2022初中教案外研版九年级（上）英语第8讲：Unit 4语法篇（解析版）.docx

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1、第8讲：Unit4 语法篇_语法：情态动词的用法一、提建议。 在英语中，我们可以用其他多种方式提出我们的建议或征求对方意见。(1).用“Lets do.”来提出建议。如：Lets go for a walk after supper.(2).用“What/How about.?”来提出建议；about后接名词或动词ing形式。如：What about/How about a drink? What about/How about taking Tom with us?(3).用“Why not.?”来提出建议，表示“何不”not面后接动词原形。“Why not.?”实际上是“Why dont

2、you/we.?”的简略形式。如：Why not meet at the school gate at eight? Why dont we stay here another day?(4).用“Would you like.?”来提出建议，意思是“你想要吗?”Would you like后可接名词或不定式。如：Would you like a cup of tea?Would you like to go and see her?因此，如果我们说：“去游泳好吗?”英语中可有这样几种表达法：Shall we go for a swim?Lets go for a swim，shall we?

3、What about/How about going swimming?Why not go for a swim?Would you like to go for a swim?What do you think of going for a swim?二、语法： 情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情态动词无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语1.can, could1) 表示

4、能力（体力、知识、技能）。可用be able to代替。Can只有一般现在时和一般过去式；而be able to则有更多的时态。Ill not be able to come this afternoon.2) 表示请求和允许。-Can I go now? - Yes, you can. / No, you cant. 3) 表示客观可能性（客观原因形成的能力）。Theyve changed the timetable, so we can go by bus instead.This hall can hold 500 people at least. 4) 表示推测（惊讶、怀疑、不相信的态

5、度），用于疑问句、否定句和感叹句中。Can this be true?2. may, might1) 表示请求和允许。might比 may语气更委婉，而不是过去式。否定回答时可用cant或mustnt，表示“不可以，禁止”。1.-Might/ May I smoke in this room? - No, you mustnt.2.- May/Might I take this book out of the room?- Yes, you can. (No, you cant / mustnt. )2) 表示推测、可能性（不用于疑问句）。might不是过去式，它所表示的可能性比may小。1H

6、e may /might be very busy now.2Your mother may /might not know the truth.3. must, have to1) 表示必须、必要。 You must come in time.在回答引出的问句时，如果是否定的，不能用mustnt（禁止，不准），而用neednt, dont have to（不必）.- Must we hand in our exercise books today? - Yes, you must. - No, you dont have to / you neednt.2) must是说话人的主观看法， 而

7、have to则强调客观需要。Must只有一般现在时， have to 有更多的时态形式。1 His play isnt interesting, I really must go now.2 I had to work when I was your age.3) 表示推测、可能性（只用于肯定的陈述句）1 Youre Toms good friend, so you must know what he likes best. 2 Your mother must be waiting for you now.1. (2010 .河北省卷,31. 1) Do we have to finish

8、 our homework this afternoon? Yes, you _. A. must B. can C. may D. need2.（2010湖南省娄底市5. 1） Must I be in hospital for a week， Doctor? No， you. You can go back home tomorrow. A.mustnt B.neednt C. must D.may3.（2010湖南省娄底市7. 1） What do you think of the cake? I like it very much. It tastes . A. good B. ter

9、rible C. well D.bad4.（2010.四川省自贡市31. 1）May we leave the classroom now? -No,you _.You_to leave until the bell rings. A.mustnt;are allowedB.cant ,arent supposed C.neednt ;arent allowed5._ many children like KFC, I think theyd better try not to eat it too often. A. Because B. When C. Although D. If解析：1

10、. 考查情态动词must 主观意义上的必须 have to 不得不，表示客观。故选A2. 考查情态动词must, 做否定回答时用neednt.故选B3. taste用作连系动词是用形容词做表语,故选A4. 情态动词may引导的一般疑问句，做否定回答时用mustnt.故选A 5.考查让步状语从句，引导词为although.故选C基础演练1.(10山东省潍坊市)Is Jessica giving us a speech this evening? -No,it_be her.She_to Japan.A. mustnt ;has gone B.mustnt ;has been C.cant ;ha

11、s goneD.cant ;has been2.(10.浙江省衢州市24. 1) Boys and girls . dont forget your report . It _ today . A. cant finishB. cant be finished C. should finishD. should be finished3.(10年上海市36. 1)Is this a photo of your danguter?She looks _in the pink dress!A.lovelyB.quietlyC.politelyD.happily4.(10年上海)Everyone_g

12、o through the security check（安检）when entering the World Expo Park.A.canB.mayC.mustD.ought5.(10.湖南长沙)Must I finish my homework at school? -_.You can do it at home and hand it in next week. A.Yes,you mustB.No,you needntC.Yes, I can6. Mary wanted to help people _ she became a doctor. A. if B. that C. b

13、ut D. so 7.Thiskindofcellphone_also_inChinanow.A.must;produceB.can;beproducedC.must;beproducedD.can;produce8.Thedirtywaterinthisriver_manyproblemsinthepasttenyears.A.createsB.hascreatedC.iscreatingD.wascreating9. He failed in the exam _ he was too careless. A. when B. because C. and D. But10. We hav

14、e been good friends _ we joined the same ping-pong team.A. after B. before C. since D. untilllphone_also_inChinanow.A.must;produceB.can;beproducedC.must;beproducedD.can;produceII.用所给词的适当形式填空。1. Im very surprised _(meet) you in the small village.2. My pen was lost. I couldnt see it _(somewhere).3. Sh

15、e will visit the Birds Nest as soon as she _(get) to Beijing.4. I _ (will) fly to the moon one day in my own spacecraft.5. Dont forget _(write) to us when you arrive.答案：I.DACCBDBBBCII.1.to meet 2.anywhere 3.gets 4.would .to write巩固提高I.单项选择1.(2010.江苏省盐城市3.1)The desk is not dirty.You_clean it.A.mustnt

16、B.shouldntC.neednt D.cant2.(2010.四川省内江市23. 1)What is your mother going to do this Saturday? -Im not sure.She_go to see my grandmother. A.canB.must C.may3.(2010山东省潍坊市20. 1)The cookies_good .Could I have some more?A.tasteB.smellC.feelD.sound4. - Lets go dancing tonight. - Sorry, I _. I have to go to a

17、 meeting.A. mustnt B. may not C.neednt D. cant5. John_ come to see us tonight, but he isnt very sure yet.A. may B. Can C. has to D. must6. They _ do well in the exam.A. can be able to B. be able to C. can able to D. are able to7. -May I take this book out? -No, you_.A. cant B. may not C. neednt D. m

18、ustnt8. You_ go and see a doctor at once because youre got a fever.A. can B. must C. dare D. wouldII.用所给单词的适当形式填空。1. Many teenagers dont know how _(look) after themselves.2. As soon as I get there, I _(call) you.3. I think basic life skills, such as _(cook) and _(wash) clothes are especially importa

19、nt.【 4. The girl is as _(tall) as she is beautiful.5. Yesterday, I _(burn) the soup. It smelt bad.答案：I.CCAD ADDBII.1.to look 2.will call 3.cooking; washing 4.tall 5.burnt I.单项选择1. climb the tree. It is dangerous.A. DoesntB. NotC. DontD. Isnt2. Must I return the book tomorrow morning?No, you _. You c

20、an keep it longer.A. mustntB. cantC. needntD. couldnt3. Must I finish the work tonight? No, you . But you finish it tomorrow.A. cant; needB. mustnt; may C. neednt; mustD. mustnt; can4. _ interesting the storybook is! Yes. I have read it twice.A. WhatB. What anC. HowD. How an5. We be late for school.

21、A. have to B. dont have toC. had better notD. had better not to6. Who is singing in the next room? It be Lucy. She likes singing at this time.A.canB. must C. mustntD.should7. Would you like ? No, Ive just had some bread.A. something to drinkB. something to eat C. anything to drinkD. anything to eatI

22、I. 完形填空It was Sunday afternoon. My younger brother and I were alone at home. My parents went for a party and asked me to look after my younger brother. I was doing my homework while my younger brother was watching TV. Suddenly the doorbell rang. Ding-Dong! My younger brother thought that it was our

23、parents, so he opened the1quickly. A tall man wearing a black raincoat stood outside. He said that he came to sell books and he2politely, “Are your parents at home? ” Without thinking, my younger brother said, “No. ”Then the man asked, “Would you like to3some story books? ”I told him we didnt want t

24、o buy. When I wanted to close the door, he suddenly pushed(推)the door very heavily and came into our house. He took out a4and ordered me to tie(绑)up my younger brothers hands with a rope(绳子). I tied up his hands in a special way so my younger brother could untie5easily. The man then tied my hands up

25、 and locked6of us in the kitchen. Soon, he went upstairs to7money. I taught my younger brother to untie the rope on his hands. He then untied me. I rushed to the telephone to call the police, 8the line was dead. The doors were all locked from the outside. It was lucky that the man9to lock the kitche

26、n window. So we got out of the house through the kitchen window and went to the10pay phone to call the police. Soon the police came to our house and the man was caught by the police. By that time, my parents had come home. We told them the whole story. My parents were happy that we were not hurt. Th

27、ey told us that we shouldnt open the door to strangers. We learnt a lesson on safety. 【 】1. A. windowB. doorC. bookD. TV2. A. askedB. askC. answered D. answer3. A. lendB. borrowC. sell D. buy4. A. kissB. knifeC. gift D. pen5. A. himselfB. itselfC. herself D. themselves6. A. mostB. someC. both D. all

28、7. A. look atB. look afterC. look like D. look for8. A. andB. soC. or D. but9. A. wantedB. likedC. forgot D. tried10. A. farthestB. nearestC. largest D. smallest答案:I.CCDCCABII.BADBACDDCB_I.单项选择1. Cars, buses and bikes _ stop when the traffic lights are red. A. can B. must C. may D. need 2. You _ wor

29、ry about him. He will get well soon. A. neednt B. cant C. mustnt D. may not3. Susan _ be here now because she has just gone to New York. A. mustnt B. cant C. neednt D. may not 4. - Mum, must I do my homework now? - No, you _. You can do it after supper. A. mustnt B. cant C. shouldnt D. neednt5. When

30、 a driver sees the sign STOP, he _ stop. He _ go on. A. must; mustnt B. mustnt; must C. can; cant D. cant; can6. Bob, may I your MP4?Sure. But youd better not it to others.A. lend; lend B. lend; borrow C. borrow; borrow D. borrow; lend12.Kate, Im going on business. Please look after well.Dont worry,

31、 Mom. I will.A. herself B. myselfC. yourself D. himself13. Do you know _? Yes, I do. He went by skateboarding!A. whether Paul will go or not B. when will Paul go to the partyC. how Paul went to the party D. how did Paul go to the party14. I think drinking milk is good _ our health.A. for B. to C. wi

32、th D. at15. Look at the sign “No smoking!” You smoke here. OK. .A. cant; I wont B. mustnt; I will C. wont; It doesnt matter D. mustnt; I wontII. 阅读理解Jenny was a student in my class. She lived in a happy family. She had three sisters and she was the youngest. She seemed to be glued(粘合)to her mothers

33、skirts. Her three older sisters took the bus to school every morning, but she was always driven to school by her mother. One Friday, Jennys mother said to me, “My husband and I have to be away to Europe on business for two weeks. I am very worried about Jenny. She is so young and weak. Will you plea

34、se help me look after her while were away? ”As a mother of a kid, I knew how worried a mother would be if she was away from her child. “Dont worry! Ill try my best to take good care of her, ”I said. I even volunteered to say that I would wait for Jenny at the school gate every morning to give her a

35、familiar(熟悉的)face. On the next Monday morning, I waited at the school gate to meet Jenny. When the bus arrived, Jenny and her three sisters got it off. I was surprised to see a happy girl, not a sad, tearful girl. I called Jenny over to ask her how the bus ride went. “Very interesting! ”she said, “I

36、 always wanted to take a bus with my sisters, but Mom was always together with me. You see there isnt any baby in our family now. I can take a bus without Mom. Im no longer a kid. ”1. How many people were there in Jennys family? A. Three. B. Four. C. Five. D. Six. 2. What does the underlined part me

37、an in the first paragraph? A. Jenny liked her mothers skirts. B. Jennys mother liked Jenny best. C. Jenny stayed with her mother all the time. D. Jenny wore a skirt which was similar to(与相似)her mothers. 3. Jennys mother wanted the writer towhile she was away. A. be serious with JennyB. give Jenny mo

38、re attentionC. pick up Jenny every dayD. meet Jenny at the school gate every day4. What do you know from the passage? A. Jennys mother would go to Europe for a trip. B. Jenny went to school with her sisters every day. 【 】C. The writer has a son or a daughter. D. The writer drove Jenny to school when

39、 Jennys mother was away. III.词汇运用()根据句意及首字母或汉语提示完成单词(5分)1. Lots of p_ are getting on the bus, and it looks crowded. 2. I would like to go to your house, but I dont know your a_. 3. There is nobody on the playground. Its e_. 4. The instructions were written in _ (简单的)English. 5. To my surprise, Mrs L

40、i_ (未出席)the flower show last Sunday. ()用所给词的适当形式填空(5分)6. The class (meet)is very important, so you shouldnt be late for it. 7. Lisa was in a hurry (open)her gift. 8. We are planning (visit)France this summer. 9. It was late at night. My sister (shut)the door and went to sleep. 10. Lucy was unable (f

41、ind)out what had happened. IV. 完成句子1. 听到这个好消息, 他高兴得说不出话来。He was_ _ _ say a word when he heard the good news. 2. 当你不用冰箱的时候, 请把电源关掉。Please_ _ the power when you dont use the fridge. 3. 妈妈, 明天是周六, 请不要叫我早起了。Mom, tomorrow is Saturday. Please dont_ me_ early. 4. 他们将在下周去国外出差。They are going abroad_ _ next w

42、eek. 5. 你们必须在本周末前交上作文。You must_ _ your compositions by the end of this week. V.书面表达某英文报社正就青少年与父母关系这一话题开展题为“How to keep a good relationship with parents”的征文活动。请你根据以下要点, 写一篇80个词左右的英语短文参加此次活动: 1. 父母规矩太多, 过于强调学习成绩, 不理解自己等问题; 2. 你对这些问题的看法; 3. 你与父母保持良好关系的做法。How to keep a good relationship with parentsIn my opinion, I have too many rules at home. My parents never allow me to go out