高三一輪復(fù)習(xí)專題3：三大從句復(fù)習(xí)課件

1、 三三 大大 從從 句句夏津一中：唐慶超一輪復(fù)習(xí)語法專練一輪復(fù)習(xí)語法專練 從句只能做主句的某一部分從句只能做主句的某一部分,依附于主句依附于主句而存在而存在,不能獨立。不能獨立。 從句也具有句子的特征，即有自己的主從句也具有句子的特征，即有自己的主謂結(jié)構(gòu)；而且?guī)в幸龑?dǎo)詞。謂結(jié)構(gòu)；而且?guī)в幸龑?dǎo)詞。 根據(jù)從句在句中的作用，可分為名詞性根據(jù)從句在句中的作用，可分為名詞性從句、形容詞性（定語）從句和副詞性從句、形容詞性（定語）從句和副詞性（狀語）從句三類。（狀語）從句三類。 例句：例句：He is the boy that I am looking for. 請大家概括一下從句的三要素：請大家概括一下

2、從句的三要素： 1、完整的主謂關(guān)系、完整的主謂關(guān)系 2、恰當(dāng)?shù)倪B接詞、恰當(dāng)?shù)倪B接詞 3、陳述語序、陳述語序（一）、名詞性從句（一）、名詞性從句l 名詞性從句包括主語從句、賓語從句、表語從句和同位語從句。其關(guān)名詞性從句包括主語從句、賓語從句、表語從句和同位語從句。其關(guān)聯(lián)詞有連詞聯(lián)詞有連詞that, if, whether；連接代詞；連接代詞what, who, which和連接副詞和連接副詞when, where, why, how等。等。從句從句連接詞連接詞主語從句主語從句賓語從句賓語從句介詞后介詞后賓語從句賓語從句表語從句表語從句同位語從句同位語從句 that whether ifWh- 詞

3、（含詞（含how) 帶后綴帶后綴ever的詞的詞(二二)連接詞的分類及用法連接詞的分類及用法1. 連詞：連詞：that、whether、if用法：只連從句，不做成分，用法：只連從句，不做成分，that作賓語時經(jīng)作賓語時經(jīng)常省略。常省略。例句：例句：他明天要來這件事是真的。他明天要來這件事是真的。我不知道會議明天能否準(zhǔn)時召開。我不知道會議明天能否準(zhǔn)時召開。 為保持句子平衡，為保持句子平衡， that 引導(dǎo)主語從句時，引導(dǎo)主語從句時，常用常用it作形式主語而把真正的主語從句后置。作形式主語而把真正的主語從句后置。主要有以下幾種情況。例句：主要有以下幾種情況。例句：1、難怪他不餓呢，他吃糖吃了一整天

4、了。、難怪他不餓呢，他吃糖吃了一整天了。It is no wonder that he is not hungry; he has been eating sweets all day.2、據(jù)報道，中國又發(fā)射了一顆人造衛(wèi)星。、據(jù)報道，中國又發(fā)射了一顆人造衛(wèi)星。It is reported that China has sent another man-made satellite.3、明天他來不來這里沒關(guān)系。、明天他來不來這里沒關(guān)系。 It doesnt matter whether he will come here or not tomorrow.4、我突然想到昨天我忘記鎖門了。、我突然想

5、到昨天我忘記鎖門了。 It suddenly occurred to me that I had forgotten to lock the door yesterday. Whether Whether 和和if if 的用法區(qū)別的用法區(qū)別A：主語從句：主語從句B：表語從句：表語從句C：同位語從句：同位語從句D：介詞的賓語從句：介詞的賓語從句E：or not 或或 直接跟不定式（直接跟不定式（to do) 2連接代詞：連接代詞：who, whom, whose, what, which。 用法：既連接從句，又在從句中做成分。（主、用法：既連接從句，又在從句中做成分。（主、賓、表、定）賓、表、

6、定）例句：例句：他現(xiàn)在最需要的是你的陪伴。他現(xiàn)在最需要的是你的陪伴。What he needs most is your company.我不知道明年我會考上那所大學(xué)，但我保證我一我不知道明年我會考上那所大學(xué)，但我保證我一定不會放棄的。定不會放棄的。I dont know which college I will go to next year, but I guarantee that I will never give up. what 和和 which 的區(qū)別。的區(qū)別。 3連接副詞：連接副詞： where, when, why, how 用法：既連接從句，又在從句中做狀語。用法：既連接從

7、句，又在從句中做狀語。例句：例句：我不知道我們會在哪兒開會。我不知道我們會在哪兒開會。I dont know where we are going to have the meeting.我急于想知道的是我們什么時候去參觀博物館。我急于想知道的是我們什么時候去參觀博物館。What Im anxious to know is when we can visit the museum.(二）定語從句復(fù)習(xí)二）定語從句復(fù)習(xí)1.定語從句類型限定性定語從句非限定性定語從句2.定語從句關(guān)系詞關(guān)系代詞 6個關(guān)系副詞 3個關(guān)系代詞 that which who whom whose as關(guān)系副詞 when wh

8、ere why怎樣判斷一個從句是不是定語從句概念：定語從句又叫形容詞性從句，即一個句子修飾一個名詞的結(jié)構(gòu)The boy The boy whowho got injured in the accident got injured in the accident was sent to hospital immediatelywas sent to hospital immediately判斷以下句子是不是定語從句并選擇I advise you to cancel _is unnecessary.He remembered the weekends _ he climbed mountains.

9、We took a picture_ there is a tower.A. What B. when C. that D. where E. which 如何如何判定用關(guān)系代詞還判定用關(guān)系代詞還是用關(guān)系是用關(guān)系副詞副詞?1.Ill never forget the days_ we worked together. 2.Ill never forget the days _ we spent together. 3.I went to the place I worked ten years ago. 4.I went to the place _ I visited ten years a

10、go. 5.This is the reason _ he was late. 6.This is the reason _ he gave. when /in whichWhich/that /省略省略where/ in whichwhy/ for whichthat/whichVt.Vt.Vt.Which/that /省略省略 當(dāng)先行詞為當(dāng)先行詞為all, much, little, few, none, something, anything, everything, nothing等不定代詞時等不定代詞時a.a. AllAll that that can be donecan be d

11、one has been done.has been done.b. I am sure she has b. I am sure she has something something (that) you (that) you can borrow.can borrow.考點二：只用考點二：只用 thatthat不用不用 whichwhich 先行詞被先行詞被all, every, no, some, any, little, much修飾時：修飾時： Ive read all the books (that) you gave me.先行詞是先行詞是序數(shù)詞序數(shù)詞或或形容詞最高級形容詞最高

12、級修飾時。修飾時。 1. This is the best book (that) Ive ever read. 2. This is the first composition (that) he has written in English.先行詞被先行詞被the only, the very, the last the only, the very, the last 修飾時。修飾時。That white flower is the only one (that) I really like.This is the very book (that) I want to find. 當(dāng)有當(dāng)

13、有兩個或兩個以上分別表示人和物的先行詞兩個或兩個以上分別表示人和物的先行詞時，時，這個定語從句要用這個定語從句要用thatthat而不用而不用who (whom)who (whom)和和whichwhich引導(dǎo)。如：引導(dǎo)。如：He talked about the teachers and schools （that） he had visited.用用whichwhich不用不用thatthat1.1.非限定性地語從句非限定性地語從句2.2.在介詞加關(guān)系代詞中在介詞加關(guān)系代詞中1) Do you have anything _ you dont understand?2) The only

14、thing _ we can do is to give you some advice.3) Who is the man _ is standing there?4) She heard a terrible noise， _ brought her heart into her mouth.thatthatthatwhich練一練練一練：that 與與 which填上合適的關(guān)系詞并分析原因填上合適的關(guān)系詞并分析原因：1.The way _he explained the sentence to us was not difficult to understand. 2.The way _

15、he explained to us was quite simple.that/ which/不填不填that/in which/不填不填缺賓語缺賓語考點考點三三：the way用做先行詞用做先行詞缺少主語或賓語缺少主語或賓語:引導(dǎo)詞用引導(dǎo)詞用that / which / 不填不填(缺賓語時缺賓語時)主語賓語都不缺主語賓語都不缺:引導(dǎo)詞用引導(dǎo)詞用that / in which / 不填不填3. What surprised me was not what he said but _ he said it. （湖北）（湖北） A. the way B. in the way that C. i

16、n the way D. the way which高考題鏈接：高考題鏈接：試一試試一試 介詞加關(guān)系代詞介詞加關(guān)系代詞1. Do you know the boy _ _ your mother is talking?2. I still remember the day _ _ I first got to Paris.3. He gave me some novels _ _ I am not very familiar.to whomwith whichon which考點考點四四：介詞介詞+ +關(guān)系詞關(guān)系詞定語從句句首為介詞時定語從句句首為介詞時,后可接的關(guān)系詞為后可接的關(guān)系詞為:介詞

17、介詞+whom / which / whosee.g. I recognized the boss in company my sister was working. 總結(jié)總結(jié)whose介詞的選用原則介詞的選用原則1)根據(jù)定語從句中根據(jù)定語從句中謂語動詞謂語動詞的的習(xí)慣搭習(xí)慣搭 配配來決定。如：來決定。如：This is the camera _ I spent 6 yuan. This is the camera _ I paid 6 yuan. spend money on sth.為固定搭配為固定搭配pay money for sth.為固定搭配為固定搭配on whichfor whic

18、h2)根據(jù)根據(jù)先行詞先行詞的的搭配習(xí)慣搭配習(xí)慣來決定。來決定。如：如：I remember the day _ I came to my tower of ivory.I remember the days _ I visited Paris. 強調(diào)在具體某一天要用介詞強調(diào)在具體某一天要用介詞on強調(diào)在某幾天時間內(nèi)要用介詞強調(diào)在某幾天時間內(nèi)要用介詞duringon whichduring which3) 根據(jù)從句中根據(jù)從句中動詞與先行詞動詞與先行詞的的邏輯關(guān)系邏輯關(guān)系。 Is that the newspaper _ you often write articles?for which3. _

19、 is known to all, he is the best student.As難點一：難點一：as的用法的用法asthatwhich1. It is such a big stone _ nobody can lift.2. It is such a big stone _ nobody can lift it.asthat歸納：歸納：asas引導(dǎo)限制性定語從句先行詞前常被引導(dǎo)限制性定語從句先行詞前常被such, the same, such, the same, so, as so, as 修飾，修飾，即構(gòu)成即構(gòu)成suchsuchas , the same as , the same

20、 as, as, sosoas, as, 結(jié)構(gòu)，結(jié)構(gòu)，asas在定語從句中應(yīng)充當(dāng)成分如：主語、在定語從句中應(yīng)充當(dāng)成分如：主語、賓語或表語。賓語或表語。注意注意asas 與與whichwhich引導(dǎo)引導(dǎo)非限制性定語從句非限制性定語從句都能指代都能指代整句內(nèi)容整句內(nèi)容，The earth is round,_ is known to all._ is known to all, the earth is round.which/ as As1. Ive come to the point where I cant stand him.我已經(jīng)到了無法容忍他的地步了。我已經(jīng)到了無法容忍他的地步了。wh

21、ere引導(dǎo)的定語從句先行詞大多數(shù)情況下是引導(dǎo)的定語從句先行詞大多數(shù)情況下是 表示地點的名詞，但也有特殊情況。表示地點的名詞，但也有特殊情況。難點二：一些特殊詞之后的難點二：一些特殊詞之后的where解析：解析：如果定語從句分別修飾如果定語從句分別修飾point, situation, condition和和case等表示抽象意義的詞，常用等表示抽象意義的詞，常用where 引引導(dǎo)，意思是導(dǎo)，意思是“到了某種地步，在某種境況中到了某種地步，在某種境況中” 。1.We are trying to reach a point _ both sides will sit down together a

22、nd talk. （山東）（山東） A. which B. that C. where D. when2. -Do you have anything to say for yourself? -Yes, theres one point _ we must insist on . （江西）（江西） A. why B. where C. how D. /比較一下：比較一下：不缺成分用不缺成分用wherewhere缺賓語用缺賓語用that/which/that/which/不填不填1. After living in Paris for fifty years he returned to th

23、e small town _ he grew up as a child. (NMET) A. which B. that C. where D. when 2. The film brought the hours back to me_ I was taken good care of in that faraway village.(NMET) A. until B. that C. when D. where3. _ is reported, the storm will last for a long time. _is reported is that the storm will

24、 last for a long time. _is reported that the storm will last for a long time. A. That B. What C. It D. AsDBC4. The car _ owner is a musician is in good condition.(湖北湖北) A. whom B. whose C. that D. which5. I dont like the way_tourists were treated in Sanya.A.on which B. in whichC. in that D. where例析：

25、定語從句易錯點 易錯點一：關(guān)系代詞和關(guān)系副詞的混用易錯點一：關(guān)系代詞和關(guān)系副詞的混用 e.g. 1. Ill never forget the days when I spent in New York with you. 2. Ill never forget the days which I visited New York with you. 易錯點二：固定句式出錯易錯點二：固定句式出錯 e.g. 1. Mary is so lovely a girl as everybody loves her. 2. Mary is so lovely a girl that everybody l

26、oves. 易錯點三：主語和謂語不一致的現(xiàn)象易錯點三：主語和謂語不一致的現(xiàn)象 e.g. 1.Tom is one of the students who likes swimming. 2. Tom is the only one of the students who like swimming. 易錯點四：與強調(diào)句及其他句型的混合易錯點四：與強調(diào)句及其他句型的混合e.g. 1. Was it in the shop that you bought the recorder that you lost your pen?易錯點五：對先行詞概念不明確易錯點五：對先行詞概念不明確e.g. 1.

27、Is this library that you visited yesterday? 2. Is this the library where you visited yesterday? 易錯點六：特殊名詞作先行詞時關(guān)系詞的選取錯誤易錯點六：特殊名詞作先行詞時關(guān)系詞的選取錯誤e.g. 1. I dont like the way which you speak to her. 易錯點七：忽略易錯點七：忽略that和和which引導(dǎo)限定性定語從句的區(qū)別引導(dǎo)限定性定語從句的區(qū)別e.g. 1. This is the most exciting football game which I hav

28、e ever seen. （怎么改）易錯點八易錯點八:介詞前置出錯介詞前置出錯e.g. 1. Tell him all the things on which he should pay attention. (怎么改） 易錯點九：易錯點九：which和和whose意義不明確意義不明確e.g. 1. The book which cover is broken is of great help to all of us. wherethat1.This is the library_I borrowed the book.2.It is from this library_I borrowed

29、 the book. where定語從句定語從句that強調(diào)句型強調(diào)句型綜合考查一：綜合考查一：定語從句與強調(diào)句定語從句與強調(diào)句3. -Where did you last see Mr. Smith? -It was in the hotel_ I lived. A. that B. which C. where D. when難點三難點三.綜合考查綜合考查 近年來，高考對定語從句和其它從句如：強調(diào)句近年來，高考對定語從句和其它從句如：強調(diào)句、名詞性從句和狀語從句等的綜合考查越來越多，這就要名詞性從句和狀語從句等的綜合考查越來越多，這就要求考生有扎實的基礎(chǔ)知識和較強的綜合分析能力。求考生有扎

30、實的基礎(chǔ)知識和較強的綜合分析能力。綜合考查二：綜合考查二：定語從句與同位語從句定語從句與同位語從句1. We all have heard the news_ our team won.2. We dont believe in the news _ he told us yesterday.that that/which/that/which1. We should go to the place_ we are most needed.2. We should go to the place_ needs us most. A. it B. where C. that D. whatBC對

31、比訓(xùn)練對比訓(xùn)練 1. It was October_we met in Damiao for the first time. 2. It was in October_we met in Damiao for the first time. A. that B. which C. when D. whileCA對比訓(xùn)練對比訓(xùn)練 1. He is such a good teacher_ we all like him. 2. He is such a good teacher_ we all like. A. whom B. that C. as D. whichBC對比訓(xùn)練對比訓(xùn)練1.Whi

32、le I was wondering at this, our schoolmaster took his place. ( )2. Where there is a will, there is a way. ( )3. Now that/Since everybody is here, lets begin our meeting. （ ）4. Ill speak slowly so that you can understand me. ( )時間時間地點地點原因原因目的目的5. So clever was he a student that he was able to work ou

33、t all the difficult problems. ( ) 6. As long as you dont lose heart, youll succeed. ( ) 7. Try as he might, he could not find a job. ( ) 8. The old lady treats the boy as if he were his own son. ( ) 9.He woke up as suddenly as he had fallen asleep. ( ) 結(jié)果結(jié)果條件條件讓步讓步方式方式比較比較一個一個_在復(fù)合句中用作狀語時在復(fù)合句中用作狀語時,在

34、語法上叫在語法上叫狀語從句。從句由狀語從句。從句由_ 、_或或_引導(dǎo)。引導(dǎo)。狀語從句可分為：狀語從句可分為：1) _ 2) _ 3) _ 4) _ 5) _ 6) _ 7) _ 8) _ 9) _等等句子句子時間時間地點地點 原因原因目的目的結(jié)果結(jié)果條件條件 方式方式比較比較 讓步讓步名詞詞組名詞詞組從屬連詞從屬連詞副詞副詞一一. 時間狀語從句的引導(dǎo)詞時間狀語從句的引導(dǎo)詞1. when, while , as, before, after, until, till, since, ever since, once, as soon as ，2. every time, next/last/ea

35、ch time, the first time, the moment, the minute, the instant4. hardlywhen, no soonerthan, scarcelywhen3. immediately, instantly, directlywhen, while, as1._ we were talking, Mr. Smiths came in.2._ they came home, I was cooking dinner.3. I was about to go to bed _ I heard someone knock at the door.4.

36、_ we were watching TV, he was studying.5. He is fat _ his brother is thin.6. _ she sang, tears ran down her face.While/ WhenWhenwhenWhilewhileAs連接詞連接詞when、while、as的用法小結(jié)的用法小結(jié)1、when 的用法：的用法：（1）when引導(dǎo)的時間狀語從句的謂語動引導(dǎo)的時間狀語從句的謂語動詞可以是延續(xù)的，也可以是表短暫性動作詞可以是延續(xù)的，也可以是表短暫性動作的動詞，可用于主句和從句動作同時發(fā)生的動詞，可用于主句和從句動作同時發(fā)生或從句動作先于

37、主句動作。如：或從句動作先于主句動作。如： When the film ended, the people went back. When I lived there, I used to go to the seashore on Sundays.（2）可用作并列連詞，其意義為）可用作并列連詞，其意義為“那那時，這時時，這時”，相當(dāng)于，相當(dāng)于and at this/that time。常用于句式：。常用于句式：Somebody was doing something when Sb. was about to do sth. when (剛要剛要這時突然這時突然)2、連接詞、連接詞while

38、的用法的用法 （1） while意思是意思是“當(dāng)當(dāng)?shù)臅r候的時候”或或“在某一在某一段時間內(nèi)段時間內(nèi)”，引導(dǎo)的從句動作必須是持續(xù)性的，引導(dǎo)的從句動作必須是持續(xù)性的，側(cè)重主句動作和從句動作相對比。側(cè)重主句動作和從句動作相對比。 People dont talk so loudly while others are working.（2）從句和主句的謂語動詞都為延續(xù)性動詞時）從句和主句的謂語動詞都為延續(xù)性動詞時, 只能用只能用while; while還可作并列連詞還可作并列連詞,表示表示”而而”. I was reading while he was watching TV.（3）引導(dǎo)讓步狀語從句引

39、導(dǎo)讓步狀語從句( (句首）句首）3as 的用法：的用法：(1) as 著重強調(diào)主句和從句的動作同時或幾著重強調(diào)主句和從句的動作同時或幾乎同時發(fā)生，如：乎同時發(fā)生，如： The students rose as the teacher entered the classroom. (2)as還可以表示還可以表示“隨著隨著”，如：，如： As time goes by, it is getting colder and colder.(3) As 還能表示還能表示“一邊一邊一邊一邊”，如：，如： He looked behind from time to time as he went.befor

40、e,after,since1.He had left the town the day _ she arrived.2.It was not long _ he left his hometown.3.I played football _ I (had) finished my homework4.Please tell her Ill come _ I do some shopping.beforeafterbeforeafter5. It will not be long _ we meet each other again.6. I _ (be) at his bedside sinc

41、e he _ (become) ill.7. It _ (be) two years since we _ (begin) to use this machine.beforehave beenbecameis/ has beenbeganConclusion:1）句型）句型It will be/was一段時間一段時間before “還要過多久才還要過多久才” 如：如： It will be two years before he leaves the country.2）句型）句型It will be/was not一段時間一段時間before “不多久就不多久就”，如：，如： It was

42、 not long before he worked out the problem.3）句型）句型It be一段時間一段時間since ,該句型該句型主句和從句中動詞謂語時態(tài)的搭配很嚴(yán)格。主句和從句中動詞謂語時態(tài)的搭配很嚴(yán)格。It is/has been since sb. did sth. 如：如： It is three years since she joined the army.從句動詞為瞬間動詞，表示從句動詞為瞬間動詞，表示“自自以來，以來，已經(jīng)過去多長時間了已經(jīng)過去多長時間了”。It is four days since she was ill.從句謂語動詞為延續(xù)性動詞，表示從

43、句謂語動詞為延續(xù)性動詞，表示“自自結(jié)束以來，已經(jīng)過去多長時間了結(jié)束以來，已經(jīng)過去多長時間了”。till 與與until:1. He lived with his parents _ he graduated from college.2. Not _ he told me did I know the truth.3. The children _ (will come) home until/ till its dark.4. It was _ the war was over that he returned to his land.till/ untiluntilwont comenot

44、 until小結(jié)：小結(jié)：till, until和和notuntil：1.until/till引導(dǎo)時間狀語從句用于肯定句時，引導(dǎo)時間狀語從句用于肯定句時，主句的動詞是延續(xù)性動詞，表示動作或狀主句的動詞是延續(xù)性動詞，表示動作或狀態(tài)一直持續(xù)到態(tài)一直持續(xù)到until/till所表示的時間，意為所表示的時間，意為“某動作一直延續(xù)到某時間點才停止某動作一直延續(xù)到某時間點才停止”。如：如： We waited until he came. 2用于否定句時，主句謂語動詞是非延用于否定句時，主句謂語動詞是非延續(xù)性動詞，從句為肯定，意為續(xù)性動詞，從句為肯定，意為“某動作某動作直到某時間才開始直到某時間才開始”。如

45、：。如： He wont go to bed till/until she returns.3till不可以置于句首，而不可以置于句首，而until可以。如：可以。如： Until you told me I had no idea of it.4notuntil句型中的強調(diào)和倒裝說法：句型中的強調(diào)和倒裝說法： It was not until you told me that I had any idea of it. Not until you told me did I have any idea of it.一一就就ill. 1._ he saw the monster, he tur

46、ned pale.2、 The spy had _ returned home than he was told to go to another country.3、We had _returned home when it rained.4、_ had we begun when we told to stop.The moment/ minute/ Immediately/no soonerhardly/scarcelyHardly/ ScarcelyAs soon as5) no soonerthan hardly/scarcelywhen 剛剛就就A. 時態(tài)：主句用時態(tài)：主句用過去完

47、成時過去完成時（had + p.p.） 從句用從句用一般過去時一般過去時B. 倒裝：倒裝： no sooner/hardly/scarcely放句首，放句首，主句主句要到裝要到裝二二. 地點狀語從句地點狀語從句:where, wherever，no matter where You would let your children play where you can see them.Wherever you are, I will be right there waiting for you.區(qū)分：區(qū)分： wherever，no matter where1.The Red Cross is

48、expected to send help_there is human suffering.A.whoever B.however C.whatever D.wherever 2.-Mom，what did your doctor say？ -He advised me to live_the air is fresher. A.in where B.in which C.the place where D.where D D三、三、 原因狀語從句原因狀語從句原因狀語從句的引導(dǎo)詞有：原因狀語從句的引導(dǎo)詞有：because, as, sincenow that（既然）（既然）, conside

49、ring that（考慮到）（考慮到）, seeing that（鑒于）（鑒于）用用because, as, since 與與for填空填空:1.-Why are you crying, Tom? - _ Ive broken your necklace, mom.2. I went to bed early _ I was tired.3. I was not kind to him_ he was rude.4. _ I had a cold, I was absent from school.5. My mother was ill and I sent for Tom, _ he wa

50、s a doctor.6. _ we are all here, lets begin our class.BecausebecausebecauseAsforSinceConclusion:1.because直接原因直接原因，非推斷語氣最，非推斷語氣最強回答強回答why2.since表示表示“既然既然”，語氣較弱；強調(diào)對方，語氣較弱；強調(diào)對方已經(jīng)知曉，無需加以說明的原因，只可以已經(jīng)知曉，無需加以說明的原因，只可以放在句首。放在句首。3.As“由于由于”，語氣最弱，表示往往是十分，語氣最弱，表示往往是十分明顯的原因，常放在句首，比較口語化。明顯的原因，常放在句首，比較口語化。4.For 放句中

51、，放句中，對前面一句話的內(nèi)容的補充對前面一句話的內(nèi)容的補充說明說明 。 四四. 條件狀語從句條件狀語從句:引導(dǎo)條件狀語從句的連接詞有引導(dǎo)條件狀語從句的連接詞有:if, unless, as/ so long as（只要）（只要）, in case,on condition that(條件條件.), provided (that) (假設(shè)），等假設(shè)），等 1、The WTO cannot live up to its name _ it does not include a country that is home to one fifth of mankind. Aas long as Bwh

52、ile Cif Deven though2、 It is known to all that _ you exercise regularly, you wont keep good health. A. unless B. as long as C. although D. if Conclusion:1.條件狀語從句中條件狀語從句中,如果主從句都表將來動作，如果主從句都表將來動作，主句用將來時態(tài)，從句用一般現(xiàn)在時態(tài)主句用將來時態(tài)，從句用一般現(xiàn)在時態(tài). If you dont hurry up, you will miss the plane.2、unless 相當(dāng)于 if not，意思是“

53、除非”“如果不就”。We cant get there on time unless we book the earliest flight.= We cannot get there on time if we dont book the earliest flight.as/so long as, in case1、I always take something to read when I go to the doctors _ I have to wait. 2、Ill go _ you go.in caseas/so long as1、You can have my bicycle

54、for a fewdays _ you return it by Sunday.2、 _ anything importanthappens, please call me up.3、 _ you had one million dollars, what would you do? on condition thatIn caseSuppose/Supposing on condition that：條件是：條件是 in case :萬一萬一 supposesupposing (that): 假設(shè)，如果假設(shè)，如果五、讓步狀語從句五、讓步狀語從句1.He went out, _ it was

55、raining.2._ they are poor, they buy a great many books.3.Child _ he is, he has learnt advanced mathematics.though/althoughAlthoughasthough, although, even if/ though, while, no matter, whatever, however, as_he is a child, he has learnt advanced mathematics.No matter _ happens, dont be discouraged.No

56、 matter _ hard he tried, he couldnt open the door.No matter _ you go, you must write to your parents.No matter _ you marry in the future, he must be an honest man.howwherewhowhatEven ifthough/ although1、一般可互換：、一般可互換：主句前可用主句前可用yet, still, 常省略常省略 但不能與但不能與but連用。連用。 Though/ although it sounds strange, （

57、yet） it is true.2、倒裝句、倒裝句和和獨立副詞放句末獨立副詞放句末只能用只能用though. Strange_ it may seem, heremained single all his life. It was hard work, I enjoyed it, _.thoughthoughas引導(dǎo)讓步狀語從句引導(dǎo)讓步狀語從句,表示表示“盡管、雖然盡管、雖然”。但從句要倒裝。句型為：但從句要倒裝。句型為： adj./adv./單數(shù)單數(shù)n.(不加冠詞不加冠詞)/v+as+主語主語+謂語謂語 1、Young as she is, she can help her mother.

58、2、 Fast as he runs, he is the last one. 3、Try as you may, you might fail as well.六、目的狀語從句六、目的狀語從句引導(dǎo)目的狀語從句的引導(dǎo)詞有：引導(dǎo)目的狀語從句的引導(dǎo)詞有：so that, in order that (為了）為了）for fear that（以免，（以免， 以防）以防）1.He got up early _ he could catch the bus.2._ he could catch the bus, he got up early.3.I stayed at home all day _ y

59、ou called.in order that/ so thatIn order thatso that, in order that ,for fear that, in casefor fear thatConclusion:1、目的狀語從句中的謂語動詞常與情態(tài)動詞、目的狀語從句中的謂語動詞常與情態(tài)動詞can, could, may, might, should等連用。如：等連用。如： Take this medicine so that you can recover soon.2、in order that 常用于正式文體，可放于句首，常用于正式文體，可放于句首，也可放于句中；而也可放

60、于句中；而so that往往只放于句中。往往只放于句中。3、目的狀語從句可以和動詞不定式互換。如：、目的狀語從句可以和動詞不定式互換。如： Well sit in front of the hall so that/in order that we can hear better.= Well sit in front of the hall _ _ hear better.so as to/in order to七、結(jié)果狀語從句七、結(jié)果狀語從句結(jié)果狀語從句的引導(dǎo)詞有：結(jié)果狀語從句的引導(dǎo)詞有：so that, sothat, suchthat1、I was caught in a shower