1. 了解单句的句构

主语

Learning English with Peter is fun. (动名词作主语：表已知的事实)

To marry her is my dream. (不定式短语作主词：表尚未发生且不知何时会发生的事)

That he doesn’t study makes me angry. (名词从句：句子变成名词)

判断动词： 我 他。 他被我 。

dance (不及物) ; punish (及物) ; happen (不及物)

2. 连词

and , or, on , but, because, although…….

一个句子不可有二个连词

3. 分词句构

Being rich, he feels happy every day.