Unit8EnglishweekGrammar讲解及练习.doc

Unit 8 English weekGrammarA Modal verb: should 情态动词should的用法1. should“应该；应当”，情态动词，多用于劝说他人的错误行为或给予他人一些建议，使用时后面须跟动词原形，人称没有形式上的变化。Iwe 我我们 You 你你们 should do some work tonight.HeSheItThey 他她它他（她）们2. should否定形式，should not(shouldnt)“不应该；不应当”You shouldnt sit in the sun all day.They shouldnt spend too much money.3. 常用I should或we should表达“对自己而言该做些什么”I should go home. Its midnight.We should invite them for a meal.常用I shouldnt或we shouldnt表达“对自己而言不该做某事”I shouldnt spend too much money.常用you shouldshouldnt来向他人提出建议You should look for a better job.You shouldnt drive so fast.4. 用should Iwe-来向他人寻求建议Should I write my name here?What should I say to Helen?I need a new passport. Where should I go?5. 常用I think we should及I dont think you should等来表达自己的观点I think we should get a new car.I dont think you should believe him.6. 还可以用do you think I should-?来寻求建议He hasnt replied to my email. Do you think I should phone him?What do you think I should give Tom for his birthday?B had better had better的用法1. had better“最好”，用于表示对别人的劝告、建议或表示一种愿望，语气比should更婉转。had better后面也接动词原型，没有人称变化。缩写d betterYou had better go to hospital at once.Tom, youd better go there today.2. had better的否定形式是had better not，缩写形式为d better notYou had better not miss the last bus.Youd better not leave for Nanjing the day after tomorrow.3. 可以用于指现在。You had better listen to the radio now.You had better be quiet.也可以用于指将来。You had better start tomorrow.We had better buy the more expensive one. It will last much longer, so it will be cheaper in the end.4. had better在表示对别人进行劝告、建议时，不宜用于与陌生人、长辈及上级的交谈中。对长辈说话时，比较有礼貌的说法是It might be better for you-, It would be better for you-等。It might be better for you to help me, Grandpa.Exerxise1) Complete the sentences with should or shouldnt and the words in brackets.1. (youwork) so hard. Have a holiday.2. I enjoy watching films. (wego) to the cinema more often.3. (youpark) here. Its not allowed.4. What (Icook) for dinner tonight?5. (youwear) a coat. Its cold outside.6. (yousmoke) . Its bad for you.7. (wearrive) at the airport two hours before the flight.8. (Ipay) now or later?9. Do you think (Iapply) for this job?10. What do you think (Iwrite) in this space on the form?11. (Ieat) any more cake. Ive already eaten too much.12. This food is terrible. (wecomplain) to the manager.2) Complete this conversation between Brian and Keith with the words in brackets. Put it do or should where required.Brian：I want to buy a motorbike.Keith： (whatyouthinkIdo)Brian： (youlook atthe advertisements in the papers)Keith： (which papersIget?)Brian： (whatyouthinkIdobfore I buy a bike?)Keith： (Inotthinkyoudicidetoo quickly) (youcheckthe condition of the bike) (younotbuyone simply because it looks nice) (youbeverycareful)3) Use one of the phrases from the box and should or had better to complete each conversation. Put not in the correct place.1 A：There is a house near my home. I often hear a child crying there. B：you (had better) 2 A：My daughter wants to marry a sailor. What should I do about it? B：In my opinion, you (should) Your daughter (should) 3 A：If someone has a serious accident, whats the right thing to do? B：Well, you (had better) . Its not a good idea to move an injured person. Instead, you (should) to take the person to hospital.4 A：Last Saturday I bought some coffee cups, but the handle of one cup was broken. What can I expect the shop to do? B：They (should) 5 A：My son is 12 years old and hes already very fat. B：Well, its important not to eat too much, so you (had better) . Also, you (should) 6 A：If you come home and find that youve been robbed, whats the best thing to do? B：Well, you (had better) You (should) 7 A：Mary cant work because shes feeling sick. How can she get home? B：Well, she (should) She (should) 4) Read the situations and make sentences with had better. Use the words in brackets to help you. And other words if necessary.1. You are going out for a walk with Tom. It might rain. You say to Tom：(an umbrella) We 2. Jack has just cut himself. Its quite a bad cut. You say to him：(a plaster) 3. You and Ann plan to go to a restaurant this evening. Its a very popular restaurant. You say to Ann：(book) We 4. Jill doesnt look very well-not well enough to go to work. You say to her：(work) 5. You received your phone bill four weeks ago, but you havent paid it yet. If you dont pay it very soon, you will be in trouble. You say to yourself：(pay) 6. You want to go out, but youre expecting an important phone call. You say to your friends：(go out) I 7. You and Fiona are going to the theatre. Youve missed the bus and you dont want to be late. You say to Fiona：(a taxi) 5) Complete the conversations with should or had better. Put not in the correct place.1 A：Should Henry stay in bed? B：No, the doctor said he (should) stay in bed.2 A：Can we move that cupboard? B：No, its very delicate, so you (had better) leave it where it is.3 A：Should we change these notices? B：No, the show is still on, so we (should) change them until next week.4 A：Youd better tell the boss about the accident immediately. B：No, shes in a bad mood. I (had better) tell her until tomorrow.5 A：Does the doctor day its all right for Mrs Darcy to work? B：Yes, but she must be careful. She (should) lift anything heavy, for example.6 A：Can they come before dinner? B：No, we havent got enough food, so they (had better) come after dinner.5