动词不定式作状语和结果状语.doc

动词不定式作 状语 用法 例句表示目的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.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 work on time.表示结果only to do sth.常表示出乎意料的结果 We hurried to the classroom only to find none there.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 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. sothat既可以引导目的状语从句，也可以引导结果状语从句；而sothat只引导表示结果的状语从句。 sothat引导目的状语从句。 sothat引导的目的状语从句，作“以便”、“为的是”解，从句中通常用may(might)或can(could)等情态动词。例如： WelearnEnglishsothatwemaygetmoreknowledge.我们学英语为的是获得更多的知识。 Theygotupearlysothattheycouldcatchthefirstbus.他们早起，以便能赶上第一班公共汽车。 sothat引导的结果状语从句。 sothat引导的表示结果的状语从句作“因此”、“以致”、“所以”解。Hespokeclearly,sothateverybodyunderstoodhim. 他讲话讲得很清楚，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：Sobrightwasthemoonthattheflowerswerebrightasbyday. 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