初二英语Unit17Youmustbemorecareful人教（朗文）.doc

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1、初二英语Unit 17 You must be more careful人教版朗文【本讲教育信息】一. 教学内容：Unit 17 You must be more careful二. 重点、难点1. 情态动词must 的用法2. 时间状语从句3. If 引导的条件状语从句三. 具体内容：1. 情态动词must 的用法1must表达义务You must return this book to the library by the end of this week. She was very weak, so we had to send her to the hospital.注意： “must

2、常用于表达“必须；非不可的义务观念，没有过去式，所以要表达过去的“必须通常都使用“had + to V。 must通常表示主观意愿，have to通常表示客观原因。2must表达推测，用在肯定句中He must be a Chinese. He must have cleaned the room. 他一定已经清扫了房间。must + have + done. 表示对过去一件事情的猜想3“must表达禁止must not +VYou must not park car in front of the gate.注意：“Must?的一般疑问句，通常视情况之需要可作下面两种答复Must I go

3、with him?No, you mustnt.No, you neednt.=No, you dont have to.2. 时间状语从句时间状语从句是由when, before, after, until等引导的从句，用来说明主句所发生的时间。时间状语从句一般放在主句之后，假设放在主句之前一般要在状语结束时加一逗号。 When I was ten years old, I began to study English.要掌握状语从句的用法，必须注意主句与从句的时态配合。例：Lucy went to bed after she finished her homework.When the l

4、ights are red, you must stop. Dont say that before you look at the picture.3. If 引导的条件状语从句条件状语从句是由连词if引导“主将从现。If you dont catch the bus, youll go there on foot. You will be late for school if you dont get up now.If Im free, Ill go with you.If it doesnt rain tomorrow, well go to visit the Great Wall.

5、 4. nearly 与almost 的辨析1almost 后可跟never, no, none ,nobody, nothing等具有否认意义的词，而nearly 那么不能。Almost no one believe him.Almost no one got to school on time yesterday.2在more than, any，too 之前通常用almost，而不用nearly，如：Almost more than ten students failed in the exam. Almost any one can do it. 3nearly之前可用very ,no

6、t ,pretty 修饰，而almost 那么不能，如：It is very nearly dark. Lets go home.天快黑了，咱们回家吧。4almost 可用来修饰表示感情或心理状态的动词、形容词，而nearly一般不能，如：I almost think what he said is right.我几乎认为他所说的话是对的。5. She stood up and took his arm. take ones arm 抓住某人的胳膊take 的用法take care=be careful, look outtake ones time take exercise take ca

7、re of take a phototake a rest take a look take ones seat take awaytake down take turns take a walk6. If you dont want to go alone , Ill go with you. alone的用法及与lonely 的区别alone“ 单独的，一个人的， 表示客观上无人陪伴，且只能作表语。He was alone in the room.He likes living alone by himself.lonely 那么表示主观上的感到孤独，寂寞She was alone, bu

8、t she didnt feel lonely.7. Someone telephoned us to complain about it.telephone “打 call sb. ring sb. up make a telephone call give sb. a ringcomplain 不及物动词 表示抱怨，诉苦， 常与 about , of 连用She complained of his carelessness.She complained that he did not work hard.8. Mr. Smith said he did not want to quarre

9、l with the policeman.quarrel with sb about sth 与某人吵架They quarrelled among themselves.have a quarrel with sb about sth.make up a quarrel 言归于好9. You mustnt eat anything until you see the doctor.此句中的notuntil表示“不到不或“直到才。until引导一个时间状语从句。They didnt go home until they finished the work.The students didnt s

10、top talking until the teacher came in.10. Its too dangerous to cross.此句中的“tooto是“太以致于不能的意思。too后为形容词，to后面为不定式。此句型是否认的意思。My brother is too young to go to school. The box is too heavy to carry.11. 本单元重点短语 waiting room 候诊室 a queue jumper 夹塞的人be pleased 快乐be careful 小心 be on a visit to 访问 get ready for 准

11、备好stand in line 站队 wait in a queue 在队中等待laugh at 嘲笑 take ones arm 抓住某人的胳膊wait for ones turn等着轮到in the city of 在城里in the country 在农村 too to 太以致于不能at the head of 在排头 at last 最后【典型例题】1. You _ play on the road. Its dangerous.A. must B. may C. mustnt D. neednt答案：C解析：“must表达禁止must not +V2. Hes _ a visit _

12、 Changchun.A. on, on B. to, for C. on, for D. on, to答案：D解析：on a visit to sw 表示 be visiting sw 正在某地参观3. You_ turn off the lights_ you leave the room.A. may, after B. must , when C. can, before D. may , before答案：B解析：must表达义务，你一定要在走的时候关灯。4. It is _, _?A. nothing important, is it B. important nothing, i

13、s itC. nothing important, isnt it D. important nothing , isnt it答案：A解析：反意疑问句前半句是否认的nothing， 后面要用肯定5. He will come to see you if he _ free next week.A. will be B. be C. is D. are 答案：C解析：If 引导的条件状语从句当主句为将来时时，从句只能用一般现在时【模拟试题】答题时间：40分钟一. Finish off the sentences with the proper words1. She doesnt live i

14、n the town. She is only a _visit2. If you jump the queue , other people will not be_please.3. This film is very _, all the students are _interestin it.4. How about_goout for a walk after supper.5. The girl does her homework _carethan her brother.6. It took me only five _minuteto walk there.7. “Keep

15、_, please. The doctor said to us_quiet8. Youd better _not putthe dirty shoes here.9. I think two months_bequite a long time.10. The children enjoyed _theyin the zoo.二. Choose the best answer.1. Lin Tao plays football better than _ in his class.A. anyone B. everyone C. someone else D. anyone else2. A

16、ll the students in my class are getting on very well with _.A. another B. each other C. other D. others3. At the head of the queue_ the twin brothers.A. have B. has C. was D. were4. He _ be in Beijing. I saw him just now.A. cant B. may not C. mustnt D. neednt5. People cant drive after they _ 60.A. g

17、et B. have C. reach D. arrive6. If theres _I can do for you, please tell me.A. something B. anything C. nothing D. everything 7. If youre ill, you_ see the doctor.A. must B. must to C. have to D. will have to8. There are many tall trees on _ side of the road.A. both B. either C. all D. every 9. We a

18、re all _ you. Please dont jump the queue.A. before B. front C. after D. ago10. To our _, he quarreled _ his father.A. surprised, with B. surprise, with C. surprises, with D. surprise , about11. The boy is waiting for his mother _.A. will come B. comes C. is coming D. to come12. He has nothing _.A. t

19、o complain B. complain about C. to complain about D. complaining13. We should buy _ food for supper because we have _food.A. some, a little B. enough, little C. any , little D. enough , a little14. If someone jumps the queue , well_.A. not be please B. be not pleased C. not be happy D. be not happy1

20、5. Jack didnt come to school , _ ill.A. he maybe B. maybe he C. he may be D. may be he16. Mr Smith answered the question_ a weak voice.A. in B. with C. by D. on三. 在以下的时间状语从句中填入正确的连词 when, before , after, while , until, as, since, whenever , as soon as 1._ he comes tomorrow, I shall ask where he has

21、been. 2. _ he was speaking, everybody listened carefully. 3. I saw her just _ she was getting off the train. 4. Have a good look at that man _ you pass him. 5. It was already eight oclock _ we got there. 6. I was about to go out _ a visitor came. 7. Well go to the country at the beginning of June, _

22、 the summer harvest will start. 8. He learned to speak German _ he was in Berlin. 9. Henry is in charge of the office _ Mr. Smith is away. 10. I listen to the recorder _ I have time. 11. He had learned Chinese _ he came to China. 12. _ the work was done, we sat down to sum up experience. 13. I haven

23、t seen him _ he moved to the other side of the town. 14. I waited _ he came back. 15. It was not _ he took off his eyeglasses that I recognized him. 16. She likes everything to be in place _ she starts to work. 17. The thieves ran away _ they caught sight of the police. 18. They decided to go back h

24、ome _ their money ran out. 19. We played outside till sunset, _ it began to rain. 【试题答案】一. Fill in the blanks with the proper words. 1. visitor 2. pleased 3. interesting, interested 4. going5. more carefully 6. minutes 7. quiet, quietly 8. not put9. is 10. themselves 二. Choose the best answer15 DBDAC 610 BCBAB 1116 DCBCCA三. 填入正确的连词1. When 2. While / When 3. as 4. when/as 5. when 6. when 7. when 8. while 9. while 10. whenever 11. before 12. After 13. since 14. till/until 15. until 16. before 17. as soon as 18. before 19. when