clauses of result(结果状语从句)

结果状语从句由连词 so, so that, that, such that, but (that), with the result that 和关联词 so...that, such...that 来引导。但是，在 so(主句)...that(从句)结构中，位于主句中的 so 可以省略。结果状语从句与目的状语从句的主要区别是：1. 目的状语从句一般使用情态动词，结果状语从句一般不使用情态动词；2. 结果状语从句只能放在句末；3. 结果状语从句常常用逗号与主句分开：

A. so

1. He wasn't feeling well so he went to lie down on the couch. 他觉得难受,所以躺到长椅上。

2. They wanted it, so they agreed to pay more than the normal price. 他们需要它，所以同意出超常的价钱。

B. so that

1. One of her lungs is affected a little, so that she has to rest. 她的一个肺受了轻微感染，所以她必须休息。

2. My pencil fell under my desk, so that I couldn't see it. 我的铅笔掉到书桌下面去了，所以我看不到它。

C. so... (that)

1. She was so happy (that) she actually cried. 她是那么高兴,以致她真的哭了。

2. That animal has so small a mouth that it can hardly eat anything. 这个动物嘴很小,以致几乎不能吃食。

3. She was so angry (that) she couldn't speak. 她气得说不出话来。

D. (so)... that

I'm not a cow that you should expect me to eat grass! 我不是牛,所以你不应当指望我去吃草!

应当注意,当 so 位于句首时,主句要实行主谓语倒装(见 so $^{2}$ ):

1. So absurd was his manner that everyone stared. 他的举止那么可笑，以致大家都盯盯瞧着他。

2. So terrible was the storm that whole roofs were ripped off. 暴风雨迅猛异常，以致整个屋顶都被吹掉了。