例如:She must have her own car, for she has a lot of money.
That kind of bird may live in the valleys.
3.对目前正在发生的事情进行推测:
句式:must/may/might/can/could+be doing
例如:They must be waiting for us.他们肯定正在等我们。
She may/might be doing her homework.她可能正在做作业。
Can/Could he be playing football? 他会正在踢足球吗?
4.对已发生的事情进行推测:
句式:must/may/might/can/could+have done
例如:Theres no light in the room. They must have gone to bed./She knows nothing about the film. She cant/couldnt have seen it./Can/Could he have been a doctor?/He may/might(not)have been a teacher./They must have been watching TV at nine last night./Can/Could she have stayed in Beijing last year?
注意:will have done句式也可表肯定/可能已经推测意。
例如:He will have learned advanced mathematics, for he knows a lot about it. 他肯定/可能学过高等数学,因为他对此懂得很多。
三、情态动词+have done用法
1.should/ought to +have done,意本应该,含有责备或后悔意。
例如:You should have come here a little earlier./I ought to have sent him to school./
【2011届高考英语语法总复习 情态动词与主谓一致】相关文章:
最新
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29