状语从句类型及相似连词的用法区别

一、状语从句分类及常用连词：

类别连词

状语从句when, whenever, while, as, before, after, since, till, once, as soon as,etc.

状语从句where,wherever

状语从句because, since, as, for, now that, etc.

状语从句so…that, so that, such…that, that, etc.

状语从句in order that, so that, that, etc.

状语从句if, unless, as(so)long as, etc.

状语从句though, although, even if, even though, however, whatever, as,etc.

状语从句as…as, so…as, than, etc.

状语从句as, as if, as though, etc.

二、相似连词的用法区别

1.when, while, as,

while表时间，从句需用延续性动词，切不可用瞬间动词。

when表时间，从句既可以用延续性动词，又可以用瞬间动词。

as表时间，与when相似，但侧重强调主从句动作同点或同段进行。

when, while后可以接分词短语。

2.because, as, since, for

语气位置意义

because最强前或后“原因”；表客观因果关系；回答“”as较强前“由于”；把众人所知的事实当作理由since较弱前“既然”；就对方陈述的事实作为理由for最弱后“理由”；对某一事实进行推断的理由

注：上面所说的“前”，指从句在主句之前；“后”，指从句在主句之后。

3.so that, so…that, such…that

so that“以便”、“结果”表目的和结果。注意：在从句中有情态动词表目的。无情态动词表结果。

so…that “如此的…以致于”表结果。该结构常见于：

1.so+形／副＋that

2.so+形＋a(an)＋单数名词＋that

3.so＋manymuch＋复数名词（不可数名词）+that

such…that“如此的…以致于”表结果。该结构常见于：

1.such＋a(an)＋形＋名词＋that

2.such＋形＋复数名词／不可数名词＋that

4.though, although, as,

though, although在句首表“尽管”两者都可以用。但句后不能再用but。下列情况只能用though：

▲as though (=as if);even if (=even though)

状语从句种类引导的连词

▲在句末表示“然而”

as表示“尽管”，从句的表语、状语等成分要倒装。

5.whatever, however,wherever, whenever

它们是what, how, where, when的强势语气。分别等于：

no matter what, no matter how

no matter where,no matter when

状语从句种类一卡通