1.as…as 和……一样
　　中间必须用形容词或副词原级。例如：

　　This classroom is as big as that one. 这间教室和那间一样大。He runs as fast as Tom. 他和汤姆跑的一样快。

　　否定结构：not as/so…as,“不如……,和……不一样”。上面的两个句子可分别改为：

　　This classroom is not as/so large as that one.

　　He doesn’t run as/so fast as Tom.

　　练习：我的书包和你的一样好。 他的英语说的和你一样好。

　　2. as soon as 一……就……

　　用来引导时间状语从句。若主句是一般将来时，从句要用一般现在时。例如：

　　I’ll tell him the plan as soon as I see him. 我一看到他就告诉他这个计划。

　　He’ll go home as soon as he finishes his work. 他一完成工作就回家。

　　3. be busy/enjoy/hate/go on/finish doing sth. 忙于/喜欢/讨厌/继续/完成做某事

　　在enjoy, finish, hate, go on, be busy等词语后，一般用动词-ing形式作宾语。例如：

　　Lin Tao is busy making a model plane. 林涛忙着做飞机模型。

　　My mother enjoys taking a walk after supper. 我妈妈喜欢晚饭后散步。

　　I hate watching Channel Five. 我讨厌看五频道。

　　When someone asked him to have a rest, he just went on working. 当有人让他休息一会儿时，他仍继续工作。

　　I have finished writing the story. 我已经写完了故事。
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