2022年高中英語 Unit2 Olympic Games grammar導(dǎo)學(xué)案 新人教版必修2

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1、2022年高中英語 Unit2 Olympic Games grammar導(dǎo)學(xué)案 新人教版必修2 學(xué)習(xí)目標(biāo):掌握本單元情態(tài)動(dòng)詞Should,ought to, have to,mustn’t ,needn’t 的用法;提高閱讀理解的能力, 學(xué)習(xí)重點(diǎn):會(huì)正確使用這些情態(tài)動(dòng)詞的用法。 學(xué)習(xí)難點(diǎn):能辨別should與ought to 的區(qū)別;must與have to 的區(qū)別;mustn’t ,needn’t 的用法。 學(xué)習(xí)過程: Task 1:fill in the blanks.請同學(xué)們用學(xué)過的情態(tài)動(dòng)詞填空。 1.She has been cooking all the morni

2、ng. She be tired now. 2. Don’t tell anybody what I said. You ______ keep it a secret. 3. Perhaps he is in his office. =He ____ be in his office. 4.______ you like a cup of coffee? 5. In China many children ________ wear uniform(校服) when they go to school. 6. You ___________ believe ever

3、ything you read on the Internet. 情態(tài)動(dòng)詞2 1. should, ought to都可表示“應(yīng)該”。ought to用于表示按道理應(yīng)當(dāng),常指客觀的義務(wù)或責(zé)任,大多數(shù)情況下可用should代替,但比should語氣重。 I should help her because she is in trouble. You ought to take care of the baby. 表示勸告、建議或命令時(shí),should和ought to可通用,但在疑問句中常用should。ought to的否定式為oughtn’t to或ought not to。 Yo

4、u should / ought to go to class right away. Should I open the window? What should we do next? 2.have?to?的用法 1) must表示一種主觀的需要,而have?to表示一種客觀的需要,意思是“不得不”。?如:? I have to attend an important meeting this afternoon. 今天下午我不得不參加一個(gè)重要的會(huì)議。 Mother is out, so I have to look after the shop.媽媽不在家,因此我不得不

5、照看商店。? 2) have?to?的否定形式是don’t have to, 相當(dāng)于needn’t。如: They don’t have to buy a puter at present. 他們目前沒有必要買電腦。 3.must的肯定形式表示“必須”,否定式表示“禁止、嚴(yán)禁”。 You must e here. You mustn’t take the book away from the library. Task2:Choose suitable modal verbs below to plete the following dialogues.

6、ought/oughtn’t to ;should/ shouldn’t ;mustn’t ;needn’t ; (don’t) have to ; will ;can/ can’t 1 Sam: How can I grow thinner, Mum? Mum: Well, you _______ eat food with plenty of fibre that helps you digest better. And you _____ stop drinking cola or eating sweet food. Sam: Does it mean I _________ e

7、at my favourite fried chicken any more? Mum: Not exactly, if you love fried chicken, you ______ give it up. Just eat it less often. You ______________________________ worry too much: a little fried chicken ____ do you good! 2 Doctor: You are sick because you’ve eaten poisonous mushrooms. Where di

8、d you get them? Lucy: I picked them in the forest. I know we _______ eat fresh vegetables. Doctor: Oh, but you _______ eat them until you’re sure they are not poisonous. Lucy: Thank you, doctor. I’ll be more careful next time. 3 Charles: I wish I could see things clearly in the dark. Tom: Eat

9、ing carrots _______ help you see better. You _______ eat some every day. Task 3:用所給的情態(tài)動(dòng)詞填空。 must; oughtn’t to; don’t have to; couldn’t;mustn’t; needn’t; can’t; have to 1. You _______________________ go on working because you look so tired now. 2. The weather turned out to be fine yesterday. I _

10、______ have had the trouble to carry my umbrella with me. 3. If you earn more than £5,000, you _______ pay tax. 4. You _______ play now!You shall finish your homework first! 5. I know things are hard with you, but you _____________ try to get over the difficulties. 6. I didn’t see her at the

11、meeting this morning; she _____________ have spoken at the meeting. Task 4:單選 1. I thought you __ like something to read, so I have brought you some books. A. may B. might C. would D. must 2. Where is my pen? I ____ it. A. might lose B. would have lost C. should have

12、 lost D. must have lost 3. I didn’t hear the phone. I __ asleep. A. must be B. must have been C. should be D. should have been 4. --Is John ing by train? --He should, but he __ not. He likes driving his car. (2002高考題) A. must B. can C. need D. may 5. --I

13、 heard they went skiing in the mountains last winter. --It ____ true because there was little snow there. (2002北京高考題) A. may not be B. won’t be C. couldn’t be D. mustn’t be 6. ---There were already five people in the car, but they managed to take me as well. ---It ___ a fortable journey. A. can’t be B. shouldn’t be C. mustn’t have been D. couldn’t have been

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