状语从句高考考点 高考状语从句讲解

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状语从句高考考点高考状语从句讲解

语法专题

状语从句

考点归纳

考点一:对when,while,as,since等词的辨析

when,while,as,since在引导时间状语从句时的区别可参见下表:

和从句动词所表示的动作或状态是同时发生的,它引导的从句用延续性动词,若从句中是非延续性动词,不能用while。

表示“一边……一边”的意思时用as或while。

As/While she was cooking she was singing songs、

She sang as she cooked、

当主句谓语动词表示短暂动作,而从句动作可以持续一段时间时,三个连词都可以用。

Tom poke his leg while/when/as he was playing football、注意:

① when也可用作并列连词,其意义为“就在那时,这时”,相当于and at this/that time,常用下列句式中:

We were having a meeting when someone poke in、

We were about to set off on our way,when it suddenly began to rain、

He had just left the room when it rained、

另外when还可表示原因“既然”。

It was foolish of you to take a taxi when you could easily walk there in five minutes、

②while除引导时间状语从句外,还可引导让步或条件状语从句及作并列连词连结两个并列的简单句。如:While he was respected,he was not liked、

There will be life while there is water and air、

He is a worker while I am a doctor、

since引导从句时在主句是现在完成时的条件下,从句若为非延续性动词的一般过去时,表示从该动作的完成时刻算起,因此动词的语法形式与词义一致,是肯定意义;若从句动词为延续性动词的一般过去时,表示动作或状态从最后一次发生到现在。因此其含义与动词的词义恰好相反,具有否定意义,若从句延续性动词用现在完成时,则动词的语法形式与词义一致,是肯定意义。

I haven”t heard from her since she left Beijing、

自从她离开北京后,我从未收到她的信。

I haven”t written to her since she lived in London、

自从她离开伦敦以后,我从未给她写信。

Since I have been at this school we have three headmasters、

自从我到这所学校以来已有过三位校长了。

试比较:

They have never been to see me

since I was ill、

since I have been ill、

考点二:before的用法

before作为连词时的基本意义是“在……之前”,用于表示时间或顺序。如:Turn the light off before you before you speak、但在不同的语境中before有不同的意义:

①before表示“不等……就”;

②before用于before /realize中表示“不知不觉,还没弄清就……”;

③before表示“趁……还没来得及……”;

④before用于it was/will be+时间+before句型中表示“过了多久才……”或“没多久就……”。

考点三:考查一些特殊的名词词组或副词引导的时间状语从句一些表示时间的名词词组如:the moment,the minute,the day,the year,every time,next time,副词如immediately,directly,instantly等也可引导时间状语从句。

考点四:till/until的用法

till与until意义相同,多数情况下可换用,但在句首、与not无间隔连用时及在强调中只能用until。在肯定句中,主句谓语动词必须是延续性动词,意为“动作持续到某时间为止”。

He remained there until she arrived、

在否定句中,主句谓语动词应是非延续性动词,意为“动作直到某时才开始”。

He won”t go to bed till/until she returns、

考点五:考查as,since,because,now that等引导的原因状语从句

表原因的as,since,because,now that等的区别可参见下表:

内涵语气能否回位置能否被项目答why 强调 because 直接因果强能主句前能

关系或后

as 双方都知弱不能主句前能

道的原因或后

since/now 或不言自主句前

that 明的原因 if/when 主句前不能

或后

Because he”s too busy,he can”t do it now、

Since he can”t answer the question,you may ask someone else、

Now that it has stopped raining,let”s go at once、

As he was not well,I decided to go without him、

考点六:考查where及wherever引导的地点状语从句

地点状语从句由where或wherever引导,放在主句前、后皆可。where表特指,而wherever表泛指。

Make a mark where you have a question、

Wherever he happens to be,John can make himself at home、注意:

①地点状语从句放于句首时常兼有抽象的条件意味。

Where there is heartfelt cooperation, does it really matter who does what?

只要有真诚的合作,谁干什么又有什么关系呢?

②应区别地点状语从句与定语从句。

Go back where you came from、

Go back to the village where you came from、

考点七:考查条件状语从句引导词的选择

引导条件状语从句的从属连词有if,unless除非,so/as long as,in case,on condition that、、、,provided that、、、/providing that,suppose/supposing等。

You”ll fail the exam unless you study hard、 As long as you don”t lose heart,you will succeed、

I must get well prepared in case he es、

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