状语从句(含练习与答案)

第十二讲 状语从句（含练习与答案）

担任状语的从句叫状语从句，可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。

一、时间状语从句：

引导词有after，before，as，once，since，till，until，when，whenever，while，as soon as，the moment/minute…（一…就），the time, the day, every time, next time, each time，by the time ，no sooner…than（一…就），hardly(scarcely)…when（一…就）immediately/directly等．

Each/Every time he comes here, he will drop in on me.

He was ill last time I saw him.上次我见到他时他病了．

Hardly had I got to the office when my wife phoned me to go back home at once.

=No sooner had I got to the office than my wife phoned me to go home at once.

I recognized him immediately I saw him.

※ when, while与 as

当主句动作时瞬时的， 从句动作是延续的，三者都可以用。

when引导的从句动词可以是延续性的或短暂性的，在“be…when…”句式中when表“at that time(就在这时)”意。

while引导的从句中动词必须是延续性的；有时并不表示时间，而表示对比，意“而”、“却”，并列连词，表对照。

As 强调主、从句动作同时或几乎同时发生，意为“一边…一边…”。

When I got home I found the door locked.

While / When / as we were working in the fields, it suddenly began to rain.

He was wandering through the streets when a bike hit him.

I was about to go out when the telephone rang.

I had just arrived at school when my wife phoned me to go home.

His pencil is red, while mine is yellow.

John sang happily as he went along.

※ till与until

一般情况下可以互换，但until可以位于句首，till则不能。

Until it stops raining，the children can’t go out.

＝Not until the rain stops can the children go out.

二、地点状语从句

引导词有where，wherever.

I’ll go wherever the people want me to go. (wherever＝to any place where)

He works where his grandfather fought. (where＝in the place where)

Where there is a will, there is a way. (Where＝In the place where)

三、原因状语从句

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