条件状语从句练习题及答案

条件状语从句练习题及答案精品文档

条件状语从句练习题及答案

表示在某种条件下某事很可能发生。

If we pay much attention to the earth, we’ll have a better world.

如果我们多关爱地球，就会拥有一个更美好的世界

If it rains tomorrow, what shall we do?

如果明天下雨，我们怎么办,

注意:if还可以引导虚拟条件句，表示不可实现的条

件，从

句中多用一般过去时或过去完成时。

What would happen if there were no water ?

如果没有水会怎样,

2.unless引导的条件状语从句

unless的意思是如果不，除非。可与if...not互换。You will fail in English unless you work hard.

你英语考试会不及格的，除非你更加努力。

3.as /so long as引导的条件状语从句

as /so long as意思是“只要”

So long as you’re happy,i will be happy.

只要你高兴，我就高兴。

4.once引导的条件状语从句

once引导的条件状语从句，意为“一旦...，就”，

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从句可置于主句前或后

Once you begin,never stop.

一旦开始，就绝不要停止

Maths is easy to learn once you understand the

rules.

一旦你理解了规则，数学就不难学了。

提示:在条件状语从句中，用一般现在时代替一般将来时，用一般过去时代替过去将来时。 If the weather is

bad next week, we’ll put off the climbing.

如果下周天气不好，我们将推迟爬山。

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状语从句

由从句担任的状语，在句子中可修饰谓语、形容词、副词或是整个句子，它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。状语从句是一较大的语法项目，也是近几年高考题中常见的一个重要试点。高考中已考查了时间、让步、地点、条件、目的等状语从句，这些从句仍是今后高考热点，应作充分准备。同时对方式状语从句也应引起重视。

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时间状语从句

表示时间的状语从句可由when, as, while, whenever,

after, before, till , since, once, as soon as , by the time, no sooner … than, hardly … when, every time等引导。 e.g. When I came into the office, the teachers were having a meeting.

He started as soon as he received the news. Once you see him, you

will never forget him. No sooner had I gone to bed than I went to sleep.

原因状语从句

原因状语从句是表示原因或理由的，引导这类从句的

最常用的连词是because, since, as , now that等，for 表

示因果关系时为并列连词，语气不如because强。

e.g. He is disappointed because he didn’t get the position.As it is raining, I will not go out. Now that you mention it, I do remember.

地点状语从句

引导地点状语从句的连词是where 和wherever等。

e.g. Sit wherever you like.

Make a mark where you have a question.

目的状语从句

引导目的状语从句最常用的词是so, so that, in

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order that, in case等。

She has bought the book in order that she could follow the TV lessons. He left early in case he should miss the train.

结果状语从句

结果状语从句是表示事态结果的从句，通常主句是原

因，从句是结果。由so that , so … that, such … tha t

等引导。

e.g. She was ill, so that she didn’t attend the

meeting.He was so excited that he could not say a word. She is such a good teacher that everyone admires her.

条件状语从句

条件状语从句分真实性与非真实性条件句。引导条件

状语从句的词主要有if, unless, so long as, on

condition that, so far as, if only 。注意:条件从句

中的if 不能用whether替换。

e.g. If he is not in the office, he must be out for lunch. You may borrow the book so long as you keep it clean. So far as I know, he will be away for three months. You can go swimming on condition that you don’

t go too far away from the river bank.

If he had come a few minutes earlier, he could

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have seen her.

让步状语从句