2022年牛津译林版中考英语专题复习1：状语从句

中考语法专题复习1：状语从句
一、时间状语从句
表示时间的状语从句可由when, as, while, after, before, till (until), since, as soon as , by the time等引导。

1. when “当...... 时”，引导时间状语从句，表示主句的动作和从句的动作同时或先后发生。

从句可以用延续性动词，也可以用短暂性动词。

When I walked past, he was practising playing the piano.
The baby stopped crying when he saw his mother.
when也可以作并列连词，表示一个动作正在进行的时候，突然间发生了另外一件事。

We were talking happily, when the telephone rang.
2. while引导的动作必须是持续性的，强调主句和从句的动作同时发生，侧重主句和从句动作的对比。

They rushed in while we were discussing an important problem.
while也可以作并列连词，表示转折关系，意为“而”。

I like listening to music while my bother prefers to do sports.
3.as引导时间状语从句，用来表示同时发生的两件或几件事情，可以是持续性动作也可以连接两个同时发生的短动作。

As I got up, I saw my breakfast lying on the table.
As Millie walked past the bookshop, she suddenly thought of buying a TV guide.
4. before“在......之前”，引导时间状语从句，表示主句的动作发生在从句的动作之前；
Please close the window before you leave /leaving the room.
He once was a cook before he went to college.
5. after “在......之后”，引导时间状语从句，表示主句的动作发生在从句的动作之后。

He called me after he arrived in London.
注意：before, after, when , while 引导的从句是持续性动作时，可以直接用动名词形式替代从句。

前提是从句与主句的主语是一致的。

I told him he should try to have a talk with his parents when feeling stressed.
Take a map of Beijing with you while travelling. I had a glass of milk before going to bed.
They had a rest after finishing the work.
6.Since引导的时间状语从句译为“自从..... ”主句常用现在完成时，从句常用一般过去时。

They have been friends since he came here. We have never met each other since we left school.
常用句型：It is +时间段+ since 从句“自从......有多长时间了”。

It's / It has been three years since the new kind of medicine was invented.
7.as soon as“一......就”，表示从句的动作一发生，主句的动作马上就发生。

I will call you as soon as my sister comes back.
I was angry as soon as I thought of it.
8.till/until“直到......为止”，常用not ...until 形式，“直到......才”，这时的until 可以用before 来替换。

We will work hard on it until we get the best result. I won't believe it until I see it with my own eyes.
二、原因状语从句：表示原因或理由，最常用的连词是because（因为）, since（既然）,as（由于）。

The doctors came because the patient needed an operation.
Because it rained heavily, I have to stay at home. = I have to stay at home because of the heavy rain.
Since you are ill, you'd better not go to work.
三、目的状语从句：引导目的状语从句最常用的词（组）是so that（从句谓语常有情态动词）等。

You'd better listen carefully so that you won't miss anything. (=in order not to )
The teacher raised his voice so that she could be heard by all the students.
四、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, such … that 等引导。

She is such a good teacher that we all admire her.
The book is so expensive that I ca n't afford to buy it. = The book is too expensive for me to buy.
=The boo k is not cheap enough for me to buy.
We w ere so satisfied with the result that the children will be rewarded.
五、条件状语从句：引导条件状语从句的词（组）主要有if, unless。

Unless it rains, we will go there by bike. He knew that if he tried his best, he would pass the exam.
六、让步状语从句：可由although, though, as, even if (though), however, whatever等引导。

Though he is a child, he knew a lot about the history of China.
You may ask the robot to do whatever you like.
七、比较状语从句：比较状语从句常用than, so (as) … as, the more … the more…等引导。

I think Chinese is more popular than any other subject.
This car made in China is as good as those made in the USA.
The busier they are, the happier they will be. The more you practise, the better you will play.
八、使用状语从句时要注意的问题
1) 在时间和条件（有时也在方式、让步等）从句中，主句是一般将来时，从句通常用一般现在时表示将来；We’ll go outing if it doesn’t rain tomorrow.
2)当主句的谓语动词是情态动词加实义动词的时候，从句通常用一般现在时；
The traffic mus t stop when the traffic lights are red.
3)当主句是祈使句时，从句也用一般现在时；Put up your hand if you have questions to ask.
4) 当主从句都是陈述过去，那么主从句都可以用过去时。

She could sing when she was four years old. 配套练习：
一选择填空
1.I wonder _____________________.
A.if Dr Ma still work s on the OBRIS plane
B. how much does the tallest man in the world weigh?
C.when Audry Hepburn had entered the film industry
D.that Armstrong was the first man to walk on the Moon
2.If the government ____attention to controlling food safety now,our health ____ in danger.
A.won't pay; is
B.doesn't pay ;is
C.won't pay;will be
D.doesn't pay;will be
3.If you ___ him tomorrow, please ask him if he _____ to work on the farm with us.
A.see;goes
B.will see;goes
C.will see;will go
D.see; will go
4. Most families in China now have one child.Parents should teach them ____others when they are young.
A. what to play with
B.when to g et on with
C.which to play with
D.how to get on with
5.Boys _____ model planes to dolls,while girls ____ have dolls than model planes.
A.would rather;prefer
B.prefer;would rather
C would rather;would ra ther . D.prefer,prefer
6.----What language is that guy speaking? I can hardly catch a single word.
----_____.He is from India,so I guess it is Hindi.
A.Neither can I
B. Neither I can
C.So I can
D.So can I
二动词填空
1.We don't know when the sports meeting _____(hold).B ut we will let you know when we ____(know).
2.He said he ____(give)me a call as soon as he reached Paris the next month.
3.You 'd better not listen to music while you ____(do) your homework.
4.I found a wallet lying at a corner when I _____(sweep) the floor.
5.Be careful when you _____(cross) the street,or you ______(hit) by the car.
6.You can go to your teacher for help when ______(have) problems with your studies.
7.How many books ___they _____(read) since the end of last month?
一、ADDDB A
二、Will hold/ know 2. would give 3. are doing 4. were sweeping 5. cross will hit 6. having 7. have read。