内容正文:
状语从句
Review
1.I will call you after dinner.
2.She feels sad because of the bad weather.
3.He studies hard in order to do well in the exam.
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时间状语
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V
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原因状语
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V
程度状语
目的状语
= I will call you after I have dinner.
时间状语从句
= She feels sad because the weather is bad.
原因状语从句
一、定义
状语从句(Adverbial Clause)
在复合句中作状语的从句叫状语从句,它可修饰谓语、非谓语动词、定语、状语或整个句子。状语从句一般由从属连词或词组引导。从句位于句首或句中时通常用逗号与主句隔开,位于句尾时可以不用逗号隔开。
e.g. I will call you as soon as I arrive there.
e.g. If he comes back, please let me know.
e.g. Although he is old, he still runs every day.
按作用分,状语从句有以下常见类别:
状语从句
时间状语从句
条件状语从句
原因状语从句
结果状语从句
目的状语从句
让步状语从句
二、时间状语从句
引导词
when
while
as
before/after
until/till/not...until
as soon as
在....时候
在....期间
一边...一边...
在....之前/后
直到.../直到...才....
一...就....
1.when 当....的时候
when引导的从句谓语动词既可以是瞬间性动词,也可以是延续性动词,从句的动作和主句的动作既可同时发生,也可以是先后发生。
瞬间性动词
延续性动词
瞬间性动词
e.g. ①It was snowing when he arrived at the station.
②Tom came back when we were cooking dinner.
③When I got to the airport, the guests had left.
2.while 在....期间
while引导的时间状语从句强调主句动作在从句动作进行的过程发生,或者同时发生。从句的谓语动词必须为延续性动词,常用进行时。
①While Linda was sleeping, Jenny ________________(help) me with my homework.
②The boy fell asleep while I ________________(read) the story.
was helping
was reading
as 引导的时间状语从句还可以表示“一边……一边……;随着”。
①As they danced, they sang a song.
②As she grew older, she gained in confidence.
③It was raining hard as I got there.
3.as 一边……一边……;随着
他们边唱边跳。
随着年龄增长,她的信心也增加了。
我到达那里时,正在下大雨。
4.before & after 在……之前/之后
①我们应该饭前洗手。
__________________________________________________________
②在我写完作业后,我要去遛狗。
________________________________________________________________
We should wash our hands before we have meals.
I will take the dog for a walk after I finish my homework.
5.till/until 直到.....
till /until 引导的时间状语从句,肯定句时主句的谓语动词必须为延续性动词。
She watched TV until/till her mother came back.
她看电视直到她母亲回来。(看电视的动作延续到母亲回来)
否定句:not......until......直到....才....;不到...不...
We won't leave here until the rain stops.
直到雨停我们才会离开这里。/雨不停我们不会离开这里。
6.as soon as 一……就……
我一到北京就给你打电话。
__________________________________________________________
他一完成工作就和你去看电影
__________________________________________________________
I will call you as soon as I arrive in Beijing.
He will go to the movies with you as soon as he finishs
his work.
【中考链接】
1. —Please give the Chinese book to Linda.
—OK. ________ I see her, I will give it to her.
A. As soon as B. Unless C. Before
2. It's raining too hard outside. We won't leave ________ the rain stops.
A. if B. after C. when D. until
3. You should turn off the lights ________ you leave the room.
A. until B. before C. although D. so
4.
(while)
________________________________________________________
While he was reading a book, the telephone rang.
三、条件状语从句
引导词
如果
if
如果不;除非
unless
只要
as long as
1.if 如果......
if 表示“如果”,引导条件状语从句。
如果明天不下雨,我们就去野餐。
_____________________________________________________________
If it doesn't rain tomorrow, we will go for a picnic.
①
②
如果你学习更努力,你下次就会考的更好。
_____________________________________________________________
If you work harder, you will do better in the exam.
if 引导的条件状语从句的复合句有时可以转换为:
祈使句+and/or...+陈述句
①如果你认真听讲,你就会学的更好。
_____________________________________________________________
_____________________________________________________________
②如果你不早点起床,你就会错过火车。
_____________________________________________________________
_____________________________________________________________
If you listen to the teacher carefully, you will study better.
=Listen to the teacher carefully, and you will study better .
If you don't get up early, you will miss the train.
=Get up early, or you will miss the train.
2. unless 如果不....;除非....
unless表示“如果不;除非”。相当于“if...not”
e.g. I won't go to the party unless I'm invited.(被邀请)
= I won't go to the party if I'm not invited.
You will fall behind unless you practice more.
=You will fall behind if you don't practice more.
3. as long as 只要....
as long as 表示“只要”,相当于so long as
①You can go out as/so long as you promise(承诺) to be back
before 10 o'clock.
_________________________________________________________________
②So long as one keeps calm, one doesn't feel the heat too
much.
_________________________________________________________________
你可以出去,只要你答应在十点前回来。
心静自然凉。
【中考链接】
①For our safety, we must keep away from the tall buildings ________ the wind blows hard.
A. if B. although C. so
②Zhang Guimei once said. “________ I’m alive, I will donate (献身) myself to teaching.”
A. Even though B. As soon as C. As long as
③Miss Xu goes running in Huanghe Park every morning ________ it rains.
A. unless B. till C. since D. as
四、原因状语从句
引导词
because
since
as
因为......
既然....
由于....
1.because 因为......
because表示“因为……”,可以用来回答why引导的问句, 不能与so连用。
①因为她没有可以交谈的朋友,所以她感到很孤单。
_________________________________________________________________
②因为他考试考砸了,所以他似乎很沮丧。
_________________________________________________________________
Because she has no friends to talk with, she feels lonely.
He seems upset/disappointed because he failed the exam.
2.since 既然......
since表示“既然……”,用来表达对方已经知道的事实或理由,一般位于句首。 相当于now that。
①Since everybody is here, let's begin.
②Since he was tired, he decided to have a rest.
③Now that the kids have left home, we've got a lot of free time.
3.as 由于......
as表示“由于……”,用来表示较为明显的原因,语气较弱,比较口语化。
①As you were out, I left a message.
______________________________________________________
②She may need some help as she's new.
______________________________________________________
你不在,我留了一张字条儿。
他是新来的,可能需要一些帮助。
【中考链接】
1.
(because, teacher, angry)
_________________________________________________
_________________________________________________
2.
(because, like, relaxed)
_________________________________________________
_________________________________________________
His teacher is angry with him because he was late for school/class again.
She likes traveling because it makes her relaxed.
五、状语从句时态
1.具体情况具体分析
①When I am free, I always go to the library with my friends.
②He was sleeping when/while the phone rang.
③I don't like him because he laughed at me before.
④If you keep exercising every day, you will become stronger.
2.在时间状语从句和条件状语从句中,如果主从句都是表示还未发生的动作,通常遵循以下时态规则:
①I will tell you the truth when I get to Beijing.
②Please let me know if you have any problems.
③You could drive the car after you get the driver's license(驾照).
主将
从现
主祈
从现
主情
从现
【中考链接】
1. —Lucy, the Dragon Boat Festival is coming. I want to learn how to make zongzi.
—OK. If my grandma ________ free tomorrow, she will teach us.
A. is B. are C. am D. will be
2. If you go to the concert with us tomorrow, you ________ a great time there.
A. have B. had C. will have D. have had
Exercises
一、单项选择。
1. Our classroom won't be clean_____we clean it every day.
A. after B. while C. unless D. because
2. We are making a big cake ________ it's Dad's birthday today.
A. because B. until C. once
3. —Happiness is about having each tiny wish come true.
—________ we work hard, we’ll make our life full of happiness.
A. If B. Unless C. Though
4. —Time to go home, Peter.
—Wait a minute. I can't go home ________ I finish cleaning
the hallway.
A. since B. after C. until
二、看图写话。
①
(if, not, rain)
②
(like, because, build up)
③
(while,sing)
④
(when, grow,want)
1.________________________________________________________________________________
2.________________________________________________________________________________
3.________________________________________________________________________________
4.________________________________________________________________________________
He will go fishing if it doesn't rain.
She likes riding because it can build her up.
She was sining while the other girl was dancing.
I want to be a policeman when I grow up.
Thank you !
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