状语从句的省略规则
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
英语中状语从句的省略规则
在英语的实际应用中，有时上下文或当时的语境能够帮助我们理解所写的内容，所以有的时候可以省去一个或更多的句子成分，但前提是不影响句子的理解和可读性，因此若有具体的上下文支撑，是可以省去部分成分。
跟定语从句的“瘦身”原理类似，状语从句也可以“瘦身”，这种“瘦身”原理就是省略。
若从句的主语与主句的主语一样，那么通常可以省略从句的主语或助词，然后动词做相应的变化，例如：While Sarah was studying, she fell asleep.萨拉在学习时睡着了。
解析：此句可以省略，因为从句中的主语和主句中的主语都是 Sarah，因此可以省略为 While studying, she fell asleep，但是以下这句不能省略，例如：While Sarah was talking, I fell asleep.萨拉说话的时候，我睡着了。
解析：从句中的主语 Sarah 和主句的主语 I 不一样，所以不能省略。
一、状语从句带 be 动词的省略在带 be 动词（am, is, are, was, were, been, being）的状语从句中，直接省略主语和 be 动词，例如：1. 萨拉在学习时睡着了。
While she was studying, Sarah fell asleep.省略：While studying, Sarah fell asleep.2. 尽管他迟到了，他还是被允许去看电影。
Although he was late, he was admitted to the movie.省略：Although late, he was admitted to the movie.二、状语从句不带 be 动词的省略在不带 be 动词（am, is, are, was, were, been, being）的状语从句中，直接省略主语，然后把对应的动词变成 -ing 形式，例如：1. 杰克读完这本书后，把它放回书架上。
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。
状语从句的省略与非省略
状语从句的省略与非省略状语从句是英语语法中的一个重要概念，它用来修饰主句中的动作或状态，并且通常由连词引导。
在状语从句中，有时可以省略部分内容，从而简化句子结构，增强语言的流畅性。
本文将探讨状语从句的省略与非省略的问题，并给出相应的例句进行解析。
1. 省略状语从句的主语和谓语动词在某些情况下，状语从句的主语和谓语动词可以被省略，只保留其他部分。
这种省略常见于时间状语从句和原因状语从句中。
例如：- Before leaving. （在离开之前。
）- Since it was raining. （因为下雨。
）2. 省略状语从句的连词在一些情况下，状语从句的连词可以被省略，使句子更加简洁明了。
这种省略通常出现在条件状语从句和结果状语从句中。
例如：- If you study hard, you will pass the exam. （如果你努力学习，你会通过考试。
）- Study hard, and you will pass the exam. （努力学习，你会通过考试。
）3. 省略状语从句的主语和连词有时候，状语从句的主语和连词都可以被省略，只保留谓语动词和其他部分。
这种省略常见于让步状语从句和目的状语从句中。
例如：- Although tired, they continued working. （虽然疲劳，他们继续工作。
）- They continued working, tired as they were. （他们继续工作，虽然很疲劳。
）4. 非省略状语从句的形式状语从句也可以选择不进行省略，保留完整的句子结构。
这种形式在强调从句内容或提供更多细节时常常使用。
例如：- Although he was tired, he continued working until midnight. （虽然他很疲劳，他继续工作直到午夜。
）- Since it was raining heavily, we decided to stay at home. （因为下雨很大，我们决定待在家里。
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。
从句的省略规则
从句的省略规则从句是在句子中充当一个整体，起到修饰、表达具体含义的作用。
在使用从句的时候，有时候可以采用省略规则，即省略一些不必要或重复的成分，使句子更加简洁明了。
本文将介绍从句的省略规则，帮助读者更好地理解和运用这一语法现象。
一、主语从句的省略在主语从句中，如果主句的主语与从句的主语一致，且从句的谓语动词是be动词（am，is，are，was，were），可以将从句的主语省略。
例句1：That he is talented is well known.（从句的主语he省略）例句2：Whether she can come or not is still unknown.（从句的主语she省略）二、宾语从句的省略在宾语从句中，如果从句的主语和主句的宾语一致，且从句的谓语动词是be动词，可以将从句的主语和be动词省略。
例句1：I don't know if he's ready.（从句的主语he和be动词省略）例句2：She wonders whether it's true or not.（从句的主语it和be动词省略）三、宾语补足语从句的省略在宾语补足语从句中，如果从句的主语和主句的宾语补足语一致，且从句的谓语动词是be动词，可以将从句的主语和be动词省略。
例句1：They elected him chairman, which was a wise choice.（从句的主语which和be动词省略）例句2：We made her the team captain, which turned out to be a mistake.（从句的主语which和be动词省略）四、定语从句的省略在定语从句中，当从句的主语和关系代词或关系副词引导的介词宾语一致时，可以将从句的主语和关系代词或关系副词省略。
例句1：The book I borrowed from the library is very interesting.（从句的主语I省略）例句2：The girl I saw at the party is my best friend.（从句的主语I省略）五、状语从句的省略在状语从句中，当从句的主语和主句的主语一致，且从句的谓语动词是be动词，可以将从句的主语和be动词省略。
1.-状语从句的省略
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★ We all know that, _______, the situation will get worse.
A. not if dealt carefully with B. if not carefully dealt with C. if dealt not carefully with D. not if carefully dealt with
D. asked
分析: 本题考查的是状语从句的省略,用补全法。 补充完整是When __h_e__w_a_s____asked why he
jumped …
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★ If you go to Xi’an, you will find the palaces
there more magnificent than (they are) commonly＿＿＿.
(建立一个更加合理的评价体制).
A. being opposed B. to oppose
C. opposing
D. opposed
opposed to
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★ ________ on the MSN, some people often use “88” for “goodbye”．
There are some health problems that, when ______ in time, can become bigger ones later on.
A．When chat
B．When chatting
C．When chatted D．When to chat
解析:此题若补充完整则为：When people are chatting on the MSN ... 。句意：当人们在 MSN上聊天时,经常用“88”代替“拜拜”。
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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. 如果有必要，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.她完成得比预期要早。