7.　　　 Mother asked me to take my umbrella with me.

6.　　　 She asked her guests to have some tea.

5.　　　 The students are trying to make fast progress.

4.　　　 John likes to go to the cinema once a week.

3.　　　 He wishes to be a doctor.

2.　　　 He came to ask a question.

1.　　　 It is not easy to learn English well.

4．不定式的被动式有两种形式：to be done表示将要被做，to have been done表示已被做。

例如：The new cinema to be put up next year will be very large.

The cinema is said to have been built last year.

第三节 巩固练习

Ⅰ.划出下列动词不定式部分并指出在句中的作用。

3．不定式进行式表示不定式的动作已在进行，与谓语动词同时发生。

例如：When he came in, I happened to be reading at the table.

2．不定式完成式表示不定式的动作在位于动词之前发生。

例如：I’m sorry to have broken your glasses.