初二上8单元测试(a卷)
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Unit 8 How do you make a banana milk shake?第二课时Section A(2a-2d)一、根据句意及汉语提示填写单词。
1. Please give me a (勺) or I can't drink the hot soup.2. Many kids like (蜂蜜) from bees because it tastes sweet.3.I often have some bread and a cup of (酸奶) for breakfast.4. We can't drink sea water because there is much (食盐) in it.5. (最终), the police found the lost boy on the street.二、用括号内所给词的适当形式填空。
6. I (add)some beef to the soup just now.7. I think (watermelon)are the most popular fruit in summer.8. My mother needs (cook)dinner after work every day.9. Mary likes buying nice (pot)on the Internet.10.They (final) decided to go to the movies on the weekend.三、根据汉语意思完成句子,每空一词。
11.还有一件事,请把这本书给玛丽。
,please give the book to Mary. 12.格林先生喝了几杯茶?of tea did Mr. Green drink?13.和那些可爱的孩子们一起做水果沙拉多么有趣啊!What great fun it was to with those lovely kids!14.这个周末,我将给我的家人做一顿大餐。
《近代经济、社会生活与教育文化事业的发展》单元检测题一、选择题1.20世纪30〜40年代,我国音乐家创作了许多控诉日本侵华造成民族苦难和讴歌、激励抗击曰本侵略的音乐作品,其中冼星海创作的,被誉为“中华民族解放运动的音乐史诗”的是()A.《松花江上》B.《毕业歌》C.《义勇军进行曲》D.《黄河大合唱》2.“先天不足,后天畸形”是对近代中国民族工业生动的写照。
说它“畸形”,从行业看,是因为主要集中在()A.轻工业B.重工业C.造船业D.冶铁业3.下列是一组中国近代历史的图片,与这组内容吻合的主题是()A.民族资本主义企业的产生B.近代工业的兴起和发展C.外国资本主义扩张D.社会主义国营企业的建立4.中国文学史上第一篇白话小说是()A.《文学改良刍议》B.《阿Q正传》C.《故乡》D.《狂人日记》5.抓住关键词语是一种很好的历史学习方法。
李刚同学在复习历史时,写下了“鲁迅”、“茅盾”、“《阿Q正传》”、“巴金”等一些词语,你认为李刚复习的主题最可能是()A.文学的发展B.社会习俗的变化C.衣食住行的发展D.列强发动侵华战争6.《黄河大合唱》以气势宏伟的旋律,发出了中华民族英勇抗战的怒吼。
它的作者是()A.左宗棠B.李宗仁C.聂耳D.冼星海7.绍兴是鲁迅的故乡,鲁迅是绍兴的“金名片”。
在新文化运动中,鲁迅为了揭露几千年来封建礼教吃人的真面目而创作的第一篇白话小说是()A.《狂人日记》B.《故乡》C.《阿Q正传》D.《孔乙己》8.1895年中国有三个人各自做出自己一生中最重要的选择,终极目标都是为了救国。
康有为选择了变法,孙中山选择了革命,还有一个人是张謇。
张謇选择的道路是A.师夷长技B.实业救国C.君主立宪D.民主科学9.中华民国建立后,明令废除“大人”“老爷”等称呼,而以先生、君或官职相称。
此外,各政党团体内部一般称“同志”。
对妇女则根据年龄、身份的不同分别称夫人、女士、小姐等。
这种社会习俗的变化主要反映了当时社会上出现的什么新观点()A.平等观念B.民主观念C.自由观念D.等级观念10.下列作品中不属于解放区优秀小说的是()A.《小二黑结婚》B.《李有才板话》C.《太阳照在桑干河上》D.《狂人日记》11.近代以来,我国民族工业的发展历程曲折又缓慢。
八年级(上)英语单元测试卷(Unit 8)时量:90分钟总分120分Ⅰ.听力技能(三部分,共20小题,计25分)A)反应根据你所听到的内容,选择正确答语完成对话。
(共5小题,每小题1分)()1. A. Three bananas. B. Two apples. C. One spoon. ()2. A. One cup. B. Three. C. Four. ()3. A. With chicken in it. B. No, I don’t. C. Yes, I do.()4. A. Good idea. B. You’re welcome. C. Thank you.()5. A. Yes, I can. B. No, I can. C. Yes, I can’t.B)理解根据你所听到的对话,选择最佳答案回答问题。
(共10小题,每小题1分)听下面的对话,回答第6至7小题。
()6. Where is Jane going during the winter vacation?A. To Hainan.B. To Shanghai.C. To Beijing.()7. How is she going there?A. By train.B. By plane.C. By bus.听下面的对话,回答第8至9小题。
()8. What day is it today?A. Saturday.B. Friday.C. Thursday.()9. What will they do next?A. Go to the supermarket.B. Go on the Internet.C. Give Linda a call.听下面的对话,回答第10至12小题。
()10. What will Helen do first?A. Buy some things.B. Meet David.C. Make dinner.()11. What should Helen buy?A. Rice.B. sugar.C. Rice and sugar()12. Where will Helen buy the things ?A. The supermarket.B. The nearest store.C. We don’t know.听下面的对话,回答第13至15小题。
Unit 8标准检测卷听力部分(20分)一、听句子,选出句中所包含的信息(每小题1分,共5分) 1.A. voice B.noise C.choice2. A.Grade 7 B.Grade 8 C.Grade 93. A.make up B.make for C.make sense4.A. Kate teaches Chinese.B.Kate studies Chinese by herself.C.Kate does well in Chinese.5.A. We have to get there on time.B.We needn't get there on time.C.We should get there on time.二、听录音,选出该句的最佳答语(每小题1分,共5分)6. A.No problem.B.I need your help with my Chinese.C.Yes,please.7. A.Well done. B.Don't mention it. C.Never mind.8. A.Oh, no. B.Many thanks.C.It's okay.9.A.I hope so. B.I'm afraid not.C.No, I won't.10. A.Yes,I am. B.I can do it by myself.C.No,I don't think so.三、听对话和问题,选择正确答案(每小题1分,共5分)11.12.13. A.He feels excited.B.He feels nervous.C.He feels sad.14. A.Because the English exam was hard.B.Because she passed the English exam.C.Because she made some mistakes in the English exam. 15.A. She didn't do it well.B.It was excellent.C.She did worst of all the students.四、听短文,选择最佳答案(每小题1分,共5分) 16.Li Ying is________metres tall now.A.1.62B.1.70C.1.7217.Li Ying often played ________when she was young.A.on the beachB.on the hills C.in the park18.Li Ying liked ________under the trees.A.dancing B.sleeping C.reading19.Li Ying has a special talent for________.A.singing in a high voiceB.playing basketballC.drawing beautiful pictures20.Li Ying's ambition is to________.A.travel all over the worldB.become a singerC.help sick people笔试部分(100分)五、单项选择(每小题1分,共15分)21.Lucy wants to be ________ opera singer when she grows up.A.a B.an C.the D./22.Tu Youyou is famous ________ winning the Nobel Prize for Physiology or Medicine.A.because B.sinceC.as D.because of23. It's very important for us to learn how to learn by________________.A.ourselves B.itselfC.myself D.themselves24. My teacher gave me much ________ on how to study English wellwhen I had some trouble.A.advice B.questionC.suggestion D.problem25.—Don't ask her that question. It's too________.—Sorry,I won't next time. I know it's rude.A.interesting B.personalC.important D.cheap26.—Your English is very good. Who taught you?— ________.I learned it all by myself.A.Somebody B.EverybodyC.Nobody D.Anybody27.It's really ________ you not to tell your parents about the problems. Do you think you can solve them on your own?A.smart of B.smart forC.stupid of D.stupid for28.—Are you ________ the basketball match against Class 9, Yangyang?—Sure, I am. I've got everything ready!A.worried about B.confident aboutC.fond of D.crazy about29. Don't give up ________ English. It is very useful for your future.A.study B.to study C.studying D.studies30. Food safety has become one of ________ topics recently.A.hot B.hotter C.hottest D.the hottest31. Jim's quite afraid of mice. When he sees a mouse in the kitchen, hewill have__his__heart__in__his__mouth.A.feel nervous B.get annoyedC.let him down D.make mistakes32.The joke was so funny that it made him ________ again and again.A.laugh B.to laugh C.laughed D.laughs33. Sorry, I can't ________ your invitation. I have no time to attend.A.receive B.offer C.return D.accept34.This movie wasn't ________.He fell asleep halfway through it. A.interesting enough B.enough interestingC.interested enough D.enough interested35.—So kind of you to give me a ride to the station!— ________.A.It doesn't matter B.Never mindC.That's all D.My pleasure六、完形填空(每小题1分,共10分)(词数:约180;建议用时:6分钟)There is an English corner in our school. Every afternoon,many of my classmates come to the corner. My teacher Miss Li comes here,________(36).At the corner,we all speak English.The corner started last year. There were only ________(37) students because many were afraid to speak English. After a few weeks,more and more students came here. At first,some students just ________(38) to the other students. I was one of them. I was afraid to speak English. I thought someone would ________(39) me,but I wanted to speak. I always spoke English in my heart. My teacher went on saying,“Don't be afraid. Open your mouth.” I tried and tried to open my mouth. At last,I said “Hello!” to the teacher. The teacher was very ________(40) .She said “Hello!” to me at once. From ________(41) on,I began to speak English. I work hard at English and I try my best ________(42) more. I learn ________(43) my teacher and my classmates at the corner. Now I can speak a little English. Every Sunday afternoon,I come to the corner ________(44).It's a good ________(45) to speak English. Please join us.36.A. also B.either C.too D.as well37.A. a lot of B.a little C.a bit of D.a few38.A .talked B.spoke C.listened D.came39.A. help B.laugh at C.stop D.fit into40.A. happy B.interesting C.sad D.afraid41.A. now B.then C.today D.that42.A.to speak B.of talk C.saying D.telling43.A.to B.at C.for D.from44.A. late B.often C.early D.too45.A. room B.school C.home D.place七、阅读理解(每小题2分,共30分)A (词数:约200;建议用时:6分钟)When you finish high school or university, is learning done? The answer is “no”.In many countries, people continue learning all their lives. Why is lifelong learning important? How can it help you? Let's look at one example of lifelong learning in Japan.Why is lifelong learning important?You go to school and learn. You take tests. But learning doesn't only happen in school. And learning doesn't stop when you graduate from high school or college. You are learning all the time. For example, learning can happen when you go to a museum. It can also happen when you get a job. You learn when you play a sport or when you take a trip. Learning is life! We never stop learning. Every day, you can improve yourself by learning something new.Lifelong learning in JapanIn Japan, lifelong learning is very important. People in Japan like to try new learning activities. Music, calligraphy, flower arranging, and foreign languages are some of their favorite classes. The Japanese take classes to improve their skills and learn new things.ConclusionWhen we graduate from school, we can continue to learn. Make lifelong learning one of your goals!46.Why is lifelong learning important?A.It helps you improve yourself.B.It's the best way to learn.C.It's fun and easy.D.It's an important goal.47. Some people in Japan take foreign language classes to ________.A.get a job B.learn new thingsC.get good grades D.finish college48.Which of the following is TRUE according to the passage?A.Learning only happens in school.B.When we graduate from school, learning is done.C.You can't learn anything when you play a sport.D.Music, calligraphy, flower arranging and foreign languages are popular classes in Japan.49.We can learn________.A.in school B.in collegeC.at work D.All of the above.50. What is the main idea of the passage?A.Learning can be fun.B.We are always learning in school.C.Finishing high school is important.D.People can learn all their lives.B (词数:约180;建议用时:4分钟)51.What did Li Ming and his classmates talk about in the class meeting?A.Their teachers. B.Their dreams.C.Their parents. D.Their friends.52.Who wants to be a teacher?A.Chen Jie. B.Li Ming.C.Mr. Wu. D.Miss Liu.53.What subject does Mr. Wu teach?A.Chinese. B.English.C.Math. D.P.E.54.What do Chen Jie's parents think of the job of a voluntary doctor?A.Very difficult. B.Very easy.C.Very interesting D.Very boring.55.Chen Jie wrote a letter to Miss Liu because he wanted ________.A.to give up his dreamB.to be poorC.to make friends with Li MingD.to get some adviceC (词数:约240;建议用时:7分钟)There are so many successful men and women in the world. And it's common to dream of doing big business when we grow up. However,Moziah Bridges tells us a quite different story.Moziah Bridges is the CEO of Mo's Bow's Company. He has made $200,000 by selling bow ties (领结) and other men's fashion accessories (饰品).The boy designs (设计) the bow ties together withseven other workers,including his mother and grandmother.“Mo is the CEO of the company,but I am the CEO of Mo,” Bridges' grandma said.About four years ago,when Bridges went shopping for bow ties,he found they were in black and red. He wanted a change. So he asked his grandma to teach him to sew,and finally he developed the talent of creating bow ties. His first bow tie didn't look nice,but the young sewer kept on practicing.At first he tried to sell them online to several stores in the south. Soon Mo's bow ties became popular. With the help of Daymond John,CEO of the famous US clothes brand FUBU,Bridges built his own company. Daymond John not only provided money for him,but also introduced Bridges to the circle of fashion and business industries.Now the 13-year-old's business has developed rapidly. So you don't have to wait till you're older. If you have a dream,go for it!56.How many people are there in Mo's Bow's Company?A.Seven. B.Eight. C.Nine. D.Ten.57.What do we know about Bridges' grandma from the third paragraph?A.She is proud of her grandson.B.She is not pleased with Bridges' work.C.She doesn't care about Bridges' company.D.She doesn't want to work for Bridges.58.Which of the following is TRUE according to the passage?A.Bridges taught himself how to sew.B.Bridges' first bow tie looked nice.C.Mo's Bow's Company develops slowly.D.Daymond John really helped Bridges a lot.59.What kind of person is Moziah Bridges?A.Clever but boring.B.Talented but lazy (懒惰的).C.Creative and hardworking.D.Careless (粗心的) and stupid.60.Which can be the best title of this passage?A.A Teenager CEO and His BusinessB.Successful Men and WomenC.Daymond John and Moziah BridgesD.Fashion and Business Industries八、任务型阅读(每小题2分,共10分) (词数:约190;建议用时:6分钟)Jeff Gaye, the young American swimmer, is becoming more and more famous. He has his own teacher, driver and even his own cook. Each time people hear him speak on television, they can't believe he's only 13.Jeff's father is an engineer but he is also his son's manager. He says,“I don't make Jeff do anything he doesn't want to do. He chooses whichcompetition to swim in. But he works hard and wins nearly every race. I cut out all the newspaper articles about him and put them in a big box!”Jeff is very busy every day because people want to write about him or photograph (给……拍照) him for magazines .“When I'm at school,” Jeffsays“I__just__want__to__be__like__my__classmates.That's__really__im portant__to__me.” But Jeff doesn't have a normal (正常的) schoolboy's life. He often has to travel for international races and has little free time .“I go to the pool every day and swim there for at least six hours. When I'm in the pool,I love every minute.”61.Who is Jeff Gaye?___________________________________________________________ 62.What does Jeff's father do?___________________________________________________________ 63.How long does Jeff swim in the pool every day?___________________________________________________________ 64.把短文第二段中画线的句子译成汉语。
八年级英语上UNIT 8 单元测试Ⅰ.听句子,选择与句子内容相符的图片。
每个句子读两遍(每小题1分,共5分)1. 2. 3. 4. 5.Ⅱ.听句子,选择最佳答语。
每个句子读两遍(每小题1分,共5分)6.A.Peel the banana.B.Put in the corns.C.Eat.7.A.Bus.B.No,I don’t.C.I like taking the bus.8.A.Three.B.With my mother.C.Next time.9.A.With chicken in it.B.No,I don’t.C.Yes,I do.10.A.One.B.Three.C.Two cups.Ⅲ.听对话,选择最佳选项。
对话读两遍(每小题1分,共5分)11.What salad do they make?A.Apple salad.B.Banana salad.C.Fruit salad.12.How many oranges do they need?A.Two.B.Three.C.Four.13.How many bananas do they need?A.One.B.Two.C.Three.14.How much yogurt do they need?A.One teaspoon.B.Two teaspoons.C.One cup.15.How many apples do they need?A.One.B.Three.C.Two.Ⅳ.听短文,根据所听内容选择正确答案。
短文读两遍(每小题1分,共5分) 16.What do we want to make?A.A banana milk shake.B.Sandwich.C.Popcorn.17.When do we turn on the machine?A.Before we put the corn in.B.After we put the corn in.C.At last.18.How much salt do we need?A.Two spoons.B.One spoon.C.Four spoons.19.How long does the popcorn machine need to work?A.One hour.B.Ten minutes.C.Five minutes.20.If you like dessert,you can put in the machine.A.chocolate.B.ice-cream.C.meat.Ⅴ.单项填空(每小题1分,共15分)21.Thanksgiving is always the fourth Thursday in November.A.inB.onC.atD.for22.—yogurt do you want?—Three cups.A.How muchB.How manyC.How longD.How far23.—do you make fruit salad?—First,cut up the apples,bananas and pears.And then…A.WhenB.WhereC.WhyD.How24.M um wants to watch the CCTV news.Let’s the TV.A.turn downB.turn onC.turn offD.turn up25.Tom,please add some salt the noodles.A.onB.ofC.toD.at26.—I’d like to eat bread.—OK,here you are!A.manyB.one moreC.a piece ofD.two27.After training (训练) for two months,we won the first prize for the competition.A.alwaysB.finallyuallyD.hardly28.—Are there enough carrots?—No,we need two carrots.A.otherB.the otherC.anotherD.the others29.—New Year is coming! We’ll New Year by having parties.—Oh,I can’t wait.A.makeB.hasC.celebrateD.take30.—Let’s make Russian soap.—.A.You are welcomeB.That’s a good ideaC.Thank youD.That’s all right31.—The banana is too big.—You can first.A.cut up themB.cut them upC.cut it upD.cut up it32.Here four bowls water.A.is,ofB.are,forC.is,forD.are,of33.Tell your partner make any noise in class.A.toB.doesn’tC.don’tD.not to34.—It’s winter! What cold weather!—Yes,but it’s time sports.A.to doB.doC.makeD.to make35.—There some bread and bananas on the table.You can eat them for lunch.—OK,I will.A.areB.wasC.isD.wereⅥ.完形填空(每小题1分,共10分)Hello,everyone! I am Alice.Today we have a 36about how to give thanks to our parents in class.Our teacher says we can make some food for 37.We all think it is a good idea.Tom 38to make popcorn.His grandmother knows 39to make popcorn.She can tell him the 40of making it.Gina cooks noodles41,and we all like to eat her noodles.Mike wants to make Russian soup.And he tells us how to make it.First,42some beef and vegetables.Then,cut them up.After that,put them into a pot and add some water.For one more thing,cook them43half an hour and add some salt.I want to make fruit salad.I learned to make it from a book.It is 44.I can do it quickly. Our teacher says if we want to give45to someone,we must put our hearts into it.I will remember that in my mind.36.A.party B.meal C.trip D.discussion B.him C.her D.them38.A.plans B.stops C.forgets D.teaches39.A.how B.when C.where D.why40.A.time B.way C.place D.reason41.A.quietly B.loudly C.well D.badly 42.A.eat B.buy C.grow D.send43.A.to B.at C.for D.with44.A.easy B.difficult C.hot D.cold45.A.wishes B.thanks C.space D.luckⅦ.阅读理解(每小题2分,共30分)AEvery country has its own way of cooking.American people have their way of cooking,don’t they?Most people in the United States like fast food,but if you think that American people don’t like cooking,you are wrong.It’s true that most Americans eat fast food for their breakfast and lunch,but they also think cooking is interesting.Parents see the importance of teaching their children how to cook,and most Americans say that home cooked meals are the best.Americans have their own way of cooking.For example,baking(烘烤) is the most popular way of cooking in America.Most American families have ovens.American cooks pay attention to (注意) the balance of food.In planning a big meal,they try to cook meat,a few vegetables,some bread and often some sweet food.They also like to make the meal look beautiful.There are many kinds of food of different colors,so the meal is healthy and looks beautiful,too.46.Most Americans .A.don’t like cookingB.cook food in the morningC.eat fast foodD.like having a picnic47.Most Americans.A.don’t eat fast food for their breakfast or lunchB.have fast food for their breakfast or lunchC.like to eat fast food for supperD.don’t have breakfast or lunch48.is the most popular way of cooking in the USA.A.BakingB.CuttingC.FryingD.Boiling49.How does an American cook balance different kinds of food?A.He cooks a lot of meat.B.He cooks meat,vegetables,bread and sweet food for a big meal.C.He makes the food delicious.D.He cooks a lot of vegetables.50.Which is TRUE according to the passage?A.The meal looks beautiful because the food is of different colors.B.American people do not like to cook food at home.C.American parents do not like to teach their children to cook.D.Most people in the United States don’t like fast food at all.BDo you know how to make spaghetti(意大利面条) with cream mushroom(蘑菇)sauce(酱汁)? Boil(煮沸)a pot of water and cook the spaghetti in it for 20 minutes.Cut up the onions and garlic(大蒜).Heat a little oil in a pot and cook the onion and garlic for three minutes. Add the mushrooms and cook for one minute.Add the wine,cream and vegetable soup.Cook them for ten minutes.Beat an egg,and add a little water and pour it slowly into the pot.Mix them up for half a minute.Add the beans and tomatoes and stir(搅拌)for two minutes on a low heat.Put the spaghetti on the plates and pour the sauce over the top.51.You should cook for 20 minutes.A.the onions and garlicB.the spaghettiC.the eggD.the beans and tomatoes52.After adding the mushrooms,you should cook for.A.20 minutesB.10 minutesC.half a minuteD.one minute53.What ingredients don’t we need?A.The onions.B.The potatoes.C.The mushrooms.D.The wine.54.The underlined word “Beat” means in this passage.A.蒸B.煮C.打D.加热55.The passage mainly talks about.A.how to make spaghetti with cream mushroom sauceB.how to make mushroom soupC.how to make vegetable soupD.how to cut up tomatoesCThe Spring Festival is the biggest festival for Chinese people all around the world.The celebration usually lasts for 15 days.There are a lot of things to do.On the eve of the Spring Festival,family members get together and have big meals.Their favorite dish on this day is dumplings.Days before the Spring Festival,families will clean their houses.People think cleaning sweeps away bad luck.It makes the house ready for good luck.The color red is everywhere during the Spring Festival.People think red is a happy color and will bring them a bright future.People wear red,too.They decorate(装饰)their houses with pieces of red paper.Kids get a lot of hongbao.It is a red paper bag with money in ually,older people give younger ones hongbao.They think it will bring good luck. The Spring Festiv al is the time to make everybody happy.So don’t say any bad words or do anything that will bring unhappiness to other people.For instance,you’d better not say any bad words like “death”.Don’t break (打破;打碎) anything.People think that it means your luck is r unning out.Also,don’t borrow or lend money on these days.If you have borrowed money,return it before the Spring Festival.根据短文内容判断正(T)误(F)56.Family members get together and have big meals on the eve of the Spring Festival.57.People clean their houses before the Spring Festival because the spring is coming.58.Saying any bad words will bring unhappiness to other people during the Spring Festival.59.Breaking something is good luck on the Spring Festival.60.The main food of this meal is almost always Beijing duck on the Spring Festival.Ⅷ.补全对话(每小题2分,共10分)A:Do you know people in America eat turkey on Thanksgiving Day?B:Yes,I do.And I want to eat it,but I can’t cook it.61A:Of course.62B:What to do next?A:Before putting the turkey into the oven,fill the turkey with this bread mix.B:And then?A:63B:OK.Is that all?A:Not quite.When the turkey is ready,place the turkey on a large plate and cover it with gravy.B:64A:Finally,cut the turkey into thin pieces and eat the meat with vegetables like carrots and potatoes.B:Great! Thanks a lot for your recipe.A:65Ⅸ.根据短文内容完成下列各题(每小题2分,共10分)Do you know how to make delicious rice? Let me tell you!First,you have to buy some good quality(质量) rice.Second,pour two cups of rice into a pot.Third,it is important that you wash the rice only with clean cold water.Pour some cold water into the pot and swirl(搅动) the rice around in it.When the water turns white,pour the water but not the rice.You should repeat this until the water does not turn white.Next,add two cups of water to the pot.Then put the pot on the stove(炉子)and turn the stove on to high.As soon as the water boils,turn the stove down.Finally,wait for about twenty minutes and then turn the stove off.If you follow these easy instructions,it is easy to make a great pot of rice.完成下列句子66.We should wash the rice with .67.According to the passage,the fourth step to make delicious rice is to.选择正确答案68.The underlined word “repeat” means in Chinese.A.停止B.等待C.预备D.重复69.We can find the passage .A.in a newspaperB.on a menuC.in a food magazineD.in a storybook简要回答问题70.How long does it take to cook rice on the stove?____________________________________________________________________________________Ⅹ.根据汉语提示完成句子(每小题1分,共5分)71.For lunch,I like(三明治)and salad.72.There are some(洞)in the wall.73.It’s a hot day today.The(温度) is over 38℃.74.How do people(庆贺)New Year’s Day in your country,Paul?75.How does this(机器)work?Ⅺ.用所给词的适当形式填空(每小题1分,共5分)76.—How many(watermelon)can you see?—Only one.77.(final),she found her keys in her backpack.78.These (travel) are from the USA.79.He made a living by (write) books a few years ago. 80.Finally,cut the turkey into thin (piece) and eat the meat with vegetables like carrots and potatoes.Ⅻ.书面表达(共15分)西红柿炒鸡蛋(scrambled eggs with tomatoes)是一道家常菜,它既美味可口又简单易做。
Unit 8标准检测卷(满分:120分时间:100分钟)听力部分(20分)一、听句子,选择与所听内容相符的图片(每小题1分,共5分)________(1)________(2)________(3)________(4)________(5)二、听句子,选择正确的答语(每小题1分,共5分)6.A.Peel the bananas. B.Put the corn in a bowl.C.Eat the popcorn.7.A.Yes, I don't. B.No, I do. C.Yes, I do.8.A.Two spoons. B.Two. C.A little.9.A.Sandwiches with chicken in it.B.No, I don't. C.Yes, I do.10.A.One. B.Three. C.Two cups.三、听长对话,选择正确的答案(每小题1分,共5分)听第一段对话,完成11~12小题。
11.What is the boy's favorite?A.Lettuce. B.Tomatoes. C.Sandwiches. 12.Does the boy like tomatoes?A.Yes, he does. B.No, he doesn't.C.We don't know.听第二段对话,完成13~15小题。
13.What salad do they make?A.Apple salad.B.Banana salad.C.Fruit salad.14.How many oranges do they need?A.Two. B.Three.C.Four.15.How much yogurt do they need?A.One teaspoon.B.One cup.C.Two teaspoons.四、听短文,完成表格(每小题1分,共5分)笔试部分(100分)五、单项选择(每小题1分,共15分)21.I need two apples. Please ________.A.cut down them B.cut them downC.cut up them D.cut them up22.Mother's Day is________the second Sunday in May in the United States.A.on B.in C.at23.—________ apples do we need to make fruit salad?—Let me think...We need three apples.A.How long B.How oftenC.How much D.How many24.Pour the milk ________ the blender.A.of B.into C.on D.at25.Please ________ the computer with something,or it will get dirty easily.A.play B.wash C.put D.cover26.—Sorry,I'm late.—________ tell me the bus broke down again!A.Never to B.Not C.Don't D.No27.It's time ________ lunch.Let's go together.A.have B.has C.having D.to have28.The boy is sleeping.Please ________ the radio.A.turn up B.turn off C.turn on29.My brother helps me buy ________ and some yogurt.A.five piece of bread B.five pieces of breadsC.five pieces of bread D.five piece of breads30.—Can you finish the work on time?—I think I need ________ ten minutes.A.more B.other C.another D.next31.I had some ________,vegetables and two eggs for dinner.A.rice B.noodle C.banana32.—Can I add tomatoes ________ the shopping list?—No. We have some in the fridge.A.at B.over C.to D.of33.You can't ________ water up with oil.A.mix B.put C.get D.cut34.—Mum,I am hungry. May I have some ________?—Of course. But don't eat too much.A.bread B.noodleC.dumpling D.hamburger35.Here ________three bowls ________rice. Please help yourselves.A.is; of B.is; in C.are; of D.are; in六、完形填空(每小题1分,共10分)(词数:约170;建议用时:6分钟) Ingredients3 cups of strawberries2 small apples1 bag of sugar2 teaspoons of vanilla syrup(香草糖浆)crushed ice(碎冰)Apple Strawberry SlushWash and peel two ________(36) apples. ________(37) the apples into pieces.Wash strawberries and ________(38) them dry.Cut ________(39) strawberries in half and put them in a bowl.Add some sugar and stir(搅拌) them.Put the bowl of strawberries aside(在旁边).Put the apples in a blender; turn it on until there are ________(40)slices of apples left.Pour the apples into a bowl and put the bowl aside.Stir the strawberries and sugar, pour strawberries into the blender and ________(41) the blender.Pour the strawberries into a medium-size bowl and add the apples.Add the vanilla syrup and stir them until they are well mixed.Put some ________(42) in glasses.Fill the ________(43) with the apple and strawberry mixture.Then mix ________(44) all up.Now, just put a spoon in each glass and this ________(45) Apple Strawberry Slush is OK to drink.36.A.big B.small C.medium D.green37.A.Cut B.Add C.Make D.Put38.A.let B.made C.make D.help39.A.a B.an C.the D.one40.A.some B.little C.many D.no41.A.turn on B.turn offC.open D.close42.A.ice B.ices C.salt D.sauce43.A.blender B.glass C.bowl D.bag44.A.they B.them C.it D.its45.A.boiled B.cool C.hot D.warm七、阅读理解(每小题2分,共30分)A(2015·新疆)(词数:约140;建议用时:4分钟)A Big UmbrellaNancy:I saw seven girls in one umbrella and none of them got wet.Taney:Oh, that must be a very big umbrella.Nancy:No, it wasn't raining.A Good BoyLittle Robert asked his mother for two cents.“What did you do with the money I gave you yesterday?”“I gave it to a poor old woman,” he said.“You're a good boy,” said the mother proudly.“Here are two more cents.But why are you so interested in the old woman?”“She is the one who sells candies.”Break a Mirror“Why are you so happy, Jason?” Laura asked the 98-year-old man.“I broke a mirror,” he replied.“But that means seven years of bad luck.”“I know,” he said happily.“Isn't it wonderful? I can live for another seven years.”46.The three passages above are all ________.A.jokes B.notices C.news D.letters 47.The seven girls didn't get wet because ________.A.the umbrella was big enoughB.the seven girls wore their raincoatsC.it wasn't raining at allD.it wasn't a heavy rain48.Little Robert spent the money ________.A.helping the poor old ladyB.buying candies for himselfC.helping his momD.buying gifts for his mom49.________ broke the mirror.A.Nancy B.Laura C.Robert D.Jason 50.Which of the following is true?A.Robert's mother was very kind.B.Little Robert would get four cents every day.C.Because of breaking the mirror, Jason lived to be 105 years old.D.Laura would often break a mirror after hearing Jason's words.B (词数:约200;建议用时:7分钟)Dear Han Lin,I'm really glad to receive your e-mail. You said you were learning to cook. Is it interesting? I think if you want to keep healthy,food is very important. You'll be better if you try all kinds of food,especially vegetables and fruit.I eat them every day.You asked me how to make a milk shake. There are different kinds of milk shakes,such as apple milk shakes, banana milk shakes, carrot milk shakes and watermelon milk shakes. Apple milk shakes are my favorite,because apples and milk are both good for our health. Before starting,we need an apple,a cup of milk,some ice-cream and two teaspoons of honey. Of course, you need a blender. Now, Let's start. First, peel an apple and cut it up. Next, put the apple, the milk, some ice-cream and two teaspoons of honey into the blender. Then turn on the blender. Keep it going for only one minute. Finally,pour the apple milk shake into a glass and drink it. It's delicious!I want to learn how to make some Chinese food,such as dumplings, noodles and zongzi. Could you teach me?Write soon!Yours,Maria51.What is the letter about?A.Good eating habits.B.A good lifestyle.C.How to look after your health.D.How to make a milk shake.52.In this e-mail, Maria mentioned ________ kinds of milk shakes.A.three B.four C.five D.six53.Of all the milk shakes mentioned in the letter, Maria likes ________ best.A.banana milk shakes B.watermelon milk shakesC.carrot milk shakes D.apple milk shakes54.Which of the following is true?A.Han Lin is showing Maria how to make dumplings.B.Han Lin wants Maria to learn to make noodles.C.Maria can cook Chinese food.D.Maria eats many different kinds of food, especially vegetables and fruit every day. 55.Which of the following is NOT mentioned in the e-mail?A.A blender and a glass.B.Noodles and dumplings.C.Sugar and coffee.D.Milk and an apple.C(词数:约150;建议用时:5分钟)Chocolate is one of the most popular foods in the world. Many people choose it as a birthday gift. When a child gets a box of chocolate as a gift,he may feel excited. It is popular among people,especially among children.Chocolate tastes nice. People eat chocolate candy,chocolate cake,and chocolate cookies. They also drink hot chocolate.Chocolate is made from cocoa beans(可可豆).Here are some interesting things about cocoa beans.In the past,the Mayas(玛雅人)and the Aztecs(阿兹特克人)used cocoa beans as money because they were small,easy to carry,and not easy to find.A turkey cost ninety cocoa beans and a small rabbit cost thirty cocoa beans.They also cooked the beans and mixed them with water.Sometimes they added corn(玉米)or hot pepper(胡椒粉).They did not add sugar.The drink was very expensive.Only rich people could afford it.56.There are some different kinds of foods.Which is NOT mentioned in the passage?A.Chocolate candy. B.Chocolate cake.C.Chocolate cookies. D.Chocolate ice-cream.57.The Mayas and the Aztecs used cocoa beans as money for several reasons.Which is NOT one of the reasons?A.They were small.B.They were easy to carry.C.They were not easy to find.D.They tasted nice.58.If a person wanted to buy two turkeys and three small rabbits,he needed to pay________for them.A.120 cocoa beans B.240 cocoa beansC.270 cocoa beans D.360 cocoa beans59.When people cooked the beans,they added something EXCEPT(除了)________.A.corn B.hot pepper C.sugar D.water60.Which of the following is TRUE according to the passage?A.The chocolate is not popular among children.B.People never drink hot chocolate.C.The Mayas and the Aztecs added sugar to the beans.D.The Mayas and the Aztecs mixed the beans with water.八、补全对话(每小题1分,共5分)(Xiao Hong and Xiao Fang are talking about cooking a whole turkey.)Hong:Do you know people in the Western countries eat turkey on Thanksgiving Day?Fang:Yes, I do.It's said that it's very delicious.I want to eat, but I can't cook it.________(61)Hong:Of course.________(62)Fang:What to do next?Hong:Before putting the turkey into the oven, you should fill it with chopped-up (切碎的) pieces of bread and herbs.________(63)Fang:And then?Hong:Put the turkey in an oven to cook for some hours.Fang:Can I cook it in the pan?Hong:Sure.Some people use a special pan in order to keep the meat moist(湿润的).Fang:________(64)Hong:Yeah.Finally when the turkey is ready, you'll cut it into pieces.Fang:Thank you very much for your recipe(烹饪法).Hong:________(65)A.This mixture(混合物) is called “stuffing(填料)”.B.I'm sorry. I don't like the recipe.C.Could you tell me how to cook it?D.It's my pleasure.E.First, we should clean the turkey.F.Sounds good!G.How can I cook a turkey?九、词汇运用(每小题1分,共10分)(一)根据句意及首字母或汉语提示完成单词66.Let's make a banana milk s________.67.As a ________(传统的) festival, Dragon Boat Festival is becoming more and more popular.68.You can put the food on the p________.69.I think ________(食盐) looks like sugar.70.These t________ are visiting the museum.No one takes photos there.(二)用所给词的适当形式填空71.I like eating ________(sandwich) and cheese.72.________ (final),they finished their work.73.Honey ________ (be) good for our health.74.We ________________(celebrate) my grandfather's 80th birthday next Saturday. 75.Jim was angry, because the waiter forgot ________(serve) his meal.十、任务型阅读(每小题2分,共10分)(词数:约100;建议用时:6分钟)阅读下面短文,根据要求完成下面各小题。
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。
人教版八年级物理上册单元测试卷(全套附答案)第一章声现象一、单项选择题(每题3分,共24分)1、在电视机的遥控器上,有以下几个按钮(图标),如下图,其中控制音量(响度)大小的是:(B)2、晚上当你在家复功课,准备期中考试时,邻居正在引吭高歌,对你的研究产生干扰,则下列措施中无效的是:(B)3、在一只玻璃杯中先后装入不同量的水,用细棒轻轻敲击,会听到不同频率的声音。
与此类似,当医生在给病人检查腹部是否有积水时,常会用手轻轻敲击患者腹部,细细倾听其发出的声音,此为“叩诊”。
这主要是根据什么来判断腹部是否有积水的?(B)4、在城市高架道路的某些路段可以看到两侧设有3m~4m高的透明板墙,如图1所示,安装这些板墙是为了(D)5、剧院及音乐厅,四周墙壁常挂呢绒帘幕,同时墙壁会做成凹凸不平的像蜂窝似的,这是为了(C)6、请你用物理学的准确用语来“翻译”生活用语,有利于我们把握事物的本质,“引吭高歌”和“低声细语”,这里的高与低指的是(B)7、我国已进行“XXX”五号载人航天飞船的试验,XXX乘坐宇宙飞船遨游太空,不久,“神舟”六号将会将更多的宇航员带上太空,宇航员在太空舱中可以直接对话,但在飞船外作业时,他们之间不能直接对话,必须借助电子通信设备进行交流,其原因(B)8、如图2天坛公园的回音壁是我国建筑史上的一大奇迹,回音壁应用的声学原理是(A)二、填空题9、如图3所示,用硬纸片把一个喇叭糊起来,做成一个“舞台”.台上小人在音乐声中翩翩起舞,这个现象说明声音可以通过固体传播。
10、图4、图5是两种声音的波形,从图可知:图4是低音的波形,理由是振动频率较低。
1.图3和图5的波形相同,这是因为它们表示的是同一个声音的波形。
图4和图5也是相同的波形,只是图5放大了一些以便更清晰地观察。
2.图6展示的是一个招牌,它的意思是标识出店铺的名称和类型。
3.在城市繁华路段旁常常竖立有噪声显示装置,如图7所示。
图中数字表示的是噪声的分贝值。
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。
初二 (上) 8单元测试 (A卷)一、语音知识 (5分) 找出下列各组划线部分读音不同于其他三个的词,将其字母标号填入题前括号中。
[]1. A. answer B. word C. sweater D. water[]2. A. front B. strong C. body D. dog[]3. A. arm B. quarter C. part D. hard[]4. A. hand B. back C. face D. Saturday[]5. A. next B. left C. dress D. begin二、单词拼写 (10分) 以下所给单词均不完整,从A、B、C 中选出适当的字母或字母组合,使其完整与正确。
[]6. t __ ch A. aw B. au C. ou[]7. p __ t A. ir B. ur C. ar[]8. __ o __ y A. p ... d B. b ... d C. g ... d[]9. dr ___ A. aw B. uw C. ow[]10. h __ d A. ea B. ia C. ae三、词组汉译 (10分) 将下列词组翻译成汉语。
11. put the hand behind the back ____________________12. in the middle of the classroom ___________________13. pass ... from one to another _____________________14. keep one's eyes closed ________________________15. the other students in the class ____________________四、完成句子 (15分) 根据所给汉语完成下列句子,每空一词。
16. 下课后我们都喜欢做游戏。
初二 (上) 8单元测试 (A卷)
一、语音知识 (5分) 找出下列各组划线部分读音不同于其他三个的词,
将其字母标号填入题前括号中。
[]1. A. answer B. word C. sweater D. water
[]2. A. front B. strong C. body D. dog
[]3. A. arm B. quarter C. part D. hard
[]4. A. hand B. back C. face D. Saturday
[]5. A. next B. left C. dress D. begin
二、单词拼写 (10分) 以下所给单词均不完整,从A、B、C 中选出适当的字母或字母组合,使其完整与正确。
[]6. t __ ch A. aw B. au C. ou
[]7. p __ t A. ir B. ur C. ar
[]8. __ o __ y A. p ... d B. b ... d C. g ... d
[]9. dr ___ A. aw B. uw C. ow
[]10. h __ d A. ea B. ia C. ae
三、词组汉译 (10分) 将下列词组翻译成汉语。
11. put the hand behind the back ____________________
12. in the middle of the classroom ___________________
13. pass ... from one to another _____________________
14. keep one's eyes closed ________________________
15. the other students in the class ____________________
四、完成句子 (15分) 根据所给汉语完成下列句子,每空一词。
16. 下课后我们都喜欢做游戏。
We all like ________ _________ after class.
17. 李雷的手里有什么?
________ ___________ Li Lei's hands?
18. 谁站在教室中间?
Who's ________ _________ the middle of the classroom? 19. 陈华坐在我的右边。
Chen Hua _______ ________ my right.
20. 在我们学校旁边有一座公园。
There's a park _______ __________ our school.
五、单项选择 (30分) 从A、B、C、D 四个选项中,选出可以填入空白处的
正确答案。
[]21. Liu Mei sits ____ the back row.
A. in
B. on
C. at
D. to
[]22. Teachers often stand _____ the class.
A. in
B. on
C. before
D. in front of
[]23. Where ______ Mr Li work?
A. do
B. does
C. is
D. are
[]24. Where _______ the twins sitting?
A. do
B. does
C. is
D. are
[]25. I have two pencils. One is red, ______ is blue.
A. other
B. others
C. the other
D. the others
[]26. Who's ______ , Wei Hua, Han Yan or Tian Li?
A. tall
B. others
C. tallest
D. the tallest
[]27. We all love _____ games.
A. play
B. plays
C. to play
D. to playing
[]28. Mr Wu _____ free tomorrow.
A. is going to
B. is going to be
C. is shall
D. shall
[]29. Look at this doll. _____ is it?
A. Whose
B. Who's
C. What's
D. Where's
[]30. ____What are the students doing?
____They ______ an English class.
A. have
B. has
C. are going to have
D. are having
六、阅读理解 (30分) 阅读下面短文,完成下列座位表。
This is a very small classroom. Oliver sits in the middle of the
back row. Peter sits next to him on the right, and Robert sits next
to Peter. Tom its between Jack and Oliver. Sandy sits in front of Jack and behind John.
Mary's seat is in the middle of the middle row. She has Bill on
her left and Nancy on her right. Susan sits at the end of the same row. Helen is in front of Mary. Alice sits next to Helen. Jane sits next to Alice. There is a seat between Helen and John, and Betty sits
there. Notes: at the end of 在…末了between 在 (两者) 之间
31. ____ 32. ____ 33. ____ 34. ____ 35. ___
36. ____ 37. ____ 38. ____ 39. ____ 40. ____
41. ____ 42. ____ 43. ____ 44. ____ 45. ____。