4. How is the water being used? What should we do to protect water from being polluted? 1)Review information we’ve learnt in this unit. 2)Present the Modal Verbs 3)Develop Ss speaking ability

5. Suggested Answer: Water has a lot of usages. Everyday we must drink enough water. We need a lot of water. However, lots of waste water is poured into river and soil. It will be harmful for all livings. As a result, we must take measures to protect water. We should reuse water as much as we can. We had better use new technology to save the water. We ought to be more careful with our water. What are they? ----( can,could, may, might, will, would, must, have to, have got to, shall, should, need, ought to, had better) ---(Modal Verbs.)

6. I. Let Ss discuss the common points among modals verbs in groups. II. Finish the exercise on P21. 1)Review the Modal verbs. 2)Develop Ss speaking ability. 3)Check if they can use Modal verbs correctly.

7. (1). Classified all the Modal Verbs into eight groups. Possibility: can/could, may/might Ability: can/could, be able to Requests: can/could, will/would, would like Necessity: must, have to, have got to, need Certainty: must, will, should Permission: can/could, may/might Suggestions: could/may/might/shall Advice: should/ought to/had better

8. (2). Review some important usages of Modal Verbs in some groups. In this part, I will use comparative method and do exercise at the same time to make Ss understand the usages much more better. Group 1: about possibility. Group 2: about neccessity. Group 3: about advice. Group 4: modal verbs + have done

9. Group 1: about possibility. MUST CAN MIGHT FORMS 肯定形式 否定形式 疑问形式 备注 Must / / Can can’t/can’t/ Can··· ？ Could could not Could··· ？ may may not Might might not COULD MAY

10. ORDER: Might May Could Can Must UNCERTAIN CERTAIN

11. ( 可能是 Kate 。 ) ( 绝对不是 Marry 。 ) ( 可能不是 Tommy 。 ) Mum: Who is it? Jim: ( 一定是 Tom 。 ) It must be Tom. It may be Kate. It can ’ t be Marry It couldn ’ t be Tommy.

12. Group 2: about neccessity. Look at some sentences, then distinguish their usages. 1.I really must study hard. 2.You must be here by 3 o ’ clock. 3.You have (got) to go and see the manager. 4.You needn’t work on Sundays.

14. Group 4: Modal verbs + have done look at some sentences, then ask them if there have anything in common in these sentences. 1.It must have rained last night,for the ground is wet. 2.You can ’ t have seen him yesterday, for he is still in Australia. 3.You could have told me he was coming. 4.She is late. She may have missed the bus.

15. 1.Do exercise on P22. Filling blanks. ask: Can you tell from the letter what John’s problem is? 2. Do multiple choices on paper. 1)Improve Ss reading ability. 2)Master the Modal Verbs correctly.

16. Choices: 1.You _____ read that book if you don ’ t want to. A. haven ’ t B. can ’ t C. mustn ’ t D. needn ’ t 2.Would you like to see the movie tonight? I ___ meet you at the gate of the Student Center. A. may B. will C. must D. ought to 3. – Did you blame him for his mistakes? --Yes, ____ but ____ it. A. I should have done, I didn ’ t do B. I shouldn ’ t do, I did C. I should do, I didn ’ t D. I should have done, I hadn ’ t done

17. 4. I think that you had better ______ earlier. A. start getting up B. to get up C. to start to get up D. started getting up 5. I ____ not get away any sooner although I had planned to leave earlier. A. should B. would C. could D. might 6. I thought you ___ like something to read, so I bought you some books. A. may B. might C. could D. should 7. It is very late. Jack __ be here at any moment. A. won ’ t, can ’ t B. mustn ’ t, may C. shouldn ’ t, must D. can ’ t, shouldn ’ t

18. 7. There was plenty of time.She ______ A. mustn ’ t have hurried B. couldn ’ t have hurried C. must not hurry D. needn ’ t have hurried 8. – Could I borrow your dictionary? -- Yes, of course you _____. A. might B. will C. can D. should 9. I told Sally how to get there, but perhaps I __ for her. A. had to write it out B. must have written it out C. should have written it out D. ought to write it out

19. 11. You ___ be tired, for you have studied for quite a long time. A. have to B. must C. ought to C. may 12. --- You ____ give the apple to Jack--- he already got one. --- Shall I give the apple to his brother? ---No, you ____ give it to him-----I don ’ t want to see him any more. A. needn ’ t, needn ’ t B. mustn ’ t, mustn ’ t C. needn ’ t, mustn ’ t D. mustn ’ t, needn ’ t

20. Do you agree on the advice that Mary gives to him? Please use the Modal Verbs to write a letter to John to express your own opinion. 1)Review information we’ve learnt in this unit.

21. Modal Verbs: Possibility: can/could, may/might Ability: can/could, be able to Requests: can/could, will/would, would like Necessity: must, have to, have got to, need Certainty: must, will, should Permission: can/could, may/might Suggestions: could/may/might/shall Advice: should/ought to/had better

22. Thank you!