状 语 从 句
时间状语从句 条件状语从句 原因状语从句 结果状语从句 让步状语从句 as, while用法的归纳 省略现象
1.了解状语从句的分类情况及各种状语 从句中经常使用的连词 2.能够在真实的语境中判定从句与主句 的逻辑关系,从而能够使用恰当的连 词完成交际. 3.能够辨别同类状语从句中近似连词的 用法区别.
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。
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。
常见考点： 考点一、主句与从句的时态呼应问题； 考点二、连接词的选择（注意区别几组连接词： while / as / when引导时间状语从句； because / since / as / for引导原因状语从句； if / unless引导条件状语从句； so…that / such…that引导结果状语从句等）； 考点三、状语从句与非谓语动词之间的替换； 考点四、状语从句的倒装结构 （hardly / scarcely…when；no sooner…than 等）
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（由名词词组充当引导词）： the moment ,the minute, the second, the instant,etc. (一…就…); every time, each time, the last time, the first time, etc.
3. 副词类（由副词充当引导词）：immediately, directly, instantly, etc. (一...就...) e.g. I will give you an answer immediately I finish my work.
4.句型类：no sooner…than…, hardly/scarcely… when…, etc. (一…就…) e.g .Scarcely had he gone when she appeared. 注意:用于句首时应引起部分倒装, 且前部分一般 用过去完成时
1 (1998上海) I thought her nice and honest _____ I met her. A first time B. for the first time C. the first time D. by the first time 2 He hurried out of the room ____ the meeting was over. A the moment B. a moment ago C. after a minute D. minute after 3.Dr. Bethune began to work ___ he arrived at the front. A. immediately B. by the time
C. before D. at the moment 4.He _____to the lab than he set out to do the experiment. [?99上海] A．has no sooner got B．no sooner got C．will no sooner get D．had no sooner got
5 His father began to work ______his childhood. A. since B. before C. as early as D. while
6 ---- What was the party like? ---- Wonderful. It?s years ___ I enjoyed myself so much. A. after B. before C. when D. since 7 (2000) Someone called me up in the middle of the night, but they hung up ____ I could answer the phone. A. as B. since C. until D. before
8 The roof fell _____he had time to dash into the room to save his baby. A. before B. as C. after D. until
9.Scientists say it may be five or ten years _______it is possible to test this medicine on human patients. A. since B. before C. after D. when 10．It_____ long before we _____the result of the experiment . [?02上海春招] A．will not be ;will know B．is; will know C．will not be ; know D．is; know
? 我们来这两年了 ? 两个月他才能回来。 ? It is/ has been two years since we arrived here. ? It will be two months before he comes back.
(NMET 99) ---- I’m going to the post office. ---- ___ you’re there, can you get me some stamps? A. As B. While C. Because D. If
用when, as, while 完成下列句子
When the lesson was over 下课的时候), we ________________________( began our writing.
as he walks （边走）. John sings________________
While we were watching TV （我们看电视的时 _________________________ 候）, he was writing a composition.
注意: 几种常用when的句型: be doing sth. when… be about to do sth. when… be on the point of doing sth. when…
主句表示的是一个短暂性动作， when/while/as he was reading.从句表示的是一个持续性动作 He fell asleep _____________ while he was writing. 主、从句表示两个同时进行的持续性动作，且强调 I kept silent ______ 主句表示的动作延续到从句所指的整个时间
as she went along. 同时进行, “一边…一边” She sang ____
when/as we arrived. 主句--持续性动作, 从句---短暂性动作 It was raining hard ________
主从句--几乎同时发生的短暂性动作 when/as I thought of it just __________you opened your mouth.
Things are getting better and better _____ as time goes on. 正在发展变化的情况, “随着” when it snows. It?s cold _____ “每当…的时候”(暗示一种规律性)
I will go home _____ when he comes back. 有先后顺序 when it began to rain. 表示“这时(突然)” We were about to start ______ while she likes tea. “而”、“却”(表示对比) He likes coffee, _____ As/When a boy, he lived in Japan. __________ as / when +名词，构成省略句,while无此用法 When/While __________ reading, he fell asleep. when / while +现在分词/介词短语/形容 When/While ____________ in trouble, ask her for help. 词等构成省略句，但 as 一般不这样用
1 When he comes _____ (come) back, please tell him to meet me at my office. comes 2 I will tell him when she _______back. 3 I would tell him when she ______back. came 4 ---When ____ you come to see me,Dad? ---I will go to see you when you ____ the training coursing. A.do; will have finished B.will; will finish C.do; are finishing D. will; finish
１．作并列连词，意为“然而，却”，表对比 He likes football while his brother likes basketball. 2. 引导时间状语从句 While he was doing his homework, his mother came
３.引导让步状语从句，表“虽然，尽管”，置于句 首While I admit his good points, I can see his shortcomings.
４．引导条件状语从句，表“只要” I’ll do everything for you while you are happy.
? 引导词：where，wherever ? I?ll go wherever he goes. 他去哪我就去哪. ? I?ll go where he went. 我要去他去的地方.
? ---Can you tell me ____ you are from? ? ---It is not important _____ I came from. ? A.when;whenever B.where ;wherever C.the place ;where D.wherever;where
地点状语从句与定语从句的区别 1.---Where do you plan to work? ---I?ve made up my mind to go _____I?m most needed. A.to the place B. to which C.that D. where 2.I will go to a country for a holiday ____ there are a lot of flowers and trees. A.in the place B.where C.which D.wherever 辨析: Go back where you came from. Go back to the village where you came from.
1. 引导词: if, unless, as long as (=so long as只要) , in case
(that) (以防万一;如果 ), on condition that(条件是,在…的条件 下 ), if only(要是...多好 ), only if(只要), supposing/ suppose(假设 ) etc.
用if和unless填空 unless you hurry up. ⑴. You?ll miss the train _______ You?ll miss the train _____ you don?t hurry up. if unless ⑵. Don?t touch anything __________ your teacher tells you to. if You can touch it ________ your teacher tells you to.
If city noises ___ from increasing, people ____ shout to be heard even at the dinner table 20 years from now . (NMET1992) A are not kept ;will have to B are not kept ; have to C do not keep ;will have to D do not keep; have to
注意：在if, unless, as long as等引导的条件状语 从句中，用一般现在时代替将来时
1. John may phone tonight．I don?t want to go out ____ he phones．（NMET 2000，春季） A．as long as B．in order that
C．in case D．so that
2．I should stay in the hotel all day _____ there is news of the missing child．(NMET 2000上海春季） A．in case B．no matter
C．in any case D．even since 3．I don?t think I?ll need any money but I?ll bring some ____ ．（NMET 2000） A．at last B．in case C．once again D．in time
4 I can tell you the truth _______ you promise to keep a secret.
A.in case B. on condition that C.so that D. while
由though, although, as (虽然尽管), even if, even though, wh-ever, no matter wh-, whether引导.
Although ________most of the people agreed, some were not
willing to accept. as Proud ______the noble is, he is afraid to see me. We wouldn’t lose heart ________we should fail ten even if times.
n./adj./adv./v +as +主语＋谓语 Young as he is, he can read and write in several foreign languages.
Child as he was, he had to support the family. （表语名词提前并常省去冠词）
1 __________, his idea was accepted by all the people at the meeting. (2007重庆) A. Strange as might it sound B.As it might sound strange C. As strange it might sound D. Strange as it might sound 2. ____ tomorrow, our ship will set sail for Macao. (2007上海春)
A. However the weather is like
B. However is the weather like C. Whatever is the weather like
D. Whatever the weather is like
3. ____________, he talks a lot about his favourite singers after class. (2005重庆) A. A quiet student as he may be B. Quiet student as he may be C. Be a quiet student as he may D. Quiet as he may be a student 4. ________ he has limited technical knowledge, the old worker has a lot of experience.(2006全国1) A. Since B. Unless C. As D. Although 5. _________, I have to put it away and focus my attention on study this week.(2004上海春) 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
6. _______ I don?t like art, I find his work impressive. (2007山东)
A. As B. Since C. If D. While
7 ---Dad, I?ve finished my assignment.
---Good, and ______ you play or watch TV, you mustn?t disturb me. (2003上海) A. Whenever B. whether C.whatever D.no matter 8. _______, Carolida couldn?t get the door open.
A. Try as she might C. She might as try B. As she might try D. Might she as try
引导词: because, as, since, now that(既然), considering that(考虑到,既然) etc.
用because, as, since 填空
1. 在强调句中强调原因状语从句，只能用because引导， 不可用as或since. because he was ill that he didn’t go with us. It was ________
2. because可以引导表语从句,而as, since不可以，这时主语一般 都是it, this, that because he is too lazy. It’s_________ 3. since表示“既然”，只能放主句前. _______ Since we have no money, we can’t buy that vase.
1 ____ you've got a chance, you might as well make full use of it.(NMET 99)
A. Now that B. After C. Although D. As soon as
2. A man cannot smile like a child, ____ a child smiles with his eyes, while a man smiles with his lips alone. (2006湖南) A. so B. but C. and D. for
用so , such填空： There were ____ so many people in the room that we could not get in.
such an excellent speech that He made _____ every one admired him. so lovely a girl that everyone in her She is ____ class likes her. such poor furniture that others cannot He has _____ find a place to sit.
注意: 1. so…that… 与such…that… 的区别
so +adj./adv. +that so +adj. +a/an +可数名词单数+ that so +many/much/few/little+名词+that e.g. It is so hot that we can’t sleep. It is so interesting a book that she has read it twice. such +a/an+adj.+单数可数名词+that such +adj. +复数名词/不可数名词+that such +a lot of/lots of +名词+that It is such an interesting book that she has read it twi There was such delicious food that he had too much.
2. such/so…that…与such/so… as …的区别 that no one dares to They have such a fierce dog _____
go near their house.
as bites whoever They have so fierce a dog _____ passes by their house. This is so heavy a stone ___ no one can lift it. A.as B.that Cwhich Dwhat as I can’t lift. This is such a heavy stone ____
This is such a heavy stone ____ that I can’t lift it.
引导词：so，so that，in order that, for fear that(以免,以 防,惟恐)等。其谓语动词常与情态动词can，could，may， might，should，would连用。 1.I?d like to arrive 20 minutes early_____ I can have time for a cup of tea. A.as soon as B.as a result C.in case D.so that 2 The Shanghaiese are making great efforts to beautify the city____ more overseas companies will come. A.in order that B.so as to C.so long as D.on condition that
引导词:as(象….一样,正如),as if/as though(好象, 宛如) 1 Just ____water is to fish, so air is to man. A.since B.what C.like D.as 2 Reading is to mind ____ food is to the body. A.that B.what C.as D.like
Leave it as it is. 事实上,按现在的样子 按原样子 He stated the facts as they were. He is ,as it were, a walking dictionary.
引导词:as….as(和…一样), not as/so…as(不如), the more…the more…(越…越…). than(比),
Scientists generally agree that the Earth?s climate will warm up over the next 50 to 100 years____ it has warmed in the 20,000 years since the Ice Age. A.so long as B.as much as C.as long as D.as well as
2.It is generally believed that teaching is ____ it is a science. A.as art much as B.much an art as C.as an art much as D.as much an art as
１．可引导定语从句 As is known to all, China is a great country. ２．可引导时间状语从句,表 “一边… ,一边…” She cried as she got off the bus. ３．可引导原因状语从句,表 “因为” We shall not go to the park as it is raining. ４．可引导让步状语从句,表 “虽然,尽管” Surrounded as they were by the enemy, they managed to get out. ５．可引导方式状语从句,表 “按照” Do as you are told to. ６．可引导比较状语从句, 表 “和…一样…” He answers as quickly as his sister does.
Once ________seen, the film can never be forgotten. (it is )
If ________invited, (I am) I will go to the party. (she was) She stood at the school gate as if ________ waiting for someone. When ______necessary, (it is ) I will buy a TV set. If ______ (it is) possible, you’d better come tomorrow.
1 ---I hear Johnson was badly injured in the accident.
---____ , let’s go and see him. A. What’s more B. If so
C. Where possible
D. When necessary
2 A beam of light will not bend round unless____ to do so with the help of a reflecting device. A. having been made C. made B. being made D. you make
3 Careful surveys have indicated that as many as 50 percent patients do not take drugs ____ directed. A.like B. so C. which D. as
As引导方式状语从句即as( they are) directed.
1.When she saw the jewels, she jumped with joy.
Seeing the jewels, she jumped with joy. 2. As he was ill, he went home.
Being ill , he went home.
3. As they are led by the party the people have greatly improved their living conditions. Led by the party,---------4. As he was filled with new ideas, the young man invented many kinds of modern machines. Filled with new ideas,……. 5. As he didn’t know what to do , he asked me for help. Not knowing what to do, -----6. The park looks very beautiful when it is seen from the hill. Seen from the hill, the park looks very beautiful.