时间 状 语 从 句 考 点 (一) 时间状语从句 当时候：It was six oclock when I got home. Sb was doing sth when1)when 这时 Sb was about to do sth/was on the point of doing sth when Sb had just done sth when 当时候(引导持续性动作): He fell asleep while he was reading a book. 2) while 然而(用于句中) : He likes pop music while I am fond of folk music. 虽然,尽管(用于句首) While volleyball is her main focus, shes also great at basketball. 3) before 在之前,.才 We had sailed four days before we saw land. 还没来得及 Before I could get in a word, he had measured me. It was +时间段+before sb did sth 过了（时间） It will be+时间段+before sb does sth 要过（时间）才It was two weeks before we met again.两周之后我们才见面。 It will be two weeks before we meet again. 我们再过两个周才能见面。4) 几个极易混淆的时间状语从句：It was +时间点+when（当.的时候时间是.）It was 5 am when we arrived at the village.He left my room whilewhen I was reading a book.It was/will be+时间段+before(过了才要过才)It was/will be two weeks before we met/meet again.It is /has been +时间段+since（自从以来有）It is/has been 3 years since we last met.突破点：一看be动词的时态，二看时间段还是时间点。