情态动词否定疑问

情态动词否定疑问

  （1）情态动词的否定

  情态动词 + not + 动词原形

  1.He can’t sing an English song.

  2.He may not know her.

  3.He mustn’t go there.

  4.He doesn’t have to go there.

  （2）使用情态动词进行提问

  情态动词 + 主语 + 动词原形

  1.-Can he sing an English song?

  -Yes, he can. / No, he can’t.

  2.-Must he go there?

  -Yes, he must. / No, he needn’t.

  3.-Does he have to go there?

  -Yes, he does. / No, he doesn’t

练习

  1.-(Can) I stay here?

  -Yes, please.

  2.-(Must) she go back now?

  -No, she needn’t.

  3.-(Does) he have to get up at 9:00?

  -Yes, he does.