 3, BM =34 由(1)知△BMP ∽△NMQ ∴MNBMNQ BP = ∴NQ=x AQ=AN+NQ=(AC-CN )+NQ =4+x (3分) 如图① AP =x 334-,()3402338433421212≤≤-=+=⋅==∆x x )x (x -AQ AP S y APQ )( (2分) 第25题 图①NQP MCBA- 11 - 如图②③ AP =343-x()343823434321212>-=+=⋅==∆x x x -x AQ AP S y APQ ))(( (2分) (3)延长PM 至D ,使得DM=PM.联结CD,QD易证△BPM ≌△MDC证出∠QCD=90°,QD=QP,CD=BP在Rt △CDQ 中 222C DQ CD Q =+ 即:222PQ CQ BP =+ (3分)。

2013-2014学年高一下学期第一次月考英语试题及答案

2013-2014学年高一下学期第一次月考英语试题及答案

第一部分:听力(共20题,30分)第一节1. How does Jenny probably feel now?A. Excited.B. Puzzled.C. Sad2. What happened to the man’s bike?A. It broke down.B. The key was missing.C. It was lost.3. Who wants to have a pear?A. The man.B. The woman.C. The women’s brother.4. What has the man been doing?A. Listening to the radio.B. Wacthing TV.C. Doing his homework.5. What does the man probably think of the picnic?A. Terrible.B. Just so-soC. Great.第二节6. What’s Mr Smith doing now?A. Talking on the phone.B. Having a meeting.C. Returning from a meeting.7. What will John do then?A. Go to a meeting .B. Call Mr Smith again.C. Visit Mr Smith this afternoon.8. How does the room look now?A. DirtyB. DarkC. Tidy9. Why did the man come to the man’s house?A. To borrow a book.B. To ask about a party.C. To ask for Mary’s phone number.10. What are the two speakers mainly talking about?A. Part-time jobs they want to do.B. Plans for their summer holiday.C. Lifestyles in different countries.11. What will the man do?A. Go to New YorkB. Go to work in Shanghai.C. Look for a part-time job.12. What do the woman’s like doing?A. Reading magazines.B. Traveling around the US by car.C. Visiting different countries in the world.13. What’s the relationship between the woman and Nana?A. ClassmatesB. RoommatesC. Best friends14. How old is Nana now?A. 5B. 7C. 12.15. Where does Nana come from?A. ChinaB. Korea.C. America.16. What do we know about Nana’s parents?A. They grew up in America.B. They were busy with their work.C. They didn’t know much about Chinese traditions17. When did the speaker’s grandma start writing?A. In the 1930s.B. In the 1940sC. In the 1950s18. What do we know about the speaker’s grandma’s first collection of short stories?A. It came out in the early 1960s.B. It was called Lives of Girls and Women.C. It won her a very important literary prize.19. How many collections of short stories has the speaker’s grandma published in all?A. 4.B. 10 .C. 14.20. What did the speaker’s grandma do in 2013?A. She published her latest book.B. She started writing in English.C. She won an important prize in literature.第二部分:阅读第一节(共15题,30分)AAs for Jack, he stayed aboard and lived the life of a true pirate dog to the end of his days.21.According to the first two paragraphs, which of the following is TRUE?A. Bragwynn killed many people when he was young.B. Bragwynn had sailed at sea for many years.C. Bragwynn rowed about in his boat with a young man named Jack.D. Bragwynn did not notice the ship just ahead of him.22.Why did the captain on the ship say “I’ll give up” to Bragwynn?A. Because he was frightened by Bragwynn’s words.B. Because he thought Bragwynn a better captain.C. Because he was really ready to serve Bragwynn.D.Because he had an idea to deal with Bragwynn.23. When Bragwynn stepped through the door , he thought he was going______.A. into the kitchenB. back onto his own boatC. into the bathroomD. to gain the captain’s position24. Which of the following words best describe Bragwynn?A. Mean and brave.B. Crazy and foolish.C. Stubborn and friendly.D. Clever and cruel.BMei Lun and Mei Huan have been the first giant twin pandas born in the US since 1987. The names of these twin male giant panda cubs(幼崽) were announced at Atlanta Zoo last year. Lun Lun, a 15-year-old giant panda, gave birth to the cubs on July 15, 2013. Zoo officials followed Chinese custom and named the brothers after waiting 100 days. Until then, they were simply known as “Cub A” and “ Cub B”.Mei Lun and Mei H uan are the first twin panda cubs to survive in the Unite States. “We’re delighted to finally be able to place two youngsters with names. They have not only made a mark on the history of Atlanta Zoo, but also have made history in the US,” Raymond B. King , the zoo’s president and CEO, said in a statement.Atlanta Zoo teamed up with Good Morning America that month to put the pandas’ names to a public vote. China’s Chengdu Research Base of Giant Panda Breeding provided the choi ces of names. In just 13 days, 51,000 votes poured in on the show’s website.Under a deal between China and the US, giant pandas originally from China are only lent to foreign zoos for scientific study for several years. Zookeepers at Atlanta Zoo are giving regular updates on the twins’ progress in an online blog. Mei Lun and Mei Huan are the fourth and fifth offspring(子女) of Lun Lun and a male giant panda named Yang Yang.The pandas made their first public appearanc e in a US exhibit last fall. For the three months before their appearance, the online world had watched the twins grow strong and healthy. “We share this joy with our colleagues(同事) in China and with the cub’s fans around the world,” King said.25. The underlined words “ that month” probably refer toA. JulyB. SeptemberC. OctoberD. December26. How did the twins get their names?A. Good morning America named them.B. Zoo Atlanta gave them the names.C. China provided their names for votes.D. The US decided their names.27. What can be inferred from the passage?A. Yang Yang belongs to America.B. The two cubs are not in good health.C. Yang Yang is the father of the twins.D. The cub’s fans haven’t watched the twins in the zoo.28. What’s the main idea of the passage?A. The twin panda cubs were born in the US.B. The twin pandas grew strong and healthy.C. The names of the twin pandas w ere announced.D. The names of the twin pandas were given by the public.CBuffet is the son of the best investor(投资者)Warren Buffet, and he's the CEO of a philanthropic foundation(慈善基金会). But he’s also a lifelong farmer. He is familiar with the saying that each farmer can expect to have 40 opportunities to improve their harvest. And it’s not just farmers who know there’s a clock running on their efforts. “ We all need to recognize that we only have a fixed amount of time to affect change,” said Howard G. Buffett(HGB)HGB wants to invest more than $3 billion, in an effort to end global hunger and poverty for the world’s nearly one billion poor people by 2045. He’s decided to focus much of his effort on farming in the developing world. He believes that the best way to deal with poverty is to change the lives of farmers in the poorest nations on the planet. “It’s a pretty well proven fact that nothing works better at bringing people out of poverty than investment in rural areas,” said HGB.Healthy soils are a most important part of productive farmers, but 1.5 billion people — a fifth of the global population — live on poor land. ”You have to fix the soil,” he said. HGB also has the idea that farmers who own their own land will raise crops with an eye to the long-term health of the soil.He would like to see that balanced with a foreign-aid plan. HGB notes that too often, experts want to make agriculture in developing nations look like farming in rich countries.” It’s not going to happen like that,” said HGB. “You need to consider local differences, local culture.” Many more ideas of HGB can be found in his new book, Forty Chances: Finding Hope in a Hungry World.29. From the second paragraph, we can learn that HGB’s main purpose is_______.A. to invest lots of money in farmingB. to end hunger and povertyC. to change farming in the worldD. to help the poorest nations in the world.30. What’s the population of the whole world?A. 1.5 billionB. One fifth billionC. 6 billionD. 7.5 billion31. What can be inferred from the last paragraph?A. The farming methods in rich countries suit developing countries.B. HGB thinks agriculture of the west is not good at all.C. All the farming methods don’t suit developing countries.D. HGB gains his ideas from the book Forty Chances.32. What can be the best title for the passage?A. HGB invests to end hungerB. A great farmer, HGB.C. HGB, one son of Warren BuffetD. HGB invests in the developing countries.DClimate change will increase U.S wildfires, and the smoky air will cause terrible problems in areas far beyond those burned, reports an environmental group Thursday.Two-thirds of Americans, or nearly 212 million, lived in states suffering from wildfire smoke three years ago, according to the report by the Natural Resources Defense Council (NRDC). These areas, which had smoke for at least a week, were nearly 50 times greater than those burned directly by fire.“ It affects a much wider area of the United States than people have realized, ” says author Kim Knowlton, a Columbia University health professor, adding the smoke can move up to hundreds of miles. She says the smoke contains air pollution and can cause several kinds of disease.Texas was hit hardest in 2011, when smoke stayed for at least a week in areas that are home to 25 million people, according to NRDC’s report. Illinois, which recorded no wildfires within its borders( 边界) ,ranked (排名) second with nearly 12 million people affected by smoke that moved in from elsewhere. The other eight states with the most people exposed (接触) to smoky air were, in descending ( 下降的) order: Florida, Missouri, Georgia, Louisiana, Michigan, Alabama, Oklahoma and Iowa.Nearly two dozen states had no wildfires within their borders in 2011, but eight of them still had at least one week of smoky air: Illinois, Missouri, Iowa, Kansas, Nebraska, Indiana, Wisconsin and Ohio.Only 18 states and the District of Columbia had no people exposed to at leas t a week of smoke that year, although five of them----Alaska, California, Hawaii, Nevada and Utah---had a large area burned by wildfires.The problem will only get worse, Knowlton say. Scientific research shows climate is causing higher temperatures and health problems.33. We can learn from the first two paragraphs that .A. most Americans suffered from climate change.B. the stat es burned by wildfires had more serious problems.C. most Americans suffered from wildfire smoke in 2011.D. Every state had wildfire smoke for at least a week.34. Which of the following states had wildfires within its borders?A. TexasB. Kansas.C. OhioD. California.35. What would be the best title for the passage?A. Climate change causes more wildfires.B. More wildfires cause climate change.C. Wildfire smoke becomes a serious health problem.D. Air pollution becomes a terrible problem.第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。

2013—2014学年度第二学期八年级下期第一次月考试卷

2013—2014学年度第二学期八年级下期第一次月考试卷

2013—2014学年度第二学期 八年级生物下册第一次月考试卷(满分100分,考试时间:50分钟)题号 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 答案 题号 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 答案 题号 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 答案 题号 46 47 48 49 50答案一、本试卷共50道选择题。

每小题2分,共100分。

1、根据植物生殖有关知识,要想让同一橘子树上结出不同的口味的橘子,你认为最好采用的方法是 ( ) A 、组织培养 B 、嫁接 C 、扦插 D 、播种2、下列植物的生殖方式中属于无性生殖的一组是 ( )①水螅的出芽生殖 ;②豌豆的种子繁殖;③月季的扦插;④鱼的受精卵繁殖; ⑤细菌的分裂生殖;⑥鸡的受精卵繁殖。

A 、①②③B 、④⑤⑥C 、①③⑤D 、②④⑥3、小麦和青蛙个体发育的起点都是 ( ) A 、卵细胞的成熟 B 、精子的成熟 C 、受精卵 D 、种子或刚孵出的小蝌蚪4、 将一黄色玫瑰的枝条做接穗,红色的玫瑰做砧木进行嫁接,嫁接上去的枝条上开的花是 ( ) A 、只有红色 B 、只有黄色 C 、橙色 D 、有黄色又有红色5、植物园引进了一种稀有花卉,技术人员想在短时间内将其大量繁殖,比较理想的方法是 ( ) A 、种子繁殖 B 、组织培养 C 、扦插 D 、压条6、下列动物的发育过程中是属于变态发育方式是一组是 ( ) ①蝗虫;②鳄鱼;③麻雀;④蜜蜂;⑤蟾蜍;⑥鲸A 、①④⑤B 、①②④C 、②⑤⑥D 、①②③④⑤⑥7、蝗虫与家蚕相比,蝗虫不具有的时期是 ( ) A 、受精卵 B 、幼虫 C 、蛹 D 、成虫8、嫁接成活的关键是:接穗和砧木必须紧密地结合在一起的部位是( ) A 、木质部 B 、韧皮部 C 、髓 D 、形成层9、青蛙是一种常见的两栖动物,下列相关表述正确的是 ( ) A 、雄蛙生殖季节高声鸣叫,这是一种繁殖行为,也是一种学习行为。

高中英语真题-2013-2014学年第二学期第一次月考

高中英语真题-2013-2014学年第二学期第一次月考

高中英语真题:2013-2014学年第二学期第一次月考考试用时:120分钟满分分值:150分第Ⅰ卷(选择题,满分115分)第一部分听力(共两节,满分30分) 第一节 (共5小题;每小题1.5分,满分7.5分)How much should the man pay if he rents the room for two wee ks?A. $ 150.B. $ 300.C. $400.Where does this conversation take place?A. In a clothing shop.B. In a restaurant.C. In an office.Why does thewoman dislike the restaurant?A. It is noisy.B. It is crowded.C. It is expensive.What is the relationship between the two speakers?A. Neighbors.B. Friends.C. Workmates.What does the woman suggest the man do?A. Get a part-time job.B. Keep it a secret.C. Tell his parents about it.第二节(共15题;每小题1.5分,共22.5分)听第6段材料,回答第6、7、8题。

What ball games does the man like watching on TV?A. Football.B. Volleyball.C. Basketball.What does the man think of the team he supports?A. Good.B. Just so-so.C. Disappointing.How many more games does the man’s team have this season ?A. 3.B. 4.C. 5.听第7段材料,回答第9、10、11题。

2014八年级英语

2014八年级英语

12013—2014学年度第二学期第一次月考试题 八年级英语A 卷(100分) Ⅰ听力 (共15小题;每小题1分,满分15分)A) 听对话及问题,选择正确的图片。

每段对话听两遍。

(4分)B . 听对话及问题,选择正确答案。

每段对话听两遍。

(6分) ( )5. Whose school has the most teachers? A. Peter's B. Jack's C. Lily's ( )6. Why is Betty her best friend?A. Generous.B. Helpful.C. Both A and B. ( )7. Who has more weeks off in the summertime?A. John.B. Daniel.C. Kate. ( )8. How does the boy go to school when it rains?A. On foot.B. By bike.C. By car. ( )9. What’s Peter’s favourite subject?A. GeographyB. Computer StudiesC. English ( )10. How many Grade 8 classes are there in Linda’s school?A. 8B. 6C. 3C) 听对话和短文回答问题。

你将听到两段对话和一篇短文,各听两遍。

听第一段对话,回答第11-12小题。

( ) 11. How many people are going to Hainan?A. Two.B. Three.C. Four. ( ) 12. How are they going to Hainan? A. By train. B. By plane. C. By ship.( ( ) 14. A. Swim well B. Speak English well C. Get on well with people ( ) 15. A. A newspaper reporter B. An English teacher C. A computer programmer笔试部分(85分)Ⅱ词汇考查(10分)A)根据句意和首字母(或汉语)提示完成单词(5分)1.Maybe you have a stomachache,you should lie down and ______.2.I fell s_____.Maybe I have a bad cold.3.I have two_______(小刀).My father bought them for me last week.4.It________(意思是)we must leave now.5. Now more and more young people want to be v_____________and it can make them happy. B) 选择与句中划线部分意思相同或相近的词或短语(5分)( )1. Yesterday I used up all the salt to cook noodles.I need to buy some now. A. eat up B.make ran out of C. ran out of D. ran out ( )2.He is similar to his father.A.look afterB. takes afterC.take care ofD. be different from ( )3.Pleade give out the papers to other?A. hand outB.look outC. take outD. find out ( )4. I called my sister up last night.A.rang upB.ring upC. take onD. able to ( )5. The young woman gave away a lot of money to the school.A.gave upB.gave without paymentC. gave offD. handed out Ⅲ.语法与情景会话。

上海市长宁区2014届高三数学一模试卷(理科_含答案)

上海市长宁区2014届高三数学一模试卷(理科_含答案)

上海市长宁区2013—2014第一学期高三教学质量检测数学试卷考生注意:本试卷共有23道试题,满分150分.考试时间120分钟.解答必须写在答题纸上的规定区域,写在试卷或草稿纸上的答案一律不予评分.一.填空题(本大题满分56分)本大题共有14题,考生应在答题纸的相应编号的空格内填写结果,每题填对得4分,否则一律得零分.1、设()x f 是R 上的奇函数,当0≤x 时,()x x x f -=22,则()=1f2、已知复数24z i =+,21(1)z w z +=-,则w = . 3、已知函数5()2x f x x m -=+的图像关于直线y x =对称,则m =4、已知命题1|211:|≤+-x p ,命题)0(012:22><-+-m m x x q ,若p 是q 的充分不必要条件,则实数m 的范围是 . 5、数列{}n a 满足*,5221...2121221N n n a a a n n ∈+=+++,则=n a . 6、一平面截一球得到直径是6cm 的圆面,球心到这个平面的距离是4cm ,则该球的体积是 . 7、设ω>0,若函数f (x )=2sin ωx 在[-4,3ππ]上单调递增,则ω的取值范围是_________.8、不透明的袋子中装有除颜色不同其它完全一样的黑、白小球共10只,从中任意摸出一只小球得到是黑球的概率为25.则从中任意摸出2只小球,至少得到一只白球的概率为 .9、在△ABC 中,内角A ,B ,C 的对边分别是a ,b ,c .若bc b a 322=-,B C sin 32sin = ,则角A =._________10、已知总体的各个体的值由小到大依次为2,3,3,7,a ,b ,12,13.7,18.3,20,且总体的中位数为10.5,若要使该总体的方差最小,则._______=ab 11、已知数列{}{}n n b a ,都是公差为1的等差数列,其首项分别为11,b a ,且,511=+b a,,11N b a ∈设),(N n a c n b n ∈=则数列{}n c 的前10项和等于______.12、函数a y xx 421++=在]1,(-∞∈x 上0>y 恒成立,则a 的取值范围是.__________.13、已知52x ⎛ ⎝的展开式中的常数项为T ,()f x 是以T 为周期的偶函数,且当[0,1]x ∈时,()f x x =,若在区间[1,3]-内,函数()()g x f x kx k =--有4个零点,则实数k 的取值范围是 .14、定义:{}123min ,,,,n a a a a 表示123,,,,n a a a a 中的最小值.若定义()f x ={}2min ,5,21x x x x ---,对于任意的n *∈N ,均有(1)(2)(21f f fn f n k f n +++-+≤ 成立,则常数k 的取值范围是.__________.二.选择题(本大题满分20分)本大题共有4题,每题有且只有一个正确答案,考生应在答题纸的相应编号上,将代表答案的小方格涂黑,每题选对得5分,否则一律得零分.15、下列命题中,错误..的是 ( ) A. 一条直线与两个平行平面中的一个相交,则必与另一个平面相交 B.平行于同一平面的两个不同平面平行C.如果平面α不垂直平面β,那么平面α内一定不存在直线垂直于平面βD.若直线l 不平行平面α,则在平面α内不存在与l 平行的直线16、已知a R ∈,不等式31x x a-≥+的解集为P ,且2P -∉,则a 的取值范围是 ( ) A .3a >- B .32a -<< C .2a >或3a <- D .2a ≥或3a <-17、已知△ABC 为等边三角形,=2AB ,设点P , Q 满足=AP AB λ ,=(1)AQ AC λ-,R λ∈,若3=2BQ CP ⋅- ,则=λ( )A .12B C D 18、函数2xy =的定义域为[,]a b ,值域为[1,16],a 变动时,方程()b g a =表示的图形可 以是 ( )A .B .C .D .三.解答题(本大题满分74分)本大题共有5题,解答下列各题必须在答题纸的相应编号规定区域内写出必须的步骤.19.(本题满分12分,其中(1)小题满分6分,(2)小题满分6分)如图,正三棱柱ABC —A 1B 1C 1的各棱长都相等,M 、E 分别是AB 和AB 1的中点,点F 在BC 上且满足BF ∶FC =1∶3.(1)求证:BB 1∥平面EFM ; (2)求四面体BEF M -的体积。

2014年上海长宁区初三一模化学试卷带答案word版-推荐下载

2014年上海长宁区初三一模化学试卷带答案word版-推荐下载

pH
A.人体的尿液一定呈酸性
C.人体的胃液能使紫色石蕊试液变蓝色 D.人体的血液一定呈碱性
12. 氢氧化钙是一种建筑材料,它的俗名是
A.生石灰
B.石灰石
13.下列实验现象的描述正确的是 A.铁丝在氧气中剧烈燃烧,火星四射,生成氧化铁 B.硫在氧气中燃烧,发出微弱的淡蓝色火焰,产生有刺激性气味的气体 C.木炭在氧气中剧烈燃烧,发出白光,放出热量 D.在大理石上滴加稀盐酸,产生二氧化碳气体
初三化学试卷 共 11 页 第 3 页
B.一氧化碳和二氧化碳 D.氢气和液氢
解释
分子可以分成原子,原子再重新组合成新的分子
对全部高中资料试卷电气设备,在安装过程中以及安装结束后进行高中资料试卷调整试验;通电检查所有设备高中资料电试力卷保相护互装作置用调与试相技互术关,系电通,力1根保过据护管生高线产中0不工资仅艺料可高试以中卷解资配决料置吊试技顶卷术层要是配求指置,机不对组规电在范气进高设行中备继资进电料行保试空护卷载高问与中题带资2负料2,荷试而下卷且高总可中体保资配障料置各试时类卷,管调需路控要习试在题验最到;大位对限。设度在备内管进来路行确敷调保设整机过使组程其高1在中正资,常料要工试加况卷强下安看与全22过,22度并22工且22作尽22下可护都能1关可地于以缩管正小路常故高工障中作高资;中料对资试于料卷继试连电卷接保破管护坏口进范处行围理整,高核或中对者资定对料值某试,些卷审异弯核常扁与高度校中固对资定图料盒纸试位,卷置编工.写况保复进护杂行层设自防备动腐与处跨装理接置,地高尤线中其弯资要曲料避半试免径卷错标调误高试高等方中,案资要,料求编试技5写、卷术重电保交要气护底设设装。备备置管4高调、动线中试电作敷资高气,设料中课并技3试资件且、术卷料中拒管试试调绝路包验卷试动敷含方技作设线案术,技槽以来术、及避管系免架统不等启必多动要项方高方案中式;资,对料为整试解套卷决启突高动然中过停语程机文中。电高因气中此课资,件料电中试力管卷高壁电中薄气资、设料接备试口进卷不行保严调护等试装问工置题作调,并试合且技理进术利行,用过要管关求线运电敷行力设高保技中护术资装。料置线试做缆卷到敷技准设术确原指灵则导活:。。在对对分于于线调差盒试动处过保,程护当中装不高置同中高电资中压料资回试料路卷试交技卷叉术调时问试,题技应,术采作是用为指金调发属试电隔人机板员一进,变行需压隔要器开在组处事在理前发;掌生同握内一图部线纸故槽资障内料时,、,强设需电备要回制进路造行须厂外同家部时出电切具源断高高习中中题资资电料料源试试,卷卷线试切缆验除敷报从设告而完与采毕相用,关高要技中进术资行资料检料试查,卷和并主检且要测了保处解护理现装。场置设。备高中资料试卷布置情况与有关高中资料试卷电气系统接线等情况,然后根据规范与规程规定,制定设备调试高中资料试卷方案。

上海市长宁区2014届高三上学期期末考试(一模)化学试题.pdf

上海市长宁区2014届高三上学期期末考试(一模)化学试题.pdf

22.4Ln(H2SO4)
2.800L
n(H2SO4)=0.125molc(H2SO4)=0.125mol÷0.1L=1.25mol·L-158. (3分 )当钢样粉末中的铁未全部溶解时
(m>1.406g),剩余的固体质量为:(5.624g+mg)-0.125mol×56g·mol-1=(m-1.376)g当钢样粉末中的铁全部溶
C.实验室制溴苯时,将苯与液溴混合后加到有铁丝的反应容器中
D.醋酸钠结晶水合物与碱石灰共热制取甲烷三、选择题(本题共20分,每小题4分,每小题有一个或两个正确选项
。只有一个正确选项的,多选不给分;有两个正确选项的,选对一个给2分,选错一个,该小题不给分
A.原子半径:Z>Y>X
B.气态氢化物的稳定性:R>W
计算硫酸溶液的物质的量浓度58.若在实验Ⅱ中继续加入mg钢样粉末,计算反应结束后剩余的固体质量为多少?(用
含m的代数式表示)
2013学年第一学期高三化学期末质量检测试卷
答案与评分标准
ቤተ መጻሕፍቲ ባይዱ
第I卷 (共66分)第Ⅱ卷(共84分)四、(本题共分)AC 24. (2分 ) BeCl2+2H2O Be(OH)2+2HCl 25.
字母)中通氨气,加入细小食盐颗粒,冷却析出副产品,通氨气的作用有 A. 增大NH4+的浓度,使NH4Cl更多
地析出B 使NaHCO3更多地析出C.使NaHCO3转化为Na2CO3,提高析出的NH4Cl纯度
35.不用其它试剂,检查副产品NH4Cl是否纯净的方法及操作是
.
36. Xg纯碱产品含有碳酸氢钠加热分解,纯碱中碳酸氢钠的质量分数可表示为
A.反应在前50 s内的平均速率v(PCl3)=0.0032 mol/(L·s)
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长宁中学校高2013级2014年下期第一月考试题
命题人:李小龙做题人:物理组
一、选择题:(不定项选择题50分)
1.一个点电荷,从静电场中a点移到b点,其电势能的变化为零,则( )
A.a、b两点的场强一定相等
B.该点电荷一定沿等势面移动
C.作用于该点电荷的电场力与其移动的方向总是垂直的
D.a、b两点的电势一定相等
2.关于电场强度与电势的关系,下面各种说法中正确的是( )
A.电场强度大的地方,电势一定高
B.电场强度不变,电势也不变
C.电场强度为零处,电势一定为零
D.电场强度的方向是电势降低最快的方向
3.电场中有一点P,下列说法正确的是( )
A.若放在P点的点电荷的电荷量减半,则P点的场强减半
B.若P点没有试探电荷,则P点的场强为零
C.P点的场强越大,则同一电荷在P点受的电场力越大
D.P点的场强方向为试探电荷在该点的受力方向
4. 两带电小球,电荷量分别为+q和-q,固定在一长度为l的绝缘杆两端,置于电场强度为E的匀强电场中,杆与场强方向平行,其位置如图1所示,若此杆绕过O点垂直于杆的轴转过180°,则在此过程中静电力做功为( )
图1
A.0 B.qEl C.2qEl D.πqEl
5. 如图2所示,在等量的异种点电荷形成的电场中,有A、B、C三点,A点为两点电荷连线的中点,B点为连线上距A点距离为d的一点,C点为连线中垂线距A点距离也为d的一点,则下面关于三点电场强度的大小、电势高低的比较,正确的是( )
图2
A.E A=E C>E B;φA=φC>φB
B.E B>E A>E C;φA=φC>φB
C.E A<E B,E A<E C;φA>φB,φA>φC
D.因为零电势点未规定,所以无法判断电势的高低
6. 如图3所示,实线为不知方向的三条电场线,从电场中M点以相同速度飞出a、b两个带电粒子,运动轨迹如图中虚线所示.则( )
图3
A.a一定带正电,b一定带负电
B.a的速度将减小,b的速度将增加
C.a的加速度将减小,b的加速度将增加
D.两个粒子的电势能一个增加一个减小
7. 空间有平行于纸面的匀强电场.一电荷量为-q的质点(重力不计).在恒定拉力F的作用下沿虚线
由M 匀速运动到N ,如图4所示.已知力F 和MN 间夹角为θ,M 、N 间距离为d ,则
( )
图4
A .M 、N 两点的电势差为
Fd cos θ
q
B .匀强电场的电场强度大小为Fd cos θ
q
C .带电质点由M 运动到N 的过程中,电势能减少了Fd cos θ
D .若要使带电质点由N 向M 做匀速直线运动,则F 必须反向
8.A 、B 是一条电场线上的两个点,一带负电的粒子仅在电场力作用下以一定的初速度从A 点沿电场
线运动到B 点,其速度v 和时间t 的关系图象如图1-8所示.则此电场的电场线分布可能是图1-9中的(
)
图1-8 图1-9
9. A 、B 两个大小相同的金属小球,A 带有6Q 正电荷,B 带有3Q 负电荷,当它们在远大于自身直径处固
定时,其间静电力大小为F 。

另有一大小与A 、B 相同的带电小球C ,若让C 先与A 接触,再与B 接触,
A 、
B 间静电力的大小变为3F ,则
C 的带电情况可能是( ) A .带18Q 正电荷 B .带12Q 正电荷 C .带36Q 负电荷
D .带24Q 负电荷
10.如图所示,AB 、CD 为一圆的两条直径,且相互垂直,O 点为圆心.空间存在一未
知静电场,场强方向与圆周所在平面平行.现有一电子,在电场力作用下(重力不计),先从A 点运动到C 点,动能减少了W ;又从C 点运动到B 点,动能增加了W ,那么关于此空间存在的静电场可能是( )
A .方向垂直于A
B 并由O 指向
C 的匀强电场 B .方向垂直于AB 并由C 指向O 的匀强电场 C .位于O 点的正点电荷形成的电场
D .位于D 点的正点电荷形成的电场
二、填空题:(10分)
11.在场强为E ,方向竖直向下的匀强电场中,有两个质量均为m 的带电小球,电量分别为+2q 和-q ,两小球用长为L 的绝缘细线相连,另用绝缘细线系住带正电的小球悬于O 点而处于平衡状态.如图所示,重力加速度为 g ,细线对悬点O 的作用力等于 .
12.如图,正点电荷Q 的电场中,A 点场强为100N/C ,C 点场强为36N/C ,B 是AC 的中点,
则B 点的场强为______N/C 。

E
三、计算题:(40分)
13. (11分)如图11所示,a 、b 分别为x 、y 轴上两点,它们与原点O 的距离相等,一束电子以初速度v 0垂直于x 轴从a 点射入,由于匀强电场的作用,电子束恰好从b 点射出,求电子从b 点射出时的速度大小.
图11
14、(14分)如图所示,在平行金属带电极板MN 电场中将电荷量为-4×10-6C 的点电荷从A 点移到M 板,电场力做负功8×10-4 J ,把该点电荷从A 点移到N 板,电场力做正功为4×10-4 J ,N 板接地。

则 (1)A 点的电势A ϕ是多少? (2)UMN等于多少伏? (3)M 板的电势M ϕ是多少?
第14图
15.(15分)如图1-19所示,光滑斜面倾角为37°.质量为m 、电荷量为q 的一带有正电的小物块,置于斜面上.当沿水平方向加有如图所示的匀强电场时,带电小物块恰好静止在斜面上,从某时刻开始,电场强度变为原来的1
2
,求:
图1-19
(1)原来的电场强度为多大? (2)物体运动的加速度大小.
(3)沿斜面下滑距离为L 时的速度大小.(sin 37°=0.6,cos 37°=0.8,g 取10 m/s 2)。

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