情态动词have to的用法 have to侧重于客观上的必要.作 “必须 “不得不做某事 讲.和其他情态动词的区别在于她具有人称的变化. 1) 肯定句:sb +have/has to+动词原形.主语为第三人称单数时用 has to.其他人称用have to.如.He has to work on Sunday.他不得不在周日工作. 2)否定句:sb +don’t/doesn’t have to+动词原形.主语为第三人称单数时用doesn’t have to.其他人称用don’t have to.He doesn’t have to leave now. 3)Does/Do+sb+have to+动词原形?Yes,-do/does. No, -don’t/doesn’t. 主语为第三人称单数时用does提问,其他人称用do提问. 查看更多

 

题目列表(包括答案和解析)

用所给的情态动词 have to (has tohad to ),may, can, can’t, must, mustn’t, needn’t填空

You______make so much noise. The children are asleep.

 

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用所给的情态动词 have to (has tohad to ), may, can, can’t, must, mustn’t, needn’t填空

She ______ do this, doesn’t she?

 

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用所给的情态动词 have to (has tohad to ), may, can, can’t, must, mustn’t, needn’t填空

Do you ______ finish all this before you go out to play?

 

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用所给的情态动词 have to (has tohad to ), may, can, can’t, must, mustn’t, needn’t填空

—Must I finish the exercises in class?

—No, you ______.

 

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用所给的情态动词 have to (has tohad to ),may, can, can’t, must, mustn’t, needn’t填空

He ______ swim. And so ______ I

 

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