简述in order that ,so as ,so that ,in order to区别及哪个同义哪个?

题目

简述in order that ,so as ,so that ,in order to区别及哪个同义哪个?

答案

1. in order that后面接的是目的状语从句,而且该此句的位置不限,可以放在主句之前之后均可.
如：In order that every student might understand it, the teacher explained that passage again and again.
= The teacher explained that passage again and again in order that every student might understand it.
为了使每个学生都明白, 老师反复讲解那一段.
2. so that既可引导目的状语从句,也可以引导结果状语从句.
1）其引导结果状语从句时,so that翻译为“以至于...”,经常可以和so/such...that...转换,且从句只能放在主句之后.
如：He got up late so that he was late for school.
= He got up so late that he was late for school.
2）其引导目的状语从句时,从句只能放在主句之后,此时可以和in order that换用.
如：He got up early so that he could take the first bus. √
= He got up early in order that he could take the first bus. √
但是：So that he could take the first bus, he got up early. ×
3. in order to和so at to均引导目的状语（注意：不是目的状语从句）,即其后为不定式短语.
两者区别在于so as to do sth也不能放于句首,而in order to do sth没有位置限定.
如果目的状语在句尾,则in order to和so as to可以互换.
如： He got up early so as to take the first bus. √
= He got up early in order to take the first bus. √
但是：So as to take the first bus, he got up early. ×