练习5_2

八年级1Ⅰ.词汇（10分）A）根据首字母及句意完成句子（5分）1. The teacher came in with a big s_____. She was so happy.2. Stupid is another way of saying s_____.3. The medicine tasted b_____ and the boy spat it out(吐出)。

4. Follow the doctor’s a______ and you will get well soon.5. Think it over before making important d_____, especially when you are in a bad mood.B) 根据句意及所给汉语意思，完成句子（5分）1. My father ______ ______ ______ (对……感到满意) my good results at school.2. We will ______ ______(轮流) to clean our classroom.3. You can ______ ______(打电话给) me if you get to Fuzhou. I will meet you.4. Our math teacher is very patient and explains things to us __________ _____ _____. (一次又一次)。

5. ______ ______ ______ (别急)! We will help you.Ⅱ.单项选择（15分）( ) 1. The dish _____ nice.A. soundsB. smellsC. feels( ) 2. I felt tired ______ I worked late last night.A. becauseB. whenC. if( ) 3. He is not as ______ as his younger brother.A. strongB. strongerC.strongest( ) 4. — My watch ______.— Don’t worry. Let’s go to the Lost and Found.A. is lostB. is brokenC. has found( ) 5. Don’t worry. There is ______ time to go.A. someB. fewC. little( ) 6. He said ______ his English teacher last year.A. thanks toB. thanks forC. thank( ) 7. My mother usually gets used to ______ late.A. go to bedB. going to bedC. getting to the bed( ) 8. The smile on her face shows that she is ______ her work.A. worried aboutB. pleased withC. sorry for( ) 9. All the children like Mr. White very much because he often makes them _____.A. laughedB. laughC. laughing( ) 10. We must ______ our classmates at school.A. got along withB. get along withC.get along( ) 11. The old man feels ______ and ______.A. alone; disappointedB. lonely; disappointedC. lonely; disappointing( ) 12. I hope everything ______ well.A. goesB. goC. gone( ) 13. The teacher explained it ______ the students carefully.A. toB. withC. at( ) 14. Listening to music is a good way to help us be more ______ .A. relaxedB. relaxC. relaxing( ) 15. Think it over before ______ important decisions.A. to makeB. makeC. makingⅢ.句型转换：按要求完成下列句子（5分）1. We are sure that she can swim well. (同义句)We are sure that she _____ _____ _____ swim well.2. Sue is 1.45 meters. Helen is 1.45 meters, too. (合并为一句)Sue is _____ tall _____ Helen.3. We decided to go to see a movie this Sunday. (改为否定句)We decided ______ ______ go to see a movie this Sunday.4. She didn’t pass the exam, because she didn’t work hard. (就划线部分提问)______ ______ ______ ______ the exam?5. I feel better today. (就划线部分提问)______ ______ you feel today?Ⅳ.综合填词（10分）根据短文内容用框格内的适当形式填空go, thin, cook, minute, look, eat, take, feel, ask, healthOne day, Mrs. Brown 1 to see the doctor. She said she 2 tired every time after she did the 3 . The doctor 4 over Mrs.Brown for a few 5 , then the doctor said, “I’m afraid you are too fat.”“Too fat?”asked Mrs.Brown. The doctor said Mrs.Brown 6 too much food and she didn’t 7 much exercise. Mrs.Brown 8 the doctor what to do. The doctor said, “If you want to be 9 and keep 10 , you have to eat less food.”1.________2.________3.________4.________5.________6.________7.________8.________9.________ 10.________Ⅴ. 完形填空（10分）Many people like to read the Guinness Book of World Records (吉尼斯世界纪录大全), and some people want to 1 in it. 2 do people get their 3 in the book? They do something 4 and 5 , such as making the world’s largest cake with more than 54,000 eggs.For many people, it is fun to make 6 records. It is exciting. But who eats the 7 ?While some people are making world records, 8 do not have much food 9 . Hunger (饥饿) is a very serious problem in many places. How many 10 people do not have enough money to buy good food? How many children go to bed without dinner? The answer is “Too many”.( ) 1. A. join B. is C. be D. 不填( ) 2. A. How B. What C. When D. Why( ) 3. A. food B. names C. rights D. records ( ) 4. A. new B. old C. important D.interesting ( ) 5. A. nice B. difficult C. different D. good ( ) 6. A. their B. its C. his D. her( ) 7. A. cake B. food C. it D. that( ) 8. A. they B. people C. others D. we( ) 9. A. to eat B. to buy C. to have D. to own ( ) 10. A. strong B. old C. young D. weakⅦ.阅读理解（15分）(A)A man saw a boy standing beside a lake with a mirror(镜子).“Excuse me,” he said“but could you tell me what you’re doing?”“I’m fishing.”“With a mirror? Could you tell me how it works?”the man asked.“OK, but I want five dollars.”The man wanted to know the secret very much, so he handed the boy the money.“Now show me how it works,” he said. “Well”, the boy began, “you hold(拿)the mirror towards the water, and when a fish goes by, the sunlight in the mirror gives him a surprise. He stops and doesn’t know what to do, and then you catch him at once. ”The man was surprised, “Can you really catch fish with the mirror? How many did you catch?”“You’re the fifth today!” replied the boy.阅读上面短文，然后判断句子正(T)误(F)。

直角三角形全等的判定及角平分线的性质【知识要点】1、直角三角形全等的判定方法有5种：SAS 、ASA 、AAS 、SSS 、HL ．在应用中要结合具体图形，分辨出一只条件，对照判定方法，择简选用，有时对斜边、直角边的全等的方法忽略应用．2、角平分线的性质定理及其逆定理（1）角平分线上的点到角的两边的距离相等；（2）角的内部到角的两边距离相等的点在角的平分线上．【例题精讲】【例题1】如图所示，在ABC ∆中，是BC 的中点，AC DF AB DE ⊥⊥，，垂足分别为E ，F ，BE=CF 。

B（1）图中有几对全等的三角形？请一一列出；（2）选择一对你认为全等的三角形进行证明。

【练习1—1】已知ABC ∆和'''C B A ∆，0'90=∠=∠C C ，AC=''C A ，要判定ABC ∆ ≌'''C B A ∆，必须添加条件为① 或② 或③ 或④ ．【练习1—2】如图所示，四边形ABCD 中，CB=CD ，035=∠BAC ，则BCD ∠的度数为 ．【例题2】已知在ABC ∆和DEF ∆中，090=∠=∠D A ，则下列条件中不能判定ABC ∆和DEF ∆全等的是（ ）A 、AB=DE ，AC=DFB 、AC=EF ，BC=DFC 、AB=DE ，BC=EFD 、EF BC F C =∠=∠，【练习2—1】如图所示，已知AB=CD ，BF DE AC BF AC DE =⊥⊥，，，则AB 与CD 平行吗？为什么？CA【例题3】如图所示，ABC ∆ ≌'''C B A ∆，AD ，''D A 是它们的高，则AD 与''D A 相等吗？请说明理由．D'C'B【练习3—1】如图所示，有一批边角余料，其中090=∠=∠C A ，AB=AD ．现在要把每块这样的材料都加工成正方形，并且希望材料利用率尽量高些，怎样做最好呢？B FE D【例题4】如图所示，ABC ∆是等腰直角三角形，090=∠C ，AD 是BAC ∠的平分线，AB DE ⊥于点E ，若AB=10，求DEB ∆的周长．A B【练习4—1】如图所示，BD 是ABC ∠的平分线，AB DE ⊥于E ，BC DF ⊥于F ， cm BC cm AB cm S ABC 1218362===∆，，，求DE 的长．B【例题5】某市有一块由三条马路围成的三角形绿地，弦准备在其中建一小亭供人们小憩，使小亭中心到三条马路的距离相等，试确定小亭中心的位置．【练习5—1】如图所示，要在S区建一个集贸市场，使它到公路、铁路距离相等，离公路与铁路交叉处500米，这个集贸市场应建于何处（在图上标出它的位置，比例尺为1:20000）S【练习5—2】如图所示，在ABCME⊥，∆中，M是BC的中点，ABMD⊥，AC 垂足分别为点D，E，且BD=CE．求证：B（1）点M在BAC∠的平分线上；（2）AB=AC．。

新版-牛津译林版2021-2021学年小学英语三年级上册Unit 5 Look at me!同步练习B一、写出以下字母的左邻右舍。

1.在四线三格上写出以下字母的左邻右舍。

〔1〕________ K ________〔2〕________ Jj ________〔3〕________ Nn ________〔4〕________ Pp ________二、选择不同类的单词。

2.选择不同类的单词〔〕A. MikeB. TimC. Helen3.选择不同类的单词〔〕A. brotherB. motherC. Miss4.选择不同类的单词〔〕A.capB.redC.jacket5.选择不同类的单词〔〕A. heB. sheC. me6.选择不同类的单词〔〕A. greatB. lookC. nice三、上下文或所给情境，选择正确答案。

7.—Look at my shirt.—__________.A. It's greatB. Red8.想告诉波比，你的T恤衫是红色的，你可以说：A. My T-shirt is red.B. My T-shirt is great.9.当你晚上看见你的朋友，可以说：A. Good morning.B. Good evening.10.让刘涛猜猜你的T恤衫时什么颜色时，你说：A. Look at my T-shirt.B. What colour is my T-shirt?11.想让别人看你时，你会说：A. Look at me.B. This is me.12.字母P的小写有几笔？A. 1笔。

B. 2笔。

13.别人夸赞你的新衣服很漂亮时，你可以说：A. It's nice.B. Thank you.四、连词成句。

14.① at ② Lo ok ③ me (连词成句)15.① Look ② at ③ new ④ T-shirt ⑤ my (连词成句)16.① colour ② is ③ my ④ What ⑤ cap (连词成句)17.① red ② My ③ jacket ④ is (连词成句)18.① all ② They ③ great ④ look (连词成句)五、阅读理解19.阅读对话，选择最正确答案。

Directions:Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)Given the advantages of electronic money, you might think that we would move quickly to the cashless society in which all payments are made electronically. ___1___, a true cashless society is probably not around the corner. Indeed, predictions of such a society have been ___2___ for two decades but have not yet come to fruition. For example, Business Week predicted in 1975 that electronic means of payment “would soon revolutionize the very ___3___ of money itself,” only to ___4___ itself several years later. Why has the movement to a cashless society been so ___5___ in coming?Although e-money might be more convenient and may be more efficient than a payments system based on paper, several factors work __6___ the disappearance of the paper system. First, it is very ___7___ to set up the computer, card reader, and telecommunications networks necessary to make electronic money the ___8___ form of payment. Second, paper checks have the advantage that they ___9___ receipts, something that many consumers are unwilling to ___10___. Third, the use of paper checks gives consumers several days of "float"-it takes several days ___11___ a check is cashed and funds are ___12___ from the issuer's account, which means that the writer of the check can earn interest on the funds in the meantime. ___13___ electronic payments are immediate, they eliminate the float for the consumer.Fourth, electronic means of payment ___14___ security and privacy concerns. We often hear media reports that an unauthorized hacker has been able to access a computer database and to alter information ___15___ there.Because this is not an ___16___ occurrence, unscrupulous persons might be able to access bank accounts in electronic payments systems and ___17___ funds by moving them from someone else’s accounts into their own. The ___18___ of this type of fraud is no easy task, and a whole new field of computer science has developed to ___19___ security issues. A further concern is that the use of electronic means of payment leaves an electronic ___20___ that contains a large amount of personal data on buying habits. There are worries that government, employers, and marketers might be able to access these data, thereby encroaching on our privacy.1. [A] However [B] Moreover [C] Therefore [D] Otherwise2. [A] off[B] back [C] over [D] around3. [A] power [B] concept [C] history [D] role4. [A] reward [B] resist [C] resume [D] reverse5. [A] silent [B] sudden [C] slow [D] steady6. [A] for [B] against [C]with [D] on7. [A] imaginative [B] expensive [C] sensitive [D] productive8. [A] similar [B] original [C] temporary[D] dominant9. [A] collect [B] provide [C] copy [D] print10. [A] give up [B] take over [C] bring back [D] pass down11. [A] before [B] after [C] since [D] when12. [A] kept [B] borrowed [C] released [D] withdrawn13. [A] Unless [B] Until [C] Because [D] Though14. [A] hide[B] express [C] raise [D]ease15. [A] analyzed [B] shared [C] stored [D] displayed16. [A] unsafe [B] unnatural [C] uncommon [D] unclear17. [A] steal [B] choose [C] benefit [D] return18. [A] consideration [B] prevention [C] manipulation [D] justification19. [A] cope with [B] fight against [C] adapt to [D] call for20. [A] chunk [B] chip [C] path [D] trailDirections:Read the following four texts. Answer the questions below each text by choosing A, B, C or D.Many people talked of the 288000new jobs the Labor Department reported for Jure along with the drop in the unemployment take to 6 J percent. at good news. And they were right. For now, it appears the economy is creating jobs at a decent pace. We still have a long way to go to get back to full employment but at least we are now finally moving forward at a faster pace.However, there is another important part of the jobs picture that was largely overlooked. There was a big jump in the number of people who report voluntarily working part-time. This figure is now 830000(44 percent)above its year ago level.Before explaining the connection to the Obamacare, it is worth making an importantdistinction. Many people who work part-time jobs actually want full-time jobs. They take part-time work because this is all they can get. An increase in involuntary part-time work is evidence of weakness in the labor market and it means that many people will behaving a very hard time making ends meet.There was an increase in involuntary part-time in June but the general direction has been down. Involuntary part-time employment is still far higher than before the recession but it is down by 640000 (7.9 percent) from its year ago level.We know the difference between voluntary and involuntary part-time employment because people tell us. The survey used by the Labor Department asks people if they worked less than 35hours in the reference week. If the answer is “yes.” they are classified as working part-time. The survey then asks whether they worked less than 35 hours in that week because they wanted to work less than full time or because they had no choice. They are only classified as voluntary part-time workers if they tell the survey taker they chose to work less than 35 hours a week.The issue of voluntary part-time relates to Obamacare because one of the main purposes was to allow people to get insurance outside of employment. For many people, especially those with serious health conditions or family members with serious health conditions before Obamacare the only way to get insurance was through a job that provided health insurance.However, Obamacare has allowed more than 12 million people to either get insurance through Medicaid or the exchanges. These are people who may previously have felt the need to get a full-time job that provided insurance in order to cover themselves and their families. With Obamacare there is no longer a link between employment and insurance.36. Which part of the jobs picture was neglected?A. The prospect of a thriving job market.B. The increase of voluntary part-time jobs.C. The possibility of full employment.D. The acceleration of job creation.37. Many people work part-time because they _____________.A. prefer part-time jobs to full-time jobsB. feel that is enough to make ends meetC. cannot get their hands on full-time jobsD. haven' t seen the weakness of the market38. Involuntary part-time employment in the US _____________.A. is harder to acquire than one year agoB. shows a general tendency of declineC. satisfies the real need of the joblessD. is lower than before the recession39. It can be learned that with Obamacare ___________.A. it is no longer easy for part-timers to get insuranceB. employment is no longer a precondition to get insuranceC. it is still challenging to get insurance for family membersD. full-time employment is still essential for insurance40. The text mainly discusses ____________.A. employment in the USB. part-timer classificationC. insurance through MedicaidD. Oba macare’s troubleDirections：Read the following text and match each of the numbered items in the left column to its corresponding information in the right column. There are two extra choices in the right column.（10 points）[A] Live like a peasant[B] Balance your diet[C] Shopkeepers are your friends[D] Remember to treat yourself[E] Stick to what you need[F] Planning is everything[G] Waste not, want notThe hugely popular blog the Skint Foodie chronicles how Tony balances his love of good food with living on benefits. After bills, Tony has £60 a week to spend, £40 of which goes on food,but 10 years ago he was earning £130,000 a I year working in corporate communications and eating at London's betst restaurants'" at least twice a week. Then his marriage failed, his career burned out and his drinking became serious. "The community mental health team saved my life. And I felt like that again, to a certain degree, when people responded to the blog so well. It gave me the validation and confidence that I'd lost. But it's still a day-by-day thing." Now he's living in a council flat and fielding offers from literary agents. He's feeling positive, but he'll carry on blogging - not about eating as cheaply as you can - "there are so many people in a much worse state, with barely any money to spend on food" - but eating well on a budget. Here's his advice for economical foodies.41._____________________Impulsive spending isn't an option, so plan your week's menu in advance, making shopping lists for your ingredients in their exact quantities. I have an Excel template for a week of breakfast, lunch and dinner. Stop laughing: it's not just cost effective but helps you balance your diet. It's also a good idea to shop daily instead of weekly, because, being-human, you'll sometimes change your mind about what you fancy.42. ______________________This is where supermarkets and their anonymity come in handy. With them, there's not the same embarrassment as when buying one carrot in a little greengrocer. And if you plan properly, you'll know that you only need, say, 350gof shin of beef and six rashers of bacon, not whatever weight is pre-packed in the supermarket chiller.43. ______________________You may proudly claim to only have frozen peas in the freezer - that's not good enough. Mine is filled with leftovers, bread, stock, meat and fish. Planning ahead should eliminate wastage, but if you have surplus vegetables you'll do a vegetable soup, and all fruits threatening to "go off' will be cooked or juiced.44. ______________________Everyone says this, but it really is a top tip for frugal eaters. Shop at butchers, delis and fish-sellers regularly, even for small things, and be super friendly. Soon you'll feel comfortable asking if they've any knuckles of ham for soups and stews, or beef bones, chicken carcasses and fish heads for stock which, more often than not, They will let you have for free.45. ______________________You won't be eating out a lot, but save your pennies and once every few months treat yourself to a set lunch at a good restaurant - £1.75 a week for three months gives you £21 - more than" enough for a three-course lunch atMichelin-starred Arbutus. It's £16.95 there - or £12.99 for a large pizza from Domino's: I know which I'd rather eat.Directions:Translate the following text into Chinese. (15 points)I can pick a date from the past 53 years and know instantly where I was, what happened in the news and even the day of the week, I’ve been able to do this, since I was four.I never feel overwhelmed with the amount of information my brain absorbs. My mind seems to be able to cope and the information is stored away neatly. When I think of a sad memory, I do what everybody does – try to put it to one side. I don't think it's harder for me just because my memory is clearer. Powerful memory doesn't make my emotions any more acute or vivid. I can recall the day my grandfather died and the sadness I felt when we went to the hospital the day before. I also remember that the musical Hair opened on Broadway on the same day – they both just pop into my mind in the same way.Directions:Write your essay on ANSWER SHEET. (15 points)You should1) interpret the chart, and2) give your comments.You should write about 150 words. (15points)。