連接詞的作用不容忽視，詞雖簡單常見，但是卻串聯(lián)起了一個個句子，讓句與句之間的關系不同，或因果相連，或意思更進一步……
下面我們從從句的角度了解下連接詞：
1.名詞性從句
關系代詞：what,who,whom,which
關系連詞：that,when,where,how
2.形容性從句
關系代詞：that,who,whom,whose, which,as
關系連詞：where,when,why,how
3.副詞性從句
時間狀語從句
when,while,as,before,since,till,
until, as soon as
①一些時間名詞：the moment, the instant, the minute, the day, next time, every time
②一些副詞：instantly，immediately，directly
③固定搭配的連詞：no sooner...than, hardly...when, scarcely...when
地點狀語從句
when
wherever, anywhere, everywhere
原因狀語從句
because，as, for, since
seeing that, considering that, now that, given that, in that, in as much as, in so much as
目的狀語從句
so that, in order that, that
lest, for fear that, in case, in the hope that, on purpose that, for the purpose that, to the end that
結果狀語從句
so...that, so that, such...that
such that, to the degree that, to the extent that, to such a degree that, to such an extent that
條件狀語從句
if, unless
suppose, supposing, providing, provided(特別關注：supposed, provide不用作條件從句的連詞)， on condition that, so long as, as long as
讓步狀語從句
although, though, even though, even if
while(一般用在句首)， as（用于倒裝結構)，whatever, whoever, whichever, however, whenever, wherever, whether...or..., as+adj.+as+主謂結構（句首)
比較狀語從句
as, than
the more...,the more...;just as..., so...;A is to B what/as C is to D; no more...than; not A so much as B/not so much A as B
方式狀語從句
as, the way
