when,while,so that,so...that,such...that,wether应该怎么区分?
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when,while,so that,so...that,such...that,wether应该怎么区分?
when,while,so that,so...that,such...that,wether应该怎么区分?
when,while,so that,so...that,such...that,wether应该怎么区分?
一 when ①当.时
while ①当.时②虽然③然而
注意:①在表示“当.时”while后面必须加延(持)续性动词,而when则无特殊要求
eg:Tom broke into the room while Ben was sleeping.
eg:Tom broke into the room when Ben closed the window.
② 如果时间状语从句的动词为延(持)续性动词 ,引领词必须用while,绝不可以用 when (英语中规定的)
eg:Tom broke into the room while Ben was sleeping.(不能用when,这很关键)
二 so 和such的区别在于:so 后面加形容词或副词
such 后面加名词
eg:Tom is so humorous(幽默的) that every one likes him.
eg:Tom is such a humorous boy that every one likes him.
注意:So.that...可用于倒装句,so that 引领结果状语从句,解释为“以致于”
eg:So complex (复杂的)was the problem that no one of us could solve the problem.
eg:I got up early this morning so that I could get to school on time.
三whether 表疑问,解释为“是否”
eg:Tom didn't know whether he could pass the exam.
注意:当从句中出现or 时,必须用whether ,不能用if
eg:Tom didn't know whether he could pass the exam or not.(此时不能用if来替代whether)