try

forget

remember

点津：1）love, like, hate, prefer之后，用不定式表示某一具体动作或情况，用动词v-ing表示一般性动作。

2) need, demand, want, require在表示需要时，用动词v-ing 形式的主动表被动，或用不定式的被动形式.

翻译：这块手表需要修理。

The watch needs repairing/to be repaired.

5. 动名词形式作主语的两种位置：

1.一种是v-ing形式短语位于句首 2是用it作形式主语,而将形式短语移到谓语之后,以避免句子结构头重脚轻..

翻译并背诵句型：

It is no good/use (fun, a pleasure, a waste of time) doing...

There is no use /good doing...

Summary ：In this period, we learnt something about -ing and to do. You must master the usage of these two forms and make sure the difference between them.

Grammar 课堂检测

温馨小提示:

1. 动名词作主语时,其逻辑主语通常是形容词性物主代词或名词所有格. 如:

His returning to work is a great help to us.

2. 动名词作主语,谓语动词用单数.

Collecting stamps ____is__(be) a good habit.