北师大版2020年八年级下学期英语期中考试试卷(I)卷
北师大版2020年八年级下学期英语期中考试试卷（I）卷一、单项选择。
(共15题；共30分)1. （2分）New York is a(an) ____________ city.A . ChineseB . EnglishC . AmericanD . Australian2. （2分）— Let's go to see the action movies.— _________.A . Yes, we doB . No, we don'tC . That sounds excitingD . No, thanks.3. （2分）— Does Peter walk home?— ______. He takes the bus.A . No, he doesn'tB . Yes, he doesC . No, he isn'tD . Yes, he is 11.4. （2分）—The more you practice your English, the better you will be at it.—It is ________ said than done.A . easyB . the easierC . easiestD . easier5. （2分）I don't know if he tomorrow. If he , I'll call you at once.A . comes, comesB . will come; comesC . will come, will come6. （2分）—I'm not going hiking this afternoon.—________. I have to clean up the kitchen.A . Neither I amB . Neither am IC . So am ID . So I am7. （2分）He suggested the boy to the hospital first.A . takingB . tookC . takesD . taken8. （2分）——Excuse me sir, where is Room 301?——Just a minute. I'll ask Bob ________ you to your room.A . showB . showsC . to showD . showing9. （2分）——My new iPhone was stolen when I took a bus yesterday.——___________A . I'm sorry to hear that.B . It doesn't matter.C . Don't be silly.D . I'd love to.10. （2分）—Could you please sweep the floor? I'm going to cook dinner. — ________. I'll do it at once, Mom.A . I'm afraid notB . You're kiddingC . It's a shameD . My pleasure11. （2分）—I had a pleasant weekend at your birthday party.—_________.A . Oh, that's very nice of youB . It's a pleasureC . CongratulationsD . I'm glad to hear that12. （2分）His father and mother often argue _______ what TV programmes _________.A . with; watchingB . about; watchingC . with; to watchD . about; to watch13. （2分）The engineers a new computer in our classroom the whole yesterday morning, so we had our classes in the school hall.A . were fixingB . fixedC . have fixedD . are fixing14. （2分）— It's sunny today. How about going skiing in Zhongshan Park?— ________! Let's ask the twins to go together.A . Sounds greatB . Best wishesC . Good luckD . That's OK.15. （2分）—We will send these books and foods to the people in need this Saturday.—________! They will be happy to receive these.A . Thank youB . Don’t worryC . Of courseD . That’s great二、完形填空。
(共1题；共10分)16. （10分）完形填空I did very1 at school. My headmaster thought I was simple and when I was 14, he said, "You are never going to be 2 but a failure."3 five years of low jobs, I fell in love with a very nice middleclass girl. It was the best4 that could have happened to me. I decided I wanted5 something positive with my life because I wanted to prove to6 that what people said about me was 7, especially her mother, who had said to me, "You have 8 in everything you have ever done." So I 9 hard with my writing and went to college. My first novel came out while I was at college.After college I taught during the day in high schools and attended evening classes at London University. I became a lecturer at a college and was thinking of 10 that job to write full time at a university. I began to feel proud of myself.Now I am rich and famous. But what does it mean? I just wish all the people that have put me down had said, "I believe in you. You will succeed."（1）A . goodB . badC . badlyD . well（2）A . anythingB . somethingC . nothingD . /（3）A . AfterB . AgoC . BeforeD . Later（4）A . supportB . happinessC . surpriseD . thing （5）A . doB . to doC . doingD . does （6）A . meB . themC . herD . it（7）A . wrongB . rightC . stupidD . foolish （8）A . succeededB . failedC . aimedD . fired （9）A . tryedB . tryingC . triedD . tries （10）A . giving inB . giving backC . giving outD . giving up三、阅读理解。
(共3题；共30分)17. （10分）阅读理解CSometimes you might feel it impossible to get on with your parents.But in fact, it isn't as difficult as you think.Follow these ways, and then you'll improve your relationship with them.Spend more time with your parents. Your parents won't always be around, so try to spend more time with them.This doesn't mean just sitting in front of the TV together.Instead, you should do more activities with your parents together.By doing them, all of you will feel happy and relaxed.Talk with your parents more often. In order to understand them better, you should talk with them more often.Try to learn more about them.For example, you could ask them about their own childhood.In this way, you will understand them better.Always listen to your parents. This may seem simple, but it's often harder than you think.Look at your parents when they are talking.Don't interrupt them, and then speak clearly when replying to them.Share your feelings with your parents. Sometimes your parents also want to learn more about you.Just do your best to open your heart to them.When possible, talk to them about something at school or what you really want to be in the future.Make your parents feel proud (自豪的). There are always some ways to make your parents feel good about you.By working hard, you can do well at school or win prizes in games.They will think how lucky they are to have you and be more willing to talk about you in front of others.（1）Who is the passage written for?A . Parents.B . Children.C . Old people.D . Teachers.（2）How can you get on with your parents according to the second paragraph?A . By watching TV with them all the time.B . By helping them to do the chores.C . By making up stories about them.D . By spending more time with them.（3）What might the underlined word “interrupt” mean in Chinese?A . 理睬B . 注视C . 打断D . 忽略（4）Which of the following is NOT true according to the passage?A . Here are five different ways to help you get on with your parents.B . It's important to learn to share your feelings with your parents.C . Your good grades or prizes usually make your parents feel proud.D . To improve the relationship with your parents，you should do everything for them.（5）What's the best title for the passage?A . How to get on with your parentsB . When to talk to your parentsC . Why should we study hard at school?D . How to make your parents feel proud18. （10分） There have been many great inventions or things that changed the way we live. The first great invention was the one that is still very important today——the wheel. This made it easier to carry heavy things and to travel long distance.For hundreds of years after that there were few inventions that as much effect as the wheel . Then in the early 1800s the world started to change. There was little unknown land left in the world. People d idn’t have to explore much any more. They began to work instead to make life better.In the second half of the 19th century many great inventions were made. Among them were the camera, the light and the radio. These all play a big part in our daily life today.The first part of the 20th century saw more great inventions. The helicopter in 1909, movies with sound in 1926, the computer in 1928, jet planes in 1930. This was also a time when a new material was first made. Nylon came out in 1935. It changed the kind of clothes people wore.The middle part of the 20th century brought new ways to help people get over diseases. They worked very well. They made people healthier and allowed them to live longer. By the 1960s most people could expect to live to be at least 60.By this time most people in developed countries had a very good life. Of course new inventions continued to be made. But man now had a desire(渴望) to explore again. The earth was known to man but the stars were not. Man began looking for ways to go into space. Russia made the first step. Then United States took a step. Since then other countries , including China and Japan, have made their own steps into space.In 1969 man took his biggest step away from earth. Americans first walked on the moon. This iscertainly just a beginning, though. New inventions will some day allow us to do things we have never yet dreamed of.（1）This passage talks mainly about .A . why cars were very importantB . when light was inventedC . how inventions affect people's daily lifeD . which country made the first step into space（2）According to the passage man didn't have a desire to explore a lot .A . at the beginning of 1800sB . in the 1960sC . since the 1900sD . from the 1800s to 1960s（3）In the 1800s, people began to work in order to make .A . explorationsB . their life betterC . discoveriesD . a trip to space（4）Nylon came out of five years later than .A . radioB . cameraC . jet planesD . movies（5）People can live longer lives because that help cure diseases have worked very well.A . doctorsB . new waysC . medicinesD . new hospitals19. （10分）仔细阅读下列材料，根据阅读内容选择正确答案It's not WASTE until it is WASTED!With the World Environment Day coming, our school is now requiring every student to form a habit of sorting the waste. Here in our schoolyard we lay four different colors of rubbish bins for different kinds of rubbish. The red is for harmful waste; the blue is for waste that can be recycled(循环再用); the green is for kitchen waste; the yellow is for other waste.The followings are some instructions for you.Glass: Empty bottles without caps can be recycled to make new glass bottles.Warning: Mirrors and light bulbs must not be included in the glass waste.Paper: Newspapers, magazines, boxes must be clean enough to be recycled.Warning: Paper tissues and wallpaper are not recyclable as paper and should be kept separately.（分别地）PMD waste: Packaging made of Plastic or Metal and Drink boxes are used to make new packaging.Warning: Plastic pots (e.g. yoghurt pots), plastic bags must not be included with thePMD waste.Harmful waste: out-of-date drugs, used batteries(电池), paint and oil …Besides, if you don't need your old bikes at all, our school volunteers will collect them. We're going to fix them up and then give them away to kids who don'thave enough money for a bike.To find out more about recycling, you can visit our school website.（1）According to the passage, the fish bones(骨) should be thrown in the _______ bin.A . redB . blueC . greenD . yellow（2）From the passage, we can see that _______ do harm to the environment.A . paper tissuesB . empty bottlesC . drink boxesD . out-of-date drugs（3）Which of the following is true?A . All kinds of paper can be recycled.B . Used batteries should be thrown into the blue bins.C . There is information about recycling on the school website.D . Mirrors and light bulbs can be made into new glass bottles.（4）If you give your old bike to the volunteers, it will be ________.A . sold to collect money for the poor kidsB . given away immediately to the poor kidsC . fixed up and given back to you for freeD . fixed up and given away to the poor kids（5）The main purpose of this passage is ________.A . to introduce waste sorting to the studentsB . to look for volunteers for waste sortingC . to introduce the World Environment DayD . to advertise glass, paper and plastic products四、任务型阅读。
2019-2020学年浙江省嘉兴市北京师范大学南湖附属学校八年级第一学期期中英语试卷.(含解析)
2019-2020学年浙江省嘉兴市南湖区北师大南湖附校八年级第一学期期中考试英语试卷二、完形填空。
阅读下面短文，掌握其大意，然后在各题所给的四个选项中选出一个最佳答案。
Alex was a giraffe. He lived in a zoo with his mum, dad and other giraffe friends. As Alex grew, he___16__his neck was much shorter than the others’. He began to get__17__. But his mother told him that he was __18__. She said it did not matter how short or long his __19__ was.Alex tried not to __20__ his short neck. But as his friends grew taller and taller, his neck _21__ short. Sometimes the other giraffes__22___ him, but his parents told him not to worry. They said that he should be happy with _23__ the way he was. He tried, but he could not even play in some giraffe sports. He was just too _24___.One day, one of the zoo workers came and took Alex away. Alex was afraid. Would he have to leave the zoo just __25__ he didn’t have a long neck? The zoo worker calmed (使镇静) Alex down and gave him some food. He felt__26__. Then he led Alex into another area of the zoo. There was a small __27___ between the two areas. Alex was the only giraffe that could go through it.Soon Alex’s __28__ came to see him. “I told you that you were special.” his mother said. “The zoo has made a place just for __29__ because so many people want to see how special you are!”She was right. Tourists pointed to him and felt___30___. They looked happy to see something so special at the zoo.16 A.believed B.found C.hoped D.agreed17 A.careful B.great C.interested D.worried18 A.fat B.thin C.special mon19 A.leg B.neck C.foot D.hair20 A.go over B.find out C.think about D.look for21 A.stayed B.became C.turned D.felt22 A.looked after B.fell behind ughed at D.heard of23 A.herself B.himself C.themselves D.ourselves24 A.tall B.short C.fat D.thin25 A.after B.when C.because D.before26 A.better B.worse C.sadder D.angrier27 A.box B.hole C.window D.door28 A.grandparents B.parents C.teachers D.friends29 A.him B.you D.me30 A.excited B.angry C.sad D.heavy【答案】BDCBC ACBBC ADBBA【解答】16.考察动词。
北师大版初二下学期英语期中综合练习
一、根据句意选择括号中正确的词填空。
（20分）1. He fell over and __________ (A hurt, B hurts) himself.2. Did you _________ (A bought, B buy) the book we talked about yesterday.3. Do you often help elderly people__________ (A crossing, B to cross) the street?4. People are _________ (A expecting, B expected) to respect old people.5. Tom often helps me _________ (A clean, B cleaning) the classroom.6. There _________(A were, B was) a lot of traffic on the road, so we were late for the meeting.7. I ________(A watch, B watched) a movie on TV last night.8. People could not cross the river_________ (A if, B unless) they had some sort of boat.9. The company couldn’t _______(A afford, B to afford ) to pay so much money.10. He was late but he was able to catch the train________(A lucky, B luckily).11. I was so tired that I stopped _________(A to have a rest, B having a rest).12. The bus broke down and _________(A can’t, B couldn’t) move.13. Do you know _________(A some, B any) road safety rules?14. Don’t give rides to ________(A other, B others) people.15. He never drives after__________(A drinking, B to drink).16. In England, you have to drive __________(A in, B on) the left side of the road.17. How old do you _________(A have to, B must) be to drive a car?18. She doesn’t mind __________(A getting, B to get) up early.19. They love the city and expect_________(A living, B to live) there.20. I spend half an hour ________(A to read, B reading) English every day.二、从下列各题所给A、B、C、D四个选项中选择最佳选项。
北师大版2024—2025学年八年级上册数学期中考试模拟试卷(测试范围第一章~第四章)
北师大版2024—2025学年八年级上册数学期中考试模拟试卷（测试范围:第一章~第四章）考生注意：本试卷共三道大题，25道小题，满分120分，时量120分钟注意事项:1.本试卷分第I卷(选择题)和第II卷(非选择题)两部分。
答卷前，考生务必将自己的姓名、学号、准考证号填写在答题卡上。
2.回答第I卷时，选出每小题答案后，将答案填写在答题卡上对应题目的序号上，答案写在本试卷上无效。
3.回答第II卷时，将答案写在答题卡上。
写在本试卷上无效。
4.测试范围:第一章~第四章(北师大版)。
5.考试结束后，将本试卷和答题卡一并交回。
第I卷一、选择题（每题只有一个正确选项，每小题3分，满分30分）1、下列四个数中，是无理数的是（）A．3.14B．C．D．2、在平面直角坐标系中，点（3，﹣4）在（）A．第一象限B．第二象限C．第三象限D．第四象限3、下列表示的图象，y不是x的函数的是（）A．B．C．D．4、估算的值在（）A．1和2之间B．2和3之间C．3和4之间D．4和5之间5、已知3m＝a，3n＝b，那么32m+n等于（）A．2ab B．a2+b C．a2b D．a﹣b6、以下列各组数为边长的三角形中，是直角三角形的是（）A．0.3，0.4，0.5B．5，6，11C．2，，D．4，5，67、一次函数y＝7x﹣3的图象不经过的象限是（）A．第一象限B．第二象限C．第三象限D．第四象限8、在Rt△ABC中，∠C＝90°，AC＝2，BC＝4，则点C到斜边AB的距离是（）A．B．2C．D．9、在同一坐标系中，函数y＝kx与y＝2x﹣k的大致图象是（）A．B．C．D．10、已知点和点是直线y＝（k﹣2）x+b（0＜k＜2）上的两个点，则m，n的大小关系是（）A．m＜n B．m＞n C．m＝n D．不能确定二、填空题（每小题3分，满分18分）11、在平面直角坐标系内，点M（﹣9，12）到y轴的距离是．12、若二次根式有意义，则a的取值范围是．13、一个直角三角形的两边长是3和4，那么第三边的长是．14、比较大小：（填“＞、＜、或＝”）．15、已知函数y＝（k﹣3）x|k|﹣2+6是一次函数，则k＝．16、如图，正方形ABCD的边长是12，E，F，G分别是BC，CD，BD上的点，已知BE＝8，DF＝9，求三角形EFG周长的最小值．第II卷北师大版2024—2025学年八年级上册数学期中考试模拟试卷（答题卡）考生注意：本试卷共三道大题，25道小题，满分120分，时量120分钟姓名：____________ 学号：_____________准考证号：___________11、_______ 12、______13、_______ 14、______15、_______ 16、______三、解答题（17、18、19题每题6分，20、21每题8分，22、23每题9分，24、25每题10分，共计72分，解答题要有必要的文字说明）17、计算：﹣+（﹣1）+2．18、已知：x﹣6和3x+14是a的两个不同的平方根，2y+2是a的立方根．（1）求x，y，a的值；（2）求1﹣4x的算术平方根．19、已知y+1与x﹣1成正比，且当x＝3时y＝﹣5，请求出y关于x的函数表达式．20、已知．（1）求a的值；（2）若a、b分别为一直角三角形的斜边长和一直角边长，求另一条直角边的长度．21、平面直角坐标系中，已知点M（m+2，m﹣5）．（1）若点M在x轴上，求点M坐标；（2）若点M在第二、四象限的角平分线上，求点M坐标；（3）在同一平面直角坐标系中，点A（4，6），且AM∥y轴，求点M坐标．22、如图，把一张长方形纸片ABCD折叠起来，使其对角顶点A与C重合，D与G重合，若长方形的长BC为8，宽AB为4，求：（1）DE的长；（2）求阴影部分△GED的面积．23、某工厂计划生产甲、乙两种产品共2500吨，每生产1吨甲产品可获得利润0.3万元，每生产1吨乙产品可获得利润0.4万元．设该工厂生产了甲产品x（吨），生产甲、乙两种产品获得的总利润为y（万元）．（1）求y与x之间的函数表达式（不需要写出自变量取值范围）；（2）根据市场调研发现，甲产品需求量吨数范围是1000≤x≤1200．求出该工厂生产甲、乙两种产品各为多少吨时，能获得最大利润．24、如图，在△ABC中，AB＝AC，AD⊥BC于点D，∠CBE＝45°，BE分别交AC、AD于E、F．（1）如图1，AB＝12，BC＝8，求AF的长度；（2）如图2，取BF中点G，若BF2+EF2＝CG2，求证：AF＝BC；（3）如图3，在（2）的条件下，过点D作DN⊥AC于点N，并延长ND交AB延长线于点M，请直接写出的值．25、如图1，在平面直角坐标系中，点A坐标为（﹣4，4），点B的坐标为（2，0）．（1）求线段AB的长；（2）点M是坐标轴上的一个点，若以AB为直角边构造直角三角形△ABM，请求出满足条件的所有点M的坐标；（3）如图2，以点A为直角顶点作∠CAD＝90°，射线AC交x轴的负半轴于点C，射线AD交y轴的负半轴于点D，当∠CAD绕点A旋转时，OC﹣OD 的值是否发生变化？若不变，直接写出它的值；若变化，直接写出它的变化范围（不要求写解题过程）．。
(北师大版)初中英语八年级下册 Unit 1单元测试(一)附答案
Unit 1 Technology and the Future 单元测试听力部分（共20分）一、听长对话及后面的问题，根据对话内容选择每个问题的最佳答案，对话和问题读两遍。
（共5分，每小题1分）1. A. He has a cold. B. He has a fever. C. He has a headache.2. A. Playing computer games. B. Sleeping all day. C. Dreaming all night.3. A. Keeping warm. B. Having a warm bath. C. Drinking more water.4. A. Half an hour a day. B. Three times a day. C. Once a day.5. A. Relax a little. B. Take more pills once. C. Go to bed early.二、听短对话和问题，选择符合每个问题的正确答案，每段对话和问题读两遍。
（共5分，每小题1分）6. A. Football. B. Table tennis. C. Basketball.7. A. Cakes. B. Fish. C. Vegetables.8. A. Cook. B. Teacher. C. Doctor.9. A. Goldfish. B. Elephant. C. Tortoise.10. A. No photos. B. No smoking. C. No parking.三、听下面的短文，短文后有5个小题，从题中所给的A、B、C三个选项中选出最佳选项，短文读两遍。
（共5分，每小题1分）11. The speaker first came to ________ in the story.A. EnglandB. the U.S.A.C. Australia12. How many days did the speaker go to the language school per week？A. Five.B. Six.C. Seven.13. When did the speaker ask Kate a question？A. After school.B. In an English class.C. During the break.14. What did the speaker think after Kate said those words？A. Kate was really helpful.B. Kate wanted to eat a cake.C. America was really a country where you had to pay for everything.15. Why did Kate look at the speaker with a big smile？A. Because the speaker was funny.B. Because the speaker mistook her.C. Because Kate was very friendly to her.四、听一段电话留言，根据其内容完成下面的信息卡，每空一词，电话留言读两遍。
北师大版初中英语八下Unit6单元测试试题试卷含答案1
Unit6Detectives单元测试一、听力（听力）（共20小题；共20分）听力理解（共20小题）（一）录音中有五个句子，每个句子听一遍，然后从每小题A、B、C中选出能对每个句子做出适当反应的答语。
1.A.Thank you. B.No problem. C.Sounds great!2.A.Never mind. B.See you soon! C.Not bad.3.A.Don’t mention it. B.Good idea. C.I’m glad you like it.4.A.I see. B.Yes,please. C.With pleasure.5.A.It doesn’t matter. B.I don’t think so. C.You are welcome.（二）录音中有五组对话，听对话两遍后，以每小题A、B、C中选出能回答所给问题的正确答案。
6.Why does Jack look nervous?A.Because his bike is broken.B.Because he can’t find his bike.C.Because he has lost the key to his bike.7.What will Henry do after school?A.Play tennis.B.Take piano lessons.C.Play computer games.8.Who are the two speakers?A.Mother and son.B.Teacher and student.C.Doctor and patient.9.How much is the smart phone today?A.200yuan.B.400yuan.C.800yuan.10.Where is the amusement park?A.On Bridge Road.B.On Xinhua Square.C.Behind the bus station.（三）录音中有段对话，听对话两遍后，从每小题A、B、C中选出能回答所给问题的答案。
初二英语北师大版试卷
初二英语北师大版试卷考试范围：xxx；考试时间：xxx分钟；出题人：xxx姓名：___________班级：___________考号：___________1．答题前填写好自己的姓名、班级、考号等信息2．请将答案正确填写在答题卡上一、单项选择1.Mr.Smith has been here for many years, he has few friends.A．but B．and C．or D．so 212.—How long _______home?—For about three months.A．have you been away fromB．did you leaveC．have you leftD．are you away from3.I ____ a tour guide for 7 months.A．became B．was C．have been D．have become4.—When and where _______ we meet?—Let’s make it 3:00 at my home.A. doB. mustC. shall5.I’d like to drink coffee ______ much sugar. Or it will taste so sweet (甜). A．hasB．doesn’t haveC．withD．without6.--- What do you think of the new student, Mike?--- Oh, he’s really athletic and much ___ than me.A．outgoing B．quiet C．more outgoing D．more quietere this _______.A．road B．street C．way D．here8.---Which do you like ____, Chinese, English or math?--- English.A．good B．better C． best D．well9.----We are building the subway in Wuxi now.-----Wow, __________________!A．What an excited newsB．how excited the news isC．What exciting newsD．how exciting news10.The old radio requires____________, so you’d better have it ______soon.A．to repair, repaired B．repairing, repaired C． repaired, repair D． to repairing, repair评卷人得分二、单词拼写用所给词的正确形式填空。
2024-2025学年北师大版初二上学期期中英语试卷及答案指导
2024-2025学年北师大版英语初二上学期期中自测试卷及答案指导一、听力部分（本大题有20小题，每小题1分，共20分）1、听力材料：W: Hello, John. How was your weekend?M: It was great! I went hiking with my friends in the mountains. The scenery was amazing.Question: What did John do over the weekend?A) He went hiking.B) He went swimming.C) He went shopping.D) He went to the movies.Answer: A) He went hiking.Explanation: The dialogue mentions that John went hiking with his friends, so the correct answer is A.2、听力材料：M: Hi, Li Hua, how do you like your new school?W: It’s fantastic! I love the teachers and my classmates are really friendly.Question: How does Li Hua feel about her new school?A) She thinks it’s boring.B) She thinks it’s great.C) She thinks it’s too difficult.D) She thinks it’s to o small.Answer: B) She thinks it’s great.Explanation: In the dialogue, Li Hua expresses her positive feelings about her new school, saying it’s fantastic, which means she thinks it’s great.3.You are listening to a conversation between two students discussing their weekend plans.A. What are the students planning to do this weekend?B. Where are the students going to go for their trip?W: Hey, John, do you have any plans for this weekend?M: Yeah, I’m thinking of going hiking with my friends. How about yo u?W: That sounds fun! I’m planning to visit my grandparents in the countryside. It will be a great chance to relax and enjoy nature.A. They are planning to go hiking.B. They are planning to visit their grandparents.Answer: A. They are planning to go hiking.Explanation: The male student mentions that he is thinking of going hiking with his friends, indicating their plan for the weekend.4.You are listening to a news report about a new educational program.A. What is the new educational program about?B. Who is in charge of the program?News Anchor: Good morning, everyone. We have some exciting news to share with you today. A new educational program has been launched in our city. The program aims to provide free tutoring services to underprivileged students. This initiative is being led by the local community center, in collaboration with several local schools and volunteers.A. The program is about free tutoring services for underprivileged students.B. The program is in charge of by the local community center.Answer: A. The program is about free tutoring services for underprivileged students.Explanation: The news report explicitly states that the new educational program is designed to provide free tutoring services to underprivileged students, making option A the correct answer. The report also mentions that the program is led by the local community center, but it is not the in charge of the program as a whole, which is why option B is not entirely accurate.5、What is the speaker’s opinion about the importance of exercise?A)It’s not necessary to exercise regularly.B)Exercise is very important for maintaining good health.C)Exercise can only be beneficial if done in moderation.D)People should only exercise when they feel like it.Answer: B) Exercise is very important for maintaining good health.Explanation: The question asks for the speaker’s opinion on the importanceof exercise. The correct answer is indicated by the phrase “Exercise is very important for maintain ing good health,” which suggests that the speaker believes in the significance of regular exercise.6、Why does the student want to change her schedule?A)She has too many free periods.B)She needs more time for her hobbies.C)She wants to take a different elective course.D)She has too many assignments.Answer: C) She wants to take a different elective course.Explanation: The question inquires about the reason the student wants to change her schedule. The correct answer is provided by the statement “She wants to t ake a different elective course,” indicating that the student’s motivation for changing her schedule is to enroll in a different elective subject.7、Listen to the conversation between two friends and answer the question.A. What is the weather like today?B. Where is their school?C. What are they discussing?Answer: BExplanation: The conversation starts with “Hey, do you know where our school is?” indicating they are discussing the location of their school.8、Listen to the dialogue and choose the correct answer to the question.A. They are talking about their summer vacation.B. They are planning a school trip.C. They are discussing a sports event.Answer: BExplanation: In the dialogue, the speakers mention “Let’s plan a school trip this weekend” which clearly indicates that they are discussing a school trip.9、Listen to the dialogue and answer the question.W: Hey, John. How was your weekend?M: It was great! I went hiking with my friends and we saw some amazing views.Q: What did John do over the weekend?A: John went hiking with his friends.B: John stayed home.C: John went shopping.D: John watched movies.Answer: AExplanation: The question asks what John did over the weekend. The dialogue mentions that John went hiking with his friends, so the correct answer is A.10、Listen to the conversation and complete the sentence with the missing word.M: Hi, Sarah. How was your English class today?W: It was quite challenging. Our teacher asked us to write a short essay about our favorite book. Unfortunately, I couldn’t think of a book right away.M: That’s okay. You can choose any book you like. I recommend “To Killa Mockingbird” by Harper Lee.W: Oh, I’ve heard of that book. It sounds interesting. I’ll consider it.M: I’m glad you’re thinking about it. Reading is very beneficial for your English skills.W: Absolutely. By the way, did you enjoy the book?M: Yes, I did. It’s a classic and teaches us a lot about life and justice.Q: What book does the man recommend?A: “The Great Gatsby”B: “To Kill a Mockingbird”C: “Pride and Prejudice”D: “1984”Answer: BExplanation: The question asks which book the man recommends. In the conversation, the man suggests that Sarah reads “To Kill a Mockingbird” by Harper Lee, so the correct answer is B.11.Listen to the dialogue and choose the best answer.A. They are discussing a school project.B. They are planning a trip to the museum.C. They are talking about a sports event.Answer: CExplanation: The dialogue includes the speakers discussing a sports match, so the correct answer is C. They are talking about a sports event.12.Listen to the passage and answer the following question.Question: What is the main topic of the passage?A. The benefits of exercise.B. The history of a famous athlete.C. The importance of healthy eating.Answer: AExplanation: The passage focuses on the different types of exercise and their benefits for the body, so the correct answer is A. The benefits of exercise.13.Explanation: The question asks what John did over the weekend. The conversation indicates that he went hiking with some friends, so the correct answer is A.14,Listen to the following dialogue and complete the sentence with the correct word.M: How do you usually spend your holidays, Lisa?W: Well, I usually travel to different places. Last summer, I went to Paris, and this summer, I plan to visit Rome.M: That sounds amazing! Rome must be full of history and culture.W: Yes, it is. I can’t wait to explore the Colosseum and the Vatican.Q: What is Lisa planning to visit this summer?A: The Eiffel TowerB: The Colosseum and the VaticanC: The Louvre MuseumD: The Statue of LibertyAnswer: B14.Explanation: The question asks what Lisa is planning to visit this summer. According to the dialogue, she mentioned that she plans to visit Rome and explore the Colosseum and the Vatican, so the correct answer is B.15、Listen to the following dialogue and choose the best answer to complete the sentence.A: Excuse me, could you tell me where the nearest bathroom is?B:________________A. It’s right behind the cafeteria.B. It’s on the second floor.C. It’s in the library.Answer: BExplanation: The question asks for the location of the nearest bathroom. The correct answer is B, as it provides a specific floor where the bathroom is located.16、Listen to the following passage and answer the question.W: Hi, John. How was your weekend?M: Oh, it was great! I went hiking with a group of friends and we saw some amazing scenery. We also stopped at a small lake for a picnic lunch. The weather was perfect!Q: What did John do on the weekend?A. He went shopping.B. He went hiking.C. He studied.Answer: BExplanation: The question asks what John did over the weekend. The correct answer is B, as the passage clearly states that John went hiking with friends.17.You are listening to a conversation between two students, Alice and Bob. They are discussing their weekend plans.Alice: “Hi, Bob! What are you planning to do this weekend?”Bob: “Well, I’m thinking of going hiking. It’s supposed to be a great day for it. How about you?”Alice: “I’m actually planning to visit the art museum. I’ve heard the y have a new exhibit.”Bob: “That sounds interesting! Do you think you’ll be able to finish it in one day?”Alice: “I hope so. I’m looking forward to seeing it.”Question: What is Bob’s plan for this weekend?A. Visiting the art museumB. Going hikingC. Attending a concertD. Reading a bookAnswer: BExplanation: In the conversation, Bob mentions that he is thinking of going hiking, which indicates that his plan for the weekend is to go hiking. Therefore, the correct answer is B.18.Listen to a short dialogue between a teacher and a student about a school project.Teacher: “Hi, Emily. How’s your project coming along?”Emily: “Oh, it’s going okay. I’ve done most of the research, but I’m still working on the presentation.”Teacher: “That’s great to hear! Have you thought about what you’re going to include in your presentation?”Emily: “Yes, I’m planning to focus on the key findings from the research. I also want to include some visual aids to make it more engaging.”Teacher: “That sounds like a good approa ch. Make sure to practice your presentation before the deadline.”Question: What is Emily working on for her school project?A. The researchB. The presentationC. The visual aidsD. The project reportAnswer: BExplanation: In the dialogue, Emily mentions that she is still working on the presentation for her school project. This indicates that her current focus ison the presentation. Therefore, the correct answer is B.19.You are listening to a conversation between two students discussing their weekend plans.A. What are they planning to do this weekend?B. What are their favorite hobbies?Answer: AExplanation: The conversation begins with the first student saying, “So, what are you planning to do this weekend?” This indicates that they are discussing their weekend plans, making option A the correct answer. Option B is incorrect because the conversation does not mention their favorite hobbies.20.You are listening to a phone conversation between a mother and her daughter.A. Is the mother worried about her daughter?B. Is the daughter planning to study for an exam?Answer: AExplanation: The mother starts the conversation by saying, “I’m worried about your health. Are you sure you’re eating properly?” This shows that the mother is concerned about her daught er’s well-being, making option A the correct answer. Option B is incorrect because the conversation does not discuss studying for an exam.二、阅读理解（30分）Reading ComprehensionPassage:The following is an excerpt from a local newspaper about a new community garden project that has recently been started in the city.Community Garden Project Kicks OffIn a bid to promote environmental awareness and encourage community bonding, the city’s government has launched a new community garden project. The project, named “Green Thumbs,” aims to provide residents with a space to grow their own vegetables and flowers, fostering a sense of community and sustainability.The garden, located in the heart of the city park, covers an area of 10,000 square meters. It is designed to be accessible to all residents, regardless of their gardening experience. The city government has allocated resources for the construction of raised beds, compost bins, and water sources. Additionally, a team of volunteers, including local gardeners and horticulturists, has been trained to assist and educate the community members.The project’s coordinator, Maria Gomez, expressed her excitement about the initiative. “We believe that a community garden can bring people together and create a space where they can learn from each other,” she said. “It’s also a great way to reduce our carbon footprint and support local food production.”Local residents have responded positively to the project. Many have already signed up to participate, and the garden has quickly become a hub for socialgatherings. Some residents are using the garden to grow organic vegetables for their families, while others are focusing on planting flowers to enhance the park’s beauty.The community garden project is set to run for a year, after which the city government will evaluate its success and consider extending it or implementing similar projects in other areas.Questions:1.What is the main purpose of the “Green Thumbs” community garden project?A) To create a space for artists to showcase their work.B) To promote environmental awareness and encourage community bonding.C) To provide a place for city employees to relax during breaks.D) To increase the city’s tourism industry.2.Who is responsible for the training and assistance provided to the community members at the garden?A) Local businessesB) The city governmentC) The local school districtD) The local police department3.According to the passage, what is one of the benefits of the community garden project?A) It helps to reduce traffic congestion in the city.B) It provides a source of income for local businesses.C) It promotes the growth of rare plant species.D) It creates a space for social gatherings and learning.Answers:1.B) To promote environmental awareness and encourage community bonding.2.B) The city government3.D) It creates a space for social gatherings and learning.三、完型填空（15分）Exercise 3: Gap FillingRead the following passage and choose the best word for each blank from the options given below. Write the letter (A), (B), (C), (D), or (E) corresponding to your answer in the blank.John had always been an avid reader. One day, he decided to take a break from his usual fiction books and explore a different genre. He went to the local library and spent hours browsing through the non-fiction section. (1) ______, he found a book that caught his attention: “The Science of Happiness.” (2)______he started reading it, he realized how much he enjoyed learning about the science behind happiness.(1)A. Suddenly B. Unexpectedly C. Gradually D. Suddenlyly E. Graduallyly(2)A. As soon as B. As soon as he C. As he D. As soon as he did E. As soonas he hasAnswers:(1)B. Unexpectedly(2)A. As soon as四、语法填空题（本大题有10小题，每小题1分，共10分）1、The book,_______cover is green, is my favorite.A. whoseB. whichC. thatD. it答案：A解析：本题考查定语从句。
2023北京西城北师大实验中学初二期中(下)英语试卷及答案
北师大附属实验中学2022-2023学年度第二学期期中试卷初二年级英语 2023.4班级 姓名 学号 成绩考 生 须 知 1．本试卷共10页，共5道大题，39道小题；答题纸共2页。
满分60分，考试时间90分钟。
2．在试卷和答题卡上准确填写班级、姓名、学号。
3．试卷答案一律填写在答题卡上，在试卷上作答无效。
4．在答题卡上，选择题须用2B铅笔将选中项涂黑涂满，其他试题用 黑色字迹签字笔作答。
命题人：刘靖 贺亚丽 审题人：刘鹏程第一部分本部分共33题，共40分。
在每题列出的四个选项中，选出最符合题目要求的一项。
一、单项选择。
（共6分，每小题0.5分）从下面各题所给的A、B、C、D四个选项中，选择可以填入空白处的最佳选项。
1. My parents will come to see me tomorrow. I’ll meet ______ at the airport.A. theyB. themC. youD. him2. My brother usually watches a movie ______ Saturday evening.A. atB. inC. onD. by3. She got up late, ______ she missed the bus.A. soB. becauseC. althoughD. but4. — _____ is your plan for the weekend?— I’m going to watch a football match with my friends.A. WhatB. WhereC. WhichD. When5. The Hong Kong-Zhuhai-Macao Bridge is ______ oversea bridge in the world.A. longB. longerC. the longestD. longest6. — Have you watched the latest film Avatar II?— Of course, I ______ it last week.A. have watchedB. watchedC. watchD. will watch7. Mr. Green, the famous writer, ______ our school every month.A. visitedB. visitsC. is visitingD. will visit8. — Mr. Smith, can I talk with you right now?— I’d like to but I am afraid I can’t. I _____ a meeting in 10 minutes.A. have hadB. haveC. hadD. will have9. — Hi, Bob. I called you at eight last night, but you didn’t pick up.— Oh, I’m sorry. I ______ in my room at that time.A. was sleepingB. am sleepingC. sleepD. slept10. It’s nice to see you again. We ______ each other since 2014.A. won’t seeB. don’t seeC. haven’t seenD. didn’t see11. — David, how long have you been in China?— I ______ here for 12 years. I ______ here in 2011.A. came; cameB. have been; cameC. have been; have beenD. came; have been12. My trip to Shanghai is really exciting, and I can’t wait ______ there again.A. to visitB. visitC. visitingD. for visiting二、完形填空。
2024—2025学年北师大版八年级上册数学期中考试模拟试卷
八年级上册数学期中考试模拟试卷北师大版2024—2025学年秋季本试卷共三道大题，25道小题，满分120分，时量120分钟注意事项∶1．本试卷分第I 卷（选择题）和第II 卷（非选择题）两部分．笞卷前，考生务必将自己的姓名、准考证号填写在答题卡上．2．回答第I 卷时，选出每小题答案后，把答案填写在答题卡上对应题目的位置，填空题填写在答题卡相应的位置写在本试卷上无效．3．回答第II 卷时，将答案写在第II 卷答题卡上．4．考试结束后，将本试卷和答题卡一并交回．第I 卷一、选择题（每题只有一个正确选项，每小题3分，满分30分）1．数学中有许多精美的曲线．以下是“笛卡尔叶形线”“阿基米德螺线”“三叶玫瑰线”和“星形线”，其中一定不是轴对称图形的是（ ）A ．B ．C ．D ．2．下列运算正确的是（ ）A ．1=B =C 2¸=D 4=3．以下4个一次函数中，y 随x 增大而减小，且其图象过点()0,2-的是（ ）．A ．2y x =-B ．2y x =--C ．2y x=-D ．2y x =-+4．若点A 的坐标是()2,1,4AB -=，且AB 平行于y 轴，则点B 的坐标为（ ）A ．()2,5-B ．()6,1-或()2,1--C ．()2,3D ．()2,3或()2,5-5 ）A B C D6．点1(,)t y ，2(1,)t y -在一次函数2xy b =--的图象上，则1y ，2y 的大小关系是（ ）A ．12y y <B ．12y y =C ．12y y >D ．无法确定7．汽车开始行驶时，油箱内有油40升，如果每小时耗油5升，则油箱内余油量y （升）与行驶时间x （时）之间的函数关系式为（ ）A ．405y x =+B ．540y x =+C ．540y x =-D ．405y x=-8．若点(,)P a b 在第一象限，则点(,)Q a b --在第（ ）象限．A ．一B ．二C ．三D ．四9．如图，△ABC 与△DEF 关于直线MN 轴对称，则以下结论中不一定正确的是（ ）A ．AD 的连线被MN 垂直平分B ．AB ∥DFC ．AB=DED ．∠B=∠E10．“赵爽弦图”巧妙地利用面积关系证明了勾股定理，是我国古代数学的骄傲．如图所示的“赵爽弦图”是由四个全等的直角三角形和一个小正方形拼成的一个大正方形．如果大正方形的边长是5，小正方形的边长是2，直角三角形的两直角边长分别是,()a b b a >，则2()a b +的值为（ ）A ．16B ．23C ．35.5D ．46二、填空题（每小题3分，满分18分）11．在平面直角坐标系中，点P(﹣5，3)关于y 轴的对称点的坐标为 ．12．已知12xy =，8x y +=-，则的值为 ．13．直线y kx b =+平行于直线2y x =-，且与y 轴交于点()03，，则此函数的解析式y =．14．若一个正数的两个平方根分别为32a +和2a +，则这个数是 ．15．如图，长方体的长，宽，高分别为2cm,1cm,4cm ，蚂蚁在长方体表面爬行，从点A 爬到点B 的最短路程是．16．如图，在平面直角坐标系中，一动点从原点O 出发，按向上，向右，向下，向右的方向不断地移动，每移动一个单位，得到点()10,1A ，()21,1A ，()31,0A ，()42,0A ，…那么点2024A 的坐标为第II 卷三、解答题（17、18、19题每题6分，20、21每题8分，22、23每题9分，24、25每题10分，共计72分，解答题要有必要的文字说明）17．解方程(1)2325416x æö+=ç÷èø；(2)383(1)09x -+=．18．如图，某住宅小区在施工过程中留下了一块空地，已知4=AD 米，3CD =米，90ADC Ð=°，13AB =米，12BC =米，求这块空地的面积？19．如图所示，在长方形ABCD 中，AB ＝8，BC ＝4，将长方形沿AC 折叠，使点D 落在点D′处，求重叠部分△AFC 的面积．20．如图，在ABC V 中，90ACB Ð=°，5cm AB =，3cm BC =，CD AB ^于D ．求：(1)AC 的长和ABC V 的面积；(2)CD 的长．21．已知点(34,2)P a a --+，解答下列各题：(1)若点P 在x 轴上，试求出点P 的坐标；(2)若(5,8)Q ，且PQ y ∥轴，试求出点P 的坐标．22．如图，已知一次函数y=kx+b 的图象经过A （﹣2，﹣1），B （1，3）两点，并且交x 轴于点C ，交y 轴于点D ．（1）求一次函数的解析式；（2）求点C 和点D 的坐标；（3）求△AOB 的面积．23．区间测速是指在某一路段前后设置两个监控点，根据车辆通过两个监控点的时间来计算车辆在该路段上的平均行驶速度．小春驾驶一辆小型汽车在高速公路上行驶，其间经过一段长度为20千米的区间测速路段，从该路段起点开始，他先匀速行驶112小时，再立即减速以另一速度匀速行驶（减速时间忽略不计），当他到达该路段终点时，测速装置测得该辆汽车在整个路段行驶的平均速度为100千米/时．汽车在区间测速路段行驶的路程y （千米）与在此路段行驶的时间x （时）之间的函数图象如图所示．(1)a 的值为________；(2)当112x a ££时，求y 与x 之间的函数关系式；(3)通过计算说明在此区间测速路段内，该辆汽车减速前是否超速．（此路段要求小型汽车行驶速度不得超过120千米/时）24．在襄阳市创建“经济品牌特色品牌”政策的影响下．每到傍晚，市内某网红烧烤店就食客如云，这家烧烤店的海鲜串和肉串非常畅销，店主从食品加工厂批发以上两种产品进行加工销售，其中海鲜串的成本为m 元/支，肉串的成本为n 元/支；两次购进并加工海鲜串和肉串的数量与成本如下表所示（成本包括进价和其他费用）：数量（支）次数海鲜串肉串总成本（元）第一次3000400017000第二次4000300018000针对团以消费，店主决定每次消费海鲜串不超过200支时，每支售价5元；超过200支时、不超过200支的部分按原价，超过200支的部分打八折．每支肉串的售价为3.5元．(1)求m 、n 的值；(2)五一当天，一个旅游团去此店吃烧烤，一次性消费海鲜串和肉串共1000支，且海鲜串不超过400支．在本次消费中，设该旅游团消费海鲜串x 支，店主获得海鲜串的总利润为y 元，求y 与x 的函数关系式，并写出自变量x 的取值范围；(3)在（2）的条件下，该旅游团消费的海鲜串超过了200支，店主决定给该旅游团更多优惠，对每支肉串降价a （01a <<）元，但要确保本次消费获得肉串的总利润始终不低于海鲜串的总利润，求a 的最大值．25．如图1，在平面直角坐标系中，点A 的坐标为()6,0，一次函数36y x =+分别与x 轴和y轴交于点C和点B．(1)求直线AB的解析式；(2)点D是在直线AB上的动点，是否存在点D，使得12ACD ABCS S=V V？若存在，求出点D的坐标；若不存在，请说明理由；(3)如图2，P为A点右侧x轴上的一动点，以P为直角顶点、BP为腰在第一象限内作等腰直角BPQV，连接QA并延长交y轴于点K．当P点运动时，K点的位置是否发生变化？如果不变，请直接写出它的坐标；如果变化，请说明理由．1．B【分析】根据轴对称图形的概念：如果一个图形沿一条直线折叠，直线两旁的部分能够互相重合，这个图形叫做轴对称图形，这条直线叫做对称轴，这时，我们也可以说这个图形关于这条直线（成轴）对称，进行判断即可．【详解】解：A ，C ，D 选项中的图形都能找到这样的一条直线，使图形沿一条直线折叠，直线两旁的部分能够互相重合，所以是轴对称图形；B 选项中的图形不能找到这样的一条直线，使图形沿一条直线折叠，直线两旁的部分能够互相重合，所以不是轴对称图形． 故选：B ．【点睛】本题考查的是轴对称图形的概念，正确掌握相关定义是解题关键．2．D【分析】根据二次根式的运算法则逐项判断．【详解】解：=，故选项A 错误，不符合题意；B 错误，不符合题意；=C 错误，不符合题意；4==，故选项D 正确，符合题意；故选：D ．【点睛】本题考查二次根式的运算，解题是关键是掌握二次根式相关的运算法则．3．B【分析】本题考查一次函数的图象和性质，根据图象过点()0,2-，设直线的解析式为：2y kx =-，根据y 随x 增大而减小，得到0k <，进行判断即可．【详解】解：∵一次函数的图象过点()0,2-，∴设直线的解析式为：2y kx =-，∵y 随x 增大而减小，∴0k <，∴满足题意的为2y x =--；故选B ．4．D【分析】此题主要考查了坐标与图形的性质，正确把握点的坐标特点是解题关键．直接利用坐标轴上点的坐标特点以及平行于坐标轴的直线上点的关系分别分析得出答案．【详解】解：已知点(2,1)A -，AB y ∥轴，且4AB =，则B 点的坐标为(2,3)或(2,5)-，故选：D 5．C【分析】本题考查最简二次根式的定义．根据最简二次根式的定义“（1）被开方数的因数是整数，因式是整式；（2）被开方数中不含能开得尽方的因数或因式”解题即可．【详解】解：A =不是最简二次根式，故此选项不符合题意；B =不是最简二次根式，故此选项不符合题意；CD =不是最简二次根式，故此选项不符合题意；故选：C ．6．A【分析】本题考查了一次函数图象上点的坐标特征，由102k =-<得到y 随x 的增大而减小，由1t t >-即可求解．【详解】解：Q 一次函数2x y b =--的102k =-<，y \随x 的增大而减小，1t t >-Q ，点1(,)t y ，2(1,)t y -在一次函数2xy b =--的图象上，12y y \<，故选：A ．7．D【分析】剩余量=原有油量-工作时间内耗油量，把相关数值代入即可．【详解】由题意得，每小时耗油5升，则工作x 时内耗油量为5x\剩余油量405y x =-故选D ．【点睛】本题考查了根据实际问题列一次函数关系式，得到剩余油量的关系式是解题的关键．8．C【分析】本题考查了各象限内点的坐标的符号特征，记住各象限内点的坐标的符号是解决的关键，四个象限的符号特点分别是：第一象限(,)++；第二象限(,)-+；第三象限(,)--；第四象限(,)+-，根据第一象限内点的横坐标与纵坐标都是正数求出a 、b ，再根据各象限内点的坐标特征解答．【详解】解：Q 点(,)P a b 在第一象限，0a \>，0b >，0a \-<，0b -<，\点(,)Q a b --在第三象限．故选：C ．9．B【分析】依据轴对称的性质解答．【详解】A.AD 的连线被MN 垂直平分，故正确；B.AB 与DF 不是对应线段，不一定平行，故错误；C.△ABC 与△DEF 关于直线MN 轴对称，则△ABC ≌△DEF ，AB=DE ，正确；D.△ABC 与△DEF 关于直线MN 轴对称，则△ABC ≌△DEF ，∠B=∠E ，正确．故选B ．【点睛】本题考查了轴对称的性质：①如果两个图形关于某直线对称，那么这两个图形全等；②如果两个图形关于某直线对称，那么对应线段或者平行，或者共线，或者相交于对称轴上一点；③如果两个图形关于某直线对称，那么对称轴是对应点连线的垂直平分线．10．D【分析】本题考查了以弦图为背景的计算，由题意先得到2225a b +=，()24a b -=，再结合()()()22222a b a b a b +=+--，从而可得答案；熟记完全平方公式的变形是解本题的关键．【详解】解：由题意可知：大正方形的面积2225a b =+=，小正方形的面积为：()24a b -=，∴()()()2222250446a b a b a b +=+--=-=，故选：D ．11．(5，3)【分析】利用关于y 轴的对称点的坐标特点进行解答即可．【详解】解：点P （﹣5，3）关于y 轴的对称点的坐标为（5，3）．故答案为：（5，3）．【点睛】此题主要考查了关于y 轴的对称点的坐标，关键是掌握关于y 轴的对称点的坐标特点：横坐标互为相反数，纵坐标不变．12．-【分析】先根据题意得到00x y <<，，再利用二次根式的性质化简即可．【详解】解：∵12xy =，8x y +=-，∴00x y <<，，∴===-=-=-故答案为：-【点睛】本题主要考查了二次根式的化简，正确得到00x y <<，是解题的关键．13．23x -+##32x-【分析】根据互相平行的直线的解析式的一次项系数的值相等确定出k ，根据与y 轴交于点()03，求出b ，即可得解．【详解】解：∵直线y kx b =+平行于直线2y x =-，∴2k =-，∵与y 轴交于点()03，，∴3b =，∴此函数的解析式为23y x =-+．故答案为：23x -+．【点睛】此题考查两条直线相交或平行问题，解题关键在于确定k 的值．14．1【分析】本题考查了平方根的定义．一个正数有两个平方根，这两个平方根互为相反数，零的平方根是零，负数没有平方根．由“一个正数的两个平方根互为相反数”得到0322a a +++=，据此可以求得a 的值，即可求解．【详解】解：根据题意，得0322a a +++=，即44a =-，解得，1a =-,∴()22211a +==，\这个数为1故答案是：1．15．5cm【分析】本题考查勾股定理的应用-最短路径问题，解答的关键是利用分类讨论思想，能把长方形的侧面展开成平面图形，利用勾股定理求出对角线的长度．【详解】根据题意，分三种情况：①展开前面和右面，如图，则5AB ==；②展开前面和上面，如图，则AB ==③展开左面和上面，如图，则AB ==Q 5<<\从点A 爬到点B 的最短路程是5cm ，故选：5cm ．16．()1012,0【分析】本题考查了点的坐标规律型问题，解题的关键是根据点的坐标的变化得到规律，利用得到的规律解题．动点在平面直角坐标系中按向上，向右，向下，向右的方向不断地移动，只要求出前几个坐标，根据规律找坐标即可．【详解】解：根据题意可知，()10,1A ，()21,1A ，()31,0A ，()42,0A ，()52,1A ，()63,1A ，()73,0A ，()84,0A ，……，每4个点一循环，∵20244506¸=，\点2024A 在4A ，8A ，12A 的位置上，纵坐标为0，横坐标为序号的一半，即202421012¸=，∴点2024A 的坐标()1012,0，故答案为：()1012,0．17．(1)112x =，22x =-；(2)13x =．【分析】（1）利用平方根的定义即可求解；（2）移项后，利用立方根的定义即可求解；本题考查了平方根和立方根的应用，掌握平方根和立方根的定义是解题的关键．【详解】（1）解：∵2325416x æö+=ç÷èø，∴3544x +=±，∴112x =，22x =-；（2）解：∵()383109x -+=，∴()38127x -=-，∴213x -=-，∴13x =．18．24平方米【分析】本题考查了勾股定理、勾股定理的逆定理的应用，连接AC ，先利用勾股定理求出AC ，再根据勾股定理的逆定理判定ABC V 是直角三角形，那么ABC V 的面积减去ACD V 的面积就是所求的面积．【详解】解：如图，连接AC ．在ACD V 中，4AD =Q 米，3CD =米，90ADC Ð=°，∴5AC ==米，又22222251213AC BC AB +=+==Q ，∴ABC V 是直角三角形，\这块地的面积ABC ACD S S =-V V 11512342422=´´-´´=（平方米）．19．10=V AFC S【详解】在长方形ABCD 中，∵AB ∥CD ，∴∠BAC ＝∠DCA ．又由折叠的性质可得∠DCA ＝∠FCA ．∴∠BAC ＝∠FCA ．∴AF ＝CF ．设AF ＝x ，则BF ＝AB －AF ＝8－x ．在Rt △BCF 中，BC ＝4，BF ＝8－x ，CF ＝x ，∴42＋(8－x)2＝x 2．解得x ＝5．∴11·541022AFC S AF BC ==´´=V ．20．(1)4cm ，26cm (2)2.4cm【分析】（1）根据勾股定理求得AC 的长；利用三角形的面积公式可求出ABC V 的面积；（2）再根据三角形的面积公式是一定值求得CD 即可．【详解】（1）解：在Rt ABC △中，90ACB Ð=°，5cm AB =，3cm BC =，∴()4cm AC ==，∴()211436cm 22ABC S AC BC =×=´´=△．（2）解：CD AB ^Q ，1122ABC S AC BC AB CD \=×=×V ，()43 2.4cm 5AC BC CD AB ×´\===．【点睛】此题考查的是勾股定理，熟知在任何一个直角三角形中，两条直角边长的平方之和一定等于斜边长的平方是解题的关键．21．(1)(2,0)P (2)(5,1)P -【分析】本题运用了平面直角坐标系中点的坐标特征来解决问题，关键是用好数形结合的数学思想．（1）根据x 轴上的点纵坐标为0解答即可；（2）利用PQ y ∥轴时横坐标相等进行解答即可．【详解】（1）Q 点P 在x 轴上，20a \+=，2a \=-，342a \--=，(2,0)P \（2）(5,8)Q Q ，且PQ y ∥轴，345a \--=，3a =-，21a \+=-，(5,1)P \-22．（1）y=43x+53；（2）C 点坐标为（54-，0），D 点坐标为（0，53），（3）52．【详解】分析：（1）先把A 点和B 点坐标代入y=kx+b 得到关于k 、b 的方程组，解方程组得到k 、b 的值，从而得到一次函数的解析式；（2）令x=0，y=0，代入y=43x+53即可确定C 、D 点坐标；（3）根据三角形面积公式和△AOB 的面积=S △AOD +S △BOD 进行计算即可．详解：（1）把A （-2，-1），B （1，3）代入y=kx+b 得213k b k b -+-ìí+î＝＝，解得，4353k b ìïïíïïî＝＝．所以一次函数解析式为y=43x+53；（2）令y=0，则0=43x+53，解得x=-54，所以C 点的坐标为（-54，0），把x=0代入y=43x+53得y=53，所以D 点坐标为（0，53），（3）△AOB 的面积=S △AOD +S △BOD =12×53×2+12×53×1=52．点睛：本题考查了待定系数法求一次函数解析式：①先设出函数的一般形式，如求一次函数的解析式时，先设y=kx+b ；②将自变量x 的值及与它对应的函数值y 的值代入所设的解析式，得到关于待定系数的方程或方程组；③解方程或方程组，求出待定系数的值，进而写出函数解析式．23．(1)15(2)11902125y x x æö=+££ç÷èø(3)没有超速【分析】本题考查了一次函数的应用、一次函数的图像、求函数解析式等知识点，掌握待定系数法求函数关系式是解题的关键．（1）由题意可得：当以平均时速为100/千米时行驶时，a 小时路程为20千米，据此即可解答；（2）利用待定系数法求解即可；（3）求出先匀速行驶112小时的速度，据此即可解答．【详解】（1）解：由题意可得：10020a =，解得：15a =．故答案为：15．（2）解：设当11125x ££时，y 与x 之间的函数关系式为y =kx +b (k ≠0)，则：11761205k b k b ì+=ïïíï+=ïî，解得：902k b =ìí=î，∴11902125y x x æö=+££ç÷èø．（3）解：当112x =时，19029.512y =´+=，∴先匀速行驶112小时的速度为：19.5114/12¸=（千米时），∵114120＜，∴辆汽车减速前没有超速．24．(1)m 的值为3，n 的值为2(2)()()20200200200400x x y x x ì£ï=í+£ïî＜＜(3)0.5【分析】（1）根据表格数据列出方程组，解方程组即可求出m 、n 的值；（2）分两种情况讨论，根据题意，结合“总利润=每支利润´数量”分别列出代数式即可求出y 与x 的函数关系式，注意写出自变量x 的取值范围；（3）设降价后获得肉串的总利润为z 元，令W z y =-，先根据题意列出z 关于x 的关系式，再写出W 关于x 的关系式，根据函数增减性和题中数量关系即可求出结果．【详解】（1）解：根据表格可得：30004000170004000300018000m n m n +=ìí+=î，解得：32m n =ìí=î，∴m 的值为3，n 的值为2；（2）当0200x <£时，店主获得海鲜串的总利润()532y x x =-=；当200400x <£时，店主获得海鲜串的总利润()()()5320050.83200200y x x =-´+´--=+；∴()()20200200200400x x y x x ì£ï=í+£ïî＜＜；（3）设降价后获得肉串的总利润为z 元，令W z y =-，∵200400x <£，∴()()()3.521000 1.515001000z a x a x a =---=-+-，∴()2.513001000W z y a x a =-=-+-，∵01a <<，∴ 2.50a -<，∴W 随x 的增大而减小，当400x =时，W 的值最小，由题意可得：z y ³，∴0W ³，即()2.5400130010000a a -´+-³，解得：0.5a £，∴a 的最大值是0.5．【点睛】本题主要考查一次函数的应用，熟练掌握一次函数的性质和应用以及二元一次方程组的应用是解决问题的关键．25．(1)6y x =-+(2)()3,3或()9,3-(3)点K 的位置不发生变化，其坐标为()0,6【分析】（1）根据坐标轴上点坐标特征求出B 的坐标，然后利用待定系数法求解即可；（2）根据三角形面积求出3D y =，据此求解即可；（3）如图所示，过点Q 作QH x ^轴于H ，根据一线三垂直模型证明BOP PHQ △≌△，得到PH OB =，OP QH =，进而证明AH QH =，得到AHQ V 是等腰直角三角形，则45OAK QAH Ð=Ð=°，由此可证明OAK V 为等腰直角三角形即可求出结论．【详解】（1）解：当0x =时，6y =，∴()0,6B ，设直线AB 的解析式为y kx b =+，把()6,0A ，()0,6B 代入，得606k b b +=ìí=î，解得：16k b =-ìí=î，∴直线AB 的解析式为6y x =-+．（2）解：当0y =时，则360x +=，解得2x =-，∴C (−2,0)，∵()0,6B ，C (−2,0)，∴6OB =，2OC =，∵()6,0A ，∴6OA =，∴8AC OA OC =+=，∴11682422ABC S AC OB =×=´´=△，∵11241222SCD ABC S S ==´=V V ，∴1122D AC y ×=∴3D y =∴当3D y =时，63x -+=，解得3x =，即点D 的坐标为()3,3；当3D y =-时，63x -+=-，解得9x =，即点D 的坐标为()9,3-；综上所述，存在点D 的坐标为()3,3或()9,3-使得12ACD ABC S S =V V ．（3）解：点K 的位置不发生变化，其坐标为()0,6-，理由如下：如图所示，过点Q 作QH x ^轴于H ，∵BPQ V 是等腰直角三角形，∴90BPQ Ð=°，BP QP =，∴90OPB HPQ +=°∠∠，又∵90OPB OBP Ð+Ð=°，∴OBP HPQ Ð=Ð，又∵90BOP PHQ ==°∠∠，∴()AAS BOP PHQ V V ≌，∴PH OB =，OP QH =，∴PH PO BO OP +=+，即OA AH BO QH +=+，又∵OA OB =，∴AH QH =，∴AHQ V 是等腰直角三角形，∴45QAH OAK Ð=Ð=°，∴OAK V 为等腰直角三角形，∴6OK OA ==，∴()0,6K -．【点睛】本题主要考查了一次函数的综合，求一次函数解析式，全等三角形的性质与判定，等腰三角形的性质与判定等等，解题的关键是学会添加常用辅助线，构造全等三角形解决问题．。
北师大版英语初一上学期期中试卷与参考答案(2024年)
2024年北师大版英语初一上学期期中模拟试卷与参考答案一、听力部分（本大题有20小题，每小题1分，共20分）1、听力材料：A. Hello, are you free this evening?B. No, I have a basketball game.C. Yes, I’m free. Let’s go to the movie.Question: What does the speaker in B mean?A. He is free this evening.B. He has a basketball game this evening.C. He wants to go to the movie.Answer: BExplanation: The speaker in B uses the phrase “I have a basketball game” to indicate that he is occupied with a basketball game that evening, which means he is not free.2、听力材料：A. I usually go to school by bus, but today I walked.B. That’s great! Walking is good for your health.C. I agree. It’s also a good way to enjoy the scenery.Question: What does the speaker in B suggest?A. Taking the bus is the best way to go to school.B. Walking is a good alternative to taking the bus.C. Walking is only good if you can enjoy the scenery.Answer: BExplanation: The speaker in B responds positively to the idea of walking to school by saying “That’s great! Walking is good for your health.” This suggests that they agree walking is a good option, especially if it’s beneficial for health.3、Listen to the following conversation and choose the best answer to the question you hear.A. The man is going to the library to study.B. The woman is borrowing a book from the library.C. The man needs help finding a book.D. The woman is returning a book to the library.Answer: AExplanation: The conversation implies that the man is planning to go to the library, which suggests he is going to study there.4、Listen to a short passage about the importance of exercise and answer the question.Question: According to the passage, what is one of the benefits of regular exercise?A. It helps improve sleep quality.B. It can lead to weight loss.C. It increases the risk of injury.D. It is only beneficial for athletes.Answer: AExplanation: The passage mentions that regular exercise can help improve sleep quality as one of its benefits.5、Listen to the dialogue and choose the best answer for each question.A. What’s the weather like today?B. How is your brother?C. What’s the time now?D. What are you going to do this weekend?Answer: BExplanation: The speaker asks about the listener’s brother, indicating they are inquiring about someone’s well-being.6、Listen to the passage about a famous landmark and answer the question. Question: Which of the following is NOT mentioned in the passage about the landmark?A. The landmark is located in a big city.B. The landmark is a historical site.C. The landmark is a popular tourist destination.D. The landmark is known for its modern architecture.Answer: DExplanation: The passage discusses the landmark’s historical significance, its popularity among tourists, and its location in a big city, but it does not mention anything about modern architecture.7、Listen to the conversation and choose the best answer to the question you hear.W: Hi, John. How was your science project fair today?M: It was great! I showed my model of a solar-powered car. A lot of people were interested in it.Q: What did John show at the science project fair?A) A paintingB) A solar-powered carC) A storybookD) A musical instrumentAnswer: B) A solar-powered carExplanation: The listener will hear John mention, “I showed my model of a solar-powered car,” which indicates that he presented a solar-powered car at the fair.8、Listen to the dialogue and answer the question you hear.M: Have you heard about the new ice cream shop that opened up in town? They have a fla vor called “Mango Paradise.”W: Oh, really? I love mango! I can’t wait to try it. Do you know if theyhave any discounts?M: I think they’re offering a 10% discount for the first week. It’s a great deal!Q: What is the new ice cream shop offering?A) A 20% discountB) A 10% discount for the first weekC) A free ice cream for the first 50 customersD) A buy one get one free offerAnswer: B) A 10% discount for the first weekExplanation: The listener will hear the part of the dialogue where the man says, “I think they’re offering a 10% discount for the first week,” which directly answers the question.9.You hear a conversation between two students discussing their weekend plans.A. Student 1: I’m planning to go hiking with my friends this weekend.B. Student 2: That sounds great! What will you be doing?A. Student 1: We’re also thinking about having a picnic at the lake.B. Student 2: How fun! I should join you.Question: What activity does Student 1 plan to do with their friends?Answer: HikingExplanation: Student 1 mentions “I’m planning to go hiking with my friends this weekend,” which indicates the planned activity.10.You hear a teacher explaining a new vocabulary word to the class.Teacher: Today we’re going to learn a new word. The word is “amazing.”It means something that is very good or impressive.Student 1: Can you give us an example?Teacher: Sure! For instance, the performance was absolutely amazing.Student 2: I see. So, “amazing” is like saying something is really good?Teacher: Exactly. It’s a way to express strong approval or admiration.Question: What is the meaning of the word “amazing” according to the teacher?Answer: Very good or impressiveExplanation: The teacher defines “amazing” as something that is very good or impressive, providin g an example to illustrate the word’s meaning.11.You are listening to a conversation between a student and a teacher ina school library.Student: Excuse me, Professor Smith. I was wondering if you could help me find some books about ancient history.Teac her: Of course, I’d be happy to. The books are located on the second floor, in the history section. Do you have any specific time period in mind? Student: Yes, I’m interested in the Roman Empire.Teacher: Then you should look for books with titles like “Th e Rise and Fall of the Roman Empire” or “The Roman Empire: A History.”Question: What is the student interested in?A) Ancient historyB) Modern historyC) ScienceD) LiteratureAnswer: A) Ancient historyExplanation: The student explicitly mentions that they are interested in ancient history, specifically the Roman Empire, which is why the teacher suggests looking for books in the history section.12.You are listening to a dialogue between two friends discussing their weekend plans.Friend 1: Hey, are you free this weekend?Friend 2: Yes, I am. What do you have in mind?Friend 1: Well, I was thinking of going hiking in the mountains. Do you want to join me?Friend 2: That sounds amazing! I love hiking. Let’s meet at the trailhead at 8 AM on Saturday morning.Question: What are the friends planning to do this weekend?A) Go to the beachB) Go hikingC) Visit a museumD) Watch a movieAnswer: B) Go hikingExplanation: Friend 1 suggests going hiking in the mountains, and Friend 2 responds positively, expressing their love for hiking. This confirms that their plan for the weekend is to go hiking.13、What does the boy want to do after school?A. Play basketball.B. Go to the library.C. Watch TV.Answer: A. Play basketball.Explanation: In the conversation, the boy mentions he wants to join his friends for a game of basketball after school.14、Where did the girl say she lost her keys?A. At home.B. In the classroom.C. At the supermarket.Answer: C. At the supermarket.Explanation: The girl clearly states in the dialogue that she thinks she left her keys at the supermarket while doing her shopping earlier today.15.W: Have you finished your homework yet, Tom?M: Not yet. I’m still working on the math problems.Q: What is Tom doing right now?A: He is working on his math problems.解析：此题考查现在进行时。