8. He may be traveling around the world.
9. The keys cant be in the room. I have just searched it very carefully.
10. Can the news be true ?
(三)对过去的事实进行推测:结构:情态动词+have done / been+名词/形容词/介词短语
例句:
1. Mrs. Longmans must have been a pretty girl in her youth.
2. He couldnt have seen Anna yesterday. Shes gone abroad.
3. I think I must have left my glasses in the library.
4. He might have overslept again.
5. Where can Tom have gone ?
情态动词表达虚拟语气:表达本来,不然早就。这是情态动词的一种虚拟语气用法。表示说话人所讲的与所发生的事实相反。表达了说话人的埋怨,后悔的语气。其结构是在一些情态动词后面加 have done 结构。根据要表达的意思,有如下结构:
should have done / ought to have done:本应该
shouldnt have done / oughtnt to have done:本不该
could have done:本来可以
neednt have done:本来没必要
would like to have done:本来很想
would rather not have done: 本来不愿意
could / might / have done: 不然早就
例句:
【高中英语重点语法大全】相关文章:
★ 高中英语语法归纳
最新
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29