状语从句的省略
• 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。
• 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。
• 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.
• 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。
• 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.
• （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。
• （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。
• 状语从句省略具体分析。 • 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。 • 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。
状语从句的省略
பைடு நூலகம்
• （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。
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：
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。
状语从句的省略与强调句型
状语从句的省略与强调句型状语从句是英语中常用的一种句子结构，它可以在句子中充当状语，用来修饰动词、形容词、副词等。
在使用状语从句时，有时可以省略部分成分，从而使句子更简洁明了。
同时，通过加入强调句型，我们可以突出状语从句中的重要信息，提高表达的效果。
本文将探讨状语从句的省略与强调句型。
1. 状语从句的省略在英语中，状语从句可以根据情况省略主语、谓语、宾语等成分，以简化句子结构。
状语从句的省略主要体现在时间状语从句、地点状语从句和条件状语从句中。
1.1 时间状语从句通常情况下，时间状语从句与主句之间存在一个连词，如when （当）、while（当...的时候）、after（在...之后）、before（在...之前）等。
但是，当主句中的谓语动词为延续性动词（继续进行的动作或状态）时，时间状语从句的连词和主句的谓语动词可以省略。
例如：- He was reading a book when I arrived.（当我到达时，他正在看书。
）- He was reading a book I arrived.（当我到达时，他正在看书。
）1.2 地点状语从句地点状语从句表示行为发生的地点，通常使用连词where（在哪里）、wherever（无论在哪里）等引导。
然而，在某些情况下，地点状语从句可以省略引导连词where。
例如：- He lives in the house where he was born.（他住在他出生的房子里。
）- He lives in the house he was born.（他住在他出生的房子里。
）1.3 条件状语从句条件状语从句表示主句发生的条件，通常使用连词if（如果）、unless（除非）等引导。
有时，在条件状语从句中的谓语动词是be动词时，可以将if省略。
例如：- If it rains tomorrow, we will stay at home.（如果明天下雨，我们会待在家里。
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。
状语从句的省略
状语从句的省略一、五种状语从句常简化:① if, unless条件状语从句;② when, while, as, before, after, until / till时间状语从句;③ although, though, even if / though让步状语从句;④ as, as if方式状语从句;⑤ as, than比较状语从句。
二、状语从句省略的两个条件:①主句和从句的主语一致，或从句主语为it；②从句谓语动词含有be的某种形式。
e.g.条件：He’ll go to the seaside fo r his holiday if (it is) possible.时间：When (the museum is) completed, the museum will be open to the public next year.比较：I’m taller than he (is tall ).The higher the temperature (is), the greater the pressure (is ).三、状语从句省略后的形式1）从句主语为it的从句：条件：If (it is) possible, he will help you out of the difficulty.让步：You must attend the meeting unless (it is) inconvenient to you. 2）主句和从句的主语一致a.连词+形容词As (he was) young, he learned how to ride a bike.Whenever (she is) free, she often goes shopping.Work hard when (you are) young, or you'll regret.b.连词+名词While (he was) a young boy, he was always ready to help others. Although (he was) a farmer, now he is a famous director.c.连词+现在分词As (she was) walking along the river bank, she was singing a pop song. Although (he is) doing his best in maths these days, he has still got no good marks.d.连词+过去分词He won't go there with us unless (he is) invited.The concert was a great success than (it was) expected.e.连词+不定式He stood up as if (he were) to say something.He wouldn't solve the problem even if (he were) to take charge.f. 连词+介词短语She looked anxious as though (she was) in trouble.He had mastered the English language before (he was) in the USA.注意:当从句主语和主句主语不一致时,从句部分要么用完整的句子,要么用独立主格结构来表达。
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。
（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。