时间状语从句练习
时间：2021.02.03 创作：欧阳体 1. It was quiet ________ those big trucks started coming through the town.
A. before B. after C. until D. unless
2. It seemed only seconds ________ the boy finished washing his face.
A. when B. before C. after D. even if
3. Hardly had he reached the school gate ________ the bell rang.
A. while B. when C. as D. as soon as
4.We were told that we should follow the main road _____ we reached the central railway station.
A. whenever B. until C. while D. wherever
5. I recognized you ________ I saw you at the airport. A. the moment B. while C. after D. once
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6. He was about to go to bed ________ the doorbell rang. A. while B. as C. before D. when
7.________I listen to your advice, I get into trouble. A. Every time B. When C. While D. Until
8. _____ John was watching TV, his wife was cooking. A. As B. As soon as C. While D. Till
9. The children ran away from the orchard(果园) ______ they saw the guard.
A. the moment B. after C. before D. as
10. No sooner had I arrived home _____ it began to rain. A. when B. while C. as D. than
11. Several weeks had gone by _____ I realized the painting was missing.
A. as B. before C. since D. when
12. It _____ long before we ____ the result of the experiment.
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A. will not be; will know B. is; will know C. will not be ; know D. is; know
13. –What was the party like?
--Wonderful. It’s years _____ I enjoyed myself so much. A. after B. before C. when D. since
14. The new secretary is supposed to report to the manager as soon as she_____.
A. will arrive B. arrives C. is going to arrive D. is arriving 15. _____ got into the room _____ the telephone rang.
A. He hardly had; then B. Hardly had he; when C. He had not; then D. Not had he; when
16. No sooner had he finished his talk _____ he was surrounded by the workers.
A. as B. then C. than D. when
17. –Did you remember to give Mary the money you owed her? --Yes, I gave it to her _____ I saw her. A. while B. the moment C. suddenly D. once
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18. I thought her nice and honest _____ I met her.
A. first time B. for the first time C. the first time D. by the first time
19. He will have learned English for eight years by the time he _____ from the university next year.
A. will graduate B. will have graduated C. graduates D. is to graduate
20. The moment the 28th Olympic Games _____ open, the whole world cheered.
A. declared B. have been declared C. have declared D. were declared
答案：CBBBA DACAD BCDBB CBCCD 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
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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，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。
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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。此时构成连词(if , unless ,when , whenever)+形容词的结构。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。
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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。
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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。
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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.
时间：2021.02.03 创作：欧阳体 欧阳体创编 2021.02.03 欧阳美创编 2021.02.03
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