气动节流阀-爷爷的英文
状语从句
在复合句子中修饰谓语(或其他动词)、形容词、副词或是整个句子的从句被
称为状语从句。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。主要考查
不同种类的状语从句的连接词以及主句和
状语从句的时态。
分类
时间状语从句
引导词
after, before, until,
since, as soon
as, by the time等引导
地点状语从句
条件状语从句
原因状语从句
目的状语从句
结果状语从句
让步状语从句
方式状语从句
常由where, wherever等
常用连词是if, unless
他回来了我给你打电话。
Where
there is water,there is life.
哪里有水,哪里就有生命。
______________________,I will stay at home.
如果明天下雨,我将待在家里。
最常用的连词是because, since,
由于天冷,我要待在家里。
as , for 等
常用连词是so that, in
order that
_________________________________
She got up early______________________
她起床早是未来能赶上早班车。
常由so…..that , such….that,
so He was_________________he could say
that
等引导
可由although,though,even if,
even
though等引导。
常由as,as if,as though等引导
nothing.他那么兴奋,以至于什么也说不出来。
_______________________,he knows a lot.
虽然他是一个孩子,但是他知道很多。
你必须按我教你的方法做这练习。
You
must do the exercise________________
__________________
比较状语从句
时间:
当主句是一般将来时时,as soon as
引导的时间状语从句中用一般现在时间表示将来的时间。
例如:As soon as the
rain stops, we will leave. 雨一停,我们就离开。
一般
情况下,时间和条件状语从句的谓语动词一般用“一般现在时”表示“一般将来时”,用“现在完成时”表示“将来完成时”。
由before和after引导的时间状语从句。注意before引导的从
句不在用否定式的谓语。并且用before引导的从
句位于主句之后,有时翻译成“就,才。”还要注
意从句和主句之间的时间关系。当主句用将来时,从句总是用现
在时。如果before引导的从句谓语
用的是过去时,则主句动词多用过去完成时。这样以便体现动作发生的先后。
After表示主句动作发
生在从句动作之后。主句和从句的动作的时间关系正好与before引导的从句相反。
由till或
until引导的时间状语从句,一般情况下2者可以互换,但在强调句中多用until,并且要注意,如果主
句
中的谓语动词是瞬间动作是,必须用否定形式,如果主句中的谓语动词是延续性动作时,用肯定或否定
形式都可以,
但表带的意思不同。
由since引导的时间状语从句的谓语动词可以是延续性
的动词,又可以是瞬间动词。一般情况下,从句谓语动词
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常用than,so( as) ……as等引导。 我犯的错误比你犯的多。
____________________________________.
例句
由when , as, while, whenever, I will call
you_____________________
用一般过去时,而主句的谓语动词用现在完成时。但在It is + 时间 +
since从句的句型中,主句多用一般现在时。
By the time引导的时间状语从句,在一
般情况下,如果从句的谓语动词用一般过去时,主句的谓语动词用过去完
成时;如果从句的谓语动词用一
般现在时,主句的谓语动词用将来完成时。
连词before, after,
since, until(till). 当他们表示时间时,他们既是介词又是连词。
He
usually drinks a cup of tea before he goes to
school. 连词
He usually drinks a cup of tea
before going to school. 介词
He usually
drinks a cup of coffee after he comes back from
school. 连词
He usually drinks a cup of coffee
after coming back from school. 介词
I have
lived in Dalian since my son was born in 1999. 连词
通常情况下,主句用现在完成时,从句用一般过去时。
I have lived in
Dalian since 1999. 介词
I will wait here
until(till) you finish your job. 连词
I will
wait here until(till) 8pm. 介词
主句含有情态动词,从句用一般现在时
When the lights are red,
the traffic must stop.
主句为祈使句时,从句用一般现在时。
Please don’t go to bed before you finish your
homework.
When,while 和as和区别。
用法
When 表示从句的动作和主句动作同时发生或先与
主句动作,可指一段时间或某一时间点
主句为一般过去时,从句也用过去时态。
While
表示从句的动作和主句动作同时发生,指一
段时间。
As 表示从句的动作和主句动作同时发
生,指一段时
间。意思是“一边……一边…..”as引导的动作是延
续性的动作,一般用于主
句和从句动作同时发生。
AS也可以强调“一先一后”。
例句
When
While As I was waiting for a bus, I met
Tom.
It was raining when he left home.
Be quite
while I am doing my homework.
I was watching
TV while he was sleeping.
She sang as she did
the cooking.
As we was going out,it began to r
ain.当我们出门
时,开始下雨了。As强调句中的2个动作紧接着先
后发生,而不强调开始
下雨的特定时间。
when, while, as.
它们都表示当…时候的意思。如果主句和从句的动作同时发生且都是进行时
态,只用while,
as. 其他情况下when, while, as通用。
1 When he came
in, I was listening to the radio.
2 As I
was wandering in the street, I met her.
3
While (as) I was watching TV, my mum was cooking
in the kitchen.
地点:
地点状语从句常用引导词where,特殊引导词
wherever,anywhere,everwhere
句型1. Where
+地点从句,(there) + 主句。
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注
意:此句型通常翻译成“哪里。。。。。哪里就。。。。。”,主句在从句后面时,there可用可不用;如果
主句在从句的前
面时,一般都不用there.
句型re wherever, +
地点从句, + 主句。
条件:
unless引导的从句谓语只能用肯定形式,相当于if……not。
在条件状语从句中,若主句是将来时,从句多用一般现在时。
If it doesn’t
rain tomorrow, we will go to the zoo.
如果明天不下雨,我们将去动物园。
原因:
原音状语从句是表示原因或理由的,最常用的连词是because, since , as ,
for 等。
because 引导的原音状语从句一般放在主句之后,because表示直接原因
,语气最强,最适合回答why引导的
疑问句。
since 引导的原因状语从句一般放在主
句之前,表示已知的,显然的理由,通常被翻译成“既然”,较正式,语气
比because弱。
Since you are free today, you’d better help me
with my English.
既然今天你有空,你最好帮我补习英语。
as 引导原
因状语从句表示附带说明双方已知的原因,语气比since弱,较正式,为止也比较灵活(常放主句之前)。
As it is raining, you’d better take a taxi.
既然现在下雨,你最好乘坐出租车。
for 引导的原因状语从句并不说明主句行为发生的直接原因,
只提供一些补充说明,for引导的原因状语从句只能
放在主句之后并且必须用都好将其与主句隔开。
I am full, for I ate 3 hamburgers just now.
我很饱,因为我刚才吃了3个汉堡包。
Because 不能与并列连词so; though
although不能与but同时在句中使用。
She was late for school
because she missed the bus.
=She missed the
bus, so she was late for school.
目的:
目的状语从句是表示行为动作的目的。引导词有that(以便),so that (以便),in
order that(为了,以便),for fear
that(生怕,以免),in
case(万一)等。
They set out early that they might
arrive in time. 他们早点动身,以便及时到达。
I got up early
so that I could catch the early bus. 我早起,以便赶上早班车。
(目的)
He shouted at the top of his voice in
order that he might be heard. 他尽力大声叫喊,以便别人能听见。
Take your umbrella in case it rains.
带上雨伞,以防下雨。
结果:
结果状语从句是表示行为动作的结果,通常主句是原因,从句是结果,由so…that,
such…that, so that等引导。
so
that可以引导目的状语从句,也可以引导结果状语从句。
He worried so that
he couldn’t sleep. 他急得睡不着。 (结果)由于紧张,导致睡不着。
so…that, such…that的区别: so是副词, such是形容词
so
+ 形容词 副词+ that so + 形容词+ aan + 名词+that
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He speaks so fast that no
one can catch him. 他说话太快,没人听得明白。
There is so
rapid an increase in population that a food
shortage is caused.
人口增长如此迅速,以致造成粮食短缺。
such+a(an)+adj.+单数可数名词+that
such+adj.+复数可数名词+that
such+adj.+不可数名词+that
They are such interesting novels that I want
to read them once again. 这些小说非常有趣,我想再读一遍。
He
is such a clever boy that everybody likes him.
他非常聪明,大家都非常喜欢他。
注意:如果such后边的名词前由many、much
、few、little等词所修饰的话,则不用 such而用so
Our country
has so much coal that she can export large
quantities. 我们国家的煤炭资源非常丰富,可以大
量出口。
记两个例子so
cold a day such a cold day
让步:
让步状语从句一般翻译为“尽管……,即使……”。
引导的连词主要有though,
although, as ,even if, even though, whether…or…,
no matter+疑问词,疑问词
+ever等。
though, although
意思大致相同,在一般情况下可以互相使用,在口语中,though较常实用。Although比thoug
h
正式,两者都可以与yet, still或never连用,但不能与but连用。
Though it was raining hard, he still went out.
或it was raining hard, but he still went out.
不能说Though it was raining hard, but he still
went out.
值得注意的是,although引导的让步状语从句谓语主句之前的
情况较多,though引导的让步状语从句可以位于
主句之前或主句之后。
even
if,even though表示“即使……,纵使……”之意,还有一种假设。
even if
从句有强烈的假定性,even though表示说话人肯定了从句的事实。
Even if he
is poor, she loves him. 即使他很穷,她还是爱他。
Even
though he is poor, she loves him. 尽管他很穷,她还是爱他。
No matter who=whoever, no matter what =
whatever, no matter when= whenever,
no matter
where=wherever
No matter who you are, you must
keep the law. = Whoever you are, you must keep the
law.
不管你是谁,你都要遵纪守法。
As 引导让步状语从句时,意思是“虽然,尽管
”,通常从句要倒装。倒装的方法是将从句的表语或状语放as之前,
而用though引导让步状语从
句时句子则不必倒装。
Heavily as it was raining outside,
they started out very early.
Though it was
raining heavily outside, they started out very
early.
尽管外面下着大雨,他们还是很早就出发了。
方式:
方式状语从句中as if, as though用法意义都相同,常用虚拟语气。
比较:
比较状语从句,than,as引导。
比较级+than 比
as+原级+as 和……一样……
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I am
taller than him. 我比他高。
He is as tall as his
father. 他和他父亲一样高。
选择题
1. Tom will
call me as soon as he _______home.
A. gets B.
has got C. got D. will get
2.I won’t be
able to understand what you say,_____you speak too
quickly.
A . if B. though C. because
3. I can still remember meeting her at a
party_____ it was a long time ago.
A. because
B. though C. until D. if
4. The teacher
speaks very loudly _____ all the students can hear
her.
A. so that B. because C. since D.
when
5. -----Emma failed her exams. I think
she should work harder.
------I agree.
________she does, she will get good grades.
A.
If B. Because C. Before D. Though
6.I
was listening to music ____my English teacher came
in.
A . until B. while C. since D. when
7. You should go over your test paper _____you
hand it in.
A. before B. though C. because
D. as soon as
8. Many students didn’t realize
the importance of study____ they left school.
A. when B. until C. as D. after
9. In
summer, food goes bad easily ______it is put in
the refrigerator.
A . until B. if C. unless
10. My sister got good grades this years
_______she studied hard.
A. or B. unless C.
because D. though
11. The FIFA World Cup is
______fantastic that a lot of people in the world
are crazy about it.
A. such B. so C.
very
12. You have to leave now _____you can
catch the early bus.
A. so that B. as soon as
C. because D. if
13. If you really hold on
to your dreams, they _____ true one day.
A.
came B. comes C. has come D. will come
14. Mr Black gave a lot money to charities
______he was not rich.
A. but B. so C.
though D. as if
15._______hard it was, he
would never give up.
A. Not matter what B.
Not matter how C. No matter what D.
No matter how
16. Yesterday evening I was
playing the piano _________the doorbell rang.
A. when B. before C. while D. after
17. “Mary, turn off the water______ you are
brushing your teeth.” “Sorry, I’ll do it at once.
A. until B. while C during
18.
----What was the party like ?-----Wonderful. It’s
years _____I enjoyed myself so much.
A. after
B. when C. before D. since
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19.---When can we discuss the picnic
problem ?
-----______when we can , we must
prepare for it right now.
A. Ever since B. No
matter C. Even though D. So that
20. We’ll
never give up our plan _____ happens.
A.
however B. whatever C. whenever D. wherever
’t talk loudly at the meeting. If you____, you
will have to leave.
A. are B. do C. did
D. can
22. If you______ to the Shanghai Expo
next month ,I will go with you.
A. go B. has
gone C. will go D. are going
23._______,mother will wait for him to have
dinner together.
A. However late is he B.
However he is late
C. However is he late
D. However late he is
用适当的连词填空
1.I met one of my old friends____________I was
walking along the street.
2.I saw
her_______she was getting off the bus.
3.__________you aren’t here on time tomorrow,
I’ll write to your parents.
you tell me
_________there is any water left?
5. We
usually clean the classroom ___________class is
over.
6. Wash your hands _________you eat
something.
7. I’ll tell her about the
important news __________I see her.
8. .The
girl has studied in the town _______his family
moved here.
9. We aren’t late for class
___________the new teacher is strict with us.
won’t go home _____________we finish our work.
11. Tom ran _________fast _________I couldn’t
catch up with him.
hurried off _________he
was able to catch the early bus.
13._______________someone throws in some
rubbish, it produces a piece of music.
14.
____________Bob has never been to China, he is
very interested in it.
15. We did ______ the
teacher told us. And at last we won the match.
16. The dictionary isn’t so expensive
__________that one.
用所给动词的适当形式填空。
1. I
don’t know if he_________(go) there. If he
___________(go) there, please tell me.
2. She
will tell you the good news as soon as
she_________(see) you.
3. She won’t go to the
cinema until her father__________(come) back.
4. We______________ have supper when they came
in.
5. She_____________(work) in the factory
since she___________(come) ther in 1990.
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