高中英语状语从句讲解汇总

高中英语状语从句讲解汇总
高中英语状语从句讲解汇总

在句子中起状语作用的从句叫状语从句。状语从句可位于主句之前,也可位于主句之后。状语从句可以分为时间状语从句、地点状语从句、条件状语从句、让步状语从句、原因状语从句、目的状语从句、结果状语从句、方式状语从句、比较状语从句等。

一,方式状语从句

引导状语从句的连词和词组有:as,as if,as though等。

留意:①as if/though从句经常用虚拟语气,表示与事实相反。

She always talked to me as if she were mysister.

②有时从句也可用称述语气,表示所说情况是事实或实现的可能性较大。

He treats me as if I am a stranger.

③从句有时可以省略某些成分。

The wounded soldier cried as(he were)in great pain.

④as if/though也可以引导表语从句。.When a pencil is partly in a glass of water, it looks as if

it______.[N95]

A.breaks

B.was broken

C.were broken

D.had been broken

【简析】当as if引导虚拟语气的句子时,假如主句与从句的谓语动词同时发生,从句用一般过往时;假如从句谓语动词发生在主句谓语动词之前,从句用过往完成时。该题主句与从句的谓语动词同时发生,表示与现在事实相反,故答案为C。

二,比较状语从句

引导比较状语从句的连词和词组有:than, as…as…,not so…as…, the+比较级…, the+比较级等A hare can walk faster than a tortoise runs.

She is as tall as her mother (is).

留意:有时在than从句中,若有省略,所使用的代词的格不同,含义不同。

She respects him more than I.她比我更尊敬他。

She respects him more than me.她尊敬他甚于尊敬我。

☆比较while, when, as

1)as, when (正当)引导短暂性动作的动词。例如:

Just as / Just when / When I stopped my car, a man came up to me. 我一刹车,有一个人向我走来。

下。

2)从句表示"随时间推移"连词能用as,不用when 或while。例如:

As the day went on, the weather got worse.日子一天天过去,天气越变越坏。

A, 形容词和限定动词连用时的比较

It’s darker today than it was yesterday.

今天比昨天天色昏暗。

He doesn’t pay as much tax as we do/as us.

他没我们交的税款多。

He spends more than he earns.

他花的比挣的多。

注意:that+形容词是一种口语形式,表示“那么……”:

—Will it cost£100?

—No,it won’t cost as much as(all)that.It won’t be(all)that expensive./It won’t be as expensive as that.

—要花100英镑吗?

—不,花不了那么多。没那么贵。

that+形容词结构有时用于口语中表示very(很)的意思。

B, 副词和限定动词连用时的比较

He didn’t play as well as we expected/as well as you(did).

他打得不如我们预料的好/你打得好。

He sings more loudly than anyone I’ve ever heard/than anyone else (does).

他唱得比我听到的任何人唱得都响/比任何人都声音响。

You work harder than he does/than him/than I did at your age.

你比他干得卖劲/我在你这个年龄时干得卖劲。

C 形容词和不定式或动名词连用时的比较:

通常两者都可使用,但动词不定式常常用于特定的动作,动名词则用于一般情况

It’s sometimes as cheap to buy a new one as(it is)(to)repair the old one.

Buying a new one is sometimes as cheap as repairing the old one.

有时买一个新的跟修理旧的一样便宜。

He found that lying on the beach was just as boring as sitting in his office.

He found lying on the beach just as boring as sitting in his office.

他发现躺在沙滩上和坐在办公室里一样没趣/烦人。

He thinks it(is)safer to drive himself than(to)let me drive.

He thinks that driving himself is safer than letting me drive.

他认为自己开车要比让我开车更安全些。

D,上面C所述的这种比较句式中,如as/than前面用的是动词原形,则常在as/than后面用动词原形而不用动名词。与此相同,如as/than前面用的是动名词,则在其后面一般也使用动名词,而不用动词原形,见前面的例子。位于as/than之前的限定动词+this/that/which后面多跟动名词,虽也可跟动词不定式:

I’ll deliver it by hand;this will be cheaper than posting it.

我自己送过去,这样比邮寄要便宜。

He cleaned his shoes,which was better than doing nothing.

他把自己的鞋擦了,这总比无事可做好。

E,动词原形与would rather/sooner连用Most people would rather work than starve.

多数人宁可工作也不愿挨饿。

I would resign rather than accept him as a partner.

我宁可辞职也不愿接受他为合伙人。

三,引导时间状语从句的连词和词组有:

引导时间状语从句的连词和词组有:when,while,as(与……同时),

before,whenever,since(自从……),once,till,until,immediately,as soon …as, the moment,every time, after,by the time, hardly…when…(一……就……),no sooner…than…等。

Some one called me up in the middle of the night, but they hung up ______I could answer the phone.[N2000]

A.as

B.since

C.until

D.before

【简析】有人半夜给我打电话,但是我还未来得及接,电话便挂断了。可见答案为D,before 含义为“在……之前”。

2.Why do you want a new job______you’ve got such a good one already?[N98]

A.that

B.where

C.which

D.when

【简析】答案为D。此处when引导一个时间状语从句,其含义为“既然”,相当于since。该句句意为:既然你已有了这样一份好工作,为什么还想要一份新工作呢?

3.―I’m going to the post office.

―______you’re there,can you get me some stamps?[N99]

A.As

B.While

C.Because

D.If

【简析】根据上下文可知B为最佳答案。While指的是“在一段时间内”,表示从句的动作与主句的动作同时发生,并且有延续的含义,因此从句所用的谓语动词经常是延续性的。由于you’rethere表示“当你在那里”,它和买邮票的动作同时进行,故选用While。As意为“一边……一边……”,分歧题意。

4.Mother was worried because little Alice was ill,especially______Father was away in France.[N94]

A.as

B.that

C.during

D.if

【简析】连词as可作“与……同时”讲,此时相当于when或while,引导一个时间状语从句,表示一个持续性的动作,侧重表示主句与从句的动作同时发生。故答案为A,句意为:妈妈着急由于小爱丽斯病了,尤其是当时她爸爸还远在法国。during也表示“在……期间”,但它是介词,不能引导一个从句。

5.―What was the party like?

―Wonderful.It’s years______ I enjoyed myself so much.[M93]

A.after

B.before

C.when

D.since

【简析】该题考查句型“Itis/was+一段时间+since从句”的用法。留意since从句的谓语动词常是短暂性的动词,如:It’stwoyearssincehejoinedthearmy.(他参军两年了。);若谓语动词是延续性的,翻译时应用它相反的含义,如该题中的enjoy便是延续性动词,所以该句句意为:我有好几年没有这么开心地玩了。故答案为D,since表示一段时间的出发点,意为“自从……”。

6, we had hardly got home when it rained.

我们刚到家就下起雨来了.

四,地点状语从句

地点状语从句通常由where, wherever 引导。例如:

Where I live there are plenty of trees. 我住的地方树很多。

Wherever I am I will be thinking of you. 不管我在哪里我都会想到你。

五,原因状语从句

比较because, since, as和for:

1)because语势最强,用来说明人所不知的原因,回答why提出的问题。当原因是显而易见的或已为人们所知,就用as或since。例如:

I didn't go, because I was afraid. 我不去是因为我怕。

Since /As the weather is so bad, we have to delay our journey. 天气那么糟,旅行推迟了。2)由because引导的从句如果放在句末,且前面有逗号,则可以用for来代替。

He is absent today, because / for he is ill. 他今天缺席,因为他病了。

He must be ill, for he is absent today. 他一定病了,所以今天缺席。

六,目的状语从句

表示目的状语的从句可以由that, so that, in order that, lest (以免,唯恐),for fear that (以免,唯恐), in case(以防,万一)等词引导。例如:

You must speak louder so that /in order that you can be heard by all. 你必须大点声,别人就能听见了。

He wrote the name down for fear that(lest)he should forget it. 他写下了这个名字以免以后忘记。

You’d b etter take more clothes in case the weather is cold. 最好多穿点衣服,以防天发冷。七,结果状语从句

结果状语从句也叫程度状语从句,常用的连词词组有:so…that…,such…that…,so that等。

留意:so that既引导结果状语从句,也引导目的状语从句,如何区别呢?

一是根据上下文的含义区别。

二是从形式上加以区别。

so that引导结果状语从句时,从句前经常用逗号隔开;sot hat引导目的状语从句,从句中常使用may,might,can,could等情态动词。如:

He got up early, so that he caught the first bus.(结果状语从句)

He got up early so that he could catch the first bus.(目的状语从句)

结果状语从句常由so…that 或such…that引导。so…that与such…that之间可以转换。例如:

The boy is so young that he can't go to school. 这男孩年龄太小,不能上学。

He is such a young boy that he can't go to school

八,条件状语从句

连接词主要有if, unless, as/so long as, on condition that 等。if 引导的条件句有真实条件句和非真实条件句两种。非真实条件句已在虚拟语气中阐述。

unless = if not.例如:

Let's go out for a walk unless you are too tired. 如果不太累,我们去散散步。

If you are not too tied, let's go out for a walk.

典型例题

You will be late ___ you leave immediately.

A. unless

B. until

C. if

D. or

答案A。句意:除非你立即走,否则你就回迟到的。可转化为If you don’t leave immediately, you will be late。B、D句意不对,or表转折,句子如为You leave immediately or you will be late.

九,让步状语从句

1)though, although引导的让步状语从句,后面的从句不能有but,但是though 和yet可连用。例如:

Although it's raining, they are still working in the field.虽然在下雨,但他们仍在地里干活。He is very old, but he still works very hard. 虽然他很老了,但仍然努力地工作。

Though he is very old, yet he works very hard. 虽然他很老了,但仍然努力地工作。

2)as, though 引导的让步从句必须表语或状语提前(形容词、副词、分词、实义动词提前)。例如:

Child as /though he was, he knew what was the right thing to do.

虽然是个小孩,该做什么不做什么,他全知道。

3)ever if, even though即使。例如:

We'll make a trip even though the weather is bad. 即使天气不好,我们也要去远足。4)whether…or…不管……都。例如:

Whether you believe it or not, it is true. 信不信由你,这确实是真的。

5)"no matter +疑问词" 或"疑问词+后缀ever" 。例如:

No matter what happened, he would not mind. =Whatever happened, he would not mind. 不管发生什么,他不在意。

替换:no matter what = whatever no matter who = whoever

no matter when = whenever no matter where = wherever

no matter which = whichever no matter how = however

注意:no matter 不能引导主语从句和宾语从句。

(错)No matter what you say is of no use now.

(对)Whatever you say is of no use now. 你现在说什么也没用了。(Whatever you say 是主语从句)

(错)Prisoners have to eat no matter what they're given,

(对)Prisoners have to eat whatever they're given.囚犯们只能给什么吃什么。

1. …. How long has this bookshop been in business? -- 198

2.

A. After

B. In

C. From

D. Since

2. Mother was worried because little Alice was ill, especially _____________ Father was away in France. A. as B. that C. during D. if

3. If we work with a strong will, we can overcome any difficulty, ____ great it is.

A. what

B. how

C. however

D. whatever

4. After the war, a new school building was put up __ there had once been a theatre.

A. that

B. where

C. which

D. when

5. — I am going to the post office. -- you’re there, can you get me some stamps?

A. As

B. While

C. Because

D. If

6. You should make it a rule to leave things _________ you can find them again.

A. when

B. where

C. then

D. there

7. ____________ you’ve got the chance, you might as well make full use of it.

A. Now that

B. After

C. Although

D. As soon as

8. We’ll have to finish the job, _____________.

A. long it takes however

B. it takes however long

C. long however it takes

D. however long it takes

9. Someone called me up in the middle of the night, but they hung up ____________

I could answer the phone. A. as B. since C. until D. before

10. The WTO cannot live up to its name _____________ it does not include a country that is home to one fifth of mankind.

A. as long as

B. while

C. if

D. even though

11. The men will have to wait all day _________ the doctor works faster.

A. if

B. unless

C. whether

D. that

12. — 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

13. Americans eat _____ vegetables per person today as they did in 1910.

A. more than twice

B. as twice as many

C. twice as many as

D. more than twice as many

14. — How far apart do they live?

---_____ I know, they live in the same neighborhood.

A. As long as

B. As well as

C. As far as

D. As often as

15. A good storyteller must be able to hold his listeners’ curiosity ________ he reaches the end of the story. A. when B. unless C. after D. until

16. Generally speaking, ________ according to the directions, the drug has no side effect. A. when taking B. when taken C. when to take D. when to be taken 17. —Dad, I’ve finished my assignment.

Good, and __________ yo u play or watch TV, you mustn’t disturb me.

A. whenever

B. whether

C. whatever

D. no matter

18. — Was his father very strict with him when he was at school?

— Yes. He has never praised him ____________ he became one of the top students in his grade. A. after B. unless C. until D. when

19. He made a mistake, but then he corrected the situation _______ it got worse.

A. until

B. when

C. before

D. as

20. ___________ I know the money is safe, I shall not worry about it.

A. Even though

B. Unless

C. While

D. As long as

21. Scientists say it may be five or six years _________ it is possible to test this medicine on human patients. A. since B. after C. before D. when

22. You should try to get a good night’s sleep __ much work you have to do .

A. however

B. no matter

C. although

D. whatever

23. It was evening _______ we reached the little town of Winchester .

A. that

B. until

C. since

D. before

24. _____ modeling business is by no means easy to get into, the good model will always be in demand. A. While B. Since C. As D. If

25. We were swimming in the lake ______ suddenly the storm started.

A. when

B. while

C. until

D. before

26. _______ I can see, there is only one possible way to keep away from the danger.

A. As long as

B. As far as

C. Just as

D. Even if

27. We were told that we should follow the main road ______ we reached the central railway station . A. whenever B. until C. while D. wherever

28. _____ you call me to say you' re not coming, I'll see you at the theatre.

A. Though

B. Whether

C. Until

D. Unless

29. You can eat food free in my restaurant ________ you like.

A. whenever

B. wherever

C. whatever

D. however

30. __________ I accept that he is not perfect, I do actually like the person.

A. While

B. Since

C. Before

D. Unless

31. Several weeks had gone by ______I realized the painting, was missing.

A. as

B. before

C. since

D. when

32. Jasmine was holidaying with her family in a wildlife park _____ she was bitten on the leg by al lion. A. when B. while C. since D. once

33. ___, I have to put it away and focus my attention on study this week.

A. However the story is amusing B No matter amusing the story is

C. However amusing the story is

D. No matter how the story is amusing

34. It is almost five years we saw each other last time.

A. before

B. since

C. after

D. when

35. What a table ! I’ve never seen such a thing before .It is it is long.

A. half not as wide as

B. wide not as half as

C. not half as wide as

D. as wide as not half

36. Simon thought his computer was broken his little brother pointed out that he had forgotten to turn it on. A. until B. unless C. after D. because

37. I’d like to arrive 20 m inutes early ____ I can have time for a cup of tea.

A. as soon as

B. as a result

C. in case

D. so that

38. It wasn’t until nearly a month later I received the manager’s reply.

A. since

B. when

C. as

D. that

39. Unlike watching TV, reading is a highly active process (过程)_______ it requires attention as well as memory and imagination.

A. until

B. but

C. unless

D. for

40. The old tower must be saved, ____________ the cost.

A. however

B. whatever

C. whichever

D. wherever

41. You must keep on working in the evening ______ you are sure you can finish the task in time. A. as B. if C. when D. unless

42. That was really a splendid evening. It's years ______ I enjoyed myself so much.

A. when

B. that

C. before

D. since

43. John is the tallest boy in the class, ___________ according to himself.

A. five foot eight as tall as

B. as tall as five foot eight

C. as five foot eight tall as

D. as tall five foot eight as

44. —Did Jack come back early last night?

—Yes. It was not yet eight o’clock he arrived home.

A. before

B. when

C. that

D. until

45. Allow children the space to voice their opinions, _______ they are different from your own. A. until B. even if C. unless D. as though

46. The more I think about him, the more reasons I find for loving him __ I did.

A. as much as

B. as long as

C. as soon as

D. as far as

47. you’ve tried it. you can’t imagine how pleasant it is.

A. Unless

B. Because

C. Although

D. When

48. --- How long do you think it will be ________ China sends a manned spaceship to the moon?

--- Perhaps two or three years.

A. when

B. until

C. that

D. before

49. Jenny was very sad over the loss of the photos she had shot at Canada,

this was a memory she especially treasured. A. as B. if C. when D. where 50. "You can't have this football back you promise not to kick it at my cat again," the old man said firmly. A. because B. since C. when D. until

51. I had just stepped out of the bathroom and was busily drying myself with a towel ____ I heard the steps. A. while B. when C. since D. after

52. ________ environmental damage is done, it takes many years for the ecosystem (生态系统) to recover. A. Even if B. If only C. While D. Once

53. He was about halfway through his meal a familiar voice came to his ears. A. why B. where C. when D. while

54. he has limited technical knowledge, the old worker has a lot of experience. A. Since B. Unless C. As D. Although

55. We’re just trying to teach a point ____ both sides will sit down together and talk.

A. where

B. that

C. when

D. which

56. How can you expect to learn anything ____ you never listen? (06山东)

A. in case

B. even if

C. unless

D. when

57. His plan was such a good one ________we all agreed to accept it. (06 陕西)

A. so

B. and

C. that

D. as

58. This is a very interesting book. I’ll buy it, ________. (06 陕西)

A. how much may it cost

B. no matter how it may cost

C. however much it may cost

D. how may it cost

59. My parents were quarrelling about me ____ I could not quite tell why.

A. since

B. though

C. if

D. until

60. --- Mom, what did your doctor say?

--- He advised me to live_____ the air is fresher. (06四川)

A. in where

B. in which

C. the place where

D. where

61. --- Why didn’t you tell him about the meeting?

--- He rushed out of the room ____I could say a word. (06四川)

A. before

B. until

C. when

D. after

62. The cost of living in Glasgow is among the lowest in Britain, the quality of life is probably one of the highest. A. since B. when C. as D. while 63. If you are traveling the customs are really foreign to your own, please do as the Romans do. A. in which B. what C. when D. where

64. In time of serious accidents,________ we know some basic things about first aid, we can save lives. A. whether B. until C. if D. unless

65. _________ most of the earth’s surface is covered by water, fresh water is very rare and precious.

A. As

B. Once

C. If

D. Although

(完整)高中英语-状语从句练习题及答案详解

状语从句练习题 1.I had been looking for the book for two days____ I found it at last. a.until b. when c. before d. while 2.He punished his students ____ they did anything wrong. a.however b. whenever c. whatever d. whichever 3.Those passengers will wait here____ the bus arrives. a.until b. because c. though d. as 4.Hardly had we reached home ____ it began to rain. a.before b. than c. as soon as d. when 5.No sooner had we arrived at the cinema___ the film began. a.than b. before c. when d. as soon as 6.You can’t watch TV ____ you’ve finished your homework. a.since b. until c. as d. after 7.We had scarcely left our school____ the rain began. a.before b. than c. while d. when 8.We have never seen her again_____ she went to work in another city. a.when b. as c. since d. while 9.____ the fight stopped, travel across the country has been quite safe. a.Since b. When c. After d. Unless 10.They were just about to leave____ the telephone rang.

高中英语状语从句讲解汇总

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高中英语语法_状语从句练习30题及详解

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第五讲-高中英语状语从句详解

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高中英语Module3BodyLanguageandNon-verbalCommunicationSectionⅢGrammar-条件状语从句和让步状语从句教学

Module 3 Body Language and Non-verbal Communication Section Ⅲ Grammar-条件状语从句和让步状语从句 语法图解 探究发现 ①If you say the word “communication”, most people think of words and sentences. ②In case there is a fire, what will you do first? ③You won't arrive there on time unless you take a plane. ④Even if you were busy, you should take care of your family. ⑤Clever as he is, he doesn't make great efforts in his lesson. ⑥However much I tried, I couldn't work the question out. ⑦He keeps taking physical training in winter no matter how cold it is. ⑧Although/Though she works very hard, yet (still) she makes very slow progress. [我的发现] (1)①②③句中,黑体部分引导条件状语从句;④⑤⑥⑦⑧句中,黑体部分引导让步状语从句。 (2)由③句可知,在条件状语从句中,主句用将来时,从句用一般现在时代替一般将来时。 (3)⑧句中 although/though 引导让步状语从句不与 but 连用,但可以与 yet 或still 连用。 (4)由⑤句可知,as 引导让步状语从句且置于句首时,从句用倒装语序。 (5)⑥⑦句中,however 和 no matter how 都引导让步状语从句,两者可以换用。 一、条件状语从句 1.条件状语从句的引导词 引导条件状语从句的词/短语有:if (假设,如果), unless (除非), so/as long as (只

高中英语状语从句讲解和练习(含答案)

t 状语从句讲解和练习 状语修饰动词、形容词、副词或整个句子。通常由副词、介词短语、动词不定式、分词和从句等担当 。例如: 1. Naturally , our grandparents were pleased to get our phone call . (副词) 2. We worked hard , from sunrise to sunset . (介词状短语) 3. To help my disabled aunt , I spend an hour working in her house every day . (不定式) 4. Seen from a distance , the farmhouse looked deserted . (过去分词) 5. I know how to light a camp fire because I had done it before .(原因状语从句) 状语的位置比较灵活,可以位于句首、句末或句中。enough用作状语修饰形容词和副词时必须后置。 状语从句主要用来修饰主句或主句的谓语。一般可分为九大类,分别表示时间、地点、原因、目的、 结果、条件、让步、比较和方式。尽管种类较多,但由于状语从句与汉语结构和用法相似,所以理解 和掌握它并不难。状语从句的关键是要掌握引导不同状语从句的常用连接词 和特殊的连接词即考点。现分别列举如下: 1.时间状语从句 常用引导词:when, as, while, as soon as, while, before, after, since , till, until 特殊引导词:the minute, the moment, the second, every time, the day,the instant, immediately , dire ctly, no sooner … than, hardly …when, scarcely … when I didn’t realize how special my mother was until I became an adult. While John was watching TV, his wife was cooking. The children ran away from the orchard(果园) the moment they saw the guard. No sooner had I arrived home than it began to rain. Every time I listen to your advice, I get into trouble. 2.地点状语从句 常用引导词:where 特殊引导词:wherever, anywhere, everywhere Generally, air will be heavily polluted where there are factories. Wherever you go, you should work hard. 3.原因状语从句 常用引导词:because, since, as, since 特殊引导词:seeing that, now that, in that, considering that, given that, considering that, My friends dislike me because I’m handsome and successful. Now that everybody has come, let’s begin our conference. The higher income tax is harmful in that it may discourage people from trying to earn more. Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable. 4.目的状语从句 常用引导词:so that, in order that 特殊引导词:lest, in case, for fear that,in the hope that, for the purpose that, to the end that The boss asked the secretary to hurry up with the letters so that he could sign them. The teacher raised his voice on purpose that the students in the back could hear more clearly. 5.结果状语从句 常用引导词:so … that, so… that, such … that, 特殊引导词:such that, to the degree that, to the extent that, to such a degree that, He got up so early that he caught the first bus. It’s such a good chance that we must not miss it. To such an degree was he excited that he couldn’t sleep last night.

高中英语状语从句讲解及练习

状语从句 在复合句中作状语,位置灵活。 状语从句可分为时间状语从句,目的状语从句,条件状语从句,让步状语从句,地点状语从句,原因状语从句,方式状语从句,结果状语从句。 (一)时间状语从句 1.when, as, while a.when表时间,从句既可以用延续性动词,又可以用瞬间动词。 Eg: When I get there I will call you. 如果when引导的时状的主语与主句的主语相同,而从句的谓语又是be动词时,那么从句中的主语与be 可省。 Eg:When (you are)in trouble, you can ask her for help. 如果when引导的时状的主语与主句的主语相同时,往往可以用“when+分词”的形式代替该状从。Eg:When I came into the room(When coming into the room), I found the light was off. b.while表时间,从句需用延续性动词,或者主句的动作发生在从句的动作进行过程中。主句的谓语动词 通常是非延续性动词。 Eg: He came in while I was reading a book. I met her while I was in school. c. as表时间,与when相似,但侧重强调主从句动作同在时间点或同时间段进行。同时可表示主句的动作随着从句的动作的变化而变化。 Eg: He jumps as he sings. As the wind rose, the noise increased. 2.before(在……之前)与after(在……之后) Eg:See me before you leave. I saw them after I arrived. 3. till与until 肯定形式表示的意思是"做某事直至某时"。否定形式表达的意思是"直至某时才做某事"。 Eg: Wait till/untill I call you. 等着直到我叫你。 She didn't arrive till/until 6 o'clock.. 她直到6点才到 但是置于句首时只可用untill. Until you told me, I had heard nothing of what happened. 直到你告诉我以前,出了什么事我一点也不知道。否定形式有另外两种表达方式: (1)Not until …在句首,主句用倒装。 Man did not know what heat was until the early years of the 19th century. =Not until the early years of the 19th century did man know what heat was. (2)It is not until…that… He will not go to bed until his mother comes home. =It is not until his mother comes home that he will go to bed. 4. as soon as/the moment/the instant/the second/the minute/immediately和hardly/scarcely…when, no sooner…than a. as soon as/the moment/the instant/the second/the minute/immediately 表示主句和从句的动作同时发生。译为“一……就” Eg:As soon as she heard the news, she began crying. b. hardly/scarcely…when, no sooner…than都可以表示"一……就……"的意思,但主句谓语动词一般要用过去完成时,从句谓语动词要用一般过去时。 Eg:I had hardly / scarcely got home when it began to rain. I had no sooner got home than it began to rain.注意:如果hardly, scarcely 或no sooner置于句首,句子必须用倒装结构:Hardly / Scarcely had I got home when it began to rain. No sooner had I got home than it began to rain。 1. We called the First - Aid Center_______ the traffic accident happened. A. immediately B. shortly C.quickly D. hurriedly 2. The roof fell _____he had time to dash into the room to save his baby. A. before B. as C. after D. until 3. A good storyteller must be able to hold his listeners’ curiosity he reaches the end of the story. A when B whenever C.after D.until 4. I had just started back for the house to change my clothes _______ I heard the voices. A. as B. for C. while D.when 5. ______ the day went on, the weather got worse. 1

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