種類

連接詞

注意點(diǎn)

時(shí)間狀語

when, whenever, while, as, before, after, until, till, by the time, as soon as, hardly…when, no sooner…than, the moment, the minute, immediately, directly, instantly

主句表示將來意義時(shí)，從句須用一般現(xiàn)在時(shí)，while引導(dǎo)的從句中動(dòng)詞一般是延續(xù)性的，until用在肯定句中主句動(dòng)詞是延續(xù)星的，而否定句中主句動(dòng)詞為短暫性的

地點(diǎn)狀語

where, wherever

原因狀語

because, as, since, now that

because語氣最強(qiáng)，since較弱，表示大家都明了的原因，as又次之

條件狀語

if, unless, once, in case, as long as, on condition that

從句中動(dòng)詞時(shí)態(tài)不可用將來時(shí)，常用一般時(shí)代替

目的狀語

so that, in order that, for fear that

so that和in order that后常接may, should, could, would等情態(tài)動(dòng)詞

結(jié)果狀語

so…that, such….that

比較狀語

than, as….as, not so/as…as, the more…the more

方式狀語

as if, as though, as

as if和as though引導(dǎo)折從句一般用虛擬語氣

讓步狀語

though, although, even if, even though, as, no matter what, whatever, no matter who, whoever, noatter which, whichever, no matter how, however, no matter when, whenever

as在讓步狀語從句中常用倒裝形式，although和though用正常語序，可和yet連用，但不可和but連用