初三下期8单元测试(A卷)

Unit 8达标检测卷I.单项选择(每小题1分，共15分)( )1. Don't make any when you are in the library.A. decisionB. friendsC.rulesD. noise( )2. -Listen! Peter is singing in the classroom!-It be him. He has gone back to his hometown.A.mustB. mustn'tC. may notD. can’t( )3 -Is there who can help me?-I think nobody can.A. anybodyB. nobodyC.everyoneD. none( )4. We should do something to prevent these people the environment. A. to polluting B. from polluting C. polluted D. to pollute( )5. Take some rest after lunch and you won't feel in the afternoon.A. happyB. worriedC. lonelyD. sleepy( )6. You’ve helped me so much. I would like to my appreciation and thanks to you all.A. expressB.refuseC. writeD.get( ).7.-Can you tell us action was reported on TV yesterday?-Liu Yang's. She is the first Chinese woman astronaut.A.howB. whatC. whoseD. which ( )8.-Whose T-shirt is this? Is it Tom’s?-I saw him wear it yesterday.A. must belong to himB. can't belong to himC. is able to belong to himD. mustn't belong to him( )9. -Shall we have our picnic tomorrow?- it doesn’t rain.A. UntilB. WhileC.whose D If( )10. His family are worried about him because they haven’t letters from him for a long time.A. acceptedB.receivedC. writtenD. collected( )11.- the young the old are getting interested in Wechat(微信).-They can communicate more freely.A. Between;andB. Either;orC. Neither; norD. Not only; but also ( )12.-Where's David?-He be in the playground because he is fond of playing basketball. A.will B. may C. can't D. mustn't( )13. -How do you like the program The V oice of China?- amazing program it is! Many people like to watch it.A. WhatB. HowC. What anD. How( )14. It seems that the aged people the H7N9 more easily from the recent cases.A. pick upB. mix upC. set upD. use up( )15. -What a fine day! Shall we go for a picnic?- .But we need to be home before six o'clock for the football match.A. Have a good timeB. Pardon meC. That's greatD. You're rightⅡ.完形填空(每小题2分，共20分)I was feeling a little blue because my mother had lost her job.One day, while I was 16 on the street, I heard piano music and singing rising above the noise of the people. I walked more slowly to 17 where it was coming from. Then I saw a young lady sitting at a piano.She was singing songs about love, 18 yourself and keeping on trying. The way she was singing made me a little comfortable. I stood there 19 , watching her playing on such a crowded New York square. I thought that she must be 20 enough to perform in front of so many people.She noticed me. I walked over and told her how good her 21 sounded."Thank you, " she said.“I have been going through a hard time recently, 22 you’ve made me hopeful again. "I said to her.“I’m glad that I could help, "she replied. "Why are you so 23 ?”“ Well，my mom has lost her job，and I’m not so sure what to do…”“Did you notice the 24 you were walking? Your head was down. " she said."Don’t be upset, because 25 comes in different ways and if your head is down, you might not see it. You should smile more…lift your head up.”I smiled a little wider, realizing that no difficulties could stop me from going on. ( )16. A. driving B.riding C. running D. Walking( )17.A. find out B. send out C. take out D. get out( )18. A. dressing B. believing C. hurting D. losing( )19. A. nervously B. rudely C.angrily D. quietly( )20.A.brave B.shy C.bored D. honest( )21. A. advice B.idea C. music D. interest( )22. A.or B.but C.so D.and( )23. A. dirty B. busy C.sad zy( ) 24.A.way B.time C.reason D. station( )25. A. opportunity B.health C.pain D. lifeⅢ.阅读理解(每小题2分，共20分)AOur new neighbors are the Browns. They have two children, a boy and a girl. The boy is Jack and the girl is Alice. Jack is 11, and he is one year older than me. Alice and my sister Nancy are 8 years old.At weekends, Nancy and I like to go to play with Alice and Jack. Both Jack and I really enjoy playing computer games. Sometimes the girls join us, but the games theyenjoy are different from the ones we like.There is a big park near our house. Sometimes, when the weather is fine, the four of us will go for bike there. We often stop at the huge playground to have some fun. Jack and I like to play basketball, but the girls prefer to sing and dance.Our families often have dinner together. On some days, they come over to our house and on other days, we go over to theirs. Mr Brown and his wife cook really well.Nancy and I are very glad to have the Browns next door. It's great to have friends living so near.( )26. Who are the writer's new neighbors?A. A family of three.B. The BrowsC. Jack and Nancy.D. Alice and Nancy( )27. How old is Alice?A. 8B. 9C.10D.11( )28. The girls prefer to at the playground in the park.A. listen to musicB. play basketballC. sing and danceD. play computer games( )29. Where do the two families have dinner together?A. At a park nearby.B. At a restaurant.C. In a forest.D. At their houses.( )30. The writer thinks it's to be friends with the new neighbors.A. boringB. greatC. difficultD. safeBTwo children stood outside the door with old coats. "Any old papers, lady? "asked one of them.I was busy. I wanted to say no, but I saw that their shoes had holes in them and they were wet. "Come in and I'll make you a cup of hot tea. "They came in, saying nothing. Their shoes left prints on the floor.I gave them tea and bread to protect them from the cold outside. Then I went back to the kitchen and started my housework again.The silence in the living room surprised me. I looked in.The girl held the empty cup in her hands, looking at it. The boy asked me in a low voice. " Lady, are you rich?”Am I rich? Oh, no! I looked at the old things in my room.The girl put her cup back in its saucer(茶碟) carefully and said，“ Your cups match(相配) your saucers.”Then they left, holding their papers against the wind. They hadn't said thank you. They didn’t need to. They had done more than that. They had reminded me that I had so much to thank for. The blue cups and saucers were simple, but they matched. The potatoes and meat before me, the roof over my head, my husband with a jobI moved the chairs back from the fire and cleaned the living room. The prints of their sma ill wet on my floor. I let them be. I wanted them there to remind me how rich I was()31. The writer let the two children in toB sell them some old papersA serve them tea and foodD offer them some warm clotheC, show them how rich she was第3九年量全一出天语( )32. Why did the boy and the girl think the writer was rich?B The room was quite largeA. He liked the saucerD. She was kind and ready to giveC. The cups matched the saucers()33. We can learn from the passage thatB the writer's husband was diedA. the writer felt everything matchedC. the children talked happily in the roomD. the children thanked a lot before leaving034. What does the underlined sentence I let them be. " mean?B. I left them there.A. I loved them.D I didn't want to see them again.C I didn't like them. ()35. According to the passage, whether you are rich depends onA what job you are doingB what you haveC how much money you haveD. how you feel about your lifeⅣ、短文填空(每小题2分，共20分)根据短文内容及首字母提示，在空白处填入一个适当的单词。

9A Unit 8 Detective stories单元测试卷（D）班级：________ 姓名:__________ 得分: ___________ ―、听力测试(10分)A)根据你所听到的对话，选择正确答案.( )1. What does the burglar look like?A. He is short.B. He has small eyes.C. He is tall and strong, and has short brown hair.( )2. Wh en is Jane’s birthday?A. 8th August.B. 18th August.C. 28th August. ( )3. What does the man suggest?A. Wearing a skirt.B. Wearing trousers.C. Wearing jeans. ( )4. How old is Jack?A；10 years old. B. 11 years old. C. 9 years old.( )5. When Will Susan arrive?A. At 4：30.B. At 4：45.C. At 5：20.B)根据你所听到的对话，选择正确答案( )6. Why can’t the girl sleep well?A. Because she studies maths too hard.B. Because she spends much time on TV.C. Because she has too much for dinner.( )7. What does the doctor tell her to do?A. Go to bed early.B. Eat more fruit.C. Relax herself. C)根据你所听到的短文内容，诜择正确答案，完成信息记录表( )8. A. arm B. leg C. eye( )9. A. sports B. running C. riding( )10.A. the USA B. Asia C. the world二、单项填空(20分)( )1. If you grow up in_____ large family, you are more likely to develop _____ ability to get on well with _____ others.A. /; an；theB. a; the；/C. the；an；theD. a；the；the ( )2. —Can children under the age of 18 drive in our country?—No. According to the law, they ______ .A. mustn’tB. may notC. needn’tD. shouldn’t ( )3. There is only one old book with a few pages _____ on his desk.A. missedB. goingC. missingD. losing ( )4. People were surprised that the famous singer was ______ arrest ______ murder.A. on; forB. under；forC. under；withD. in; for ( )5. It was a real race______ time to get the project done. Luckily, we made it.A. overB. byC. forD. against ( )6. It is said that the victim was attacked ________ a gun ______a short, fat man.A. by；withB. with；byC. for；toD. to；for ( )7；The couple______ at home at this time yesterday.A. heard singingB. heard to singC. were heard singingD. was heard to sing( )8. The man was under arrest _____ some things _____the supermarket.A. to steal；inB. for stealing；withC. with stealing；inD. for stealing；from( )9. The Greens have decided to go_____ in China to spend the Holiday.A. somewhere warmB. warm somewhereC. to anywhere warmD. to somewhere warm( )10. This is the best hotel ______ I know in the city.A. whereB. whichC. thatD. it( )11. Six years h as passed, but we Chinese people still remember those exciting days _____ we spent during the Beijing 2008 Olympic Games.A. thatB. whatC. whoD. when( )12. —Do you know everybody_____ came to the party?一No，I don’t know the one ____ you had a long talk with.A. /；whomB. which；thatC. that；whichD. who；/ ( )13. To my great surprise, the famous athlete’s story _____ differently in the newspapers.A. was reportedB. reportedC. was reportingD. reports ( )14. The factory _____we visited yesterday was the one_____ I once worked in.A. where；/B. /；whereC. /；thatD. where；which ( )15. I don’t suppose anyone will recommend him for this year’s Youth Award, _______ ?A. do IB. don’t I C w on’t they D. will they ( )16. The first thing _______ my brother is going to do this afternoon is to write a letter.A. whyB. whichC. whatD. that( )17. The visitor told a very ______story about what he did for a ______in Africa.A. lively；livingB. lively；lifeC. living；livingD. alive；live ( )18. After the flood, the number of the lost people______ was changing all the time worried us a lot.A. whoB. /C. whomD. which ( )19.—Peter, is there anything else you want to know about China?—Yes, I am still wondering _______.A. how is Chinese paper cut madeB. how was the Great Wall built in ancient timesC. why the Chinese people like to play the dragon danceD. why do the Chinese people eat rice dumplings at Dragon Boat Festival( )20. —It is a shame to ask you to help me again, but..—________. You have really done your best and I am free.A. That’s rightB. Don’t be sillyC. No problemD. No way三、完形填空（10分）A few years ago, as I saw a young man stealing something in the street, I told him there was so much he could do in his life and that he should have a goal about who he wanted to become when he grew up. I told him that it was still not too __1__ to do it.At that moment he __2__ back to me，telling me to shut up.“Miss，”he said, “You don’t know what you’re talking about. In fact，there’s no __3__ out for me.” He told me his mom was never able to really __4__ for him and that he had to do whatever he could just to eat.I grew __5__ as I listened to his words. But then I had an idea. “We all had a dream of what we wanted to become in life. What is your dream? What goals (目标）do you want to __6__? Most importantly, what steps are you taking to move closer in __7__ your dreams come true?” I asked. “I want you to __8__ your goals down on paper today. Think about your plan and where you expect to see yourself in five or ten years. Then share what you’re written with me __9__ sharing your goals is the first step to get your dreams started.That day he set a __10__ . He promised he would become a doctor, and work hard through the long, difficult journey to realize that dream.Finally he is not only my friend now, but also a famous doctor.( )1. A. young B. late C. close D. busy( )2. A. kicked B. shouted C. threw D. waved ( )3. A. way B. road C. street D. path( )4. A. care B. come C. look D. wait( )5. A. cold B. heavy C. quiet D. wild( )6. A. develop B. enjoy C. allow D. achieve ( ) 7. A. getting B. putting C. working D. making ( )8. A. turn B. bring C. write D. cut( )9. A. although B. until C. why D. because ( )10.A. note B. dream C. goal D. living四、阅读理解（20分）AHow quickly can you count from one to ten? Do you use ten different words to do it? Can you do it in English, or do you have to use your first languages? Do you count on your fingers? Many people think that numbers and math are the same all over the world. But scientists have discovered that it is not true.People in different parts of the world use different ways to count on their fingers. In the United States，people begin counting with their first fingers which they extend (伸出）.They then extend the rest of their fingers and finally the thumb (拇指）to count to five. Then they repeat this with the other hand to get to ten. In China, people count by using different finger positions. In this way, a Chinese person can easily count to ten on only one hand.Besides ways of finger counting，scientists have found that cultures and languages are also different when it comes to numbers. Some languages have only a few words for numbers, and others have no words for numbers. A group of scientists studied aboriginal (土著的）people in Australia. These people don’t have hand movements to stand for numbers. They don’t even have words for numbers. However, they are still able to understand different ideas about numbers.In a similar study，researchers from the Massachusetts Institute of Technology discovered that people of the Piraha tribe(部落) in northwestern Brazil don’t have words for numbers such as“one”or “three”. They are not able to say “five trees”or “ten trees”but can say “some trees”，“more trees”or “many trees”. Professor Edward Gibson said that most people believe that everyone knows how to count, “but here is a group that does not count. They could learn, but isn’t not useful in their culture, so they’re never picked it up.Although all humans are able to understand quantities (数量），not all languages have numbers and not all people use counting. Number words in a certain language are a result of people needing numbers in their daily lives. Now we know that people have different ideas about numbers and math, too.( )1. The writer begins with the four questions in order toA. make a surveyB. interest readersC. tell a storyD. solve math problems( )2. What do we learn from the difference in finger counting between the U. S. and China?A. People from China count much faster than people from the U. S.B. P eople from China need two hands to count from one to ten.C. People of different cultures may use different ways of finger counting.D. P eople of different cultures use the same way of finger counting.( )3. Which of the following is true about aboriginal Australians?A. T hey have only a few words for numbers.B. T hey have hand movements to stand for numbers.C. T hey can only count to five on their fingers.D. T hey can understand different ideas about numbers.( )4. The study of the Piraha tribe shows that________.A. p eople all over the world know how to countB. p eople of the tribe have words for numbersC. s ome groups of people are not smart enough to countD. c ounting is not useful in the culture of the tribe( )5. What is the main idea of the passage?A. P eople from different cultures have different ideas about numbers and math.B. C hinese people can count more easily on their fingers than Americans.C. I n some aboriginal culture, peop le don’t even know how to count.D. S ome languages don’t have number words because people don’t need numbers.BMy name is Sam. I joined a club called "passing help" last month. Now let me tell you why I joined it.One evening this May, on my way home my old car broken down(出故障). It was 25 miles from my home. I wanted to get a ride(搭便车), but there was no car. It was also hard to take a taxi. I decided to take a bus home. I went to a bus stop nearby.After a while, a bus came, but it did not go to my town. the bus driver was a young woman. She was kind and she told me which bus I should take. I waited there for about thirty minutes, but no bus came. At last a car came to me and a woman came out of the car. She was just the bus driver."When I reached the bus station, l got to know that the bus to your town couldn't come, so I returned here. I just can't leave you here, " she said. "Get in my car and I will take you back to your home.”“It is a long way, ”I said.“Come on, sir, "she said. "Let's go."On the way she told me a story. A few days ago, there wasn't gas（汽油）in her car. An old man drove her up to a gas station and then back to her car.When we got to my home, I wanted to give her some money to thank her, but she didn't accept it. “I only want to help others and do something nice for somebody. Pass it along, ”she said. ( )6. What happened to Sam one evening this May?A．He lost his way.B．His car broken down.C. He was hurt in an accident.D. He couldn't reach the gas station.( )7. Sam didn't think of going home_______ that evening.A. by trainB. by busC. by carD. by taxi( )8. From the passage, we know that the young woman was_______.A. a club bossB. a taxi driverC. a bus driverD. a gas station worker( )9. The young woman wanted Sam to_______.A．give her some moneyB．get on her busC．take her to her houseD. help others just as she did( )10. The best title of the passage is“_______”．A. A kind old manB. Getting a rideC. Passing helpD. A broken car五、单词拼写（10分）1. We should always behave politely every______ (单个的）day.2. The baby can’t say any word now so we have to______ (猜测)what she wants.3. He is breathing______ (沉重地）after the running race.4. I ______ (关）my office door after the meeting ended.5. She is the ______ (唯一的）woman who attended the weekly meeting.6. My gloves have been ______ (丢失的）for a long time.7. My______ (不整洁的）room really made my mother crazy.8. —What do you think of Lucy? 一To tell you the______，I don’t like her at all. She istoo proud.9. 一My house was ______ into last night. —Is anything gone?10. 一I saw you running down the street last night. Where were you going?一Oh，I was in a ______ to my mum5s home. She fell to the floor by accident.六、句子翻译(10分）1. 我想知道你与新同学相处得如何。

单元综合测试(A卷)Test for Unit 3 of 8B一、根据句意和汉语注释,写出单词的正确形式1．You just need to click on this icon if you want to ________ (打印) this letter.2．We paid a local ________ (导游) to get us across the mountains last weekend.3．He thought for a while and said, “This is g oing to be a ________ (巨大的) problem for us.”4．—What is the ________ (对立的人或物) of heavy?—Light.5．The frog was too tired and it rested at the ________ (底部) of the well.6．—Have you ever been to ________ (英格兰) before?—Yes, I have been there twice.7．Do you know when the ________ (国际的) meeting will be held in Shanghai?8．We can usually type (打字) words into the computer with a ________ (键盘).9．—What do you think of this TV ________ (节目)? —Not bad, I think.10．In the UK, people use ________ (英镑) when they do some shopping.二、词形变化1．The People's Hospital lies in the ________ (south) part of our town.2．After a few minutes, our eyes got used to the ________ (dark) and we were not afraid any more. 3．We all enjoyed the famous Broadway ________ (music) Cats very much last night.4．At the late ________ (twenty) century, they built a bridge over the wide river.5．Germany is one of the biggest ________ (Europe) countries.6．At the beginning of each English class, we must do the ________ (day) report.7．________ (Australia) people are always very friendly and helpful.8．I think the woman is the real ________ (rule) of this family, not the man.9．Of the two ________ (mouse), I like the green one better.10．Not only the young but also the old have begun to learn how to do word ________ (process) recently.三、单项填空1．Everyone except Tom and Jim ________ the film twice.A．sawB．have seenC．has seenD．are seen2．—Can you remember when Mr. Green left ________ city?—Sorry, I can't. I only remember it was ________ Monday.A．the; aB．the; theC．a; aD．a;/3．—Is Tom in the next room?—Well, it's hard to say. But I heard him ________ loudly when I passed by just now.A．speakB．to speakC．spokenD．speaking4．—He's finished his homework, ________ he?—Yes, he is watching TV now.A．doesn’tB．hasn’tC．wasn’tD．isn’t5．—How do you communicate with your foreign friends?—________ writing emails, of course.A．WithB．ByC．AtD．From6．________ the papers in his hand, our English teacher came into the classroom. A．HasB．HaveC．WithD．Hold7．Being not far ________the sea, London is famous ________ its fog.A．from; withB．from; forC．away; withD．away; for8．—When ________ your cousin his hometown?—He ________ for nearly two years.A．has, left ;has leftB．did, leave; has leftC．did, leave; has been awayD．has, left; has been away9．It took me one and a half hours ________ Zhenjiang this morning.A．arrivingB．getting toC．to get toD．to arrive10．________ people visited the village where Mo Yan was born after he got the prize. A．Thousands ofB．Thousand ofC．ThousandsD．Two thousand of11．More than 20 people ________ in traffic accidents ________ last May.A．have been dead; sinceB．died; sinceC．have died; forD．have been dead, for12．Mr. Smith ________ in Nanjing since ________ he to China years ago. A．worked; has movedB．has worked; has movedC．has worked; movedD．was working; moved13．—I left my keys in the room yesterday, so I had to get in ________ the window. A．inB．throughC．overD．to14．—How long has he worked on the farm?—________.A．Two years agoB．For years agoC．Since two yearsD．Since two years ago15．When you are home, please give me a call to let me know you ________ safely. A．arrivedB．have arrivedC．will arriveD．are arriving16．—When ________ you ________?—I ________ for two months.A．did, get married ;have got marriedB．have, got married; got marriedC．have, been married; have got marriedD．did, get married; have been married17．—Thanks for listening to my problem and giving me your advice, Amy.—_______.That’s what friends are for.A．My pleasureB．With pleasureC．Never mindD．It’s nice of you四、动词填空1．Don't make any noise. The baby ________ (sleep).2．I ________ (make) 20 copies (份) of this report already. How many do you want? 3．This is the second time that Alana ________ (visit) the Palace Museum.4．Helen always ________ (try) her best to do everything well when she was at school. 5．We are still discussing where ________ (gather) and when to start our show. 6．Last Sunday we went to the park and ________ (stay) there for over two hours. 7．Mary ________ (pick) some vegetables when I met her in the supermarket yesterday. 8．I'm sure Father ________ (buy) me some presents when he comes back from Beijing. 9．—Who ________ (design) the poster for this celebration?—Magee did.10．Till now, we still ________ (not know) much about other stars．11．Now the rain ________ (stop) already. Shall we go on playing football again? 12．________ (click) on this icon and you will get into another page.五、完成句子1．你曾梦想过环游世界吗?Have you ever__________________________________________?2．你介意帮我打开主机吗?Do you __________________________________________ for me?3．到现在为止,我已经看过五部戏剧了。

八单元测试卷下册一、选择题（每题2分，共20分）1. 下列哪项不是本单元学习的重点？A. 语法结构B. 词汇积累C. 阅读理解D. 体育活动答案：D2. 以下哪个词组与“经济危机”意思最接近？A. 经济繁荣B. 经济衰退C. 经济复苏D. 经济平衡答案：B3. 根据本单元内容，以下哪个句子使用了正确的时态？A. I am reading a book.B. I read a book.C. I will read a book.D. All of the above.答案：D4. 下列哪个选项不是本单元课文中提到的人物？A. 李明B. 张华C. 王丽D. 赵刚答案：D5. 本单元中，哪个词汇的用法与“improve”最相似？A. enhanceB. decreaseC. reduceD. diminish答案：A6. 以下哪个句子是正确的？A. The book is too difficult to understand it.B. The book is too difficult to understand.C. The book is difficult enough to understand.D. The book is difficult to understand it.答案：B7. 下列哪个选项是本单元课文中提到的地点？A. 长城B. 故宫C. 天安门D. 颐和园答案：C8. 根据本单元内容，以下哪个句子使用了正确的语态？A. The letter was written by him.B. He was written the letter.C. The letter was written him.D. He wrote the letter.答案：A9. 下列哪个词组与“环境保护”意思最接近？A. 污染控制B. 资源开发C. 能源利用D. 经济发展答案：A10. 以下哪个选项是本单元课文中提到的时间？A. 2022年B. 2023年C. 2024年D. 2025年答案：B二、填空题（每题2分，共20分）1. ________ (保护) the environment is our responsibility.答案：Protecting2. The ________ (会议) will be held in the conference room.答案：meeting3. She is ________ (学习) English at the moment.答案：studying4. The ________ (项目) was completed on time.答案：project5. They are ________ (讨论) the plan for the new year.答案：discussing6. The ________ (报告) was very interesting.答案：report7. He is ________ (等待) for the bus.答案：waiting8. The ________ (天气) is getting warmer.答案：weather9. She ________ (完成) her homework yesterday.答案：finished10. The ________ (会议) was very important.答案：meeting三、阅读理解（每题3分，共30分）阅读以下短文，并回答问题。

8A Unit8 Natural disasters 单元测试卷(A)（时间：90分钟满分：100分）一、单项选择。

（每小题1分，计10分）( ) 1. I was doing my homework_______ my mother was cooking some delicious food.A. whileB. asC. whenD. then( )2. The car_______ the tree, and the driver_______ his leg.A. hit; hurtB. hurt; hitC. hurt; hurtD. hit; hit( ) 3. I_______ my grandparents in Shenzhen at this time last year.A. visitedB. visitingC. were visitingD. was visiting( )4. It may be dangerous_______ a car_______ a snowy day.A. to drive; inB. to drive; onC. drive; inD. drive; on( )5. The travellers_______ on the top of the mountain. They called 110 for help.A. trappedB. were trappedC. trappingD. are trapping( )6. They_______ for help and then people heard exciting_______.A. shout; shoutB. shouted; shoutsC. shouted; shoutedD. shouts; shouts( )7. When I was working on a Maths problem, a good idea went my head.A. overB. inC. aboutD. through( ) 8. _______ terrible earthquake ! I don't like it at all.A. HowB. WhatC. What aD. How a( )9. Since you've spilt the milk, you'll have to_______.A. mop it upB. mop up itC. mop them upD. mop up them( )10. They didn't know_______.A. where go toB. where to goC. go to whereD. to go where二、完形填空。

第一章勾股定理单元测试(A卷基础篇）（北师大版）学校:___________姓名：___________班级：___________考号：___________题号一二三总分得分第Ⅰ卷（选择题）评卷人得分一．选择题（共10小题，满分30分，每小题3分）1．（2019春•资阳区校级期中）以下四组数中，不是勾股数的是（）A．3n，4n，5n（n为正整数）B．5，12，13C．20，21，29 D．8，5，72．（2019春•江岸区校级期中）直角三角形ABC的两条直角边的长分别为1、2，则它的斜边长为（）A．B．C．2 D．33．（2019春•博白县期中）三角形的三边a，b，c满足a2+b2﹣c2＝0，则此三角形是（）A．锐角三角形B．直角三角形C．钝角三角形D．等边三角形4．（2019春•南岗区校级期中）如图，两个正方形的面积分别是100和36，则字母B所代表的正方形的面积是（）A．8 B．10 C．64 D．1365．（2019春•太原期中）古埃及人曾经用如图所示的方法画直角：把一根长绳打上等距离的13个结，然后以3个结间距、4个结间距、5个结间距的长度为边长，用木桩钉成一个三角形，其中一角便是直角，这样做的道理是（）A．直角三角形两个锐角互余B．三角形内角和等于180°C．三角形两边之和大于第三边，两边之差小于第三边D．如果三角形两边的平方和等于第三边的平方，那么这个三角形是直角三角形6．（2019春•江岸区校级期中）下列各组数作为三角形的三边，能组成直角三角形的一组数是（）A．2、3、4 B．3、4、5 C．1、、D．、、7．（2019春•海阳市期中）如图，在Rt△ABC中，∠ACB＝90°，AC＝3，BC＝4，点D在AB上，AD＝AC，AF⊥CD交CD于点E，交CB于点F，则CF的长是（）A．1.5 B．1.8 C．2 D．2.58．（2019春•汉阳区校级期中）如图，一棵大树在离地面6米高的B处断裂，树顶A落在离树底部C的8米处，则大树数断裂之前的高度为（）A．16米B．15米C．24米D．21米9．（2019春•江城区期中）已知等腰三角形的一条腰长是15，底边长是18，则它底边上的高为（）A．9 B．12 C．15 D．1810．（2019春•资阳区校级期中）在两条垂直相交的道路上，一辆自行车和一辆摩托车相遇后又分别向北向东驶去，若自行车与摩托车每秒分别行驶2.5米、6米，则10秒后两车相距（）米．A．55 B．65 C．75 D．85第Ⅱ卷（非选择题）评卷人得分二．填空题（共8小题，满分24分，每小题3分）11．（2019春•海沧区校级期中）Rt△ABC中，∠B＝90°，AB＝9，BC＝12，则斜边上的高为．12．（2019春•越秀区校级期中）如图，已知∠ADC＝90°，AD＝8m，CD＝6m，BC＝24m，AB＝26m，则图中阴影部分的面积为．13．（2019春•鼓楼区校级期中）如图，在△ABC中，∠C＝90°，∠B＝30°，AD是△ABC的角平分线，DE ⊥AB，垂足为点E，DE＝2，则BC＝．14．（2019春•阜阳期中）如图，在一个高为5m，长为13m的楼梯表面铺地毯，则地毯的长度至少是．15．（2019春•花都区期中）如图，从电线杆离地面5m处向地面拉一条长13m的固定缆绳，这条缆绳的固定点距离电线杆底部有m．16．（2018秋•景德镇期中）如图，某自动感应门的正上方装着一个感应器，离地2.5米，当物体进入感应器的感应范围内时，感应门就会自动打开．一个身高1.6米的学生正对门，缓慢走到离门1.2米的地方时，感应门才自动打开，则感应器的最大感应距离是米．17．（2019春•沂水县期中）如图，一个直径为8cm的杯子，在它的正中间竖直放一根筷子，筷子露出杯子外1cm，当筷子倒向杯壁时（筷子底端不动），筷子顶端刚好触到杯口，则筷子长度为cm．18．（2019春•武城县期中）如图所示，圆柱的高AB＝15cm，底面周长为40cm，现在有一只蚂蚁想要从A 处沿圆柱表面爬到对角C处捕食，则它爬行的最短距离是．评卷人得分三．解答题（共5小题，满分46分）19．（9分）（2019春•路北区期中）在△ABC中，∠C＝90°，a、b、c分别为∠A、∠B、∠C的对边．（1）如果a＝5，b＝12，那么c＝．（2）如果c＝61，a＝60，那么b＝．（3）若∠A＝45°，a＝2，则c＝．20．（9分）（2019春•高安市期中）已知：如图，四边形ABCD中，AB⊥BC，AB＝1，BC＝2，CD＝3，AD ＝，求四边形ABCD的面积．21．（9分）（2019春•江城区期中）如图，在锐角三角形ABC中，高AD＝12，边AC＝13，BC＝14，求BD 的长．22．（9分）（2019春•全椒县期中）如图，有两棵树AB和CD，AB＝10米，CD＝4米，两树之间的距离BD ＝8米，一只鸟从A处飞到C处，则小鸟至少飞行多少米？23．（10分）（2019春•江城区期中）“远航”号、“海天”号轮船同时离开港口，各自沿一固定方向航行，“远航”号每小时航行16海里，“海天”号每小时航行12海里，它们离开港口一个半小时后相距30海里，如果知道“远航”号沿东北方向航行，你能知道“海天”号沿哪个方向航行吗？第二章勾股定理单元测试(A卷基础篇）（北师大版）参考答案与试题解析一．选择题（共10小题，满分30分，每小题3分）1．（2019春•资阳区校级期中）以下四组数中，不是勾股数的是（）A．3n，4n，5n（n为正整数）B．5，12，13C．20，21，29 D．8，5，7【答案】解：A、3n2+4n2＝5n2，是勾股数；B、52+122＝132，是勾股数；C、202+212＝292，是勾股数；D、72+52≠82，不是勾股数；故选：D．【点睛】考查了勾股数，理解勾股数的定义：满足a2+b2＝c2的三个正整数称为勾股数，并能够熟练运用．2．（2019春•江岸区校级期中）直角三角形ABC的两条直角边的长分别为1、2，则它的斜边长为（）A．B．C．2 D．3【答案】解：由勾股定理得，直角三角形的斜边长＝＝，故选：B．【点睛】本题考查的是勾股定理，如果直角三角形的两条直角边长分别是a，b，斜边长为c，那么a2+b2＝c2．3．（2019春•博白县期中）三角形的三边a，b，c满足a2+b2﹣c2＝0，则此三角形是（）A．锐角三角形B．直角三角形C．钝角三角形D．等边三角形【答案】解：∵a2+b2﹣c2＝0，∴a2+b2＝c2，∴此三角形是直角三角形．故选：B．【点睛】此题主要考查了勾股定理逆定理，关键是掌握如果三角形的三边a2+b2＝c2，那么这个三角形就是直角三角形．4．（2019春•南岗区校级期中）如图，两个正方形的面积分别是100和36，则字母B所代表的正方形的面积是（）A．8 B．10 C．64 D．136【答案】解：由勾股定理得，AC2+CD2＝AD2，则字母B所代表的正方形的面积＝CD2＝AC2﹣AD2＝100﹣36＝64，故选：C．【点睛】本题考查的是勾股定理、正方形的性质，如果直角三角形的两条直角边长分别是a，b，斜边长为c，那么a2+b2＝c2．5．（2019春•太原期中）古埃及人曾经用如图所示的方法画直角：把一根长绳打上等距离的13个结，然后以3个结间距、4个结间距、5个结间距的长度为边长，用木桩钉成一个三角形，其中一角便是直角，这样做的道理是（）A．直角三角形两个锐角互余B．三角形内角和等于180°C．三角形两边之和大于第三边，两边之差小于第三边D．如果三角形两边的平方和等于第三边的平方，那么这个三角形是直角三角形【答案】解：设相邻两个结点的距离为m，则此三角形三边的长分别为3m、4m、5m，∵（3m）2+（4m）2＝（5m）2，∴以3m、4m、5m为边长的三角形是直角三角形．（如果三角形的两条边的平方和等于第三边的平方，那么这个三角形是直角三角形）故选：D．【点睛】此题考查了勾股定理的证明，属于基础题，注意仔细阅读题目所给内容，得到解题需要的信息，比较简单．6．（2019春•江岸区校级期中）下列各组数作为三角形的三边，能组成直角三角形的一组数是（）A．2、3、4 B．3、4、5 C．1、、D．、、【答案】解：A、22+32≠42，不能构成直角三角形，故此选项错误；B、32+42＝52，能构成直角三角形，故此选项正确；C、12+（）2≠（）2，不能构成直角三角形，故此选项错误；D、（）2+（）2≠（）2，不能构成直角三角形，故此选项错误．故选：B．【点睛】本题主要考查勾股定理的逆定理的应用．关键是熟练掌握勾股定理的逆定理：如果三角形的三边长a，b，c满足a2+b2＝c2，那么这个三角形就是直角三角形．7．（2019春•海阳市期中）如图，在Rt△ABC中，∠ACB＝90°，AC＝3，BC＝4，点D在AB上，AD＝AC，AF⊥CD交CD于点E，交CB于点F，则CF的长是（）A．1.5 B．1.8 C．2 D．2.5【答案】解：连接DF，如图所示：∵在Rt△ABC中，∠ACB＝90°，AC＝3，BC＝4，∴AB＝＝5，∵AD＝AC＝3，AF⊥CD，∴CE＝DE，BD＝AB﹣AD＝2，∴CF＝DF，在△ADF和△ACF中，，∴△ADF≌△ACF（SSS），∴∠ADF＝∠ACF＝90°，∴∠BDF＝90°，设CF＝DF＝x，则BF＝4﹣x，在Rt△BDF中，由勾股定理得：DF2+BD2＝BF2，即x2+22＝（4﹣x）2，解得：x＝1.5；∴CF＝1.5；故选：A．【点睛】本题考查了勾股定理、全等三角形的判定与性质、等腰三角形的性质、线段垂直平分线的性质；熟练掌握勾股定理，证明三角形全等是解决问题的关键．8．（2019春•汉阳区校级期中）如图，一棵大树在离地面6米高的B处断裂，树顶A落在离树底部C的8米处，则大树数断裂之前的高度为（）A．16米B．15米C．24米D．21米【答案】解：由题意得BC＝6，在直角三角形ABC中，根据勾股定理得：AB＝＝10米．所以大树的高度是10+6＝16米．故选：A．【点睛】此题是勾股定理的应用，解本题的关键是把实际问题转化为数学问题来解决．此题也可以直接用算术法求解．9．（2019春•江城区期中）已知等腰三角形的一条腰长是15，底边长是18，则它底边上的高为（）A．9 B．12 C．15 D．18【答案】解：过点A作AD⊥BC，∵AB＝AC，∴BD＝CD＝BC＝18＝9，∴AD＝＝12（cm），∴它底边上的高为12cm；故选：B．【点睛】此题考查了勾股定理，用到的知识点是勾股定理、等腰三角形的性质，关键是作出辅助线，构造直角三角形．10．（2019春•资阳区校级期中）在两条垂直相交的道路上，一辆自行车和一辆摩托车相遇后又分别向北向东驶去，若自行车与摩托车每秒分别行驶2.5米、6米，则10秒后两车相距（）米．A．55 B．65 C．75 D．85【答案】解：如图所示：由题意可得，在Rt△ACB中，AC＝2.5×10＝25米，BC＝6×10＝60米，则AB＝＝＝65（米），则10秒后两车相距65米．故选：B．【点睛】此题主要考查了勾股定理的应用，正确画出图形是解题关键．二．填空题（共8小题，满分24分，每小题3分）11．（2019春•海沧区校级期中）Rt△ABC中，∠B＝90°，AB＝9，BC＝12，则斜边上的高为．【答案】解：设AC边上的高为h，∵在Rt△ABC中，∠B＝90°，AB＝9，BC＝12，AC＝15，∴AB•BC＝AC•h，∴h＝．故答案为：【点睛】本题考查的是三角形的面积，熟知三角形的面积公式是解答此题的关键．12．（2019春•越秀区校级期中）如图，已知∠ADC＝90°，AD＝8m，CD＝6m，BC＝24m，AB＝26m，则图中阴影部分的面积为96m2．【答案】解：在Rt△ADC中，∵CD＝6m，AD＝8m，∠ADC＝90°，BC＝24m，AB＝26m，∴AC2＝AD2+CD2＝82+62＝100，∴AC＝10m，（取正值）．在△ABC中，∵AC2+BC2＝102+242＝676，AB2＝262＝676．∴AC2+BC2＝AB2，∴△ACB为直角三角形，∠ACB＝90°．∴S阴影＝AC×BC﹣AD×CD＝×10×24﹣×8×6＝96（m2）．故答案是：96m2【点睛】本题考查的是勾股定理的运用和勾股定理的逆定理运用，解题的关键是根据勾股定理求出AC 的长，再根据勾股定理的逆定理判断出△ACB为直角三角形．13．（2019春•鼓楼区校级期中）如图，在△ABC中，∠C＝90°，∠B＝30°，AD是△ABC的角平分线，DE ⊥AB，垂足为点E，DE＝2，则BC＝6．【答案】解：∵AD是△ABC的角平分线，∠C＝90°，DE⊥AB，∴DC＝DE＝2，在Rt△BDE中，∠B＝30°，∴BD＝2DE＝4，∴BC＝CD+BD＝6，故答案为：6．【点睛】本题考查的是勾股定理、角平分线的性质，掌握角的平分线上的点到角的两边的距离相等是解题的关键．14．（2019春•阜阳期中）如图，在一个高为5m，长为13m的楼梯表面铺地毯，则地毯的长度至少是17m．【答案】解：由勾股定理得：楼梯的水平宽度＝＝12，∵地毯铺满楼梯是其长度的和应该是楼梯的水平宽度与垂直高度的和，地毯的长度至少是12+5＝17米．故答案为：17m．【点睛】本题考查了勾股定理的知识，与实际生活相联系，加深了学生学习数学的积极性．15．（2019春•花都区期中）如图，从电线杆离地面5m处向地面拉一条长13m的固定缆绳，这条缆绳的固定点距离电线杆底部有12m．【答案】解：∵电线杆、地面及缆绳正好构成直角三角形，AC＝5m，BC＝13m，∴AB＝＝＝12m．故答案为：12．【点睛】本题考查的是勾股定理的应用，有利于培养学生理论联系实际的能力．16．（2018秋•景德镇期中）如图，某自动感应门的正上方装着一个感应器，离地2.5米，当物体进入感应器的感应范围内时，感应门就会自动打开．一个身高1.6米的学生正对门，缓慢走到离门1.2米的地方时，感应门才自动打开，则感应器的最大感应距离是 1.5米．【答案】解：如图，过点B作BC⊥AD于点C，依题意知，BE＝CD＝1.6米，ED＝BC＝1.2米，AD＝2.5米，则AC＝AD﹣CD＝AD﹣BE＝2.5﹣1.6＝0.9（米）．在Rt△ABC中，由勾股定理得到：AB＝＝＝1.5（米）故答案是：1.5．【点睛】考查了勾股定理的应用，解题的关键是作出辅助线，构造直角三角形，利用勾股定理求得线段AB的长度．17．（2019春•沂水县期中）如图，一个直径为8cm的杯子，在它的正中间竖直放一根筷子，筷子露出杯子外1cm，当筷子倒向杯壁时（筷子底端不动），筷子顶端刚好触到杯口，则筷子长度为8.5cm．【答案】解：设杯子的高度是xcm，那么筷子的高度是（x+1）cm，由题意：x2+42＝（x+1）2，16＝2x+1，x＝7.5，∴x+1＝8.5∴筷长8.5cm，杯高7.5cm．故答案为8.5．【点睛】本题考查勾股定理的应用，解题的关键是理解题意，学会利用参数构建方程解决问题．18．（2019春•武城县期中）如图所示，圆柱的高AB＝15cm，底面周长为40cm，现在有一只蚂蚁想要从A 处沿圆柱表面爬到对角C处捕食，则它爬行的最短距离是25cm．【答案】解：把圆柱侧面展开，展开图如右图所示，点A、C的最短距离为线段AC的长．在Rt△ADC中，∠ADC＝90°，CD＝AB＝15，AD为底面半圆弧长，AD＝40＝20，所以AC＝＝＝25，故答案为：25cm．【点睛】本题考查了平面展开﹣最短路径问题，解题的关键是会将圆柱的侧面展开，并利用勾股定理解答．三．解答题（共5小题，满分46分）19．（9分）（2019春•路北区期中）在△ABC中，∠C＝90°，a、b、c分别为∠A、∠B、∠C的对边．（1）如果a＝5，b＝12，那么c＝13．（2）如果c＝61，a＝60，那么b＝11．（3）若∠A＝45°，a＝2，则c＝2．【答案】解：（1）∵在△ABC中，∠C＝90°，a＝5，b＝12，∴c＝＝＝13．故答案为13；（2）∵在△ABC中，∠C＝90°，c＝61，a＝60，∴b＝＝＝11．故答案为11；（3）∵在△ABC中，∠C＝90°，∠A＝45°，∴∠B＝90°﹣∠A＝45°，∴∠B＝∠A，∴b＝a＝2，∴c＝＝＝2．故答案为2．【点睛】本题考查了勾股定理，掌握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．20．（9分）（2019春•高安市期中）已知：如图，四边形ABCD中，AB⊥BC，AB＝1，BC＝2，CD＝3，AD＝，求四边形ABCD的面积．【答案】解：连接AC．∵∠ABC＝90°，AB＝1，BC＝2，∴AC＝＝＝．在△ACD中，AC2+CD2＝5+9＝14＝AD2，∴△ACD是直角三角形，∴S四边形ABCD＝AB•BC+AC•CD，＝×1×2+××3＝1+．故四边形ABCD的面积为1+．【点睛】本题考查的是勾股定理及其逆定理，三角形的面积，能根据勾股定理的逆定理判断出△ACD的形状是解答此题的关键．21．（9分）（2019春•江城区期中）如图，在锐角三角形ABC中，高AD＝12，边AC＝13，BC＝14，求BD 的长．【答案】解：∵AD⊥BC，∴∠ADC＝90°，在Rt△ACD中，CD＝＝＝5，∵BC＝14，∴BD＝BC﹣CD＝9．【点睛】本题考查了勾股定理的运用．关键是利用垂直的条件构造直角三角形，利用勾股定理求解．22．（9分）（2019春•全椒县期中）如图，有两棵树AB和CD，AB＝10米，CD＝4米，两树之间的距离BD ＝8米，一只鸟从A处飞到C处，则小鸟至少飞行多少米？【答案】解：连接AC，作CE⊥AB于E，则AE＝10﹣4＝6（米），CE＝BD＝8米．所以AC＝＝＝10（米）即：小鸟至少飞行10米．【点睛】本题考查勾股定理的应用．善于观察题目的信息是解题以及学好数学的关键．23．（10分）（2019春•江城区期中）“远航”号、“海天”号轮船同时离开港口，各自沿一固定方向航行，“远航”号每小时航行16海里，“海天”号每小时航行12海里，它们离开港口一个半小时后相距30海里，如果知道“远航”号沿东北方向航行，你能知道“海天”号沿哪个方向航行吗？【答案】解：根据题意，得PQ＝16×1.5＝24（海里），PR＝12×1.5＝18（海里），QR＝30（海里）．∵242+182＝302，即PQ2+PR2＝QR2，∴∠QPR＝90°．由“远航号”沿东北方向航行可知，∠QPS＝45°，则∠SPR＝45°，即“海天”号沿西北或东南方向航行．【点睛】此题考查勾股定理的应用，主要是能够根。

人教版九年级全一册Unit 8 单元过关测试卷(739)1.Sh e mu s t ha ve s ta ye d th e re f o r a lo n g (一段时间) o f time.2.H e u s ed(s ta y)u p la te，bu t no w he g o e s to b e d e a r ly.3.I to o k my s o n to the z o o ye s te r d a y．T h e(wo lf)th e re we re ve r y b ig.4.Th e a th le te s lo ok (e ne rg y)a n d th e y h a ve co n f ide n ce to win th e g a me.5.J a ck is to o yo u n g (g o) to sc ho o l.6.Th e ta lk h e g a ve u s ye s te r d a y wa s r e a lly(va lu e).O ne da y，wh en B ill wa s1.h o me f ro m s c h oo l，he he a rd a no is e co min g f r o m th e b u s he s．H e wen t o ver to s ee 2.it wa s．Be h ind a bu s h，h e fo u nd a b la ck d og．B ill we n t b a ck h o me a s s oo n a s he 3.with the d o g an d sh o wed h e r to h is p a r en ts．B ill's d a d fo u nd tha t th e d o g h a d a b ro k en le g， 4.the y b r o u g h t h e r to a do c to r fo r an ima ls b y c a r．On th e 5.，B ill's p a r e n ts de c ide d th a t B ill co u ld ke e p th e d og if the y c o u ldn't f in d the o wn e r．W h en th e y a r r ive d，th e d oc to r c h ec k ed the d og．H e to ld B ill th a t s he6.g o in g to h a ve b a b ie s! Th e ne x t d a y，B ill 7.s ig ns (牌子) with wo r d s“FOUND DOG B LAC K”a r o un d h is ne ig hb o rh oo d．He8.wr o te h is f a mil y's p h o n e n umb e r o n th e s ig n s．Two d a ys la te r,B ill go t a ca ll 9.th e o wn e r o f th e d og．Th e o wn e r th a nk ed B ill．W h en he ca me to p ic k u p h isd o g，he s a id B ill c ou ld h a ve10.of th e b ab ie s．B ill wa s ve r y h a p p y! Fin a ll y, B illg o t a ba b y d o g f r o m th e o wn e r．H e n a me d h im R o sc o a nd lik e d h im ve r y mu c h．(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)8.她可能正跑着赶公共汽车去上学。

Unit 8 It must belong to Carla.单元测试03一、听力测试（20分）（一）听录音，从A、B、C三段对话中选择与画面一致的选项。

（5分）1.（）2.（）3.（）4.（）5.（）（二）听录音，选择适当的答语。

（5分）6.A.It’s white. B. It must be Jack’s. C.It’s my favorite.7.A.It’s on the wall. B.It belongs to Mary. C.Peter took it.8.A.I’m sorry. B. Don’t worry. C.You’re welcome.9.A.He’s very friendly. B. He might be a driver. C.I don’t like him.10.A.It’s about pets. B. It’s Ann’s. C.It’s John.（三）对话理解（5分）你将听到两段对话，在每段对话后有几个小题，请在每小题所给的A、B、C三个选项中选出最佳选项。

听第一段对话，回答11~12小题。

11.Where did the girl find the book?A.Under Toby’s desk.B. Under her desk.C.In her drawer.12.Why does Toby think the book is Sandy’s?A.Because he bought it with Sandy.B. Because Sandy lent it to him.C.Because Sandy’s name is on it.听第二段对话，回答13~15小题。

13.Where did the boy probably leave his backpack?A.In the classroom.B. At the gym.C.At the dining hall.14.What’s the time now?A.5: 30.B.6: 30.C.6: 40.15.What does Mom advise the boy to do?A.To get his backpack back.B.To give his teacher a call.C.To do his homework later.（四）听短文，根据短文内容填空。

人教版初三九年级化学第8单元测试题及答案1.选择题：1.2010年在上海举行的世博会上，中国馆——“东方之冠”给人强烈的视觉冲击，它的主体结构为四根巨型的钢筋混凝土制成的核心筒。

其中的钢属于（）A。

金属材料 B。

合成材料 C。

隐身材料 D。

天然材料2.下列有关金属的说法错误的是（）A。

金属具有金属光泽，常温下金属都是固体B。

生铁和钢是含碳量不同的铁合金，其中生铁的含碳量大于钢的含碳量C。

炒完菜后，应及时除掉锅底的水，这样可以防止铁锅生锈D。

金属的回收利用是保护金属资源的有效途径之一3.铁是一种应用广泛的金属。

下列有关铁的叙述正确的是（）A。

铁是地壳中含量最多的金属 B。

工业上用二氧化碳冶炼钢铁C。

用铁可以回收硝酸银废液中的银 D。

铁丝在氧气中燃烧生成氧化铁4.废旧手机的某些部件中含有Mg、Al、Cu、Ag等金属，为了回收重金属，将旧手机的部件粉碎并浸入足量稀硫酸中充分反应过滤，所得固体中含有的金属是（）A。

Mg、Al B。

Cu、Ag C。

Al、Cu D。

Mg、Ag5.下列反应中，属于置换反应的是（）点燃A。

CO + CuO → Cu + CO2B。

3Fe + 2O2 → Fe3O4 高温C。

Fe + 2AgNO3 → 2Ag + Fe(NO3)2D。

CaCO3 → CaO + CO2↑6.根据金属活动性顺序分析，下列描述或判断错误的是（）A。

常温下，在空气中金属镁比铁容易氧化B。

在氧气中灼烧时，铁丝比铜丝反应剧烈C。

与同种盐酸反应时，锌片比铁片反应剧烈D。

铜活动性不强，故铜不能与硝酸银溶液反应得到金属银7.下列各组物质不能发生化学反应的是（）A。

汞与硝酸银溶液 B。

铜与硝酸镁溶液 C。

锌与硫酸亚铁溶液 D。

铝与稀盐酸8.下列四个实验中只需要完成三个就可以证明铁、铜、银三种金属的活动性顺序。

其中不必进行的是（）A。

将铁片放入稀盐酸中 B。

将铁片放入硝酸银溶液C。

将铜片放入稀硫酸中 D。

将铜片放入硝酸银溶液9.将等质量的甲、乙两金属分别与足量的稀硫酸反应，产生氢气的质量与反应时间的关系如右图。

班级姓名学号分数Unit 8 How do you make a banana milk shake?单元测试（A卷·夯实基础）（时间：60分钟，满分：100分）一、词汇填空（本题共15小题，每小题1分，共15分。

）1．P____________ the button ,you can turn it on or turn it off.2．F________, he beat me in the tennis game.3．Her lemon juice was too sour (酸的), so she added more s________.4．If you feel bad and go to the doctor, the doctor first asks you to take your ________ (体温).5．A few minutes later, the big snow ______(覆盖) the trees.6．If the tea is too strong, _______(添加) some more water.7．Do you like to drink _________（酸奶）?8．Please ________ (原谅) me for arriving late for school.9．How do people ____________ (庆祝) Mid-Autumn Festival?10．Would you like to put some ________（黄油）on the bread?11．I eat three ________ (三明治) every morning.12．Betty, get two ________(勺) of chicken soup for your grandpa.13．—Would you like some juice, Mike?—No, thanks. Just now Alice ________ (倒出) a cup of tea for me.14．My sister wants to be a singer(歌手), so she is ________(做准备) for the coming competition.15．Kate had some bread and ________（奶酪）this morning.二、用括号内所给单词的适当形式填空（本题共10小题，每小题1分，共10分。