专升本英语状语从句语法考点总结
2022年专升本考试已经结束，正在备考2023年专升本考试的考生，为了帮助考生能取得一个好成绩，下面库课李老师给考生整理了专升本英语状语从句语法考点总结，考生在考前可先来记忆一下，争取考出高分。
专升本英语状语从句语法考点总结
时间状语从句
He had no sooner finished his speech than he withdrew.
Jobn puts up his hand every time the teacher asks a question.
Let's talk all this over again before we make a final decision.
Take however much you want whenever you want to.
I decideld to go to the library as soon as I finished what I was doing.
I was just about to leave the house when the telephone rang.
Hardly had he finished his speech when the audience started cheering.
Since he entered the university,his English has been much improved.
I watched him until he disappeared from sight in the distance.
Once you understand this rule, you'll have no further difficulty.
地点状语从句
You can go where you want to go . 你可以去你想去的地方
原因状语从句
Seeing that he will not accept the offer, I have to find somebody else.
Now that nobody has anything more to say, let's round off the dicussion.
He declined the invitation partly because he was busy and partly because he lacked money.
The higher income tax is harmful in that it may discourage people from trying to earn more.
方式状语从句
Literature must consist of words, just as music must consist of sounds.
He is still too young to do the job the way we want it done.
He has loved me as though I were his son.
条件状语从句
You can fly to London this evening provided you don't mind changing planes in Paris.
You can stay here as long as you keep quiet.
You should leave the cage immediately unless you wish to be killed by the bear.
They agree to rent the house on condition that the roof be repaired.
比较状语从句
The higher you stand , the farther you can see.
The new campus is twice as big as the old one.
The new model costs twice as much as last year's.
Private cars have made the traffic problems worse than ever before.
The more civilized man has become, the less he is limited by the disadvantage of his environment.
让步状语从句
While I admit that the problems are difficult, I don't agree that they can't be solved.
Blind as he was, the old man had a sharp car for even the slightest sound.
Young as he is, he is equal to the task.
Scarce as they are ,water resources have been severly wasted or polluted.
Great as the difficulties are,we must do our best to succeed.
However long you argue, you will never convince him.
Whatever you say, I am sure that the young man is innocent.
No matter how busy he is,he often helps me with my study.
Although more than one hundred elements are known,only twenty-five of them are common and impotant.
All matter, whether it is a gas, a liquid or a solid, expands as the temperature rises.
We must begin testing this instrument, no matter how difficult it is.
He'll never succeed in passing the CET-6, however hard he tries.
I was persuaded to do the job, even though I didn't want to.
目的状语从句
We left the manager a note in case he wanted to know where we were.
We must improve the farming method in order that we may get high yields.
You must practise daily so that you will win the race.
They seemed afraid to say what was in their mind, for fear that it might start trouble.
结果状语从句
He grew more and more absorbed in his work, to such an extent he almost forget his meals.
He ran so fast that no one could catch him.
另外
As far as I know, she doesn't have any sisters.
状语从句时态
(主将从现)(时间/条件/让步)
If it rains，I will stay at home.
完成时since，have done
将来完成时by the time he does,...he will have done
过去完成时by the time we did..., he had done
虚拟(if条件句)
If I had done... I would have done...
倒装(时间/条件/让步)
only if用倒装，if only用虚拟
only if...can you...
If only I were you,/ had worked / could do
Young as he is...
the more， the more...越...越...
(时间/条件)状语从句中的省略问题
1、在状语从句中如果主语与主句的主语一致，同时从句中又含有系动词be，则通常可省去从句的主语和系动词be,留下其余部分。
2、若状语从句中主语是it, 动词是系动词be, 则通常可省去主语it及系动词be,留下其余部分。
when / If working hard, you will pass the exam.
Once begun, the project won't stop.
Unless invited, I will not attend the meeting.
1、when的用法
(1)when 既可引导一个持续性动作，也可引导一个短暂性动作，可用于表示主句和从句动作同时发生或从句动作先于主句动作，有时还可表示从句动作后于主句，意为“当...时候”。
(2)be about to do...when...，be doing...when...，had done...when...，be on one’s way...when...，be on the point of doing...when...等结构中，作“那时突然”讲。
(3)when “既然、鉴于;尽管，虽然(位于主句之后)
2、while的用法
(1)表示“当...时候”，引导的动作必须是延续性的。
(2)用作并列连词，表示相对关系“然而”。
(3)引导让步状语从句，相当于although,意为“虽然”，位于主句前。
(4)引导条件状语从句，相当于as/so long as，意为“只要”。
3、as 的用法
(1)表示“当...时候”，强调同时发生，不指先后。
(2)说明两种正在发展或变化的情况，表示“随着”，表示时间的推移。
(3)表示“一边...一边...”。
(4)强调两个动作紧接着发生。
(5)表示“虽然，尽管”。
(6)其他含义“正如，正像”，“作为”，“由于，因为”。
4、before的用法
(1)一般意为“在...之前”“...才”，“...就”“还没有...”“免得”“不知不觉”“宁可，宁愿”，“否则，要不然”。
(2)It + will be/was + 时间段+before+一般现在时/一般过去时。在肯定句中，意为“多长时间之后才”;在否定句中，意为“用不了多长时间就”。
5、until和till
(1)与肯定句连用，必须是延续性动词。
(2)与否定句连用，必须是非延续性动词，表示“直到...才，在...之前不...”。
注意：not until可用于强调句和倒装句
强调句：It is/was not until…that…倒装句：not until 放句首时，主句要部分倒装。
6、since的用法
(1)since后是非延续性动词，时间起点从该动作发生算起，意为“做某事多久了”;since后是延续性动词，时间起点从该动作结束算起，意为“不做某事已有多长时间”。
(2)It is/has been +时间段+since+一般过去时
7、表示“一......就......”的句型
(1)as soon as, once,immediately,directly,instantly,the moment,the minute等引导的从句都表示从句的动作一发生，主句的动作随即发生，常译作“一...就...”，这类从句中，经常用一般现在时态代替将来时态。
(2)on doing sth.或“on one’s+名词”作时间状语。
注意：
(1)so...that与such...that的区别
So+形容词such+a/an+形容词+单数名词
So+形容词+a/an+单数名词such+形容词+复数名词
So+副词such+形容词+不可数名词
So many/few+复数名词
So much/little+不可数名词
(2)so that引导的目的状语从句与so that 引导的结果状语从句
目的状语从句一般使用情态动词，结果状语从句一般不使用情态动词;
结果状语从句常常用逗号与主句分开。
(3)so...that与so...as;such...that与such...as
So...that/such...that为结果状语从句;so...as/such...as为定语从句。
