Section_ⅢGrammar-_情态动词

　　语法图解

　　探究发现

　　①The topic of the poem can't be travel.

　　②It must be something more personal.

　　③It may be friendship.

　　④It might be the journey through life.

　　⑤Li Bai must have had a strange life.

　　⑥He can't have been interested in a normal life.

　　⑦He may have died when he fell out of a boat.

　　⑧You should read the poem sometime.

　　⑨Could you answer a few questions, please?

　　⑩I told her to stop singing, but she wouldn't listen.

　　[我的发现]

　　(1)①～⑦句表示推测，其中⑤～⑦句表示对过去所发生的事情的推测。

　　(2)⑧句表示说话人的意愿，意为"应该"，⑨句表示请求，⑩句表示意愿。

　　一、情态动词表推测

　　(一)情态动词表推测的三种句式

　　1．在肯定句中一般用must(一定)，may(可能)，might/could(也许，或许)。

　　You have worked hard all day.You must be tired.

　　你辛苦干了一整天，一定累了。

　　The thought that she might be ill annoyed him.

　　想到她或许病了，他就不安。

2．否定句中用can't/couldn't(不可能)，may not/might not(可能不)。