高中原因状语从句及练习.docx
2.原因状语从句
原因状语从句表示主句中动作或状态发生的原因或理由,可位于主句之前, 之后或插在主句中间。主句表示结果,从句表示原因,主要由because, as, since, for,
seeing ( that), considering ( that), now (that), in that, not ... because等引导。
1)because “因为’’, as ‘‘由于”, since “既然”, for “因为”
because 意为“因为”,表示直接的原因或理由,着重点在从句,用于回答
why, 语气最强。
He is absent today because he is ill.
当主句为否定句时,从句because须用逗号与主句隔开,否则容易引起歧义。
I didn ’t visit him,because I wanted to borrow some books.
我没去拜访他,因为我想借几本书。
I didn ’t visit him because I wanted to borrow some books.
我不是因为想借几本书才去拜访他的。
as意为“由于”,表示十分明显的原因,所引导的从句常位于主句之前,有时也可位于主
句之后,一般说明因果关系,着重点在主句,原因或理由只是附带说明,不用于回答why 的问题 ,常用于口语。
As it is snowing, we shall not go to the park.
As this book is written in simple English, it is suitable for beginners.
since 意为“既然,由于”时表示对方已知的、无须加以说明的既成事实的理由,只是一个附带说明。 since = as it is the fact that ...全句中心在主句。如从句表示的原因不是确
定的事实 ,就不能用since,通常用because.
Since everybody is here, let’s begin our discussion.
Since you seem to know them, why don’t you introduce me to them?
for是一个并列连词,由 for连结的表原因的句子常看作并列句,它只提供一些补充说明或
对前一个分句加以解释,不可前置。与because不同的是:because引导的从句位置可前可后,而for 引导的分句只能后置 , 且往往须用逗号或分号与前一个分句分开。
I didn ’t go to see him, for a heavy snow was falling.
The days were short, for it was now December.
有时 , for引起的从句并不表示原因,而是表示一种推断或解释,而because则不能。
Someone in the house must be ill, for a doctor has just come out.
He couldn ’t have seen me, for I was not there.
一、填入恰当的连词
1.I didn ’t go to school yesterday _________ I was ill.
2.________ everybody is here, let’s begin our meeting.
3.________ you are in poor health, you should not stay up late.
4.I asked her to stay to tea, ________ I had something to tell her.
5. ________ all the passengers are here, why don’t we start at once?
6.Bill won ’t make any progress ________ he doesn ’t study harder than before.
7.He might have gone to bed, ________ the light went out.
二、填入恰当的
1.______ you do not understand, I will explain again.
2.______ Jane was the oldest in this family, she had to look after the others.
3.He must be ill, ______ he is absent today.
4.The teacher must be strict with you ______they want you to make great progress.
5._____your father is well again, you no longer have anything to worry about.
6.The day breaks, _____the birds are singing.
7. ______ you are ill, you’d better go to see the doctor.
8.______ she was late for class, she had to say sorry.
2.As
3. for
4. because
5. Since
6. for
7. Since
8. As
2)用下列短引:
seeing (that) in that“因”“ 于 ,既然” ,
,not ... because
considering (that)“考到”now (that)“既然”
“不是因” not that??but that“不是因??
,
而是因 ,’
seeing that与 considering that同 ,含近似since,所引的句子中心在主句,重在果。
Seeing that the weather is bad, we’ll stay at home.
Considering that they are newcomers, they’ve accomplished a lot.
now that的含与since(“既然”）接近,区在于:since表示原先已存在的情况,而now that表示由于新情况的出而促成某事生。
Now that it has stopped raining, let’s start at once.
Now that you are all here, let’s try to reach a decision.
in that作“因”解,由于介in的含是指“在??方面”,有限制作用,因此多指由于某一方面的原因或理由,不能位于句首。
I like the city, but I like the country better in that I have more friends in the
country.
I could understand his point of view, in that I ’d been in a similar position myself.
not ... because意“不是因”,构中的not 否定 because 。
She didn ’t marry you because you had money.
她不是因你有才嫁你。
The machine didn ’t stop beca use the fuel was used up.
机器不是因燃料耗尽才停下来的。
not that ... but that作“不是因??而是因”解。
Not that I don’t like the film, but that I have no time for it.
He felt a bit worried, not that they were not working hard, but that they didn ’t pay enough attention to safety.
家庭作业
恰当的答案
1. The man can ’t get on the bus ______ there is no room on it.
A. though
B. because
C. until D so that
2. ______ her daughter hadn’t come back, ______ she looked worried.
A. Because, /
B. Because, so
C. Though, but
D. Though, /
you’ve got a chance, you might make full use of it.
A. Now that
B. After
C. Although
D. As soon as
4. He found it difficult to read, _______ his eyesight was beginning to fail.
A. and
B. for
C. but
D. or
5.A man cannot smile like a child, ________ a child smiles with his eyes, while a
man smiles with his lips alone.
A. so
B. but
C. and
D. for
nobody was very interested in it, they decided to cancel the trip.
A. Even though
B. As soon as
C. While
D. Seeing that
ones our country has so many good table-tennis players, we have to decide on the best
to take part in the game.
A. Although
B. Since
C. If
D. While
3. Not that John doesn’t want to help you, ____ it’s beyond his power.
A.but that
B.for that
C.and that
D.in that
4.Animals suffered at the hands of man____ their habitats were destroyed by
people to make way for agricultural land.
A.in which
B.for which
C.so that
D.in that
Tom has no interest in piano, there is no point pushing him to learn it.
A.Now that
B.In case
C.Even if
D.As if
(D； B ； A ； D； A)
you’ve got a chance, you might as well make full use of it.
A. Now that
B. After
C. Although
D. As soon as
2. He found it increasingly difficult to read, ____ his eyesight was beginning to fail.
A. and
B. For
C. But
D. or
3.A man cannot smile like a child, ____ a child smiles with his eyes, while a man
smiles with his lips alone.
A. So
B. But
C. and
D. for
4.I didn’t go_____ I was afraid.
A. Since
B. For
C. Because
D. Though
5.______ it was raining, ______ we stayed at home.
A. Because, so
B. Because ,/
C. Because ,for
D. If ,so
6.I said nothing about it ____ his wife was there.
A. since
B. so that
C. because
D. unless
7.______ the weather is so bad, we have to delay our journey.
A. before
B. since
C. till
D. After
8._____it is raining, you’d better take a taxi.
A. before
B. as
C. till
D. after
9.You shouldn ’t get angry just______ some people speak ill of you.
A. since
B. so that
C. because
D. unless
10. _____you are here, you’d better stay.
A. before
B. Now that
C. till
D. after
11. I hurried ________I wouldn’t be late for class.
A. since
B. so that
C. as if
D. unless
12. I saw Mr. Smith last Sunday. We had not seen each other ________I left London.
A. as
B. before
C. since
D. till
13. ________ you are so w eak, you ’d better stay at home.
A. Since
B. For
C. Because
D. Though
14. I ’m sorry you ’ve been waiting so long, but it’ll still be some time ____ Brian
get back.
A. before
B. since
C. till
D. after
15.—Did you return Fred’s call?
—I didn ’t need to ____ I’ll see him tomorrow.
A. though
B. unless
C. when
D. Because
16. Accustomed to______ the steep mountains, he had no difficulty reaching the top.
A. climbing
17. ______ A. though B. climb C. having climbed D. have climbed
we’ve no money, we can ’t buy it.
B. unless
C. when
D. As
1-5: ABDCB6-10: CBBCB
11-15: BCAAD AD
高中英语句子翻译与写作 第15章 原因状语从句
第十五章原因状语从句 历届试题 1．由于粗心大意，汤姆错过了这个机会。(miss) (S98) 2．今天下午我没空，我和牙医有约。(appointment) (S05) 3．由于准备充分，他在面试中一点也不紧张。(not … at a11) (Ss05) 4．我不需要买新车，我的那辆旧车还很好。(condition) (S06) I. “because” 1．世界似乎已经变得更小了，因为我们有了快速旅行的手段。(grow smaller) 2．医生们对这病人无能为力，因为他们不知道这疾病的原因。(cause) 3．与他愿望相反，他的英语没有进步而是更差了，因为他只是把注意力集中在词义上，而不是在交际上。(contrary to，concentrate on) 4．汤姆离开了会场，因为他不愿意介入这场无意义的争论。(involve，meaningless) 5．由于约翰在面试中表现不好，所以没有能得到这个职位。(perform) 6．我现在什么东西也不想吃，因为我一点儿也不饿。(hungry) 7．我们仍有很长的路要走，因为乡村的有些地区都有水质问题。(free) 8．如果你想买点什么就得赶紧，因为所剩无几了。(hardly) 9．因为他感冒，体育老师准许他不做运动。(excuse) 10．他住在二楼，你不必坐电梯。(take) 11．MP3如今很流行，主要因为从网上下载歌曲很方便。(mainly) 12．因为他很害羞，他不敢在陌生人面前说话。(presence) 13．我竭尽全力搞好工作，因为我懂得不努力就会一事无成。(without) 14．流行音乐之所以在年轻人中流行是因为它能满足年轻人表达自己情感的需要。(popular) 15．因为方便和快捷，他喜欢通过电子邮件而不是通过电话和朋友们分享信息。(rather than) 16．这篇报告的作者很了解医院的问题，因为他在那里工作许多年了。(inform) 17．许多市民中意乘地铁，是因为它不会发生交通拥堵。(in favor of) Ⅱ.“as”“since”“now that” 1．因为天气不好，男孩们只能在室内做游戏。(indoors) 2．戏院里的人都很满意，因为最后一个场景产生了很好的效果。(effective) 3．他感到自己无能为力，便离开了实验室。(seeing that) 4．由于大桥建成，人们不必花很长时间摆渡了。(ferry) 5．布朗夫人寄给那个警察一张圣诞卡，因为她很感谢他的帮助。(grateful) 6．由于没有足够的矿泉水，我们只好将就着用雨水。(make do with) 7．这信封使我想起了他给我写的许多信，因为他常常提醒我要好好保重自己。(remind) 8．由于李老师病了，今天张老师代她的课。(substitute) 9．在中国左撇子比较少，因为左撇子从小就被迫用右手写字，使用筷子以及其他工具。 (force) 10．因为你已经不是小孩了，不要总是依靠父母，要学会照顾自己。(depend on) 11．博客迅捷方便，已对社会产生了巨大的影响。(impact)
(完整版)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.
原因状语从句的用法
原因状语从句的用法 原因状语从句表原因，以下逐一介绍高考中常见的原因状语从句的引导词： 1. because引导的原因状语从句一般放于主句之后， because表示直接原因，语气最强，最适合回答 why引导的疑问句。例如： I do it because I like it. 我做这件事是 因为我喜欢。 注意：“not ... because”结构中的not否定的是because引导的整个从句，有时也否定主句例如： The country is not strong because it is large. 国强不在大。I 2. since引导的原因状语从句一般放于主句之前表示已知的、显然的理由(通常被翻译成“既然”)，较为正式，语气比because弱。例如： Since you are free today, you had better help me with my mathematics. 既然今天你休息，你最好帮我补习数学。 注意： seeing (that)， now (that)， considering (that)， in that这几个词汇与since引导的原因状语从句意思相近，都表示“既然”。例如： Seeing (that) he refused to help us, there’s no reason that we should now help him. 他既然曾经拒绝帮助我们，我们现在没有理由要来帮助他。// Now (that) you are grown up, you should not rely on your parents. 既然你长大了，就不应该依靠你的父母了。// Considering (that) everyb ody is here, let’s begin our discussion. 既然大家都到了，我们就开始讨论吧。// In that he is ill, he feels unable to do it. 因为有病，他觉得做不了那件 事。注意： 1. considering 和 given 还可用介词。如： Considering his age, the little boy reads very well. 就他的年龄来说，这小孩读得 挺好的。 Given her interest in children, I am sure teaching is the right career for her. 考虑到她喜欢孩子, 我可以肯定教书是最适合她的职业。 2. 表示“因为”的连词不能与表示“所以”的 so 连用。如： 译：因为他病了，所以没有出席会议。 误：Because he was ill, so he didn’t attend the meeting. 正：He didn’t attend the meeting because he was ill. 正：He was ill so he didn’t attend the meeting 3. as 引导原因状语从句时表示附带说明的“双方已知的原因”，语气比since弱，较为正式，位置较为灵活(常放于主句之前)。例如：As it is raining, you’d better take a taxi. 既然在下雨，你最好乘出租汽车。// As you are tired, you had better rest.
高中英语状语从句讲解汇总
高中英语状语从句讲解汇总 原因从句 除了下面A2，A3中所示各种类型外，这两种从句均可由as或because来引导。但是用as引导原因从句较为稳妥（参见A）；用because引导结果／原因从句较为稳妥（参见B）。 A 原因从句 1 由as／because／since 引导的原因从句： We camped there as／because／since it was too dark to go on． 我们在那里露宿是因为天太黑，不能再继续往前走了。 As／Because／Since it was too dark to go on，we camped there． [ 因为天太黑不能再继续往前走，我们就在那儿露宿了。 2 in view of the fact that可用as／since／seeing that来表示，但不能用because： As／Since／Seeing that you are here，you may as well give me a hand． 既然你在这儿，你就帮我个忙吧。 As／Since／Seeing that Tom knows French，he’d better do the talking． 既然汤姆懂法语，最好让他来谈。 3 在as／since／seeing that意指以前共知的或共知的陈述时，可用if来代替： ~ As／Since／Seeing that／If you don’t like Bill，why did you invite him 既然／如果你不喜欢比尔，你为什么邀请了他 注意：if so的用法： —I hope Bill won’t come． —If so（＝If you hope he won’t come），why did you invite him —我希望比尔别来。 —如果这样（=如果你希望他不来），你为什么邀请了他 关于if＋so／not，参见第347节。 ~ B 结果从句由because或as引导： The fuse blew because we had overloaded the circuit． 保险丝烧断了，因为我们使线路超载了。 He was angry because we were late． 他生气是因为我们来晚了。 As it froze hard that night there was ice everywhere next day． 因为那天晚上冷得厉害，所以第二天到处都是冰。 ~ As the soup was very salty we were thirsty afterwards． 因为这汤很咸，后来我们渴得厉害。
高中原因状语从句及练习(含答案)教学提纲
2.原因状语从句 原因状语从句表示主句中动作或状态发生的原因或理由, 可位于主句之前,之后或插在主句中间。主句表示结果, 从句表示原因, 主要由because, as, since, for, seeing ( that), considering ( that), now (that), in that, not ... because 等引导。 1) because“因为’’, as‘‘由于”, since “既然”, for“因为” because意为“因为”, 表示直接的原因或理由, 着重点在从句, 用于回答why,语气最强。 He is absent today because he is ill. 当主句为否定句时, 从句because须用逗号与主句隔开, 否则容易引起歧义。 I didn’t visit him, because I wanted to borrow some books. 我没去拜访他, 因为我想借几本书。 I didn’t visit him because I wanted to borrow some books. 我不是因为想借几本书才去拜访他的。 as意为“由于”, 表示十分明显的原因, 所引导的从句常位于主句之前, 有时也可位于主句之后, 一般说明因果关系, 着重点在主句, 原因或理由只是附带说明, 不用于回答why的问题, 常用于口语。 As it is snowing, we shall not go to the park. As this book is written in simple English, it is suitable for beginners. since意为“既然, 由于”时表示对方已知的、无须加以说明的既成事实的理由, 只是一个附带说明。since = as it is the fact that ...全句中心在主句。如从句表示的原因不是确定的事实, 就不能用since,通常用because. Since everybody is here, let’s begin our discussion. Since you seem to know them, why don’t you introduce me to them? for是一个并列连词, 由for连结的表原因的句子常看作并列句, 它只提供一些补充说明或对前一个分句加以解释, 不可前置。与because 不同的是:because引导的从句位置可前可后, 而for引导的分句只能后置, 且往往须用逗号或分号与前一个分句分开。 I didn’t go to see him, for a heavy snow was falling. The days were short, for it was now December. 有时, for引起的从句并不表示原因, 而是表示一种推断或解释, 而because则不能。 Someone in the house must be ill, for a doctor has just come out. He couldn’t have seen me, for I was not there. 一、填入恰当的连词 1. I didn’t go to school yesterday _________ I was ill. 2. ________ everybody is here, let’s begin our meeting. 3. ________ you are in poor health, you should not stay up late. 4. I asked her to stay to tea, ________ I had something to tell her. 5. ________ all the passengers are here, why don’t we start at once? 6. Bill won’t make any progress ________ he doesn’t study harder than before.
(完整)高中状语从句讲解
语法专题复习（四）状语从句讲解 状语从句指句子用作状语时，起副词作用的句子。它可以修饰谓语、 非谓语动词、定语、状语或整个句子。 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．I fell asleep when he was doing his exercises .他正作练习时我睡着了。（时间状语从句） 3．She always singsa s she walks . 她总是一边走一边唱。（时间状语从句） 4．I waited until he had finished his work . 我等到他做完活。（时间状语 从句） 5．It was not long before he told me about this affair . 不久，他就告诉我 这件事。（时间状语从句） 6．He has worked very hards ince he entered the factory 自从他进厂，工 作一直很努力。（时间状语从句） 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 ins tant, immediately , directly, no sooner ?than, hardly ?when, scarcely ?wh en
原因状语从句-练习题及答案
原因状语从句练习题: 一、填入恰当的连词 1. I didn’t go to school yesterday _________ I was ill. 2. ________ everybody is here, let’s begin our meeting. 3. ________ you are in poor health, you should not stay up late. 4. I asked her to stay to tea, ________ I had something to tell her. 5. ________ all the passengers are here, why don’t we start at once? 6. Bill won’t make any progress ________ he doesn’t study harder than before. 7. He might have gone to bed, ________ the light went out. 二、改写句子,保持句意不变 1) The ship changed its course because there was a storm. The ship changed its course _______ _______ _______ _______. 2) Because he was ill, he didn’t go to school. He was ill, _______ he didn’t go to school. 3) He couldn't walk because his leg was broken. He couldn't walk ______ ______ his ______ leg. 4) I came back because it was raining heavily. I came back ______ ______ the ______ rain. 练习答案： 一、1.because 2.Since 3.As 4.because 5.Since 6.because 7.for
高中英语状语从句讲解
高中状语从句讲解+练习 状语通常由副词、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） 状语从句主要用来修饰主句或主句的谓语。一般可分为九大类，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, the instant, immediately , directly, every time, the day，no sooner …than, hardly …when, scarcely …when （1）Tell him I need to see him the minute he arrives. 他一到就告诉他我要见他。 （2）The children ran away from the orchard(果园) the moment they saw the guard. The moment he saw me, he ran away. 他一看见我，就跑了。 He said he’d call you the moment he got home. 他说他一到家就给你打电话 （3）The instant I saw him, I knew he was the man from the restaurant. （4）Immediately you begin to speak, he gives you his full attention.你只要一开始说话，他就全神贯注地听。 （5）My sister came directly she got my message. 我妹妹一收到我的信息就来了。 （6）Every time I listen to your advice, I get into trouble. （7）no sooner... than... ，"一...就..." ，引导时间状语从句,主句用过去完成时,"than"后面的从句用一般过去时.(从这里可以知道,no sooner后面是主句;than后面是从句) 例: I had no sooner reached home than it began to rain. 我一到家天就下起雨来 No sooner ...than...常放在句首,表示强调.这时主句要倒装. 例:No sooner had I reached home than it began to rain. （8）He had hardly sat down when the telephone rang.他刚坐下电话就响了。 He had scarcely sat down when there was a knock at the door. 他刚坐下就有人敲门 另外，如果把hardly放于句首，主句要用倒装结构。如： Hardly had I finished eating when he came in. 我刚吃完他就进来了。 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. She was standing exactly where you are standing now那时他就站在你现在站的地方。 Stay where you are.呆在原地别动。 Wherever you go, you should work hard. Sit anywhere you like 随便坐吧 3．原因状语从句
高中英语状语从句讲解及练习
状语从句 状语从句在句中作状语,可分为:时间、条件、让步、原因、目的、结果、比较、地点、方式状语从句。 一、时间状语从句 引导时间状语从句的连词有:when, as, while, until, not…until, before, after, since, the minute, the moment, each( every, next, the first time等。时间状语从句中一般用一般现在时或一般过去时。 1.When , while, as都可解释为“当```的时候”但侧重点有所不同。 1When Eg: When I arrived home , I had a little rest. 注意点: when 从句的主语与主句主语相同,谓语动词是be 动词时,从句主语和be可以省略。 Eg: When (she was walking along the street, she met her class teacher. 2As As 除了表示“当```的时候”,还可表示为“一面```一面”,“随着” Eg: He sang as he danced.(一面```一面 You will grow wiser as you grow older.(随着 3While表示“当```的时候”强调主句的动作和从句的动作同时发生,从句一般 用进行时,从句动词必须是延续性动词。
Eg: While we were working, they were having a rest. While (they were having a discussion, they got very confused. 注意点: while 有对比的含义,解释为“然而”。 eg: I prefer black tee, while he likes coffee. 2.until, not…until表示“直到```才”,在肯定句中主句常用延续性动词;在否定句中主句常用短暂性动词。 肯定句:I waited until midnight. 否定句:I did not leave until midnight. 注意点: 1not until…在句首,主句用倒装 eg: Not until you had explained how did I manage to do it. 2 It is not until…that…引导的强调句 It was not until it was dark that he came back. 3. the minute, the moment, each time都可表示“一```就```” eg: The worker recognized the type of the machine the moment he saw it. 注意点: the minute, the moment, each ( every, next, the first time作连词不和when 连用。 4.Hardly/scarcely…when, no sooner…than, as soon as表示为“一```就```”
原因状语从句
二、原因状语从句：、定义：1在句中用来说明主句原因的句子叫原因状语从句。: 、常用引导词2now (that)becauseas since(既然(既然),) (因为), ), (由于、时态：3原因状语从句一般都是根据实际情况选用适当的时态。通常是主过从过，主现从现。4、because, since和as的区别： 1) because引导的原因状语从句一般放于主句的后面，because从句位于句首时要用逗号分开，放在句末时，可不用逗号分开。because表示直接原因，语气最强，最适合回答why引导的疑问句。because of 也表示原因，但它后面不接从句, 只能接名词, 代词或动名词。注意：because 和so 不可同时出现在一个句子里。①I do it because I like it. = I like it so I do it. ②We went by bus because it was cheaper. = It was cheaper so we went by bus. ③He can't go to school because of his illness. 2) since引导的原因状语从句一般放于主句之前表示已知的、显然的理由(通常被翻译成“既然”= 弱。语气比because 较为正式，now that )，①Since you are free today, you had better help me with my mathematics. ②Since you don't trust him, you should not employ him. ③Now (that) you are grown up, you should not rely on your parents. 3) as引导原因状语从句时表示附带说明的“双方已知的原因”，含有对比说明的意味，语气 比since弱，较为正式，位置较为灵活(常放于主句之前)。 ①As it is raining, you'd better take a taxi. ②As you are tired, you had better rest. ③I went to bed early, as I was exhausted. 4) for引导的是并列句表示原因但并不说明主句行为发生的直接原因，只提供一些辅助性的补 充说明，for引导的并列句只能放于主句之后并且必须用逗号将其与主句隔开。 ①He could not have seen me, for I was not there. ②He seldom goes out now, for he is very old. 5. 三、目的状语从句： 1、定义：在句中用来作目的状语的句子叫目的状语从句。． : 2、常用引导词in order that so that )以便(以便),(、时态：3目的状语从句一般都是根据实际情况选用适当的时态。也通常是主过从过，主现从现。、目的状语
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
高中英语状语从句讲解及配 套练习
状语从句 状语从句在句中相当于副词做状语, 又叫副词性从句。状语从句分为时间状语从句、条件状语从句、地点状语从句、原因状语从句、目的状语从句、让步状语从句、结果状语从句和 比较状语从句。掌握状语从句应当从引导词入手，注意引导词的词义,引导状语从句的引导词都有词义，所以，了解引导词的意思尤为重要。引导词按意义分为九类: 1）时间 when , as , while , till , until , before , after , since 2）地点 where 3）原因 because , as , since , now that 4）条件 if , unless , once . so （as） long as . in case 5）让步 though , whatever （--ever ） as , even though , even if 6）目的 so that , in order that 7）结果 so ... that 8）比较 than , as .. as 9）方式 as , as if 一、时间状语从句引导时间状语从句的连接词除上述外还有： 1）till, not … until …, until, before, since Don’t get off the bus until it has stopped. He waited for his father until（till）it was twelve o’clock. It will be five years before he returns from England. 常用句型：It is/was/will be …before…要过多久才…… It isn’t /wasn’t/won’t be…before…没有多久就…… It will be another five days before we finish this task. It is not long before I forgot it all. 2）hardly / scarcely … when, no sooner … than, as soon as, once表示“一……就” 3）directly, immediately, the moment, the minute that… 一……就 He made for the door directly he heard the knock. 4）each time, every time, by the time（到……为止） Each time he came to my city, he would call on me. 注意：表示未来情况，主句用将来时，从句用现在时。 二、让步状语从句 （1）although与though可以引导让步状语从句，不能与but连用，但可以与yet连用。 Although they are poor,（yet）they are warm-hearted. （2）even if或even though引导让步状语从句，表示“即使”，“纵然”，用来使人注意下文所强调内容的性质。
第五讲-高中英语状语从句详解
状语从句 一：状语从句的定义、功能、分类 定义：在复合句中作状语的从句 功能：状语从句在主从复合句中修饰主句中的动词，形容词或副词，或整个主句 分类：按意义可分为时间、地点、原因、目的、结果、条件、方式、比较、让步等状语从句。位置：从句的位置放在句首，也可放在句末。放在句首时，从句后面常用一个逗号，放在句末时，从句前一般不用逗号。 二：考点与难点 1、各种从属连词的含义及用法比较； 2、no matter wh- 与wh-ever 引导的从句的区别； 3、状语从句的时态问题； 4、状语从句倒装及省略； 5、状语从句与其它从句的区别。三：九种常见状语从句用法 1. 时间状语从句 引导时间状语从句的从属连词 1）.基本类：before、after、when、while、as、since、till、until、once, as soon as, etc. 2）. 名词类 the moment ,the minute, the second, the instant,etc. (一…就…); every time, each time, the last time, the first time, the day, the year, the morning etc. 3）. 副词类：immediately, directly, instantly, etc. (一...就...) 4）.句型类：no sooner…than…, hardly/scarcely…when…, etc. (一…就…) 注意：1. when, as, while When ①when表示时间点时，从句中用短暂性动词；表示时间段时，用持续性动词。Eg:. When they were still talking and laughing, the teacher came in. （when表示段时间） 2). He waved a hello when he saw her.（when表示点时间） ②. 可用作并列连词，其意义为“这时,突然”，相当于and then suddenly。常用于下列句式： be doing / be about to do sth/ be on the point of doing / have/had done + when Eg.1). I was about to go out when the door bell rang. 2). One evening I was having my dinner when an unexpected friend knocked my door. ③. 还可以表示原因,意思是“既然”，相当于since; considering that Eg. 1). It was foolish of you to take a taxi when you could easily walk there in five minutes . 2). How can he get good grades when he won't study? While ①while通常表示一段时间，从句中常用持续性动词作谓语。 Eg: Strike while the iron is hot. 趁热打铁。 ②while有时可以作并列连词，表示对比，可译成“然而……”。 Eg: 1). I am fond of English while he likes maths. ③while有时可引导让步状语从句，意思是“虽然”。 Eg. While they love the children, they are strict with them. As ①表示一边……一边……，强调从句和主句中两个动作交替进行或同步进行。 eg: She is singing a song as she took a bath. ②as表示随着 eg: As time goes on, it's getting warmer and warmer. 2. till, until和not…until 1）until /till用于肯定句时，表示直到…为止，主句必须为持续性动词。