状语从句的省略
英语中的省略
英语中的省略为了避免重复，英语句子中某些部分可以省略。
常见的省略有以下几种：一、状语从句中的省略在时间、条件、让步及比较状语从句中，如主句和从句主语一致（或从句主语是it），且从句含be动词时，可将从句中的主语和be动词省略，从而构成“连词+ 分词/形容词/副词/介词”结构。
这里常见的连词有when/while/as/if/unless/once/although/though/than等。
When (water is )heated, water is turned into vapor. 水加热时变成气体。
He works very hard though（he is）rather weak. 他尽管体弱，但他十分努力地工作。
He came earlier than（he had been）expected. 他来得比预料的要早。
考例：①The research is so designed that once ____ nothing can be done to change it.A. beginsB. having begunC. beginningD. begun②If you go to Xi' an, you will find the palaces there more magnificent than commonly ___ .A. supposingB. supposedC. to supposeD. suppose分析：①D。
once后省略了the research is begun ②B。
比较状语从句中的完整形式是：than they are commonly supposed。
二、并列结构的省略1.并列结构一般由and, or, but等连接，他们可以连接单词、短语或分句，其中相同成分出现时可以被省略。
One of the sides of the board should be painted yellow, and ____.A.the other is whiteB. another whiteC. the other whiteD. another is white选C。
状语从句的省略(精讲精练)
状语从句的省略一：状语从句中的省略省略句的规则1.当从句的主语和主句的主语一致(或者从句的主语为it)．2.从句谓语中包含be动词．如：be doing,be done, be to do, be +adj在此种情况下可以省去从句的主语和be动词．保留be之后的部分，被保留部分常为现在分词、过去分词、不定式、形容词等。
1. Don’t speak until（you are）spoken to .2. I’ll buy a TV set if （it is ）necessary.3. While（I was ）walking walking alone in the street, I heard my name called.4.Tom raised his hand as if (he was ) to say something.二：常见的几种状语从句的省略1.when，while，as, until引导的时间状语从句的省略while(they are)visiting the city．they reeeived a warm welcomwhen(he was)asked why he was late，he kept silent．●注意After finishing his homework,he went home happily.Before being repaired, the TV set needs a careful examination.2.if，unless，once引导的条件状语从句的省略Onee(it is)begun．it must be done well．Unless（you are invited) to speak, you should remain silent at the conference.Correct mistakes, if any.3.though，although,even if,even though引导的让步状语从句的省略Though lacking money, his parents managed to send him to university.4.as though，as if，as引导的方式状语从句的省略He shook his head as if (he was）to say: “Don’t trust her”.She left the room hurriedly as if( she was) angry.He stared at the girl as if (he was) seeing her for the first time.You should finish the homework as (you are)required.5. than引导的比较状语从句的省略They sent us much more materials than required.1._____________________ (在北京的时候), I paid a visit to the Summer Palace.2. ____________________(当是个年轻人的时候), Abraham Lincoln was a storekeeper and a postmaster.3.He has no money_____(要是有的话), he will give us.4._____________(除非修理), the machine is of no use.5. _______________________(要是给更多的关注), The boy could have turned out better.6. A girl stood at the gate of the school as if _________ _____________________(跟老师讲话).7.这次展览比预料的有趣.8..她张开嘴好象要大哭起来.9.除非邀请,否则我不会去参加这次晚会.10.明天早点起来,要是不起来的话,你就赶不上第一班车了.11当我在做作业时,我听到有人喊救命.12.他篮球打得即使没你好,也起码一样好.1.When ________ , the museum will open to the public next year . (complete)2.The flowers his friend gave him will die unless _______every day. (water)3. The boss, not the workers should be responsible for the accident. They just carried out the order as__(tell4. When _______what they needed most, the kids said they wanted to feel important and loved. ( ask)5.One day while ________(work) at the cash register in the gift shop,I saw an elderly couple.6.When_______(finish),the knot looks identical from both the front and back.7.They promise to take action,_____needed, to maintain financial stability in the euro area as a whole.8.The building was still shaking while I_______(walk) along the road.9.Friendship is like money: easier made than _____ .(keep)10.When I was at your age my father told me that I should go and work wherever ____ most. (need)二since，before，after引导的状语从句有时可以变成介词短语或分词短语。
状语从句的省略
一般来说，省略现as, before, after, till, until, once等引导 的时间状语从句；由if,unless等引导 的条件状语从句；由though, although,even if, whatever等引导 的让步状语从句；由as,than 引导的 比较状语从句；由as, as if, as though引导的方式状语从句。
1.当状语从句的主语和主句的主语一致时，可以省 略从句中的主语和系动词be,这时从句从句中可 以出现以下结构：
连词+名词 连词+形容词 连词+介词短语 连词+现在分词 连词+过去分词 连词+不定式
• 请看下面的句子： 1. Though( he is) a young boy, he has a good command of computer. 2. Though (he is) tired, he is still working hard. 3. He looked everywhere as if (he was) in search of something. 4. He opened his mouth as if (he were) to speak. 5. While (my father was) watching TV, my father fell asleep. 6. The maths problem is more difficult than (it was) expected.
2. 当从句中的主语是it, 谓语动词中又含有系
动词be, 可以把it 和系动词be一起省略。 此时构成“连词（if, unless, when, whenever) +adj.”的结构 例如：
关于状语从句的省略问题
关于状语从句的省略问题在英语学习中我们常见到状语从句省略问题,但并不是所有的状语从句都可采取省略式，可采用省略式的有：1.when ,while, till, until, once 所引导的时间状语从句。
2.if, unless 所引导的条件状语从句。
3.although, though, even if , even though所引导的让步状语从句。
4.as if, as though所引导的方式状语从句。
5.than 所引导的比较状语从句。
状语从句使用省略的四种情况:一：当从句的主语和主句的主语一致（从句的谓语常含有系动词be）时，常把从句的主语和系动词一起省略，省略后从句呈现出：Conj+doing /done/adj/adv/to do/n/介短Eg：1.You must be careful when (you are )crossing the street.2.When (he was) asked why he was late, he said he had missed thetrain.3.When /while (he was ) in Paris, he picked up some French.4.Once ( it is ) seen, it will never be forgotten.5.Unless ( I am ) invited, I won’t attend his wedding.6.Though (he was )young/a boy, Tom knows a lot.7.Even if/though (he is )invited, he won’t go.8.He must be somewhere around if (he is )not here/in the office.9.They looked around the room as if /though (they were)looking forsomething.10.H e opened his mouth as if /though (he was) to say something.11.H e is much taller than (he is) expected.12.I can’t do it until (I am) told how to.13.W hen/while (he was) still a boy, he began to support himself.14.I f (water is )heated to a higher temperature, water will be turnedinto steam.15.T he research is so designed that once_____, nothing can be doneto change it.A beginsB having beganC beginningD begun(D)16. The 18—storied building ,when ______, will shut out the sun lighting up the rooms in my house.A completed B. to be completed C. completing D. have completed (A)17. The flowers will die unless ______every day .A wateredB wateringC waterD to water (A)二：当从句的主语和主句的逻辑主语一致时，也可把从句省略为Conj+doing /done/adj/adv/to do/n/介短，此种用法主要是用来描述或说明某种现象或情况，是“对事不对人”，而第一种情况是就具体的人或事来说明的。
状语从句中的省略
状语从句xx省略状语从句得省略原则主要就是：如果从句中得主语与主句中得主语一致，就可以经过一定得变动把状语从句中得主语与谓语得一部分或全部省略，从而使语言更加简洁、明了。
现就把各种状语从句得省略现象列举如下：一、时间状语从句xx省略When (she was) very young, she began to learn to play the piano、她很小时，就开始学习弹钢琴。
While (I was) at college, I began to know him, a strange but able student、我在上大学时就开始认识她，一个奇怪但有能力得学生。
When arriving, send me a telegram、(When you arrive, send me a telegram、)到达之后，来个电报。
Before leaving, turn off all the lights、(Before you leave, turn off all the lights、)走之前，请关闭所有得灯。
Don’t come in until (you are) asked to、不叫您请您不要进来。
Whenever (it is )possible, you should come and help、不管什么时候只要有可能就来帮忙。
You should let us know the result as soon as(it is) possible、您应尽快让我们知道结果。
注：as在引导时间状语从句时，没有这种省略现象。
我们不可说As walking, she found a nice shining thing on the ground、二、地点状语从句xx省略地点状语从句得省略常用下列结构：where(ver) possible, where(ver) necessary,Lay these books where possible you can find them easily、把这些书放在您可能容易找到得地方。
省略在状语从句中的运用
省略在状语从句中的运用
1.当主句的主语与状语从句的主语相同，且从句中的谓语是动词的情况下，可以省略状语从句中的主语和谓语。
例如：
- 原句：When I go to school, I always take the bus.
- 省略主语：When going to school, I always take the bus.
- 省略主语和谓语：Going to school, I always take the bus.
2.当主句的主语与状语从句的主语不同，且从句中的谓语是动词的情况下，可以省略状语从句中的主语，并保留谓语。
例如：
- 原句：When John goes to school, he always takes the bus.
- 省略主语：When going to school, he always takes the bus.
3. 当状语从句中的谓语是 be 动词时，可以省略主语和谓语，并保留 be 动词形式。
例如：
- 原句：When it is raining, I stay at home.
- 省略主语和谓语：When raining, I stay at home.
需要注意的是，省略状语从句的主语和谓语部分并不是必须的，根据语境和需要进行判断和运用。
此外，需要注意省略后的句子是否仍然能够保持语义上的完整和准确。
状语从句中省略
1）当状语从句的主语与主句的主语一致时，可以省略状语从句的主语和系动词be，这时从句中可出现如下结构：（1）连词（as, as if , once）+ 名词；（2）连词（ though, whether , when）+形容词；（3）连词（whether, as if ,while ）+介词短语；（4）连词（when , while , though ）+ 现在分词；（5）连词（when ,if ,even if ,unless ,once ,until, than , as ） + 过去分词；（6）连词（as if ,as though ） + 不定式。
如：a） Once （he was）a worker ,Pang Long now becomes a famous singer .庞龙曾经是个工人，现在变成一位著名的歌手。
b） Work hard when （you are） young ,or you'll regret.趁年轻要努力学习，要不然你会后悔的。
c） He looked everywhere as if （he was）in search of something .他到处看似乎在找什么东西。
d） While （he was） holding talks with President Hu Jintao ,US President George W. Bush thanked China for its important role in the Six-Party Talks.美国总统布什在与胡锦涛主席会谈时，感谢中国在六方会谈中起的重要作用。
e） The exhibition is more interesting than （it was） expected .这次展览比被预料的有趣的多。
f） Olympic gold medallist hurdler Liu Xiang opened his lips as if （he were） to speak。
状语从句的省略(精讲精练)
状语从句的省略欧阳家百（2021.03.07）一：状语从句中的省略省略句的规则1.当从句的主语和主句的主语一致(或者从句的主语为it)．2.从句谓语中包含be动词．如：be doing,be done, be to do, be +adj 在此种情况下可以省去从句的主语和be动词．保留be之后的部分，被保留部分常为现在分词、过去分词、不定式、形容词等。
1. Don’t speak until（you are）spoken to .2. I’ll buy a TV set if （it is ）necessary.3. While（ I was ）walking walking alone in the street, I heard my name called.4.Tom raised his hand as if (he was ) to say something.二：常见的几种状语从句的省略1.when，while，as, until引导的时间状语从句的省略while(they are)visiting the city．they reeeived a warm welcomwhen(he was)asked why he was late，he kept silent．●注意After finishing his homework,he went home happily.Before being repaired, the TV set needs a careful examination.2.if，unless，once引导的条件状语从句的省略Onee(it is)begun．it must be done well．Unless（you are invited) to speak, you should remain silent at theconference.Correct mistakes, ifany.3.though，although,even if,even though引导的让步状语从句的省略Though lacking money, his parents managed to send him touniversity.4.as though，as if，as引导的方式状语从句的省略He shook his head as if (he was）to say: “Don’t trust her”. She left the room hurriedly as if( she was) angry.He stared at the girl as if (he was) seeing her for the first time.You should finish the homework as (you are)required.5. than引导的比较状语从句的省略They sent us much more materials than required.1._____________________ (在北京的时候), I paid a visit to theSummer Palace.2. ____________________(当是个年轻人的时候), AbrahamLincoln was a storekeeper and a postmaster.3.He has no money_____(要是有的话), he will give us.4._____________(除非修理), the machine is of no use.5. _______________________(要是给更多的关注), The boy couldhave turned out better.6. A girl stood at the gate of the school as if ______________________________(跟老师讲话).7.这次展览比预料的有趣.8..她张开嘴好象要大哭起来.9.除非邀请,否则我不会去参加这次晚会.10.明天早点起来,要是不起来的话,你就赶不上第一班车了.11当我在做作业时,我听到有人喊救命.12.他篮球打得即使没你好,也起码一样好.1.When ________ , the museum will open to the public next year . (complete)2.The flowers his friend gave him will die unless _______every day. (water)3. The boss, not the workersshould be responsible for the accident. They just carried out the order as__(tell4. When _______what they needed most, the kids said they wanted to feel important and loved. (ask)5.One day while ________(work) at the cash register in the gift shop,I saw an elderly couple.6.When_______(finish),the knot looks identical from both the front and back.7.They promise to take action,_____needed, to maintain financial stability in the euro area as a whole.8.The building was still shaking while I_______(walk) along the road.9.Friendship is like money: easier made than _____ .(keep)10.When I was at your age my father told me that I should go and work wherever ____ most. (need)二since，before，after引导的状语从句有时可以变成介词短语或分词短语。
状语从句中的省略
（3）连词（once, as if, while等）+介词短语 He looked everywhere as if (he was) in search of something. 他四处张望，好像在找什么东西。 （4）连词（when, while, though等）+现在分词 While (I was) walking along the street, I heard my name called. 走在街上的时候，我听见有人叫我的名字。
2. He may not be at home then. If so (= If he is not at home), leave him a note.
那时他可能不在家。如果他不在家的话，给他留 个便条。
Hale Waihona Puke 巩固练习1. The research is so designed that once _____, nothing can be done to change it. A. begins B. having begun C. beginning D. begun 2. Though ________ money, his parents managed to send him to university. A. lacked B. lacking of C. lacking D. lacked in
2、当从句中的主语是it，谓语动词中又含有be动
词时，可以把it和be动词一起省略。此时构成 “连词（if, unless, when, whenever等）+形容
词”。 Unless (it is) necessary, you’d better not refer to the dictionary. 如果没有必要，你最好不要查字典。
状语从句的省略
状语从句省略句的结构： 连词+分词（-ing、-ed)/形容词
特点： 1.从句主语与主句主语相同 2.从句中谓语动词含有be动词
一般说来省略现象多出现在下列五种状语从句 中：
1.由when ,while ,as ,before, after, till, until, once等引导的时间状语从句； 2.由whether ,if ,unless 等引导的条件状语从句； 3.由 though ,although ,even if ,whatever等引 导的让步状语从句；
2. When asked to answer questions, you should stand up.
(When 后省略了_y_o_u__a_r_e_ )
3. He will help us do it, if necessary.
(if 后省略了 _it__is__ )
当从句的主语是 it,谓语动词中又含有系动词be 时 , 可以把it和系动词be一起省略. if necessary/possible/if true/so/not
[灵活运用] When 1_tr_a_v_e_l_in_g__(travel)in Shanghai, I happened to meet my friend. We chatted for a little while. Even though 2 _in_v_i_t_e_d (invite), I didn’t have a drink with him because I was in such a hurry.
1. While walking the dog, you were careless and it got loose and was hit by a car. While you were walking the dog, you were careless and it got loose and was hit by a car.
（完整版）状语从句的省略（精讲精练）
（完整版）状语从句的省略（精讲精练）状语从句的省略一：状语从句中的省略省略句的规则1.当从句的主语和主句的主语一致(或者从句的主语为it)．2.从句谓语中包含be动词．如：be doing,be done, be to do, be +adj在此种情况下可以省去从句的主语和be动词．保留be之后的部分，被保留部分常为现在分词、过去分词、不定式、形容词等。
1. Don’t speak until（you are）spoken to .2. I’ll buy a TV set if （it is ）necessary.3. While（I was ）walking walking alone in the street, I heard my name called.4.Tom raised his hand as if (he was ) to say something.二：常见的几种状语从句的省略1.when，while，as, until引导的时间状语从句的省略while(they are)visiting the city．they reeeived a warm welcomwhen(he was)asked why he was late，he kept silent．●注意After finishing his homework,he went home happily.Before being repaired, the TV set needs a careful examination.2.if，unless，once引导的条件状语从句的省略Onee(it is)begun．it must be done well．Unless（you are invited) to speak, you should remain silent at the conference.Correct mistakes, if any.3.though，although,even if,even though引导的让步状语从句的省略Though lacking money, his parents managed to send him touniversity.4.as though，as if，as引导的方式状语从句的省略He shook his head as if (he was）to say: “Don’t trust her”.She left the room hurriedly as if( she was) angry.He stared at the girl as if (he was) seeing her for the first time.You should finish the homework as (you are)required.5. than引导的比较状语从句的省略They sent us much more materials than required.1._____________________ (在北京的时候), I paid a visit to the Summer Palace.2. ____________________(当是个年轻人的时候), Abraham Lincoln was a storekeeper and a postmaster.3.He has no money_____(要是有的话), he will give us.4._____________(除非修理), the machine is of no use.5. _______________________(要是给更多的关注), The boy could have turned out better.6. A girl stood at the gate of the school as if _________ _____________________(跟老师讲话).7.这次展览比预料的有趣.8..她张开嘴好象要大哭起来.9.除非邀请,否则我不会去参加这次晚会.10.明天早点起来,要是不起来的话,你就赶不上第一班车了.11当我在做作业时,我听到有人喊救命.12.他篮球打得即使没你好,也起码一样好.1.When ________ , the museum will open to the public next year . (complete)2.The flowers his friend gave him will die unless _______every day. (water)3. The boss, not the workers should be responsible for the accident. They just carried out the order as__(tell4. When _______what they needed most, the kids said they wanted to feel important and loved. ( ask)5.One day while ________(work) at the cash register in the gift shop,I saw an elderly couple.6.When_______(finish),the knot looks identical from both the front and back.7.They promise to take action,_____needed, to maintain financial stability in the euro area as a whole.8.The building was still shaking while I_______(walk) along the road.9.Friendship is like money: easier made than _____ .(keep)10.When I was at your age my father told me that I should go and work wherever ____ most. (need)二since，before，after引导的状语从句有时可以变成介词短语或分词短语。
状语从句主谓成分的省略
状语从句主谓成分的省略状语从句主谓成分的省略是英语语言在使用过程中出现的一种较普遍的语法现象，它能使语言言简意赅。
Though understanding no Chinese, the American girl was able to communicate with the other students in her class.When asking the teacher, he was very polite.Until finished, the problem was a continuous worry to me.He’ll go to the seaside for his holiday if (it is) possible.一、状语从句主谓成分的省略，须遵循下面原则：（一）当从句的主语与主句的主语一致时，从句可以省略主语，从句的谓语动词采用其V-ing 结构。
例如：Although working very hard, he failed in the final exam. (Although he worked very hard,…)After t aking the medicine, she felt much better. (After she took the medicine,…)If going there by air, we’ll have to pay twice the fare. (If we go there by air,…)（二）当从句的主语和主句的主语一致时，若从句的谓语动词是系动词be或包含be的某种形式，此时从句的主语和be动词通常可以一同省略。
常见于以下几种形式:1、连词+形容词Whenever (she is) free, she often goes shopping.她有空就去逛商店。
Work hard when (you are) young, or you'll regret.少壮不努力,老大徒伤悲。
状语从句省略的十大类型
状语从句省略的十大类型请看2004年的一道高考试题It shames me to say it, but I told a lie when _____ at the meeting by my boss.A. questioningB. having questionedC. questionedD. to be questioned 在行文结构上，从属连词as, though, when, while, unless, once 等引导的状语从句常常出现省略。
这些从句中的省略往往不尽相同，很难找到一个统一的规律，同学们应着重注意以下十种情况。
一、as引导的从句的省略【现象】①省略：主语和谓语；主语和动词be。
②保留：状语、分词。
例She plays with it as a cat with a mouse. 她玩得就象猫玩老鼠一样。
【经典试题】There are now three times as many schools in this city _____ ten years ago. A. as it is B. with C. more than D. as二、as if引导的方式状语从句的省略【现象】①省略：主语和系动词；主语和谓语。
②保留：表语、分词或者状语。
例She opened her mouth as if to say something. 她张开嘴好象想说什么。
【经典试题】The man we followed suddenly stopped and looked as if _____ whether he was going in the right direction.A. to seeB. seeingC. seenD. saw三、though/although引导的让步从句的省略【现象】①省略：主语和动词be。
②保留:表语或者分词。
例The hours we were together were long, though seeming short. 我们在一起的时间很长，尽管看上去很短。
状语从句的省略
如：The exhibition is more interesting than (it was) expected .这次展览比被预料的有趣的多
⑥连词(as if ,as though ) +不定式
（1）当状语从句的主语与主句的主语一致时，可以省略状语从句的主语和系动词be，这时从句中可出现如下结构：
①连词（as, as if , once）+名词
如：Once (he was)a worker ,Pang Long now becomes a famous singer .庞龙曾经是个工人，现在变成一位著名的歌手。
Come along with me if (it is) possible.如果有可能和我一起去吧.。
If (it is) true, this will casue us a lot of trouble.如果是真的，这会给我们带来很多麻烦。
There are few people nowadays, if (there are) any, who remember him.很少有人能记起他。
You should stay where you are，unless (you are) asked to leave．你应该呆在你现在的地方不动，除非叫你离开。
三、方式状语从句中的省略
as if / as though后加名词/形容词/副词/介词短语/现在分词/过去分词/不定式。
She talked to the stranger as if (she were) absent-minded．她和陌生人谈话似乎心不在焉。
状语从句的省略
状语从句的省略状语从句的省略有以下几种情况：（1）在状语从句中如果主语与主句的主语一致，同时从句中又含有动词be则通常可省去从句中的主语和动词be，留下其余部分。
1.She stood at the gate as if （she was ）waiting for someone. 她站在门口好像在等人。
2．The woman teacher hurriedly left the classroom as though（she was ）angry.这位女教师匆匆忙忙离开教室，好像生气了。
3. The man , while （he is ）over eighty, can walk faster than I .这人虽年过八十，却比我走得快。
4. Don’t speak until （you are ）spoken to. 有人对你说话时你才说。
5 .Be careful while （you are）crossing the road. 过马路时要当心。
6 .When (it is) heated, ice can turn into water. 冰经过加热能变成水。
（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。
1. Though (it was) cold，he still wore a shirt．天气虽然冷，他还穿一件衬衫。
2. Come tomorrow if (it is) possible．可能的话就明天来吧。
3. If (it is) so，you must get back and get it．如果这样的话，你必须回去把它拿来。
’11 buy a TV set if (it is) necessary．如有必要，我就买一台电视机。
5. Everything went on better than (it had been) expected．一切进展得比预料的顺利。
状语从句的省略与替代技巧
状语从句的省略与替代技巧状语从句作为复合句中的一个重要成分，用以修饰主句中的动词、形容词、副词等，起到补充说明、限定条件、表示目的或原因等作用。
在书写状语从句时，我们可以灵活运用省略与替代技巧，以增加文章的流程和准确性。
一、省略技巧在某些情况下，可以省略状语从句中的主语、谓语或其他成分，以简化句子结构，使文章更加简洁明了。
1. 省略主语在表达状语从句时，如果主句与从句的主语一致，可以省略从句中的主语。
例1：原句：当我看到这本书的时候，我决定购买。
省略后：当看到这本书的时候，我决定购买。
2. 省略谓语如果主句与从句的谓语相同，可以省略从句中的谓语。
例2：原句：他昨天告诉我，他要去北京旅行。
省略后：他昨天告诉我要去北京旅行。
3. 省略其他成分在状语从句中，有时也可以省略其他成分，如省略关系副词“where”、“why”等。
例3：原句：我喜欢在家里读书，因为那里安静。
省略后：我喜欢在家里读书，因为安静。
二、替代技巧除了省略状语从句中的某些成分，我们还可以通过替代词语的方式来改写状语从句，以增加文章的多样性和层次感。
1. 用介词短语替代地点状语从句例4：原句：他工作的地方很远，所以经常迟到。
替代后：由于他工作地方很远，所以经常迟到。
2. 用形容词或副词替代方式状语从句例5：原句：他用努力的方式学习，以便取得好成绩。
替代后：他努力地学习，以便取得好成绩。
3. 用短语或不定式替代目的状语从句例6：原句：她努力学习，为了考上理想的大学。
替代后：她努力学习，以实现考上理想大学的目标。
通过上述的省略与替代技巧，我们能够让句子更加简洁、流畅，并突出主要信息。
当然，在运用这些技巧时，我们需要根据具体语境来进行判断，确保句子表达准确清晰。
总结起来，状语从句在文章中具有重要的修饰作用，通过灵活运用省略与替代技巧，我们可以增加文章的流程，使句子更加简洁明了。
希望本文介绍的状语从句的省略与替代技巧能够为您的写作提供帮助。
状语从句的三类省略形式
状语从句的三类省略形式一、省略主语和动词be当状语从句的主语与主句主语一致，且从句谓语包括有动词be 时，有时可省略从句中的主语和动词be。
如：Phone me if (it is) necessary. 必要时给我打电话。
Start when (you are) ready. 准备好了就开始。
He danced about as if (he was) in search of something.他向四周望望，仿佛在找什么似的。
Though (he was) intelligent, he was very poorly educat ed. 虽然他很聪明，受的教育却很差。
注：有时省略的可能是 there is, it is 等。
如：There is few if (there is) any. 如果有也很少。
Fill in the application as (it is) instructed. 按照要求填好表格。
As (it is) scheduled they met on January 20. 他们按照计划在1月20日碰头。
二、结果状语从句省略thatso that, so…that, such…that 引导结果状语从句时，有时可省略that。
如：I am so busy (that) I have no time to write a letter. 我是那样忙，写信的时间都没有。
He was so drunk (that) he could barely stand. 他喝醉了，勉强能站立。
The girls are so close (that) they’re like sisters. 女孩们亲如姐妹。
There was such a lot of rain (that) we couldn't go out. 雨那么大，我们没法出去。
She spoke with such sincerity (that) he felt greatly touc hed. 她说得那样诚恳，他深受感动。
状语从句的省略课件
A. when taking B. when taken
C. when to take D.when to be taken
5. Unless ________ to speak, you should remain silent at the conference. (NMET 2003上海春)
点击略?
1. Don’t speak until you are spoken to . spoken to
2. I’ll buy a TV set if it is necessary. necessary
3.She stood at the gate as if she was waiting for
A. invited B. inviting C. being invited D. having invited
6. When ________ , the museum will be open to the public next year. (NMET 2002上 海春)
A. completed B. completing C. being completed D. to be completed
While walking alone in the street, my name was called.
7. While Iwwaalksinwgaalkloinnge wthaelkstinregeat l,one in the street, I heard my name called.
:什么时候可以省略?怎么省略? 在含有状语从句的复合句中若从句的主句是it或与 主句的主语相同，且在谓语中含有be时，常省略从 句的主语和be。
yellow, and________.
状语从句中的省略
※状语从句中的省略在表示条件、方式、时间、让步的状语从句中，如其主语与主句的主语一致或是代词it，且谓语动词中又有be时，则从句中的主语和be都可以省略。
1．比较状语从句中的省略在以than或as引导的比较状语从句中，如果主语与主句的主语一致，则从句主语与谓语（可以是be动词，也可以是行为动词）均可省略；如果从句的主语和主句的主语不一致，则省略其谓语及与主句相同的部分。
如：Production is going up much faster than (it was) before.生产比以前增加得快多了。
Jane can speak Spanish more fluently than Peter (can speak).珍妮讲西班牙语比彼得讲得流利。
Winter in Guangzhou is not so cold as in Beijing.广州的冬天不像北京的冬天那么冷。
I shall come as early as possible.我会尽快来。
在口语中，than和as及其后的部分可以省略。
I have never seen a more beautiful garden (than this).我没见过更漂亮的花园。
I would rather go with you (than stay here).我宁愿跟你一起去。
Are they as keen about it (as we are)?他们对这件事和我们一样这么迫切吗？2．条件状语从句中的省略在条件状语从句中，与主句中相同的部分可以省略。
例如：I am happy if you are (happy).如果你高兴，我也高兴。
If (it is) necessary, I will ask you for help.如果有必要，我将请你帮忙。
[注] 在条件状语从句中，经常使用一些省略了的固定搭配，如：if any, if necessary, if possible, if so, if not, 或if + 介词短语，if/unless/once + 过去分词等。
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2012届高考英语语法专题复习系统资料状语从句的省略
一般说来省略现象多出现在下列五种状语从句中：由when ,while ,as ,before, after , till, until, once等引导的时间状语从句；由whether ,if , unless 等引导的条件状语从句；由though , although ,even if ,whatever等引导的让步状语从句；由as ,than 等引导的比较状语从句；由as, as if , as though 等引导的方式状语从句。
上述状语从句在省略时，并非任何成分都可以省略而是遵循下面原则：
（1）当状语从句的主语与主句的主语一致时且从句中含有BE动词的某种形式时，可以省略状语从句的主语和系动词be ，这时从句中可出现如下结构：
①连词（as, as if , once）+ 名词
如：Once (he was)a worker ,Pang Long now becomes a famous singer .庞龙曾经是个工人，现在变成一位著名的歌手。
②连词（though, whether , when）+形容词
如：Work hard when (you are) young ,or you'll regret.趁年轻要努力学习，要不然你会后悔的。
③连词(whether, as if ,while )+介词短语
如：He looked everywhere as if (he was)in search of something .他到处看似乎在找什么东西。
④连词(when , while , though )+ 现在分词
如：While (he was) holding talks with President Hu Jintao , US President George W. Bush thanked China for its important role in the Six-Party Talks.美国总统布什在与胡锦涛主席会谈时，感谢中国在六方会谈中起的重要作用。
⑤连词(when ,if ,even if ,unless ,once ,until, than , as ) + 过去分词
如：The exhibition is more interesting than (it was) expected .这次展览比被预料的有趣的多
⑥连词(as if ,as though ) + 不定式
如：Olympic gold medallist hurdler Liu Xiang opened his lips as if (he were) to speak .奥林匹克金牌获得者跨栏运动员刘翔张开嘴好象要说什么。
（2）当从句的主语与主句的主语不一致，但从句主语是it，从句中又含有系动词be 的某种形式时，可以把it和系动词be一起省略。
如：Unless (it is) necessary ,you'd better not refer to the dictionary.如果没有必要，你最好不要查字典。
各种状语从句的省略现象列举如下：
一、时间状语从句中的省略
When (she was) very young, she began to learn to play the piano. 她很小时，就开始学习弹钢琴。
While (I was) at college, I began to know him, a strange but able student. 我在上大学时就开始认识他，一个奇怪但有能力的学生。
When arriving, send me a telegram. (When you arrive, send me a telegram.) 到达之后，来个电报。
Before leaving, turn off all the lights. (Before you leave, turn off all the lights.) 走之前，请关闭所有的灯。
Don’t come in until (you are) asked to. 不叫你请你不要进来。
Whenever (it is )possible, you should come and help. 不管什么时候只要有可能就来帮忙。
You should let us know the result as soon as(it is) possible. 你应尽快让我们知道结果。
注：as在引导时间状语从句时，没有这种省略现象。
我们不可说As walking, she found
a nice shining thing on the ground.
二、地点状语从句中的省略
地点状语从句的省略常用下列结构：where(ver) possible, where(ver) necessary,
Lay these books where possible you can find them easily. 把这些书放在你可能容易找到的地方。
Put in articles wherever necessary in the following passages. 在下列文章中需要的地方填入冠词。
三、条件状语从句中的省略
常用的句型是：if necessary, if possible, if true, if anyone等。
如：
Send the goods now if (they are) ready. 货物如果准备好了，请送过来。
He will come if (he is) asked. 如果叫他来，他就来。
If (it is) necessary, ring me at home. 如果有可能，朝我家里打电话。
Come along with me if (it is) possible. 如果有可能和我一起去吧.。
If (it is) true, this will casue us a lot of trouble. 如果是真的，这会给我们带来很多麻烦。
There are few people nowadays, if (there are) any, who remember him. 很少有人能记起他。
You should stay where you are, unless (you are) asked to leave. 你应呆在你现在的地方不动，除非叫你动。
四、让步状语从句中的省略
He is a good man, though sometimes (he is) rather dull. 他真是个好人，尽管有时有点无聊。
Even if (I am ) invited to, I won’t go to such a bad lecture. 即使邀我去，我都不想听如此坏的报告。
五、比较状语从句中的省略
She can play the piano just as wonderfully as you (do). 她钢琴弹的我你弹的一样好。
She has finished the work earlier than (it has been ) expected.。