高中英语知识讲解 高考总复习时间原因条件状语从句

高考总复习：时间、原因、条件状语从句

真题再现

1. （2015陕西高考）I believe you will have a wonderful time here you get to know everyone else.

A. thought

B. as if

C. once

D. so that

2. （2015重庆高考）If you miss this chance, it may be years ____ you get another one.

A. As

B. before

C. since

D. after

3. （2015天津高考）We need to get to the root of the problem______ we can solve it.

A. while

B. after

C. before

D. as

4. （2015四川高考）There is only one more day to go your favorite music group play live.

A. since

B. until

C. when

D. before

5. （2015江苏高考）It is so cold that you can't go outside ________ fully covered in thick clothes.

A. if

B. unless

C. once

D. when

6. （2015北京高考）You won't find paper cutting difficult _____you keep practicing it.

A. even though

B. as long as C .as if D. ever since

7. （2015北京高考）_____the damage is done, it will take many years for the farmland to recover.

A. Until

B. Unless

C. Once

D. Although

8. （2016 北京高考）I really enjoy listening to music ___ it helps me relax and takes my mind away from other cares of the day.

A. because

B. before

C. unless

D. until

9. （2016 天津高考）______ the average age of the population increases, there are more and

more old people to care for.

A. Unless

B. Until

C.As

D. While

1. C。句意：我相信一旦你了解这里的每个人，你将玩得很愉快。though虽然；as if好像；once 一旦；so that为了。所以选C。

2. B。此题考查的知识点是状语从句。句意：如果你错过了这次机会，也许要等若干年后你才能得到另一个机会。before引导的时间状语从句，在……之前还需要多长时间。故B正确。

3. C。本句考查的是时间状语从句的用法。句意：在我们解决问题之前，我们需要找到问题的根源。A. while当……时候；B. after在……之后；C. before 在……之前；D. as一边一边，强调动作同时进行。故选C。

4. D。句意：在你最喜欢的乐队现场表演前，就剩一天时间了。since表示“自从……以来”。until 表示“直到……”。when表示“当……的时候”，before意为“在……前”，符合题意。

5. B。本题考查状语从句连词的用法，句意为：外面很冷你不要出去，除非身上盖个厚厚的毯子。

6. B。句意：只要你不断练习，你不会觉得剪纸很难。本题考查状语从句。even though即使；

虽然；as long as只要；as if犹如；好像；ever since 自从。

7. C。句意：一旦农田被毁坏，将需要许多年的时间才能得以恢复。本题考查状语从句。until“到……为止；直到……才；”unless“如果不；除非”；once“一旦，一经……便”；although“虽然；然而；尽管”。

句意：我真的喜欢听音乐，因为它能帮助我放松，把我从一天中关注的其他事项中拉8. A.

开。

9. C。由于人口的平均年龄增加，越来越多的老年人需要照顾。

知识讲解

时间状语从句

一、普通从属连词

引导时间状语从句的普通类从属连词有when（当……时），while（在……期间），as（当……，一边……一边……），before（在……之前），after（在……之后），since（从……以来），till/until （直到），whenever（无论何时），as soon as（一……就）等。

When I went into the classroom, he was reading.

He read a newspaper as he went along.

We must strike while the iron is hot.

I will tell you after they leave.

I told him to e back whenever he wants to.

I waited till/until she was back.

Once time is gone, you will never get it back.

注意：在时间状语从句中，不能用一般将来时、过去将来时态或将来完成时，而要用相应的一般现在时态、一般过去时或现在完成时来代替。

I'll telephone you as soon as I get there.

Don't get off the bus until it has stopped.

二、含 time的短语

可引导时间状语从句的time短语有every time, each time, (the) next time, (the) last time, by

the time, the first time, any time 等。

Every time I listen to music, I'll think of it.每当我听音乐，我就想起这事。

He didn't tell me anything the last time I saw him.上次我见到他时他什么也没告诉我。

Each time she moved her head she let out a moan. 她每转动一下头，就发出一声呻吟。

三、表示“一……就……”

除as soon as外，还有三类：

名词型——the moment, the minute, the second, the instant；

副词型——immediately, directly, instantl y；

句式型——no sooner…than…, hardly/scarcely…when…。

The moment I saw him I knew that there was no hope.

I came immediately you called.

I had no sooner got home than it began to rain.

如果hardly, scarcely 或no sooner置于句首，句子必须用倒装结构。

Hardly/Scarcely had I got home when it began to rain.

No sooner had I got home than it began to rain.

四、对before从句的理解

before的本意为“在……之前”，根据具体语境还可理解为“还没来得及/还没有……就……，趁着还没……就……，不知不觉就……，……才……”等。

I had not sat long before he came back.我没坐多久他就回来了。

He almost knocked me down before he saw me. 他几乎把我撞倒才看到我。

Before I could get in a word, he measured me. 我还来得及插话，他就给我量好了尺寸。

我要趁着天还没黑把花浇好水。lowers before it gets dark.I'll water the f