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1、动词不定式作 状语用法 例句动词不定式直接做目的状语 We work hard to be admitted into a key university.in order to do sth.作目的状语，可以位于句首，句中In order to finish his work on time,he worked like crazy=He worked like crazy in order to finish his work on time.表示目的so as to do sth.作目的状语，不可位于句首He worked like crazy so as to finish his wo
2、rk on time.only to do sth.常表示出乎意料的结果 We hurried to the classroom only to find none there.表示结果enough to do;too to do;soas to do;suchas to do 结构中，to do表示结果The girl was so kind as to help the old man off the bus.Im not such a fool as to believe that.Hes old enough to make a trip alone.Its too cold for
3、you to word outside.表示原因动词不定式可以直接表示原因 He was astonished to hear the terrible news.结果状语从句结果状语从句的从句部分用来补充说明主句中谓语动作发生的结果，通常主句是原因，从句是结果，从句常位于主句后。引导结果状语从句的从属连词主要有 so that, sothat,such that 等1. so that 既可以引导目的状语从句，也可以引导结果状语从句；而so that 只引导表示结果的状语从句。 so that 引导目的状语从句。 so that 引导的目的状语从句，作 “以便” 、 “为的是”解，从句中通常
4、用may(might)或 can(could)等情态动词。例如： We learn English so that we may get more knowledge. 我们学英语为的是获得更多的知识。 They got up early so that they could catch the first bus. 他们早起，以便能赶上第一班公共汽车。 so that 引导的结果状语从句。 so that 引导的表示结果的状语从句作 “因此”、 “以致”、 “所以” 解。He spoke clearly, so that everybody understood him. 他讲话讲得很清楚，
5、所以大家都听懂了。 2. sothat 和 suchthat 的用法比较so 是副词，用以修饰其后的形容词或副词;such 是形容词，用以修饰其后的名词或名词短语so +adj./adv.+thatso +adj.+a/an+n.+thatso+many/few/much/little+n.（可数名词复数或不可数名词）+thatsuch+a/an+adj.+n.+thatsuch+adj.+n.(可数名词复数或不可数名词)+that。3. so/suchthat 句型中的“so+形容词（副词） ”可以提至句首，以加强语气，但要注意用倒装语序。例如：So bright was the moon that the flowers were bright as by day. 在如此明亮的月光下，花儿就象白天一样鲜艳。 4. 由 so that 和 sothat 引导的结果状语从句有时可与表结果的 soas to 引出的不定式短语转换He arrived so late that he missed the train= He arrived so late as to miss the train
