原因状语从句
原因状语从句表原因，引导原因状语从句的从属连词主要的有because, as, since, for ，seeing (that), now (that), considering (that) ，in that 等。以下逐一介绍常见的原因状语从句的引导词：
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，例如：The country
is not strong because it is large. 国强不在大。
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：seei ng (that), now (that) , con sideri ng (that) , in that 这几个词汇与si nee 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) everybody 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。
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. 既然累了，你最好休息一下。
I went to bed early, as I was exhausted. 我睡得早，因为我筋疲力尽了。
for 引导的原因状语从句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 引导的原因状语从句只能放于主句之后并且必须用逗号将其与主句隔开。
例如：He could not have seen me, for I was not there. 他不可能见过我，因为我不在那里。比较：
because, since, as 禾口for
because语势最强，表示不知道的原因用because，即说话人认为听话人不知道。因此because
从句是全句最重要的部分，通常被放置于主语之后。当原因是显而易见的或已为人们所知，
就用as或since。
I didn't go, because I was afraid.
Since /As the weather is so bad, we have to delay our journey.
for虽然表示不知道的原因，但因语气比because弱得多，是可说可不说的话，只能位于主语
之后，这时，for 是并列连词，如果不是因果关系，而是对前面主语内容加以解释或推断时，
只能用for。
He is abse nt today, because / for he is ill.
He must be ill, for he is abse nt today.
注1:除以上提到的大家比较熟悉的引导原因状语从句的从属连词外，when有时也可引导原
因状语从句（when表示"既然”）
I won ' t tell you when you won ' t listen.既然你不想听，我就不告诉你了。
注2: because习惯上不与so连用
汉语习惯上说“因为…所以…”，但英语习惯上却不能将so与because连用：
因为下雨，所以我们呆在家里。
正: Because it was raining, we stayed at home. / It was raining, so we stayed at home.
误：Because it was raining, so we stayed at home.
注3：because从句与because of短语的转换
Because引导的原因状语从句有时可与because of短语转换，because of后加的原因可以为好
或坏但最正规的还是because
He can' t come because he is ill. / He can ' t come because of his illness. 他因病不能来。
I said nothing about it because his wife was there. / I said nothing about it because of his wife ' s being there.因为他妻子在那儿，我对此事只字未提。
［考题1］ ___ y ou ' ve got a chanee, you might as well make full use of it.
A. Now that
B. After
C. Although
D. As soo n as
［答案］A
［解析］主句与从句之间存在因果关系，且“ you've got a cha nee”表示一个显而易见的原因，
因此应选用表原因的now that。
［考题2］ He found it increasingly difficult to read, ___ his eyesight was beginning to fail.
A. and
B. for
C. but
D. or
［答案］B
［解析］“his eyesight was beginning to fail ” 是“he found it increasingly difficult to read ” 的原因，因此本题应选用可以表示原因的连词for引导原因状语从句。
［考题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
［答案］D
［解析］下划线处之后的句子补充说明“ a man cannot smile like a child ”的原因，应选用for
表原因。
原因状语从句练习题
I.在下列句子的空格中填入适当的连词（每空一词）：
1.________ Jane was the eldest, she looked after the others.
2. __________ you know it, I won't repeat it.
3.He did n't hear the knock at the door ____________ he was liste ning to the radio.
4.—Why did n't you come?
—___________ my father would n't let me.
5._____________________ everybody is here, let's beg in the discussi on.
II.句型转换（把下列复合句转换为简单句）:
I）把从句简化为because of结构：
1.He lay in bed because he had caught a bad cold.
2.He could n't walk because his leg was broke n.
3.I came back because it was raining.
4.They stayed in because the weather was bad.
5.We did n't get home till after midni ght because we had missed the bus.
II）把从句简化为分词短语：
6.As he is a warmhearted man, he is always ready to help others.
7.As he saw n obody in, he decided to leave a no te.
8.Because he did n't un dersta nd its meaning, he asked the teacher to expla in the word.
9.As he had lived in Beijing for many years, he knew the city very well.
10.As I have not see n the film, I can't tell you what I think of it.
11.As they were in flue need by Lei Fen g's example, they did a lot of good deeds.
12.As he was brought up in the coun tryside, he was not used to the city life.
III）把从句简化为形容短语：
13.Because he was afraid of being late for class, Bob ran to school as fast as he could.
14.As he was full of ear, Crusoe left the cave in a hurry.
15.As he was anxious for a quick decision, the chairman called for a vote.
Key:
1. 1. As
2. Since
3. because
4. Because
5. Now that/See ing that
II. 1. He lay in bed because of a bad cold.
2.He could n't walk because of a/his his broke n leg.
3.I came back because of the rain.
4.They stayed in because of the bad weather.
5.We did n't get home till after midni ght because of miss ing the bus.
6.Being a warm-hearted man, he is always ready to help others.
7.Seeing no body in, he decided to leave a no te.
8.Not un dersta nding its meaning, he asked the teacher to expla in the word.
9.Having lived in Beijing for many years, he knew the city very well.
10.Not havi ng see n the film, I can't tell you what I thi nk of it.
11.In flue need by Lei Fen g's example, they did a lot of good deeds.
12.Brought up in the coun tryside, he was not used to the city life.
13.Afraid of being late for class, Bob ran to school as fast as he could.
14.Full of ear, Crusoe left the cave in a hurry.
15.Anxious for a quick decision, the chairman called for a vote.
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。
2019英语四级语法精讲：原因状语从句 原因状语从句 连接词：because，since，as，for，now that，in that，owing to，due to，thanks to，because of，as a result of; 比较：because，since，as和for 1)because语势，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。 I didn't go, because I was afraid. Since /As the weather is so bad, we have to delay our journey. 2)由because引导的从句如果放在句末，且前面有逗号，则能够用for 来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能 用for。 He is absent today, because / for he is ill. He must be ill, for he is absent today. now that ：既然; in that ：因为，通常只能放在句中，强调重要的，的的原因; eg：Now that this semester is finished, I am going to rest a few days and take a trip. Human beings are different from animals in that human can speak and think. owing to, due to, thanks to, because of , as a result of等短 语后面只能接词或短语，不能接从句。
4种 句动作同时发生或从句动作先于主句。(既可引导时间点又可引导时间段) I was thin when I was a child. The film had been on when w e arrived. 2. be about to do … when … be doing …when… be on o ne’s way … when … be on the point of doing …when… had done … when… “ 在那时”“这时”,表示某件事正在发生或刚刚发生，另一动作同时发生 The telephone was ringing when I got home. I was about to go to bed when he came back. W e w ere just on the point of calling you up when you came in. 3. When 还以引导条件状语从句相当于if How can I explain it to you when / if you won’t listen. How can you get good records when you don’t study? When you read it again, the meaning will become clearer to you. 4.When还可引导原因状语从句，“既然” It was foolish of you to take a taxi when you could easily walk there in five minutes. 3种 1. 必须引导持续性动作，强调在一段时间内，主句和从句动作同时发生。 My mother was cooking while I was doing my homework. Please don’t talk so loud while others are working. 2. “然而” 表示轻微转折, 两者对比。 I like watching TV while he likes reading. 3.引导让步状语从句“ 虽然，尽管” While I admit his good points, I can see his shortcomings. 1 As I left the house , I forgot the key.我离开家时，忘记了带钥匙。 As 引导时间状语从句，强调动作并行发生，不指先后。 2. As I get older, I get more optimistic. 随着年龄的增长，我变得更加乐观“随着” 表示时间的推移。 3. He hurried home, looking behind as he w ent. 他匆匆忙忙回家，边走边往后看。“一边…一边…” 4 As he was going out, it began to rain. 当他出去时开始下雨了强调两个动作紧接着发生。 5. As a boy (When he was a boy), he was hopeless at English.
咼中英语状语从句 定义: 在句中作状语的从句是状语从句，修饰主句中的动词、形容词或副词等.状语从句由从属连词引导，从属连词在句中不充当句子成分，只起连接作用，状语从句放在句首时，要用逗号，放在句 尾时不用. 分类 根据意义上的不同，状语从句可分为：①时间状语从句②地点状语从句③原因状语从句④ 目的状语从句⑤条件状语从句⑥结果状语从句⑦让步状语从句⑧方式状语从句⑨比较 状语从句三、时间状语从句主句是一般将来时，时间状语从句用一般现在时表将来；主句是—过去将来时，从句用一般过去时表示过去将来时；主句是一般过去时忆：“主将 ，从句用一般过去时.记从现” (一)引导时间状语从句的连词有：As，whe n (whe never)，before，after，as soo n as，un til (till)，since，every time，once. | （二）、具体应用1）“while ”主、从句动作或状态同时发生.用while引导的从句用延续性 动词，常表示较长的时间或一个过程.记忆：While 后用进行时.While we were having supper， all the lights went out. Please kee p quiet while others are study in g」 While I was writing letters last night，he was watching TV. 2 ）When 表示“就在”的时候"， while 意为反而，可是，表示转折.One evening Beethoven was walking in a street，when he sudde niy stopped outside a little house. 3）When ever无论什么时候，随时 1.When ever some one throws in some rubbish，the truck p roduees a pi eee of music. 每当有人扔进一些垃圾时，它（汽车）就放一段音乐 2.When ever we' re in trouble，they will help us. 3.I go to the theatre, whe never I am free. https://www.doczj.com/doc/2c7793615.html,e and see me whe never you want to.你随时来看我 4) till和until(表示"直到” ”)句首多用until | 1在肯定句中表示“直到”为止”，主句谓语动词要用延续性动词 I was wait ing un til/till he arrived. 2、在否定句中表示“直到，，才”主句谓语动词常用终止性动词，这时until和till常被before 替换. I did n' t leave till/un til she came back. 5) si nee:主句用完成时，从句用一般过去时，si nee引导的从句间或可用现在完成时 It is two years since I have studied En glish. 1.We have known each other si nee we were childre n. 2.We have bee n friends （ever sin ce） since we met at school. 3.It is ”（一段时间）+since+—般过去时态句子 It is two years since my sister married. I
在复合句中，由从句表示的状语叫做状语从句。它可以用来修饰主语中的动词.形容词.副词等。根据它表达的意思，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，比较状语从句，目的状语从句，结果状语从句和让步状语从句等。由连接词if或unless引导的状语从句叫做条件状语从句。在英文中，条件是指某一件事情实现之后（状语从句中的动作），其它事情（主句中的动作）才能发生，通常译作“假如”。（注意：在含有条件状语从句的复合句中，表示将来时态，主句是一般将来时态，从句要用一般现在时[主将从现原则]) [编辑本段] 条件状语从句的有关知识 语法引导条件状语从句最常用的连词是if,由if引导的条件状语从句表示在某种条件下某事很可能发生。如: If you ask him, he will help you.如果你请他帮忙,他会帮你的。 If you fail in the exam, you will let him down.如果你考试不及格,你会让他失望的。 另外,if从句还表示不可实现的条件或根本不可能存在的条件,也就是一种虚拟的条件或假设,从句多用一般过去时或过去完成时。如: If I were you, I would invite him to the party.如果我是你,我会邀请他参加聚会。 I would have arrived much earlier if I had not been caught in the traffic.如果没有堵车,我会到的早一点儿。 那么,除了if之外,是否还有其他连词也可以引导条件状语从句呢?回答是肯定的,不仅有,还有很多。这些词由于出现的频率较小,且用法较复杂一些,所以不如if为大家所熟知罢了。下面就这些词的用法以例句的形式进行一下简单总结。 1、unless conj.除非,若不,除非在……的时候 You will fail to arrive there in time unless you start earlier.如果你不早点动身,你就不能及时赶到那儿。 Unless it rains, the game will be played.除非下雨,比赛将照常进行。 2、on condition(that)...在……条件下,如果on condition (that)...引导的条件从句是主句事件发生的前提条件或唯一条件。 I can tell you the truth on condition that you promise to keep a secret.我可以告诉你真相,条件是你答应保守秘密。 You can go swimming on condition (that) you don't go too far from the river bank.你只有在不远离河岸的条件下才可以下水游泳。 3、supposing conj.如果,假如supposing引导的条件从句表示一种假设条件。 Supposing it rains, shall we continue the sports meeting?倘若下雨,我们的运动会还要继续举行吗?
语法讲解时间状语从句的用法解析及练习 状语从句在复合句中作状语，其位置较灵活，可以在主句之前、之后或中间(放在句首时状语从句后面常用逗号，放在句末时状语从句前面往往不用逗号)。根据状语从句的含义，状语从句主要分为时间状语从句、地点状语从句、原因状语从句、目的状语从句、方式状语从句、结果状语从句、条件状语从句、让步状语从句等八种。掌握以上各种状语从句的关键在于把握其相应的引导词。以下是对时间状语从句的基本用法进行小结，希望可以帮助到同学们有一更深的理解。 时间状语从句的引导词 when, before, after, as, while, till/until, since，whenever 时间状语从句的用法 时间状语从句的引导词所表示的意思不尽相同，要注意把握不同的时间状语从句的引导词所表示的不同时间关系，以及它在具体句子中对应的对应时态、语态等问题。 1. when、as、while引导的时间状语从句分析： (1) when引导时间状语从句时表示“当……的时候”，when既可以指时间段也可指时间点，从句中既可用延续性动词又可用非延续性动词，且动作既可和主句的动作同时发生又可在主句的动作之前或之后发生。 注意体会如下例句：I’ll call you when I get there. 我一到那里就给你打电话。// When the wind blows, all the doors rattle. 只要风一吹，这门就吱嘎作响。// He stopped trying, when he might have succeeded next time. 他不再试了，其实他可能下一次就成功。// When I came home my wife was cooking dinner. 我回家时，妻子在做晚饭。 如果when引导的时间状语从句的主语与主句主语相同，而从句的谓语又是be动词时，那么从句中的主语和be可以省略;当when引导的时间状语从句的主语与主句主语相同时，往往还可以用“when+分词”的形式替代该状语从句。例如：When (you are) in trouble, ask her for help. 当你遭遇麻烦的时候去向她求助。// When I came into the room (=When coming into the room), I found him lying there asleep. 当我进入房间的时候，我发现他躺在那儿睡着了。 (2) while引导时间状语从句时表示“当……的时候”，它强调主句的动作与从句的动作同时持续地进行，用于这一用法时while引导的时间状语从句和主句中的谓语动词必须是延续性动词，或者主句的动作发生在从句动作的进行过程中，主句中的谓语动词通常是非延续性动词，例如：Study while you study; play while you play. 该学习的时候就学习，该玩的时候就玩。// I met her while I was at school. 当我在学校的时候我遇见了她。 (3) as引导时间状语从句时表示“当……时，一边……一边……”，侧重表示两个动作同时发生(包括一个主语同时进行两个动作)，或者一种动作随着另一种动作的变化而变化。例如：He jumps as he goes along. 他边走边跳。// I slipped on the ice as I ran home. 我跑回家时在冰上滑了一跤。// I saw him as he was getting off the bus. 正当他下公共汽车时, 我看见了他。// As the wind rose the noise increased. 刮风的时候噪声增大。
地点状语从句 常用连词：where 特殊连词：wherever (在……的任何地方), anywhere, everywhere 【点拨】地点状语从句与定语从句的区别：where引导定语从句时，从句前应有一个表示地点的名词作先行词；而状语从句前则无需先行词。 Go back where you came from.(where引导地点状语从句)你从哪儿来回哪儿去。Go back to the village where you came from. (where引导定语从句，修饰village)回到你来的那个村子里去。 时间状语从句 常用连词：when, as, while, as soon as, before, after, since , till, until, whenever (每当，一……就……) 特殊连词：the minute, the moment, the second, every time, the day, the instant, immediately, directly, no sooner ... than, hardly ... when, scarcely ... when 1．由when, while, as引导的时间状语从句when，while，as都有“当……时候”的意思。 1) when引导的从句的谓语动词既可以是延续性动词，又可以是瞬间性动词，并且when有时表示“就在那时”，相当于and at that time。 It was raining when we arrived. (指时间点)当我们到达的时候，天正在下雨。 When we were at school, we went to the library every day. (在一段时间内) 我们在学校上学的时候，每天都去图书馆。 We were about to leave when he came in.我们刚要离开，就在那时他进来了。 2) while引导的从句的谓语动词必须是延续性的，并强调主句和从句的动作同时发生(或者相对应)，此外，while有时还可以表示对比。 I like playing football while you like playing basketball. 我喜欢踢足球，而你喜欢打篮球。(对比) He fell asleep while/when reading.看书的时候，他睡着了。 Strike while the iron is hot. (用as或when不可以，这里的while意思是“趁……”) 趁热打铁。 3) as表示“一边……一边”，as引导的句子的动词是延续性的动词，一般用于主句和从句动作同时发生；as也可以强调一先一后。 We always sing as we walk.我们总是边走边唱。(as表示“一边……一边”) Our headmaster laughed as she spoke.我们的校长边谈边笑。 2．由before“在……之前”和after“在……之后”引导的时间状语从句。 It will be four days before they come back．他们要过四天才能回来。 My father had left for Canada just before the letter arrived. 我父亲恰好在信到之前去加拿大了。 After you think it over, please let me know what you decide. 你仔细考虑过以后，请告诉我你是怎样决定的。
（一）状语从句概述 定义状语从句用作状语，是起副词作用的句子。 位置状语从句可以放在主句之前，也可以放在主句之后，时间、条件、原因和让步状语从句放在句首时需要用 逗号和主句隔开。 分类根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比较等状语从句。 作用它可以修饰谓语、非谓语动词、定语、状语和整个句子。 （二）状语从句详解 1. 时间状语从句 引导词用法示例 when 意为“当…的时候”。When 引导从句的谓语动词可以 是延续性动词，也可以是 瞬间动词。并且when有 时表示“就在那时”A liar is not believed when he speaks the truth.说谎者讲真话时也没有人相信。When he arrives, I’ll call you. When you laugh and smile, your body relaxes. while 意为“在…的时候，在…的 同时”。While引导从句的 谓语动词必须是延续性While I was standing at the window, I saw several boys running along the street.
的，发生时间较长，并强调主句和从句的动作同时发生（或者相对应）。While 有时还可以表示对比。While John was watching TV, his wife was cooking. as 意为“一边…一边…”。As 引导的动作是延续性的， 发生时间较短，一般用于 主句和从句动作同时发 生；as也可以强调一前一 后。The writer was angry as he was travelling on a train to London because someone had invaded his “space”. He smiled as he stood up. after 意为“在…之后”。表示主句 动作发生在从句动作之 后。主句与从句的动作时 间关系与before引导的从 句相反。With many hungry visitors waiting, don’t stay too long at your table after you have finished. If an early exit is necessary, you can leave after a scene is over. before 意为“在…之前”。引导的从 句不用否定形式的谓语， 并且当before引导的从句 位于主句之后，有时译成 “就，才”。当主句用将来时，You can’t watch TV before you finish your homework. Before it ended, the theatre was almost empty. My father had left for Canada
掌门1对1教育高中英语 时间、原因、条件状语从句 一．when, while 和as 引导时间状语从句的区别用法（一）when 的用法when 从句的A事件，相当于另一个事件B发生的时间点。（也就是说，when 从句的重点不在动作本身发生的状态，而只是把它作为一个时间点，）所以when 多数情况下用的是一般过去时，则不用正在进行时。（口头练习） When I got to the airport, the guests had left. Why do you want a new job when you have got such a good one already? (二)while 的用法 while 从句的侧重点在于描述动作正在发生的状态，（它的意思是：当while 事件正在发生的时候，另一件事如何如何。）所以，while 从句一般用的是正在进行时。而另一件事的状态根据具体情况而定。（口头练习） 1. While my wife was reading the newspaper, I was watching TV. 2. While Jim was mending his bike, Lin T ao came to see him. 从时间的角度来看，while 表示的是一段时间，是一个过程。 趁热打铁。Strike while the iron is hot.（这句话中，是说趁着铁是热的这段时间，赶紧打铁。如果换成when 意思就变了，相当于说铁只热了一下，打一下，然后铁就冷了。这显然不符合文意。） (三)as 的用法 as 从句表示的也是一件事情正在发生，另一件事也正在进行当中。as 从句用的一般不用正在进行时，而只是一般过去时。可以翻译成“边……边……”。（口头练习） As my mother sang those old songs, tears ran down her cheeks. The students took notes as they listened. as 表达的事件，往往只是主句动作发生的背景或条件时，as 只是一个次要的时间说明，常常翻译成“随着……”之意。 1. As the time went on，the weather got worse. 随着时间的推移，气候更加糟糕。 2. The atmosphere gets thinner and thinner as the height increases. 随着高度的增加，大气越来越稀薄。（少数情况下，如果强调动作正在发生，as 从句也可以用正在进行时。The sad mother sat on the roadside, shouting as she was crying. 伤心的妈妈坐在路边，边哭边叫喊。）
状语从句的讲解 就是用一句话作状语分为：时间，地点，方式，原因，结果，条件，让步，目的，比较 一、时间状语从句 第一次见到你 一见到你我就喜欢上了你 直到见到你 五岁时见到你 When, as, while, before, after, since, till/until, as soon as no sooner…than…scarcely…when…hardly…when…the minute the second the instant the moment by the time 截止immediately instantly directly each time every time next time the first time on doing sth when while 当…时 as 1. when 1）当…时/ 延续性动词短暂性动词都可用 2）这时/ 3）届时、到时 I was watching TV when my cellphone suddenly rang这时 When I was five years old I could speak five languages The wet weather will continue tommorow when a cold front is expected to arrive届时到时 注意：时间状语从句中动作发生有前后时先发生的用过去完成时 When my mother came back I had already gone to bed. 2. while 1）从句动词延续性 2）同时发生 3）对比的意味“然而” 4）趁着 He taught himself while he worked in a bank 延续性动词当他在银行上班时 While we were working they were having a rest.对比 While they were having a discussion , they got very confused.同时 I want the girls to experience that while they are young趁着她们还年轻我想让姑娘们体验一下对比：I prefer black tea, while he likes coffee 3.As 1)当…时 2）一边...一边 3)随着 As the children walked along the street, they sang happily.当孩子们 He sang as he danced一边一边 You will grow wiser as you grow older随着 4.before 1）在…前 2）前加一段时间直到…才… 3)还没来得及 4)要过…时间才 I’ll be back before you leave It may be many years before we meet again 可能要过很多年我们才能见面
时间状语从句和原因状语从句 I. 选最佳答案 1. I learnt her hard-working and kind _______ I got to know her in the bookstore. A. first time B. for the first time C. the first time D. by the first time 2. It was not _______ he took off his dark glass I realize who he was. A. when; that B. until; when C. when; then D. until; that 3.It was 19 years _______ Mandela, the former president of South Africa, was set free from prison. A. before B. since C. until D. that 4. _______ had the bell rung _______ the students took their seats. A. Hardly; when B. No sooner; when C. Hardly; than D. No sooner; then 5. We walked along the beach for nearly three hours _______ we saw a boat on the sea. A. when B. before C. unless D. until 6. The two brothers quarreled and quarreled _______ they felt sleepy and went to bed. A. when B. before C. unless D. until 7. —What was the party like? —Wonderful. It’s years _______ I enjoyed myself so much. A. after B. before C. when D. since 8. It was quite a long time _______ I made it out what had happened. A. after B. before C. when D. since 9. _______, he went upstairs to sleep without supper. A. He was tired B. As he was tired C. Tired as was he D. As tired as he was 10. We sent the injured to the First-aid Centre_______ the accident happened. A. immediately B. hurriedly C. quickly D. shortly
状语从句 状语从句修饰主句/主句的谓语。一般有九大类：表示时间、地点、原因、目的、结果、条件、让步、比较和方式等。 时间状语从句 1. 用when引导：when表示“当……时候”。如： Things were different when I was a child. 我小时候情况与现在不同。 People breathe more slowly when they are asleep. 人睡觉时呼吸比较缓慢。 2. 用while引导：while表示“当……时候”。如： We must strike while the iron is hot. 我们要趁热打铁。 I went swimming while the others played tennis. 我去游泳，其余的人都打网球去了。 注意：while 所引导的时间状语从句中谓语动词必须是持续性的，不能是短暂性的。 3. 用as引导：as表示“当……时候”“随着”。如： He dropped the glass as he stood up. 他站起来时，把杯子摔了。 We get wiser as we get old. 随着年岁的增长，我们也变得聪明些了。 4. 用before引导：before表示“在……之前”。如： Turn off the lights before you go to bed. 睡觉前要关灯。 Before he went to university he was a worker. 上大学之前他是工人。 5. 用after引导：after表示“在……之后”。如： I will tell you after they leave. 他们走我再告诉你。 After you finish the letter show it to me．信写完后给我看看。 6. 用until / till引导：until / till表示“直到……”。如： He waited until she was about to leave. 他等着一直到她准备离开。 I watched him until he disappeared in the distance. 我瞧着他直到他在远处消失。 这类句型的主句动词通常只能是延续性动词，不能是终止性动词。但是，在否定句中，主句动词可以是终止性动词，此时构成not…ntil [till]…句式，意为“直到……才……”。如：
状语从句的翻译 状语从句内容丰富，涉及面广，可以用来表示时间、原因、条件、让步、目的、结果、等意义。英语状语从句的翻译，一般比较容易处理，通常可以直接翻译。但是这里我们所要讨论的是，在汉语译文中，要如何将状语从句置于恰当的位置，并如何将其与主句之间自然连贯地连接起来，如何按汉语的习惯表达将句子类型进行相应的变化。由于两种语言表达上的不同，在状语从句的安排方面，存在着明显的差异，所以在翻译的时候也需要根据汉语习惯来灵活翻译。 一、时间状语从句 在英语中，时间状语从句的连接词常常有：when（当...的时候），whenever（每当...），as（当...时），since（自从...），until（直到...，如果不....），till（直到...），before（在...前），after（在...后），assoonas（一...就），once（一旦...），themoment（一...就），immediately（一...就），theday（在...那天），nosooner... than（一...就），hardly(scarcely)... when（一...就），theinstant（一...就），instantly（一...就），directly （一...就），theminute（一...就），thesecond（一...就），everytime（每当...），bythetime （等到....的时候）等。翻译的时候，一般翻译在主句的前面。 （一）译成相应的时间状语 Whileshespoke, thetearswererunningdown. 她说话时，泪水直流。 Ashefinishedthespeech, theaudienceburstintoapplause. 他结束讲话的时候，听众掌声雷动。 （二）译成“一（刚、每）...就”的结构 Directlyheutteredthesewordstherewasadeadsilence. 他刚说出这些话，大家就沉默下来。 （三）译成条件句 由于时间状语的引导词除了显示时间关系之外，有时候可以表示条件关系， 所以还可以翻译为条件句。 Turnofftheswitchwhenanythinggoeswrongwiththemachine. 如果机器发生故障，就把电门关上。 Abodyatrestwillnotmovetillaforceisexertedonit. 若无外力的作用，静止的物体不会移动。
原因状语从句 (1) 原因状语从句通常由because, si nee, as,for 引导。 (2) because表示直接原因，语气最强。because引导的原因状语从句多放在主句之后。回答由why提出的问 题，只能用because。此外，because和so不能同用在一个句子里。 例如：--- Why aren' t going there? ------- Because I don ' t want to. since弓I导原因状语从句，相当于now that，意思是因为....... ，既然.... ,鉴于...... ”。 例如：Si nee the rain has stopped , let ' s go for a walk.既然雨停了，我们出去散散步吧。 as和since语气较弱，一般用来表示明显的原因。由as和since引导的原因状语从居多放在句首。 例女口 : As he has no car, he can ' t get there easily. Since we have no money, we can ' t buy it. (4)for表示所说的理由是一种补充说明，for引导的从句一般不放在句子的开头。如： I decided to stop and have lun ch, for I was feeli ng quite hun gry. 小试牛刀：I was late for class yesterday there was someth ing wrong with my bike. He took off his coat he felt hot. (1) 结果状语从句由so…that, such …that, so that引导。 (2) so…that语such...that可以互换。在由so...that引导的结果状语从句中，so是副词，与形容词连用。其结 构是：…'“ +形容词(副词)+ that + 从句”。 例如：He was so glad that he couldn ' t say a word. Mother lives so far away that we hardly ever (几乎不，从来不) see her. 在由such…that引导的结果状语从句中，such是形容词，它修饰的可以是单数或复数可数名词，也可以是不 可数名词；其结构是：...'such +a / an + 形容词+名词+ that + 从句”。 例如：It was such a hot day that n obody wan ted to do anything. He had such long arms that he could almost touch the ceili ng. (天花板) 有时上述两种结构是可以互换的。 例如：It was such a won derful film that all of us wan ted to see it aga in. =The film was so won derful that all of us wan ted to see it aga in. ⑶如果名词前由many, much, little, few 等词修饰时，只能用so,不用such。 例如：Soon there were so many deer that they ate up all the wild roses. He has so little time that he can ' t go to the cinema with you. (4)如果主从句的主语相同，并且从句是否定的形式，可以用too...to...句型转化。 例如：He was so excited that he could n't go to sleep that ni ght. = He was too excited to go to sleep. (5)如果主从句的主语相同，但从句是肯定的形式，可以用adj.+ en ough替换。 例如：He is so old that he could go to school. = He is old en ough to go to school. 他够大了，可以去上学。