高三英语专题复习状语从句
高三复习状语从句
【专题眺望】
知能目标：①状语从句中从属连词的正确使用。
②主从句动词时态的一致性。
③状语从句中的省略现象。
④状语从句与其他从句、非谓语动词作状语之间结构上的区别和相互转换。
命题规律：状语从句在单项选择中的比重有所增大。侧重考查状语从句中的连词的选用，尤其是一些较特殊的连词、连词词组的含义和用法，如in case, on condition that, the moment, however等，主从句的时态呼应也是考查的重点。
【重难点透析】
1.时态呼应注意点
①状语从句用一般现在时表将来、用现在完成时表示将来完成时。如：
She will get married when she meets the right man.
We won't climb up the mountain until rain has stopped.
②在表示“刚……就……”的句型hardly…when… 和no sooner …than …中，主句常用过去完成时，从句常用一般过去时，如果否定词置于句首，主句可用倒装结构。如：
Hardly had I entered the room when I heard a loud noise.
③It is +段时间+since从句，从句里用过去时，It was +段时间+since从句，从句里用过去完成时，since与短暂性动词连用时，表示动作的开始，since与延续性动词连用表示该动作的结束，翻译时通常译成该动词的反义词。
How have you been since I saw you last time? (自从我上次见到你以后，你一向还好吗? )
It is (has been) just a month since he arrived here. (他来这里已经有一月了。)
It is five years since I lived in Nanchang. (自从我不住在南昌以来已经5年了。)
It is five years since I began to live in Nanchang. (自从我住在南昌以来已经5年了。)
I haven't heard from him since I lived in Nanchang. (自从我离开南昌以来，已经5年了。)
2. before的翻译较灵活，现将其译法归纳如下
①“在以前”，这时主句的动作发生在前，从句的动作在后
②“（后）才”，此时强调从句动作发生得晚或慢，主句的动作延续时间较长
③“就；便；快”，此时主句中的谓语动词为否定形式
④“未就；还没来得及就”，强调从句动作发生之前主句动作已经发生
⑤“趁着”⑥在某些习语中还可译成“先…（然）后；先…再”。如：
Before I go to the cinema, I must finish my homework. 我必须在去看电影之前做完作业。
We had sailed for two days before we saw land. 我们航行了两天才看见陆地。
It was not long before the Swiss rose up and drove the Austrian soldiers out of their country. 不久，瑞士人就举行起义，把奥地利人赶出了他们的家园。
The roof fell before he had time to dash into the room to save his baby. 他还没来得及冲进屋子去救他的孩子，房顶就塌下来了。
I must write it down before I forget it. 趁我还没忘记，我得把它写下来。
Think before you leap. 三思而后行。
3. 原因状语从句的引导词because, since 和as 的用法
because 引导原因状语从句，语气最强，用来回答why的提问，放在主句的前后均可。
as 引导原因状语从句，语气比because弱，常译为“由于”，只是附带说明，一般放在主句前面。
since 表示已知的或众所周知的原因，常译为“既然”，相当于now that。
注意在强调句中，只能用because。because of后边跟名词或代词。
关于表原因并列连词for 引导的分句，主要是补充说明原因，解释另一分句，不可回答why 的问句。例如：
I married her, not because she was rich, but because she was good –natured, clever and beautiful. Since you don't understand, I will explain it again.
He felt no fear, for he is brave.
4. 比较while, when, as
①as, when 引导短暂性动作的动词。
Just as / Just when / When I stopped my car, a man came up to me.
②当从句的动作发生于主句动作之前，只能用when 引导这个从句，不可用as 或while。
When you have finished your work, you may have a rest.
③从句表示"随时间推移"连词能用as，不用when 或while。
As the day went on, the weather got worse.日子一天天过去，天气越变越坏。
5. 比较until和till
此两个连词意义相同。肯定形式表示的意思是"做某事直至某时"，动词必须是延续性的。否定形式表达的意思是"直至某时才做某事"。动词为延续性或非延续性都可以。正确使用这两个连词的关键之一就在于判断句中的动词该用肯定式还是否定式。
肯定句：I slept until midnight. 我一直睡到半夜时醒了。
Wait till I call you.等着我叫你。
否定句：She didn't arrive until 6 o'clock. 她直到6点才到。
Don't get off the bus until it has stopped. 公共汽车停稳后再下车。
I didn't manage to do it until you had explained how. 直到你教我后，我才会做。
1) Until可用于句首，而till通常不用于句首。
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。
2) Until when 疑问句中，until要放在句首。
---Until when are you staying?你呆到什么时候？--- Until next Monday.呆到下周一。
注意：否定句可用另外两种句式表示。
1). Not until …在句首，主句用倒装。
Not until the early years of the 19th century did man know what heat is.
直到19 世纪初，人类才知道热能是什么。
Not until I began to work did I realize how much time I had wasted.
直到我开始工作，我才认识到了我已蹉跎了几多岁月。
2). It is not until… that… 强调句
It was not until I began to work that I realized how much time I had wasted.
6. though的用法
① though conj.“虽然；尽管”（不与but连用，但可以跟yet, still连用）；表示“然而”时是副词（在句尾），如：
Though we are poor, we are still happy. 虽然我们穷，我们还是很幸福。
Though it’s hard work, I enjoy it. 尽管是个苦差事，我喜欢。
He promised to phone. I heard nothing, though. 他答应打电话的，然而我什么也没听到。
②as/though引导的让步状语从句用部分倒装。可以把表语提前，也可以把状语提前，有时把谓语提前。若表语是名词时，名词前常省略冠词。如：
Child as/though he is, he knows a lot.虽然他是个孩子，他懂得许多。
Much as/though I like it, I don’t want to buy it.尽管我很喜欢，我还是不会买的。
Try as/though he might, he wouldn’t succeed.他试了也不会成功。
③as though就象；仿佛= as if ；even though即使；尽管= even if ，例如：
You sound as though/if you’ve caught a cold.你的声音听起来好像得了感冒。
Even though/if we achieve great successes in our work, we should not be conceited. 即使我们在工作中取得了很大成绩，我们也不该自满。
7. no matter wh- 和wh-ever用法
no matter wh- 后面跟从句不跟短语，whatever/whoever/whichever除了引导让步状语从句外，还可以引导名词性从句，而whenever/wherever/however只能引导让步状语从句。
8. 让步状语从句中的倒装形式为：
1) 强调对象＋as/though＋主语＋其它部分，强调对象可以是表语(名词，形容词)或状语(副词)。表语为名词时，前面通常不用冠词。例如：
Tired as he is, he goes on with his work.
Much as he likes her, he does get irritated with her sometimes.
Child as he is, he knows how to please the others.
2) be＋主语＋or连接的两个表语。这个句型相当于whether…or…引导的让步从句。例如：
Be it cheap or dear, I will take it. = Whether it is cheap or dear, I will take it.
9. 表示"一…就…"的结构
hardly/scarcely…when/before, no sooner…than和as soon as都可以表示"一…就…"的意思，例如：
I had hardly / scarcely got home when it began to rain.
I had no sooner got home than it began to rain.
As soon as I got home, 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.
10. 状语从句的省略情况如下
一般来说，省略现象出现于五种状语从句中
①when, while, as, before, after, till, until, once等引导的时间状语从句
②if, unless, whether等引导的条件状语从句
③though, although, even if, whatever等引导的让步状语从句
④as, than引导的比较状语从句
⑤as, as if, as though引导的方式状语从句
遵循的原则
当从句与主句的主语或宾语一致，且从句谓语为be时，可将从句主语及be省略。
当从句的主语是it，且从句谓语含有be时，可将it及be省略。
当so或not代替上文内容，此时可有if + so/not句式
常见的结构
连词(as, as if, once)+名词
连词(though, whether, when)+形容词
连词(whether, as if, while)+介词短语
连词(when, while, though)+现在分词
连词(when, if, even if, unless, once, until, than, as)+过去分词
连词(as if, as though)+不定式
例句：Once (he was) a teacher, he now works in a government office.
Work hard when (you are) young, or you’ll regret.
He looked everywhere as if (he was) in search of something.
While (I was) walking along the street, I heard my name called.
The exhibition is more interesting than (it was) expected.
He opened his lips as if (he were) to speak.
Her father told her to be careful when (she was) crossing the street.
Unless (it is) necessary, you’d better not refer to the dictionary.
Get up early tomorrow. If not (= If you don’t get up early), you will miss the first bus.
He may not be at home then, if so (= if he is not at home), leave him a note.
【经典例题点评】
[例1]（2003春招）---- Was his father very strict with him when he was at school?
---- Yes. He had never praised him ____ he became one of the top student in his grade.
A. after
B. unless
C. until
D. when
命题意图考查复合句中状语从句与主句的逻辑关系。
解题思路根据句意“父亲对他很严格，直到他成为年级里最好的学生是才表扬他”，选项中的四个连词只有until符合题意，引导的是个时间状语从句。unless相当于if not“除非；如果不”，引导条件状语从句
正确答案C
技巧点拨要熟练掌握连词的基本含义和用法。
举一反三
1. （2004四川）______ you call me to say you' re not coming, I'll see you at the theatre.
A. Though
B. Whether
C. Until
D. Unless
2. I would appreciate it ______ you call back this afternoon for the doctor’s appointment.
A. until
B. if
C. when
D. that
3. The company has a free long-distance telephone number ______ customers may call with any question they have about in its products.
A. so that
B. although
C. as
D. even if
[例2]（2004上海）Although he has lived with us for years, he ________ us much impression.
A. hadn't left
B. didn't leave
C. doesn't leave
D. hasn't left
命题意图考查主从句中的时态。
解题思路上文中的完成时，对下文是暗示：尽管和我们已经一块住了多年，但是他还是没给我们留下什么印象。
正确答案D
技巧点拨主从句的时态要前后呼应。
举一反三
4. ---- Put these glasses away before they ______. ---- OK. I’ll put them in the cupboard.
A. have broken
B. are breaking
C. get broken
D. will be broken
5. If you had told me about your problem, I _____ able to help you.
A. may be
B. might be
C. may have been
D. might have been
6. All morning as she waited for the medical report from the doctor, her nervousness _______ .
A. has grown
B. is growing
C. grew
D. had grown
[例3]（2004上海）________, 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
命题意图考查让步状语从句中的语序。
解题思路however （No matter how）引导状语从句，从句中语序与感叹句相同。No matter后面要先加上疑问词。
正确答案C
技巧点拨从句中（除非倒装句）都用陈述语气。
举一反三
7. Although he is considered a great writer, ______.
A. his works are not widely read
B. but his works are not widely read
C. however his works are not widely read
D. still his works are not wide read
8. Yesterday I was walking downstairs when I missed my foot and had a bad fall, nothing serious, ______.
A. even
B. either
C. then
D. though
9. _____ sick or well, the old man is always cheerful.
A. Either
B. No matter
C. Even if
D. Whether
[例4]______, I’ll tell you all about it.
A. If I am possible
B. If necessary
C. When they are necessary
D. When I am necessary
命题意图考查状语从句的省略形式。
解题思路材料中是个省略从句的形式，完整的表达形式是If it is necessary。当主从句主语一致或从句主语是it，谓语是be的时间、地点、方式或让步状语从句，则从句中的主语连同be可以一起省去，如：if/when/unless possible (necessary, invited…等)。可用这种结构的还有when, after, once, until, though, as, since等，如：(When you are)Far away from home you should take more care of yourself.
As a boy (As he was a boy), he loved collecting stamps.
正确答案B
技巧点拨正确判断主从句的主语和谓语，再考虑是否符合省略条件。
举一反三
10. ---- Will you go to Mary’s birthday party? ---- No, _____ invited, I can’t go to it. I’ll be too busy then.
A. if
B. unless
C. even though
D. when
11. Father advised me not to say anything until _______ at the meeting.
A. asking
B. to ask
C. asked
D. ask
12. Mr. Black, _______ born in Kentucky, lived and practiced law in Missouri.
A. was
B. he was
C. although
D. who he was
[例5]（2004江苏）I accept that he is not perfect, I do actually like the person.
A. While
B. Since
C. Before
D. Unless
命题意图考查常见关联词的特殊意义。
解题思路从句意来看应该有让步含义，“尽管我承认他并不完美，我确实喜欢这个人”。while可用作并列连词，还可以引导让步状语从句，表示“虽然；但；然而”，其他选项并无此用法。
正确答案A
技巧点拨熟悉常用关联词的不同含义和用法，才能适应高考试题的广度和深度。
举一反三
13. I thought he would be dressed in his new brown coat, ______, in fact, he was still dressed in that ole blue one.
A. that
B. which
C. as
D. while
14. _____ you understand the rule, you will have no further difficulty.
A. While
B. Once
C. Though
D. Unless
15. ---- Our journey cost a lot of money. ---- Did it? Well, that doesn’t matter ______ you enjoyed yourselve s.
A. as far as
B. unless
C. as long as
D. in case
[例6]______, I have never seen anyone who’s as capable as John.
A. As long as I have traveled
B. Now that I have traveled so much
C. Much as I have traveled
D. As I have traveled so much
命题意图考查“副词/名词+as”位于句首时引导的让步状语从句。
解题思路理解句子的意思是解题的关键，这是个主从复合句，前后有转折关系，“尽管我游历过很多地方，但从未见过约翰这样能干的人”。注意：名词作表语位于句首时，零冠词现象，如：Child as he is, he knows a lot. 正确答案C
技巧点拨熟悉状语从句的让步结构和倒装句结构。
举一反三
16. _____ the Egyptian people were warlike, they found time for peaceful games.
A. As if
B. Even though
C. Once
D. As soon as
17. ---- The weather report said that there is rain today.
---- But I don’t think the foo tball match will be put off _____.
A. although
B. even so
C. even though
D. as though
18. 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
答案与提示
1-5. DBACD 6-10. CADDC 11-15. CCDBC 16-18. BBD
1. 根据句意“除非你打电话告诉我你不来了，否则我在戏院与你碰头”。其他选项都有逻辑问题。
2. 从I would appreciate it“我会非常感激”，可知后面是个条件状语从句。表示“感激”的还有：be thankful/grateful to sb. for sth. 注意：appreciate后面不用人作宾语。
3. 本句意思“这家公司有一个免费的长途电话号码，以便客户对产品有问题的时候可以打电话询问”，so that 引导目的状语从句，although, even if引导让步状语从句，as引导原因状语从句。
4. 主句是个祈使句表示建议，是指尚未进行的动作，因此before从句里用一般现在时来表示将来时，这时before从句意思是“趁着还没打破”。
5. 本题考查if引导的虚拟条件状语从句。本句的意思是“你要是（当时）告诉我你的问题，可能我能帮助你”。
6. 由从句时态可知主句也应该用过去时态，此题中as 应译为“当…的时候”，所以过去式最合适。
7. 排除B，因although/though不能与but连用，排除C，因结构错误，排除D，表示“广泛地”要用widely。
8. 本句从意思上看前后有转折，只有though合适。though用在句子末尾，表示“尽管如此；然而”。
9. 本题中whether引导表示让步的状语从句，意思是“无论是否；不管是…还是…”。
10. 根据I can’t go to it. I’ll be very busy then可知前句表示“即使受到邀请也不去”，因此选even though = even if，而且这是个省略句。
11. until asked = until I was asked
12. 此处省略了he was。
13. while在本题中是并列连词，“然而”。
14. once在本题中意思是“一旦就”，是连词，后跟从句，表示条件。
15. 连词词组as far as“就…之限度；在…范围内”；as/so long as“只要；如果”；根据句意应该是“只要玩得开心，花些钱没关系”，显然是表示条件，用as long as。
16. 前半句是“埃及人民将面临战争”，后半句意思是“他们依然能找到时间玩一些和平的游戏”，前后文有意思上的转折，只有even though“尽管；即使”= even if才合题意。
17. even so“即使如此”，第二个人认为“即使这样运动会也不会延期”。
18. however, whatever引导让步状语从句时，与其被修饰的词放在主谓前面，不倒装。
【探究小课堂】
探究主题如何掌握部分从属连词的多义性
探究材料Why do you want a new job ______ you've got such a good one already?
A . that
B . where
C . which
D . when
探究导航正确答案是D。此题考查的是从属连词when 的用法。但是通过题干意义可知，这里的when 并不是我们平时常用的意义“当……的时候”，而是“既然”的意思，相当于“since”。其实从属连词中有不少象when 这样的词，具有多义性。本文就这一问题作一归纳。
一、when
1 . 表示时间，意思是“当……的时候”。例如：
The fire was put out when they came . 他们来到的时候，大火已经被扑灭了。
2 . 表示条件，意思是“如果……，要是……”例如：
When the weather is good , I usually go to the country .
Turn off the switch when anything goes wrong with the machine .
3 . 表示原因，意思是“既然”。例如：
How can he succeed when he won't work?
Why do we take the flag down at night , when we just have to put it up again in the morning?
4 . 表示让步，意思是“虽然，然而，可是”。例如：
He walks when he might ride .
We have only three chairs when we need five .
二、while
1 . 表示时间，意思是“当……的时候”，“和……同时”。例如：
We waited while he dined .
Please be quiet while I am talking to you .
2 . 表示让步，意思是“虽然，尽管”。例如：
While I understand what you say , I can't agree with you .
While he is respected , he is not liked .
3 . 表示对比，意思是“而，然而”。例如：
She is very diligent , while he is very lazy .
You like sports , while I'd rather read .
三、If
1 . 表示条件或假设，意思是“如果，假如”。例如：
We'll stay at home if it rains tomorrow .
If I were you , I would not go .
2 . 表示让步，意思是“虽然，即使”。例如：
I will go if I die for it .
If I am wrong , you come wrong , too .
3 . 表示时间，意思是“无论何时，当……”，相当于whenever。例如：
If I do not understand what he says , I always ask him .
If winter comes , can spring be far behind?
4 . 表示原因，意思是“既然”。例如：
If you don't like the job , why don't you change it?
四、as long as , so long as
1 . 表示时间，意思是“达……之久”。例如：
You can keep the book as long as you like .
During the holidays , I like to stay in the countryside as long as I can .
2 . 表示条件，意思是“只要”。例如：
As long as you tell truth , I'll try to help you .
You may take this book away so long as you return it on time .
3 . 表示原因，意思是“既然，由于，因为”。例如：
So long as the weather is changeable these days , we'd better get in wheat in time .
So long as you are going to town tomorrow , you can do something for me .
五、since
1 . 表示时间，意思是“自从……以来”。例如：
I haven't heard from him since he left .
It is ten years since he joined the army .
2 . 表示原因，意思是“既然”。例如：
Since this method doesn't work , let's try another .
七、so that
1 . 表示目的，意思是“以便，为了”。例如：
They started off early so that they could get there in time .
The student worked hard so that he might learn more .
2 . 表示结果，意思是“因此，结果是”。例如：
I went to the lecture early so that I got a good seat .
He spoke clearly , so that everyone heard .
【专题训练】
基础题
1. He realized that she was crying ______ he had said.
A. because what
B. because of what
C. because that
D. because
2. It ______ long before we ______ the result of the experiment.
A. will not be; will know
B. is; will know
C. will not be; know
D. is; know
3. He was about to tell me the secret ______ someone patted him on the shoulder.
A. as
B. until
C. while
D. when
4. _____ there is a will, there is a way.
A. That
B. Where
C. The place where
D. At the place
5. ---- When will you come to see me, Dad? ---- I will go to see you when you _____ the training course.
A. will have finished
B. will finish
C. are finishing
D. finish
6. You should make it a rule to leave things _____ you can find them again.
A. when
B. where
C. then
D. there
7. ---- Shall Mary come and play computer games? ---- No, ______ she has finished her homework.
A. when
B. if
C. unless
D. once
8. I shall ring you up ______ you should forgot it.
A. in case of
B. in case
C. in no case
D. in that case
9. He was working at a new book ______ I went to see him.
A. first time
B. for the first time
C. by the first time
D. the first time
10. _____, you mustn’t go against the rules.
A. No matter what to do
B. Whatever to do
C. What you do
D. Whatever you do
11. ---- Why haven’t I seen Jerry recently? ---- Oh, because it is two weeks since she _____ here.
A. lived
B. got
C. has lived
D. had got
12. I caught the last bus from the town, yet Henry came home _____ that night.
A. very late
B. even later
C. so late
D. the latest
13. Mrs. Smith locked both the front and the back doors before she went to bed _____ that a thief might steal into the house.
A. so
B. for fear
C. unless
D. in case
14. We hadn’t been out for long, _____ she felt sick.
A. as
B. when
C. while
D. after
15. We were just _____ calling you up _____ you come in.
A. about; when
B. beginning; while
C. on the point of; when
D. out of; as
拓展题
16. ---- I’m going to the post office. ---- _____ you’re there, can you get me some stamps?
A. As
B. While
C. Because
D. If
17. You can arrive in Beijing earlier for the meeting _____ you don’t mind taking the night train.
A. on condition that
B. unless
C. though
D. until
18. The gas must have been used up, _____ the fire went out of itself.
A. because
B. as
C. for
D. since
19. He _____ to the lab than he set out to do the experiment.
A. has no sooner got
B. no sooner got
C. will no sooner get
D. had no sooner got
20. Ants are the most common life form on earth. ____ tiny, their combined weight is greater than that of the combined weight of all humans.
A. Though
B. Even
C. Even though
D. As if
21. Kathy and Anne looked _____ they were twins, for they looked so much _____ each other.
A. like; same
B. as; like
C. if; the same
D. as if; like
22. ---- When did he leave the classroom? ---- He left _____ you turned back to write on the blackboard.
A. the minute
B. the time
C. until
D. before
23. I thought things would get better, but _____ it is they are getting worse.
A. before
B. because
C. as
D. after
24. ---- I’ve got _____ I am by hard work. ---- No, you didn’t. You got _____ with your father’s money.
A. there; where
B. where; there
C. there; there;
D. where; where
25. If the building project ______ by the end of this month is delayed, the construction company will be fined.
A. to be completed
B. is completed
C. being completed
D. completed
26. I was half way back to the cottage where my mother lived _____ Susan caught up with me.
A. before
B. where
C. when
D. that
27. Some people object to the research on cloning human embryo（胚胎）, ______ its purpose is.
A. whatever
B. what
C. which
D. whoever
28. I regret not having taken your advice. Otherwise I _____ this mistake.
A. didn’t make
B. wouldn’t make
C. hadn’t make
D. wouldn’t have make
29. As far as we know, Tom spends at least as much time watching TV as he _____.
A. does writing
B. writes
C. writing
D. does to write
30. I’d get it for you _____ I could remember who last borrowed it.
A. except that
B. if only
C. on condition that
D. considering whether
状语从句1-5. BCDBD 6-10. BCBDD 11-15. ABBBC 16-20. BACDA 21-25. DACBA 26-30. CADAB
高中英语必修二状语从句教案
一地点状语从句 地点状语从句通常由where, wherever 引导。 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。 二. 方式状语从句 方式状语从句通常由as, (just) as…so…, as if, as though引导。 1）as, (just) as…so…引导的方式状语从句通常位于主句后，但在(just) as…so…结构中位于句首，这时as从句带有比喻的含义，意思是"正如…"，"就像"，多用于正式文体，例如：Always do to the others as you would be done by.你希望人家怎样待你，你就要怎样待人。As water is to fish, so air is to man.我们离不开空气，犹如鱼儿离不开水。 Just as we sweep our rooms, so we should sweep backward ideas from our minds. 正如打扫房屋一样，我们也要扫除我们头脑中落后的东西。 2）as if, as though 两者的意义和用法相同，引出的状语从句谓语多用虚拟语气，表示与事实相反，有时也用陈述语气，表示所说情况是事实或实现的可能性较大。汉译常作"仿佛……似的"，"好像……似的"，例如： They pletely ignore these facts as if (as though) they never existed. 他们完全忽略了这些事实，就仿佛它不存在似的。（与事实相反，谓语用虚拟语气。） He looks as if (as though) he had been hit by lighting. 他那样子就像被雷击了似的。（与事实相反，谓语用虚拟语气。） It looks as if the weather may pick up very soon. 看来天气很快就会好起来。（实现的可能性较大，谓语用陈述语气。） 说明：as if / as though也可以引导一个分词短语、不定式短语或无动词短语，例如： He stared at me as if seeing me for first time.他目不转睛地看着我，就像第一次看见我似的。He cleared his throat as if to say something.他清了清嗓子，像要说什么似的。 The waves dashed on the rocks as if in anger.波涛冲击着岩石，好像很愤怒。 三. 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。 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，则可以用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. 四. 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, for fear that, in case等词引导，例如：
初中英语语法——If引导的条件状语从句(讲解及练习)
条件句从句主句 真实一般现在时一般将来时 情态动词+动原祈使句 非真实 一般过去时 be动词用（were） would/could+动原初中英语――条件状语从句（讲解&练习） Ⅰ条件状语从句的定义 Ⅱ条件状语从句的引导词 1.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。 If we pay much attention to the earth, we'll have a better world. 如果我们多关爱地球，就会拥有一个更美好的世界 If it rains tomorrow, what shall we do? 如果明天下雨，我们怎么办？ 注意：if还可以引导虚拟条件句，表示不可实现的条件，从句中多用一般过去时或过去完成时。 What would happen if there were no water ? 如果没有水会怎样？ 2.unless引导的条件状语从句，unless的意思是如果不，除非。可与if...not互换。 You will fail in English unless you work hard. 你英语考试会不及格的，除非你更加努力。 3.as /so long as引导的条件状语从句：as /so long as意思是“只要” So long as you're happy,i will be happy. 只要你高兴，我就高兴。 Ⅲ条件状语从句的种类 Ⅳ条件状语从句的时态原则 用法例句 ①主句为一般将来时态，if从句用一般 现在时态（即主将从现）。We will stay at home if it rains tomorrow. 如果明天下雨，我将要呆在家。 ②主句中含有情态动词，if从句用一 般现在时态。If you finish your homework, you can go home now.如果你做完了作业，你现在可以回家了。 ③主句为祈使句，if从句用一般现在 时态。Don’t jump into the river if you feel very hot. 如果你感到很热，不要跳入河里。 ④主句为过去将来时，if从句用一般 过去时态（如果涉及到be动词， 一律都用were）。此时，表达的是和现实相反的推测，用虚拟语 气。If I were you, I wouldn’t do it like that.如果我是你，我就不会那么做的。 If you gave me some money, I would be very happy. 如果你给我一些钱，我就会很高兴的。 二、if 引导的条件状语从句 （1）“if 从句+祈使句”的句子。其实，if 作为一个连词，主句也可以是其他形式的句子。 例如：If you want to go, please let me know. (2)“祈使句 + and (or)+ 陈述句”
高考英语状语从句专项训练
专题十一状语从句 状语从句在高考试题中由于其他从句的干扰，以及倒装句，强调句的介入，使得状语从句更为复杂。状语从句是一种副词性从句，通常由一个从属连词或一个起连词作用的词组引导。状语从句 1. 时间状语从句 常见的连词(组)： when, while, as, before, after, once, till, until, as soon as, now that, hardly ...when, scarcely ...when, no sooner ...than等。 可以引导时间状语从句的副（介）词（短语）或名词短语： directly, instantly, immediately, by the time, the moment, the second, the minute, the instant, every time, each time, next time, the last time等。 注意点如下： (1) when, while, as引导的时间状语从句 as表示“当……的时候”，往往和when/ while通用，但它着重强调主句与从句的动作或事情同时或几乎同时发生。when(at or during the time)既可以表示在某一点的时候，又可以表示在某一段时间内，主句与从句的动作或事情可以同时发生也可以先后发生。while强调一段时间，仅表示从句和主句的动作同时发生，并且有延续意义，该从句中的动词一般要用延续性动词，从句中常用过去进行时态或一般过去时态；当when表示a period of time时，两者可以互换。 She came up as I was cooking.(同时) 在我做饭时，她走了过来。 When we were at school, we went to the library every day.(在一段时间内) 当我们在学校时，每天都去图书馆。 While they were watching TV, I was preparing myself for the coming examination. 他们在看电视，而我在为即将到来的考试做准备。 Strike while the iron is hot. 趁热打铁。( 不可用as或when，这里的while意思是“趁……”) (2) before引导状语从句时的常见重点句型 ①It will (not) be ...before ... 还要……才，要不了多久就…… It was (not) ...before ... 过了……才(没多久就……) It was a long time before I got to sleep. 过了好长时间我才睡着了。 It wasn t long before he told me about the news. 没多久他就告诉了我那条新闻。 ②不等……就……；在……之前就…… The telephone rang off before I could answer it. 我还没来得及接电话，电话就挂断了。 ③刚……就…… He hardly entered the room before he heard the telephone ring. 他刚进屋电话铃就响了。
(完整版)英语状语从句汇总整理版
英语中的九大状语从句 状语从句在主从复合句中修饰主句中的动词、形容词或副词等，按意义可以分为时间、地点、原因、目的、结果、条件、方式、比较、让步等状语从句。 一．时间状语从句。 通常由从属连词when, whenever, as, while, before, after, as soon as, till, until, since, once (一旦), hardly……when…, no sooner…….than…; 等引导。例如： The cyclist started just as the lights changed to green. Whenever we met with difficulties , they cam to help us. He didn’t leave his office until he had finished the day’s work. 应注意的问题 1．在时间状语从句中，通常要用动词的一般现在时态表示一般将来时态，用一般过去时态表示过去将来时态。但when 引导一般疑问句或名词性从句时不受上述语法规则的限制，因此，应该加以区分。例如： When China will enter WTO depends on the bilateral (双边的)joint efforts. Once you understand the rules of the game, you’ll enjoy it. 2.when , while, as 的不同用法。一般说来，当主、从句的动作是同时发生的事，三者可以换用。when 既可以引导一个持续动作，也可以引导一个短暂动作，可用于主句和从句动作同时发生或从句动作先于主句动作；while 引导的动作必须是持续性的，强调主句和从句的动作同时发生，往往侧重主句和从句动作的对比；as 用于引导“在某行为的继续中发生某事”的“继续之行为”，所以多与过去进行时连用，翻译成“一边……一边……”或者表示动作的变化，翻译成“随着……”。 例如： I hope you’ll think of my words as/when/while you drive on the busy roads. When he realized it, the chance had been lost. When he came home, I was cooking dinner. I was fat when I was a child. He took a bath while I was preparing dinner. As I was walking down the street, an American asked me for the directions to the nearest station. He sang songs as he was taking a bath. As he gets older he gets more optimistic.
初中英语语法状语从句大全
初中英语语法状语从句大全 1.时间状语从句 引导连词有when，while，till，not…until，since， after ,before ,as soon as The bus won’t start until everybody gets on. 公共汽车直到每人都上车为止，才开动。 When he knocked at the door I was cooking. 当他敲门时，我正在煮饭。 Last night before he came back home, his wife had already cooked dinner and waited for 2 hours. 昨天晚上在他回到家之前，他的妻子已经做好晚饭足足等了他两小时之久。 After I went to church, I went shopping. 2. 地点状语从句 地点状语从句通常由where, wherever 引导。 Where there is a will, there is a way. 哪里有志向，哪里就有出路。有志者事竟成。 Where there is a life, there is a hope. 哪里有生命，哪里就有希望。留得青山在，不怕没柴烧。 Wherever you go, whatever you do, I will be right here waiting for you. 不管你去哪里，不管你做什么，我都会在此守侯你。
3.原因状语从句 引导连词有because，as, since。 He didn′t see the film because he had seen it. 他没有看那部电影，因为他已经看过了。 They couldn’t get on the train，for it was too crowed. 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.
最新中考英语专题汇编状语从句(一)
最新中考英语专题汇编状语从句(一) 一、初中英语状语从句 1．Daming hasn't done much exercise _______ he got his computer. A．when B．if C．though D．since 【答案】D 【解析】 试题分析：句意：自从有了电脑，大卫就没有做许多运动了。A. when当……时；指时间；B. if如果，表示条件；C. though虽然，尽管，表示让步；D. since自从，表示时间的起点。不锻炼是从有电脑开始的，表示时间的起点，用since。故选D。 考点：考查连词辨析。 2．一When did you leave your office yesterday? 一 I finished the project. A．Until B．While C．When D．Not until 【答案】D 【解析】 句意：昨天你什么时候离开你的办公室的？——直到我完成那个任务。本题考查连词。A. Until 直到···时候才结束，要与延续性动词连用；B. While 当···时候；C. When 当···时候；D. Not until直到···时候才开始，与非延续性动词连用；句子中finished（完成）是非延续性动词，故选D 3．You will fall behind others ______ you work hard. A．if B．unless C．though D．since 【答案】B 【解析】 试题分析：句意：如果你不努力学习，你会落后别人。A.because因为；B. If如果；C. Unless如果不； D. Though虽然。结合句意，故选B 考点：考查连词的用法. 4．__________ you have tried it on, you can’t imagine how pretty the new style skirt is. A．Because B．Although C．Unless D．When 【答案】C 【解析】 本题的含义是如果你不尝试一下，你将不能想象一下这件新款式的裙子有多么漂亮，unless表示如果不的意思，故本题选C。 5．--Peter, please send us postcards we’ll know where you have visit ed. --No problem.
高三英语状语从句全国通用
状语从句 状语从句分类及常用连词：时间状语从句：when, whenever, while, as, before, after, since, till, once, as soon as, etc. 地点状语从句：where, wherever 原因状语从句：because, since, as, for, now that, etc. 目的状语从句：in order that, so that, that, etc. 结果状语从句：so…that, so that, such…that, that, etc. 条件状语从句：if, unless, as(so)long as, etc. 让步状语从句：though, although, even if, even though, however, whatever, as, etc. 比较状语从句：as…as, so…as, than, etc. 方式状语从句：as, as if, as though, etc. 相似连词的用法区别 1.when, while, as, while表时间，从句需用延续性动词，切不可用瞬间动词。 when表时间，从句既可以用延续性动词，又可以用瞬间动词。 as表时间，与when相似，但侧重强调主从句动作同点或同段进行。 when, while后可以接分词短语。 2.because, as, since, for 语气位置意义 because最强前或后“原因”；表客观因果关系；回答“why” as较强前“由于”；把众人所知的事实当作理由since较弱前“既然”；就对方陈述的事实作为理由for最弱后“理由”；对某一事实进行推断的理由注：上面所说的“前”，指从句在主句之前；“后”，指从句在主句之后。 3.so that, so…that, such…that so that “以便”、“结果”表目的和结果。注意：在从句中有情态动词表目的。无情态 动词表结果。 so…that“如此的…以致于”表结果。该结构常见于： 1.so+形／副＋that 2.so+形＋a(an)＋单数名词＋that 3.so＋many/much＋复数名词（不可数名词）+that such…that“如此的…以致于”表结果。该结构常见于： 1.such＋a(an)＋形＋名词＋that 2.such＋形＋复数名词／不可数名词＋that 4.though, although, as, though, although在句首表“尽管”两者都可以用。但句后不能再用but。 下列情况只能用though： ▲as though (=as if);even if (=even though)
状语从句教案
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高三英语状语从句1
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when时间状语从句讲解教案教程文件
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可编辑word 资料收集于网络，如有侵权请联系网站删除二，时间状语从句 When, while, as, before, after, since, 引导时间状语从句的连接词一般有等。，until/tillas soon as When 观察下面例句，总结其用法 1.When he was a child he was always trying out new ideas. 他小时候就常常试验一些新的设想。 2. When she came into my room, I was just reading a book. 她走进我房间时，我正在看书。 3. Were you writing when the teacher came in? 老师进来的时候，你在写信吗？ 4. Sorry, I was out when you called me. 对不起，你打电话来的时候我出去了。 总结：从句表示动作可以______________也可以_________________,主句和从句的先后关系_______________________________________ When从句一般用于过去时比较多，主句无时态限制。 练习 Eg: When I got to the airport, the guests had left. 当我赶到飞机场时，客人们已经离开了。 可编辑word 资料收集于网络，如有侵权请联系网站删除When he had finished his
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