Module 5

A Lesson in a Lab

Grammar

班级 姓名 小组

学习目标：

掌握-ing form and the infinitive用法，完成相关练习。

学习重难点：

-ing form and the infinitive用法及熟练使用。

导学流程

【了解感知】

作主语

　(1) -ing形式和不定式都可在句中用作主语。一般情况下可以互换。

To learn a foreign language is not easy. =Learning a foreign language is not easy. 学习外语是不容易的。

　(2) 表示具体的, 特定情况下的或有待于完成的动作时, 常用不定式。

①To finish such a novel will take me several days. 读完这本小说需要花去我几天的时间。

② It's impossible to get to Beijing in three hours this time, because there is something wrong with our car. 看来这次三个小时是到不了北京了, 因为我们的车出问题了。

　(3) 在 "It is + 形容词(如necessary) + for/ of sb. "的结构后, 通常用不定式作真正的主语。而 "It is no use/no good/a waste of time"后通常接ing形式。

　① It's quite impossible to finish the work with so little money.

　 用这么少的钱想完成这项工作是不可能的。

　② It's no use asking him for help.

　 向他求助是没有用的。

　(4) There is no 结构后只能接ing形式。There is no knowing whether he is dead or alive. 无从得知他是死是活。

　(5) (5) 在remember, forget, try, go on, regret, mean, stop, want, need, require等动词后既可接ing, 也可接不定式, 但含义不同。

【深入学习】

1) remember to do_______________remember doing_______________

2) forget to do _______________ forget doing _______________

3) go on to do_______________ go on doing _______________

4) regret to do _______________regret doing_______________

5) mean to do_______________mean doing _______________

stop to do _______________ stop doing_______________