1. 人教修订版 高中一年级 ( 下 ) Unit 13

2. Grammar

3. 三者都可用来提建议，其中 had better 语气最弱， should, ought to 语气最强。他们的否定式分别是： had better not, should not, ought not to 。 情态动词 had better, should, ought to 的用法

4. 1. had better 意思是 “ 最好 ”, 表示 说话人希望对方做什么, 后接动词原形。 had better not 则表示说话人希望对方 最好不要做什么。 You’d better not say that. 你最好别说那样的话。 Hadn’t we better take an umbrella? 我们最好带一把伞吧？

5. I had better (I think I should) begin by introducing myself. 我最好（我想我应该）先作一下自我介 绍。 2. should 用以表示建议或劝告 Children should obey their parents. 儿童应该服从他们的父母。

6. He should stop smoking. 他应该戒烟。 You shouldn’t leave a baby alone in the house. 你不应该把小孩子一个人留在家中。 They should have called the police. 他们本应该叫警察的。

7. He should have known that the police would never allow this sort of thing. 他本应知道这样的事情警察是决不允 许的。 3. ought to 1) 常用来表示因为有责任、义务， 而应该做某事，通常与 should 意 思相近。

8. The students ought to obey the school rules ． 学生们应遵守校规。 Oughtn't we to give him a chance to try? 我们难道不应该给他一个尝试的 机会吗 ?

9. 2) ought to 也常用来表示劝告或建 议，意思是 “ 应当 ” ， “ 宜于 ” 。 There ought to be more buses during the rush hours ． 在上下班乘客拥挤的时刻，公共 汽车应当多一点。

10. 3) ought to 还可表示猜测，意思 是 “ 理应 ” ， “ 总应该 ” 。 If he started at seven, he ought to be here now ． 要是他七点钟出发，这会儿总应 该到了。

11. Read the following sentences: You had better get some rest. You had better get some rest. (=You’d better get some rest.) (=You’d better get some rest.) You had better not eat fruit that isn’t ripe. You had better not eat fruit that isn’t ripe. (=You’d better not eat fruit that isn’t ripe.) (=You’d better not eat fruit that isn’t ripe.)

12. You should/ought to be careful with fruit. You should not/ought not to eat too much junk food. (=You shouldn’t/oughtn’t to eat too much junk food.)

13. 1. You have a bit of fever. You _________________________. 2. You ______________________ if you want to be healthy. 3. If you are sick, you ___________ __________. Exercise 1 on P5 had better drink more water ought not to eat junk food a good rest should have

14. 4. Before you eat an apple, you _________________________. 5. You don’t look well, you ________________________. 6. You have a bad cough, you ___________________________. should wash it first or peel it had better take a good rest had better take some medicine

15. 7. This medicine will make you sleepy, you ________________________ ________________. 8. There is nothing seriously wrong with your knee, but you ________________. ought not to drive after you should be careful take the medicine

16. 1. First, you ought to talk to your friend about it before the dinner. 2. But if you don’t want to ask her, then you had better do what she does at the table. Exercise 2 on P6

17. 3. Of course, you should try all the food you are offered. 4. However, you shouldn’t be too nervous. After all, you’re her guest and she will try her best to make you feel comfortable.

18. Practice 1. ---- Write to me when you get home. ---- ______. A. I must B. I should C. I will D. I can 2. ---- Will you stay for lunch? ---- Sorry, ______. My brother is coming. A. I mustn’t B. I can’t C. I needn’t D. I won’t

19. 3. ---- Did you scold him for his carelessness? ---- Yes, but ______. A. I’d rather not to B. I’d rather not have done C. I shouldn’t do D. I’d better not do

20. 4. You didn’t go to the party yesterday, or I ______ you. would see B. could see might have seen D. might see 5. Look what you have done. You ______ have been careful. should B. can C. must D. may 6. The cat ______ hibernate( 冬眠 ) in winter. A. don’t need B. doesn’t need to C. needs not to D. needs not

21. 7. Put on more clothes. You ______ be feeling cold with only a shirt on. A. can B. could C. would D. must 8. The plant is dead. I ______ it more water. A. will give B. would have given C. must give D. should have given 9. I didn’t hear the phone. I ______ asleep. A. must be B. must have been C. should be D. should have been 10. He was busy or he ______ her more help. A. had given D. would give C. could have given D. give

22. May I take your order? Yes. I’d like … ， please. What does that come with? It comes with … and … What would you like to drink? What do you recommend? Anything else? I’d like to try … ， please. At the restaurant

23. Waitress: Can I help you? Student A: Yes, er, what would you like ? Student B: I have no idea. Student A: Well. would you like something to drink? What about a glass of milk? Example

24. Student B: No, thanks. I think I’d like a bottle of orange. What about you? Student A: I’d like a cup of coffee. How about something to eat ? Student B: Some cakes, please.

25. Students: Then we would like a cup of coffee, a bottle of orange, and four cakes, please. Waitress: Ok. Please just wait for a moment.

26. 1. Write Exercise 3 on Page 74 in your exercise-books after class. 2. Talking on Page 72. Practise ordering food as the waiter/waitress and customer. Homework