Grammar and usage(2): Modal verbs: comparisons教学设计思路

Unit 2 Sports events Grammar and usage Modal verbs: general introduction & comparisons Teaching Aims: 1. Show Ss that modal verbs can be used to talk about ability, obligation, certainty or permission, to make requests, suggestions, offers and to give advice. 2. Enable students to understand that some modal verbs can be used with the continuous form and the perfect form to talk about current affairs or past actions. Teaching Important Points: 1. Develop the students’ ability of using modal verbs.

2. How to make students master the usage of modal verbs. Teaching Difficult Points: Develop the students’ ability of using modal verbs and how to make students master the usage of modal verbs. Teaching Methods: Explanation and exercise Teaching Procedures: Step 1 Please write down the following modal verbs：

能够

________________________ 可以

________________________ 愿意，会

____________________ 必须

________________________ 应该

________________________ 敢

__________________________ Practice: 1. Could I use your pen? Yes, you ________. 2. --- May I pick a flower in the garden?

--- No, you ___________________. 3. --- Must I tell him the truth?

--- No, you ____________________. 4. You ________________ work hard if you want to catch up with others. 5. He _______________( 能够

) swim across the river despite his young age.

6. My mother is ill in bed. I ________(不得不) stay at home to look after her.

Step Two. must , can，

may, might,等表猜测

1.He ___________________(一定在家）, for the lamp is burning. 2. The story __________________(不可能是真的）. You made it up. 3.She ________________________（也许在等我们）at the school gate. 4. They____________________________________ (可能10年前见过面), but they

can’t remember where.

5. He______________________________ (一定没有通过考试), for he looks unhappy . 6. Who ____________________________(可能泄露消息呢）？

Step three: 区别下面几组情态动词的意思：

must have done.

may/might have done can’t /couldn’t have done

might have done could have done

should / ought to have done

shouldn’t have done

would have done needn’t have done 1.you___________have worked harder before. You see what a low score you got in the exam. 2.In fact we ____________ have taken a taxi. The station is so near. 3.You _____________ have done a better job ,but you were a bit careless. 4. We __________have gone to the party last night. We had so much homework to do. 5.You ________________ have met her in the cinema, for she was at home with me at that moment. 6.The house _____________________have been deserted for years. 7. They ____________have found the solution to the problem, but I’m not sure.

Step Four. Comparisons

can / could / be able to 1. Only few of them _____________ survive the earthquake. 2. I ______ swim all the way across the river, but I ______ not now.

3. Only in this way _____we __________ solve the problem. 4.

__________ to read in English, he soon found out their secrets.

5. You

______

not park your car in this street. 6. How _____ you be so careless?

will / shall / would / should

1. __________ you pass me the ball, please? 2. We cannot always do as we ____. 3. Matches _____ not strike if they are damp. 4. I told him not to go, but he _____ not listen. 5. He ______ sit for hours doing nothing 6. _____ I buy some food for you ?

7. A boy is waiting to see you outside. ______ he come in ?

8. You _____ get a prize for your hard work. 9. He _____ be regretful one day if he doesn’t follow his parents’ advice.

10. He suggested that we ______ hand in our homework soon. 11. Rice _______ grow in this place, which is a wonder.

Step five. Practice

1.You _______( 一定

) fail if you don’t work hard.

2.Don’t throw away the newspapers. They ________ (有时) be useful. 3.He _______(过去总是

) get up early and read newspaper . 4.It is strange that the girl ________( 竟然

) be so rude to her parents. 5._______( 祝

) you be happy forever. 6. Why _______( 偏要

) you play the piano at such a late hour? 7.She is afraid of monsters, so she __________(不敢) go out alone at night.