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情态动词 用适当的情态动词填空: 1.Must I wait till he comes back? No, you _. / No, you_. 2.You _not make so much noise in the hospital. 3. Can you ride a bike? No, I _. 4. Need I go home now? No, you _ stay here. 5. _ you like to help me? 6. Mother is ill. I _ stay at home and look after her. 7. _we begin our class now? 8. Need I hand in my homework? Yes, you _. 9. _ I use your car? Yes, you _. must Must I hand in my homework? Yes, you must. / Yes, you have to. No, you needn’t. / No, you don’t have to. You must buy a ticket. 必要,义务 You must get up early=Get up early. You mustn’t smoke here. =Don’t smoke here. He must be our new teacher. I know I must study hard.主观愿望 My brother was very ill. I had to call the doctor in the middle of the night. 客观需要 can I’m not a blind man. I can see. Can I use your pen? = May I use …? =Could I use your pen? He has been able to swim. I’m sure I’ll be able to be there on time. His mother said he could/was able to tell a story when he was only three . She can’t play football. I couldn’t swim until I was ten. Can it be true? It can/could be true. Will /Would you help me with my homework? Will/Would you please buy some books for me? I want to ask you a question.=I would like to ask you a question. Would you like a cup of tea? Would you like to sing a song? 答语 Yes, I will. No, I won’t. Sure. I’m sorry. I can’t. All right. Certainly. Shall I buy the book for you? Yes, please. / No, thank you. Shall we have lunch here? =Let’s have lunch here. All right. / Yes, let’s. No, let’s not. / No, thank you. need Need I hand in my homework? Yes, you must. No, you needn’t. He needn’t go there, need he? He doesn’t need to go there, does he? may might Where’s Mary? It’s fine today. She may/might be on the lawn. The boy may have got lost. It isn’t easy to find this place. (He can’t have forgotten. We were talking about it this morning.) May /Might I watch TV? 答语Yes, please./ Yes, you may./Certainly./Sure. / Yes, of course. No, you may not./I don’t think you can. /No, yo