并列句和状语从句

并列句:
递进：and, not only…but also, not…but
选择：or, either…or…,
转折：but, yet, whereas, while
因果：for, so
When 在并列句中的用法：be doing…when; be about to
do…when; have just done…when
时间状语从句：
When: 既可以表示同时发生，也可以表示先后发生；既
可以加延续性动词，也可以加非延续性动词；
While: 表示同时发生，只能接延续性动词
Eg. Please don’t talk so loud while others are working.
As: 表示一边…一边….; 随着
Eg. He works as he sings.
As time goes on, …
一…就…: as soon as, immediately, instantly, the minute,
the moment, no sooner…than…, hardly…when…
Eg. Hardly had I got home when it began to rain.
= No sooner had I got home than it began to rain.
till, until, not…until: till, until用在肯定句中，但是till 不
能用在句首；not…until用在句首要倒装。
Eg. Not until you told me did I know it.
Before, since
Before：过了多久之后才；在…之前还要多久; 过了多久就…;
还没来得及就…
Eg. It won’t be long before I come back.
He went out before I could get a word.
Since: 其后用一般过去时，主句用现在完成时。
It is\has been + 一段时间+ since +一般过去时
It has been four years since I left(延续性动词) school.
It has been one year since I smoked(非延续性动词) a cigar.
地点状语从句：where
Eg. You’d better make a mark where you have questions.
You’d better make a mark at the place where you have
questions.
原因状语从句:
Because: 回答why 的提问，语气最强，可以放在句首，
句中；
Since：放在句首=now that
As: 可以放在句首或句中
目的状语从句：
So that, in order that : 意思相同：为了… ; 但是so that 不
能放在句首。
in case, lest, : 以防万一
for fear that：唯恐…
结果状语从句：
So that, so…that, such…that: 如此…以至于…
So…that 和 such…that的区别
So + 形、副+that
So+形、副+a\an+可单+that
So + many\few\much\little(少)+名词+that
Such + a\an+形、副+可单+that
Such +形、副+可复、不可+that
条件状语从句：
If，unless（if not），on condition that，so\as long as,
suppose\supposing(假定)，provided\providing that(如果)，only
if（只有）
方式状语从句：
As(按照), as if\though（好像）
Eg. Do as you are told to, and you will reach your goal one day.
I feel as if I have a fever.
让步状语从句：
Although\though, even if\ even though(即使)
As(虽然)：放在句首时倒装
Eg：Young as he is, \Child as he is\ Try as he might
While: 放在句首译为“虽然”
While I admit there are problems, I don’t think that they can’t be
solved.