状语从句的省略
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
Every evening after dinner,if not ---from work,I will spend some time walking my dog. A.being tired B.tiring C. tired D.to be tired -Who should be responsible for the accident? -The boss,not the workers.They just carried out the order---A.as told B.as are told C.as telling D.as they told
C
A
Once seen,it can never be forgotten.一旦看见，永远也不 会忘记。
状语从句的省略问题
2.若状语从句中的主语是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。
I’ll buy a computer if (it is) necessary.如有必要，我就买一 台电视机。 No matter how difficult (it may be),we are determined to carry the research to the end.不管有多困难，我们决心把 研究进行到底。
Exercises
D 1.Don’t leave until____ to do so. A.be ordered B.ordering C.order D.ordered 2.A beam of light will not bend round c unless ___to do so with the help of a reflecting device. A.having been made B.being made C.made D.you made
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。
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。
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。
状语从句中的省略
状语从句中得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、时间状语从句中得省略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、地点状语从句中得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。
英语语法：状语从句中的省略问题
【导语】⽤作状语的从句叫状语从句。
状语从句可置于句⾸、句末或句中，⼀般来说，状语从句都⽐较完整。
但是，在⼀些状语从句中存在的省略问题，可以归纳为⼏点。
以下内容由整理发布，欢迎阅读参考！更多相关讯息请关注！1. 在when,whenever,while,until,as soon as等引导的时间状语从句中,可以省略与主句中主语相同的主语和系动词或助动词。
When (he was) a child he ran wild. 他⼩的时候很不守规矩。
They were scolded whenever (they were) late for school.每次上学迟到,他们都要挨骂。
While (he was) in prison,he wrote his first novel.他在狱中写出了第⼀部⼩说。
As soon as (I am) on board I always feel sick. 我⼀上船就感到恶⼼。
2. 在if,unless,once等引导的条件状语从句中。
If (it is) not well organized,the meeting will be a failure.如果组织不好,会议就会失败。
Substances have no tendency to expand unless(they are) heated.除⾮受热,物质不会有膨胀的倾向。
Once (she was) inside her bedroom,she began to cry. ⼀⾛进卧室,她就开始哭。
3. 在where,wherever引导的地点状语从句中,可以省略主语和系动词或助动词。
Through long power lines,electricity goes where (it is) needed.电通过输电线输送到需要它的地⽅去。
4. 在than,as引导的⽐较状语从句中。
Ｓhe works better than Ｉ (works). 她⼯作做得⽐我好。
状语从句的省略
状语从句中的省略在表示时间、地点、条件、方式（比较）或让步等的状语从句中，如果谓语动词含有动词be，主语又和主句的主语一致，或其主语是it，那么从句中的主语和谓语的一部分（尤其是be动词）往往可以省略。
（1）从属连词+名词例句：Thoug h (he was) a young man, he has written three famous novels.虽然年轻，但他已经写了三本著名的小说了。
例句：Whe n (he was) still was a bo y of six, Bob was sent away from home.鲍勃才六岁时就被送出家门。
例句：A s (she was) a child, she began to learn to play the piano.还是个孩子时，她就开始学习谈钢琴。
（2）从属连词+形容词例句：Whe n (they are) ripe, the grapes will be delicious.当葡萄成熟之后就会很好吃。
例句：Thoug h (she was) young, she had to live on himself.虽然年纪轻轻，但她不得不养活自己。
例句：He talked to the stranger as i f (he were) absent-minded. 他和陌生人谈话似乎很不在意。
（3）从属连词+副词例句：Unles s (you are) here, you can't find this kind of butterfly. 除非在这里，其他地方找不到这种蝴蝶。
例句：Whil e (we were) there, we joined in voluntary labour on a project.我们一到那儿，就自愿参加了这项工程。
（4）从属连词+介词短语例句：Whe n (you are) in doubt, please consult a dictionary.有疑问的时候，就请查字典。
状语从句的省略
1．Don’t ______ in the exam while _______ an exam.A．calm；take B．cheat；takingC．list；taking D．ignore；take【答案】B【解析】考查动词辨析和状语从句的省略句。
句意：考试的时候，不要作弊。
A. calm使平静；B. cheat作弊；C. list列清单；D. ignore忽略。
分析句子可知，本句为状语从句的省略句，原句应该是while you are taking an exam，省略了you are，当从句的主语和主句的主语一致, 从句谓语中包含be动词, 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，由“Don’t， in the exam”可知，考试不要作弊，祈使句用动词原形。
故选B。
2．If _____more time, we can do it better.A．give B．giving C．given D．gave【答案】C【解析】考查if条件状语从句的省略。
句意：如果被给予更多时间，我们能做得更好。
原句是if we are given more time，当从句的主语和主句的主语一致，从句谓语中包含be动词, 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,故选C。
3．When _____ from the top of the hill, the whole city looks more beautiful.A．seeing B．seen C．is seen D．is seeing 【答案】B【解析】考查状语从句的省略句。
句意：从山顶上看，整个城市看起来更美。
分析句子可知，本句为状语从句的省略句，还原后为：When the whole city is seen from the top of the hill,因从句的主语与主句的主语相同，且从句的动词为be动词，所以主语和谓语可以省略。
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(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当从句的主语和主句的主语一致(或者从句的主语为it)．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when，while，as, until引导的时间状语从句的省略when(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.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.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.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._____________________ (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.他篮球打得即使没你好,也起码一样好.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。
状语从句的省略
状语从句的省略状语从句的省略是指使语言的精炼将状语从句进行简化。
需满足两个条件: 1.主句和从句的主语一致，或从句主语为it；2. 从句主要动词是be的某种形式。
例如：When ( the museum is ) completed , the museum will be open to the public next year .He’ll go to the seaside for his holiday if (it is ) possible.另外，比较状语从句经常省略。
例如：The higher the temperature (is), the greater the pressure (is ).状语从句的"简化"现象常存在于以下五种状语从句中:①由if, unless等引导的条件状语从句;②由although, though, even if / though等引导的让步状语从句;③由when, while, as, before, after, until / till等引导的时间状语从句;④由as, as if等引导的方式状语从句;⑤由as, than等引导的比较状语从句。
下面针对这五种情形作一归纳。
(1)当状语从句的主语是it,且谓语动词是be时,it和be要完全简化掉。
例如:If (it is) possible, he will help you out of the difficulty.如果可能的话,他会帮你摆脱困境。
You must attend the meeting unless (it is) inconvenient to you.除非情况对你来说不方便,否则你必须出席这次会议。
(2)当状语从句的主语和主句的主语一致时,从句可以将主语和be动词简化掉。
常用于以下几种情形:a.连词+形容词As (he was) young, he learned how to ride a bike.他小时候就学会了骑自行车。
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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。
4.I’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。
6. No matter how difficult(it may be)，we are determined to carry the research to the end．不管有多困难，我们决心把研究进行到底。
（3）状语从句中的部分内容若与主句的部分内容相同，可将从句中的此部分内容省去。
1. He has no money．If (he has) any，he will give us．他没有钱，如果有，他会给我们的。
2. Some flowers shut up at night as if (they did this in order) to sleep．有些花夜间收拢，好像为了睡眠一样。
1. Your teachers will take your recent illness into consideration when they mark your exams.你的几位老师评定你的考试成绩时，会考虑到你最近生病的情况。
2. Taking everything into consideration ,the result was better than I expected. 从各方面考虑，结果比我预料的好。
状语从句省略具体分析。
一．时间状语从句的省略。
这类从句主要由when，while，as soon as，once，until等引导。
例如：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。
When arriving, send me a telegram. (When you arrive, send me a telegram.)到达之后，来个电报。
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。
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。
Whenever (it is ) possible, you should come and help. 不管什么时候只要有可能就来帮忙。
Don’t come in until (you are) asked to. 不叫你请你不要进来。
You should let us know the result as soon as (it is) possible. 你应尽快让我们知道结果。
二．地点状语从句中的省略。
主要由where, wherever引导。
例如：1.He is always ready to help others wherever (he is) needed.2.You can add some words to your composition where (it is) necessary.三．条件状语从句的省略。
主要由if，unless引导。
例如：1.She won't go to his birthday party unless (she is ) invited.2.The news is quite important to us, if (it is) true.但若if引导的是表示假设的虚拟条件句，虽具备条件，可不能用于这类省略。
这时如果if从句的谓语动词中含有were，had，should，则可以用倒装省略，即将were，had或should提到句首，而将连词if省略。
例如：Were it not for you, I would also go there with them.Had you come here earlier, you would have met him.Should it be fine tomorrow, we would go for an outing.另外，当once作"一旦，一经"解，连接时间或条件状语从句，其主语与主句的主语相同或其主语为it + be时，常省略从句中的主语或it + be。
例如：Once (it was) published, his work became famous for the absence of rhyme at the end of each line.Once (you) lose confidence, you can never expect to do your work well.四．让步状语从句的省略。
主要由though，although，however，whatever，even if，even though，no matter how/what引导。
例如：1.Though (he had been) defeated many times, he didn't lose heart.2.They worked very hard, though (he was) still rather weak.与if引导的虚拟条件从句不能用这类省略一样，as引导的让步状语从句同样不能省略。
不过如果让步状语从句由as引导时，从句中的表语（一般是形容词或名词）或状语必须提前到as前，构成倒装。
如果作表语的是单数可数名词，则还须省略不定冠词。
例如：Poor as he was, he was honest.Hard as he tried, he still failed.Much as I like her, I won't marry her.Child as he is, he can express himself in good English.五．原因状语从句的省略。
主要由because引导。
例如：1.He decided not to watch the foot ball match because (he was) not himself.2.I forget to post the letter for you because (I was) too busy.六．比较状语从句的省略。
主要由as，than引导。
例如：1.In winter it is much colder in Beijing than (it is) in Shanghai.2.The project was completed earlier than (it was) expected.3.Mary is not so shy as (she was) a year ago when I first met her.七．方式状语从句的省略。
主要由as，as if引导。
例如：1.The old man sat at the corner alone, as if (he was) thinking of something.2.English is not so difficult to learn, as (it is) generally supposed.综上所述，不难发现：这些省略形式的状语从句大都以"从属连词+形容词（副词、介词短语、不定式短语、现在分词或过去分词）"构成的。
省略后的句子不仅意思清楚，不会引起误解，而且结构紧凑，语言简练流畅，读起来明快生动。
EX:1.NO matter how frequently ______ , the works of Beethoven still attract people all over the world . （06 广东）A. perfprmedB. performingC. to be performedD. being performed2. -----Have you got any particular plans for the coming holiday?----- Yes, _______, I’m going to visit some ho mes for the old in the city. （08 安徽）A. If everB. If busyC. If anythingD. If possible3. – Who should be responsible for the accident? （08 福建）– The boss, not the workers. They just carried out the order _____.A. as toldB. as are toldC. as tellingD. as they told4. When asked _____ they needed most, the kids said they wanted to feel important and loved.（08 湖南）A. whatB. whyC. whomD. which5. The lawyer rarely wears anything other than jeans and a T-shirt ______ the season.A. whateverB. whereverC. wheneverD. however６. _______ , the experiment is sure to succeed .A. If carefully doingB. If it done carefullyC. If carefully doneD. If it doing carefully7. --I hear that Bai Shan can't afford his schooling this fall .--_________ , let's do something for him .A. If soB. Where possibleC. When necessaryD. What a shame8.When______, the museum will be open to the public next year.A. completedB. completingC. being completedD. to be completed(2002年上海春季试题)9.Unless______ to speak, you should remain silent at the conference.A. invitedB. invitingC. being invitedD. having invited(2003年上海春季试题)10.If______ the same treatment again, he is sure to get well.A. givingB. giveC. givenD. being given(1998年上海高考试题)11.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 (2004年甘肃、青海等省市高考试题)12. When first______ to the market, these products enjoyed great success.A. introducingB. introducedC. introduceD. being introduced(2004年吉林、四川等省市高考试题)。