英语学习:大学英语四六级考试常考语法精讲：从句2[1]

2011年12月06日 04时04分，《英语学习:大学英语四六级考试常考语法精讲：从句2[1]》由查字典出国留学网英语编辑整理.

英语四级、英语六级语法精讲：从句

Ⅱ 状语从句

状语从句中以下四种从句考得较多，这里给予简单介绍。

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1） 时间状语从句

时间状语从句主要由以下连词引导：when， whenever， as， while， since， until， till， before， after， as soon as， once， hardly （scarcely） … when， no sooner … than。

I will discuss the matter with you when we meet tomorrow.

He didn’t go to sleep until he finished doing his homework.

You have changed a lot since we met last time.

时间状语从句还可由某些可充当连词的名词（the moment， the instant， every time，等）和副词（instantly， directly等）引导：

I will tell you the news the instant I know.

Directly the teacher came in everyone was quiet.

Note：

①before除了可表示 “在…之前”外，还可用来强调主句所表达的时间、距离很长或花费的力量相比较大，可译为“…才”。（“not … before” 可用来强调主句所表达的时间、距离很短或花费的力量相比较小，可译为“…就”）。

It was a long time before I got to sleep again.

They had not been married a month before they quarreled.

②如果位于when引导的分句之前的主句使用过去进行时、过去完成时或“was/were about to， was/were on the point of”等结构时，when表示突然发生某事，可译为“正在…突然”或“刚…就”等。这时，不能够用as或while来代替when。

I was walking on the street when I ran into my old friend John.

She had just fallen asleep when the telephone rang.

We were about to leave when it began to rain.

2） 条件状语从句

条件状语从句主要由以下连词引导：if， unless， providing/provided （that）， suppose/supposing （that）， on condition （that）， as/so long as， in case等。

So long as you work hard， you will surely achieve good results in examinations.

I shall return next Thursday unless something unexpected happens.

I will go provided that you go with me.

Please give this letter to John in case he comes.

3） 让步状语从句

让步状语从句主要由以下连词引导：though， although， even if， even though， whatever， however， whoever， wherever， no matter how/ what/ where/ when等。以下介绍几种较特殊的让步状语从句。

（1）while引导的让步状语从句多放在句首，while相当于although，表示“尽管”，“虽然”。

While I admit I did it， I didn’t intend to.

While I understand wha

2011年12月06日 04时04分，《英语学习:大学英语四六级考试常考语法精讲：从句2[1]》由查字典出国留学网英语编辑整理.

at you say， I can’t agree with you.

（2）短语“even now/then/so”相当于“though it is/was true”，表示“尽管如此”，“尽管这样”。

The fire was out， but even so， the smell of smoke was strong.

I’ve tried my best， but even now/then she is not satisfied.

（3） as引导的让步状语从句要倒装。

Child as he was， he could speak four languages.

Hard as she tried， she failed to get the job.

4） 比较状语从句

比较状语从句主要由以下连词引导：（not） as … as， （not） the same as， （not） such … as， not so … as， than， the + 比较级…， the +比较级…等。

We have had a lot more rainfall this year than we had last year.

She can speak English as fluently as her teacher （can）。

Ⅲ 宾语从句

1） 及物动词后的宾语从句

有些动词的宾语从句前还可有一个间接宾语。

I remember that we have learned this word before.

I don’t understand what you have said.

She asked the teacher how she could learn English well.

2） 介词的宾语从句

It depends on whether you want to do it or not

There is disagreement among economists about what money is and how money is measured.

Note： 在介词in后面跟that引导的宾语从句中，in that可看成是一个固定的搭配，表示“因为”或“在…方面”。

The evidence is invalid in that it was obtained through illegal means.

A turtle differs from all other reptiles in that it has its body encased in a protective shell of its own.

2011年12月06日 04时04分，《英语学习:大学英语四六级考试常考语法精讲：从句2[1]》由查字典出国留学网英语编辑整理.

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