语法复习6：状语从句
语法复习六：状语从句
由从句担任的状语，在句子中可修饰谓语（或其它动词）、形容词、副词或是整个句子，它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。状语从句是一较大的语法项目，也是近几年高考题中常见的一个重要试点。高考中已考查了时间、让步、地点、条件、目的等状语从句，这些从句仍是今后高考热点，应作充分准备。同时对方式状语从句也应引起重视。
（一）时间状语从句表示时间的状语从句可由when, as, while, whenever, after, before, till (until), since, once, as soon as (或the moment ), by the time, no sooner … than, hardly (scarcely) … when, every time等引导。
e.g. When I came into the office, the teachers were having a meeting.
He started as soon as he received the news.
Once you see him, you will never forget him.
No sooner had I gone to bed than I went to sleep.
（二）原因状语从句原因状语从句是表示原因或理由的，引导这类从句的最常用的连词是because, since, as , now that（既然）等，for 表示因果关系时（它引导的不是从句）为并列连词，语气不如because强。
e.g. He is disappointed because he didn't get the position.
As it is raining, I will not go out.
Now that you mention it, I do remember.
（三）地点状语从句引导地点状语从句的连词是where 和wherever等。
e.g. Sit wherever you like.
Make a mark where you have a question.
（四）目的状语从句引导目的状语从句最常用的词（组）是so, so that（从句谓语常有情态动词）, in order that, in case（以防，以免）等。
e.g. Speak clearly, so that they may understand you.
She has bought the book in order that she could follow the TV lessons.
He left early in case he should miss the train.
（五）结果状语从句结果状语从句是表示事态结果的从句，通常主句是原因，从句是结果。由so that （从句谓语一般没有情态动词）, so … that, such … that等引导。
e.g. She was ill, so that she didn’t attend the meeting.
He was so excited that he could not say a word.
She is such a good teacher that everyone admires her.
（六）条件状语从句条件状语从句分真实性（有可能实现的事情）与非真实性（条件与事实相反或者在说话者看来不大可能实现的事情）条件句。引导条件状语从句的词（组）主要有if, unless, so (as) long as, on condition that, so (as) far as, if only ( = if )。注意：条件从句中的if 不能用whether替换。
e.g. If he is not in the office, he must be out for lunch.
Y ou may borrow the book so long as you keep it clean.
So far as I know（据我所知）, he will be away for three months.
Y ou can go swimming on condition that ( = if ) you don’t go too far away from the river bank.
If he had come a few minutes earlier, he could have seen her.
（七）让步状语从句让步状语从句可由although, though, as, even if (though), however, whatever, whether … or, no matter who (when, what, …) 等引导。注意：as引导的让步状语从句一般是倒装的。
e.g. Though he is a child, he knows a lot.
Child as he is, he knows a lot.
Whatever ( = No matter what ) you say, I’ll never change my mind.
（八）方式状语从句方式状语从句常由as, as if (though), the way, rather than等引导。
e.g. Y ou must do the exercise as I show you.
He acted as if nothing had happened.
（九）比较状语从句比较状语从句常用than, so (as) … as, the more … the more等引导。
e.g. I have made a lot more mistakes than you have.
He smokes cigarettes as expensive as he can afford.
The busier he is, the happier he feels.
（十）使用状语从句时要注意的几个问题
1、在时间和条件（有时也在方式、让步等）从句中，主句是一般将来时，从句常用一般现在时表示将来。
e.g. We’ll go outing if it doesn’t rain tomorrow.
I’ll write to you as soon as I get to Shangha i.
2、有些时间、地点、条件、方式或让步从句，如果从句的主语与主句主语一致（或虽不一致，是it），从句的谓语又包含动词be ，就可省略从句中的“主语+ be”部分。
e.g. When (he was) still a boy of ten, he had to work day and night.
If (you are) asked you may come in.
If (it is) necessary I’ll explain to you again.
3、注意区分不同从句：引导的是什么从句，不仅要根据连词，还要根据句子结构和句意来判别。以where 为例，能引导多种从句。
e.g. Y ou are to find it where you left it.（地点状语从句）
Tell me the address where he lives.（定语从句，句中有先行词）
I don’t know where he came from.（宾语从句）
Where he has gone is not known yet.（主语从句）
This place is where they once hid.（表语从句）
练习
一、用横线划出下列句子中的状语从句，并指出是哪种状语从句：
1. Child as she is, she knows a lot of things.
2. The more I can do for the class, the happier I’ll be.
3. He talks as if (as though) he knew all about it.
4. He is such a good teacher that the students love and respect him.
5.I shall go to the park unless it rains.
6. No sooner had I got home than it began to rain.
7. Where there is water, there is life.
8. He studied hard so that he could catch up with his classmates.
9. Since you are very busy, I won't trouble you.
10. Even if (though) I fail. I’ll never lose heart.
11. Once you begin the work, you must continue.
12. I will find her wherever she may be.
13. Now that you've come, you'd better have dinner with us.
14. He was so excited that he couldn't fall asleep.
15. We must do everything as he tells us.
16. India is much bigger than Japan.
17. No matter when you come, you are warmly welcome.
18. As (So) long as you work hard, you can catch up with the other classmates.
二、用适当的连词填空：
1. Dr. Bethune (白求恩) came to China __________ he was fifty.
2. He began to work __________ he got there.
3. Let's begin our meeting __________everyone is here.
4. I like the English people, __________ I don't like their food.
5. __________ you go in China, you can see smiling faces.
6. He didn't come to the lecture, __________ he was very busy.
7. __________we had enough time, we walked to the cinema.
8. They will help you __________ you meet with difficulty.
9. _________ we came to the university, we have learnt quite a lot.
10.I didn't join them yesterday evening __________ I had to go to an important meeting.
11. We would try to get a car __________we could all travel together more easily.
12. She wouldn't forget her mother's birthday __________ she seldom wrote to her family.
13. We're doing everything we can to make things as easy for you ___________we can.
14. The meeting became so disorderly __________ the speaker had to shout the audience down.
15. He was angrier __________ ever before.
16. __________ you lock all the doors, he can still manage to get in.
17. The boy was so tired __________ he fell asleep on the bus.
18. Hard _________ he tried, he couldn’t force the door open.
三、选择填空：
1. I’ll let you know ____ he comes back.
A. before
B. because
C. as soon as
D. although
2. She will sing a song ____ she is asked.
A. if
B. unless
C. for
D. since
3. We will work ____ we are needed.
A. whenever
B. because
C. since
D. wherever
4. Read it aloud _____ the class can hear you.
A. so that
B. if
C. when
D. although
5._____ you go, don't forget your people.
A. Whenever
B. However
C. Wherever
D. Whichever
6. It is about ten years _____ I met you last.
A. since
B. for
C. when
D. as
7. They will never succeed, _____ hard they try.
A. because
B. however
C. when
D. since
8. _____ still half drunk, he made his way home.
A. When
B. Because
C. Though
D. As
9. _____ she was very tired, she went on working.
A. As
B. Although
C. Even
D. In spite of
10. Busy _____ he was, he tried his best to help you.
A. as
B. when
C. since
D. for
11. I learned a little Russian _____ I was at middle school.
A. though
B. although
C. as if
D. when
12. _____ we got to the station, the train had left already.
A. If
B. Unless
C. Since
D. When
13. _____ the rain stops, we' 11 set off for the station.
A. Before
B. Unless
C. As soon as
D. Though
14. She was _____ tired _____ she could not move an inch.
A. so, that
B. such, that
C. very, that
D. so, as
15. We didn’t go home _____ we finished the work.
A. since
B. until
C. because
D. though
16. I'll stay here _____ everyone else comes back.
A. even if
B. as though
C. because
D. until
17. Although it's raining, _____ are still working in the field.
A. they
B. but they
C. and they
D. so they
18. Speak to him slowly _____ he may understand you better.
A. since
B. so that
C. for
D. because
19. You'll miss the train ______ you hurry up.
A. unless
B. as
C. if
D. until
20. When you read the book, you' d better make a mark _____ you have any questions.
A. at which
B. at where
C. the place
D. where
21. We'd better hurry ______ it is getting dark.
A. and
B. but
C. as
D. unless
22. I didn' t manage to do it _____ you had explained how.
A. until
B. unless
C. when
D. before
23._____ he comes, we won't be able to go.
A. Without
B. Unless
C. Except
D. Even
24. I hurried _____ I wouldn't be late for class.
A. since
B. so that
C. as if
D. unless
25. _____ I catch a cold, I have pain in my back.
A. Every time
B. Though
C. Even
D. Where
26. What's the matter _____ they still haven't answered the telegram?
A. when
B. that
C. though
D. however
27. Bring it nearer _____ I may see it better.
A. although
B. even though
C. so that
D. since
28. You may arrive in Beijing early _____ you mind taking the night train.
A. that
B. though
C. unless
D. if
29. Helen listened carefully _____ she might discover exactly what she needed.
A. in that
B. in order that
C. in case
D. even though
30. More people will eat out in restaurants _____ they do today.
A. than
B. when
C. while
D. as
31._____ hard she tries, she can hardly avoid making mistakes in her homework.
A. Much
B. However
C. As
D. Although
32. Poor _____ it may be, there is no place like home, _____ you may go.
A. as; wherever
B. though; whenever
C. in spite of; when
D. that; wherever
33. The child was __ immediately after supper.
A. enough tired to go to bed
B. too tired to go to bed
C. so tired that he went to bed
D. very tired, he went to bed
34. The history of nursing __ the history of man.
A. as old as
B. is old than
C. that is as old as
D. is as old as
35. _____ born in Chicago, the author was famous for his stories about New York.
A. Since
B. Once
C. When
D. Although
36._____ we stood at the top of the building, the people below were hardly visible.
A. As
B. Although
C. Unless
D. In spite of
37. Scarcely was George Washington in his teens _____ his father died.
A. than
B. as
C. while
D. when
38. _____ David goes, he is welcome.
A. Whichever
B. However
C. Wherever
D. Whatever
39. The house stood _____ there had been a rock.
A. which
B. at which
C. when
D. where
40. Small _____ it is, the pen is a most useful tool.
A. because
B. so
C. if
D. as
41. After the new technique was introduced, the factory produced _____ tractors in 1988 as the year before.
A. as twice many
B. as many twice
C. twice as many
D. twice many as
42. The piano in the other shop will be _____, but _____.
A. cheaper; not as better
B. more cheap; not as better
C. cheaper; not as good
D. more cheap; not as good
43. John plays football _____, if not better than, David.
A. as well
B. as well as
C. so well
D. so well as
44. 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 widely read
45. ___ the day went on, the weather got worse.
A. With
B. Since
C. While
D. As
46.—What was the party like?
—Wonderful. It' s years _____ I enjoyed myself so much.
A. after
B. when
C. before
D. since
47. It was not _____ she took off her dark glasses _____ I realized she was a famous film star.
A. when; that
B. until; that
C. until; when
D. when; then
48. If we work with a strong will, we can overcome any difficulty, _____ great it is.
A. what
B. how
C. however
D. whatever
49. After the war, a new school building was put up _____ there had once been a theatre.
A. that
B. where
C. which
D. when
50._____, Mother will wait for him to have dinner together.
A. However late is he
B. However he is late
C. However is he late
D. However late he is
51. He will come to call on you the moment he ____ his painting.
A. will finish
B. finished
C. has finished
D. had finished
52. ____ difficult the task may be, we will try our best to complete it in time.
A. No matter
B. No wonder
C. Though
D. However
53. It was ____ that she couldn’t finish it by herself.
A. so difficult a work
B. such a difficult work
C. so difficult work
D. such difficult work
参考答案
一、
1. Child as she is, she knows a lot of things. 让步
2. The more I can do for the class, the happier I’ll be.比较
3. He talks as if (as though) he knew all about it.方式
4. He is such a good teacher that the students love and respect him.结果
5.I shall go to the park unless it rains.条件
6. No sooner had I got home than it began to rain.时间
7. Where there is water, there is life.地点
8. He studied hard so that he could catch up with his classmates.目的
9. Since you are very busy, I won't trouble you.原因
10. Even if (though) I fail, I’ll never lose heart.让步
11. Once you begin the work, you must continue.时间
12. I will find her wherever she may be. 让步
13. Now that you've come, you'd better have dinner with us.原因
14. He was so excited that he couldn't fall asleep.结果
15. We must do everything as he tells us.方式
16. India is much bigger than Japan.比较
17. No matter when you come, you are warmly welcome.让步
18. As (So) long as you work hard, you can catch up with the other classmates.条件
二、1. when; 2. as soon as; 3. as; 4. though; 5. Whwerever; 6. because; 7. Since; 8. whenever; 9. Since; 10. because;
11. so that; 12. though; 13. as; 14. that; 15. than; 16. Even if; 17. that; 18. as
三、1~5 CADAC 6~10 ABCBA11~15 DDCAB 16~20 DABAD 21~25 CABBA
26~30 BCCBD 31~35 BACDD 36~40 ADCDD 41~45 CCBAD 46~50 DBCBD
51~53 CDD
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”
状语从句语法讲解
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.360docs.net/doc/243041628.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
语法 状语从句讲解
语法状语从句 由从句担任的状语,在句子中可修饰谓语(或其它动词)、形容词、副词或就是整个句子,它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。 第一讲时间, 地点状语从句 时间状语从句:when, while, as, before, after, since , whenever until, till, by the time(注意时态) as soon as, had hardly…when, had no sooner…than,(on doing sth…) the moment, every time/ each time, the first time, once e、g: When he came, I had cleaned the classroom、 He didn’t stop working until his mother came bake、 He worked until his mother came back、 As soon as he returned, he bought a new flat、 He had no sooner returned than he bought a new flat He came to scene the moment he heard the news、 I thought her nice and honest the first time I met him、 Once he makes up your mind, he won’t change his mind、 It was two years before I met him again、= Two years passed before I met him again、注意点1、when引导的从句动词可以就是延续性的或短暂性的,while引导的从句中动词必须就是延续性的; while有时并不表示时间,而表示对比,表示“而”、“却”。 When I got home I found the door locked、 While(或When)we were working in the fields, it suddenly began to rain、 His pencil is red, while mine is yellow、 2、till与until not…until/till 解释为直到…才…主句动词一般就是短暂性的 …till/until… 解释为直到…为止主句动词一般就是延续性的一般情况下可以互换,但until可以位于句首,till则不能。 He worked until it was dark、 He didn’t stop working until it was dark、 Until it stops raining,the children can’t go out、 ＝Not until the rain stops can the children go out、 地点状语从句 引导地点状语从句的连词就是where 与wherever等。 I ll go wherever the people want me to go、(wherever＝to any place where) He works where his grandfather fought、(where＝in the place where) You must stay where you are、= You must stay in the place where you are、 Wherever you go, I go too、 Where there is water, there is life、(那儿有… 那儿就有… Where there is a will, there is a way、) 圈出其中的从句并翻译: 1.Whenever it is his turn to speak, he gets nervous、 2.Every time he comes, he always tells us something interesting、 3.When I get the news, I will let you know as soon as possible、 4.Once he makes a promise, he will never break it、 5.I had no sooner run into the school gate than I heard the bell for class、 6.I found the lost watch under a desk after the children had left for home、 7.He had to be called two or three times before he came down to dinner、 8.We didn’t notice anything wrong with the washer until we started using it、 9.The hunter made mark on the tree where he stops、 10.Wherever he is, he will find time to do some reading、
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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.
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