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1、狀語(yǔ)從句可以根據(jù)其用途分為: 時(shí)間狀語(yǔ)從句、地點(diǎn)狀語(yǔ)從句、原因狀語(yǔ)從句、結(jié)果狀語(yǔ)從句、目的狀語(yǔ)從句、條件狀語(yǔ)從句、讓步狀語(yǔ)從句,初中階段常見(jiàn)狀語(yǔ)從句用法見(jiàn)下表:,注意: 1在條件和時(shí)間狀語(yǔ)從句中應(yīng)用一般現(xiàn)在時(shí)態(tài)表示將來(lái)。 2though與but;because與so不能用在同一個(gè)句子中。 3while引導(dǎo)時(shí)間狀語(yǔ)從句時(shí),從句中的謂語(yǔ)動(dòng)詞必須是延續(xù)性動(dòng)詞。 4tooto與sothat與enough to do sth.之間可互換。 5if條件從句可與“祈使句and/or”互換。如: If we dont hurry,well miss the train. Hurry up,or well mi
2、ss the train. 【例1】 Mark isnt coming to the concert _ D _ he has got too much work to do. Aso Buntil Calthough Dbecause 點(diǎn)撥:“太多工作要做”是“沒(méi)有來(lái)音樂(lè)會(huì)”的原因。,when before as soon as notuntil If unless,常見(jiàn)的使用“主將從現(xiàn)”原則的連詞有: 表示時(shí)間的when, while, after, before, until, till, whenever, as soon as, as long as, once 等; 表示條件的if
3、 (如果), unless, so long as, in case等。 if 有兩個(gè)意思,作“是否”講時(shí),引導(dǎo)賓語(yǔ)從句,意同whether,從句的時(shí)態(tài)由事實(shí)決定;作“假如,如果”講時(shí),引導(dǎo)條件狀語(yǔ)從句,此時(shí)若主句為將來(lái)時(shí)、祈使句或有情態(tài)動(dòng)詞時(shí),從句用一般現(xiàn)在時(shí),When he came in, I was cooking. 他進(jìn)來(lái)時(shí),我在做飯。 He came in while I was cooking. She sang as she worked. 一邊一邊 When + 短暫性動(dòng)詞(常+一般過(guò)去時(shí)) While + 持續(xù)性動(dòng)詞(常+過(guò)去進(jìn)行時(shí)) As 動(dòng)作銜接緊密,表“伴隨”,1.w
4、hen,while,as “當(dāng)時(shí)”,while 的其他含義: While I was walking down the street, I came across an old friend. ( while =_) He likes pop music, while I am fond of folk music. ( while =_),when,but,2. before 在前 It will be half a year before I come back. I had finished my homework before my father came back. After 在之
5、后 After I had finished my homework,my father came back.,3.since “自從”(常用于現(xiàn)在完成時(shí),其引導(dǎo)的從句常用過(guò)去時(shí)。) 從他離開(kāi)后我們沒(méi)見(jiàn)過(guò)面。 We havent seen each other since he left. 4.as soon as”一就” 我一回來(lái)就給你打電話。 Ill call you as soon as I come back. 主將 從現(xiàn),5.notuntil “直到才” 我將不會(huì)離開(kāi)直到他回來(lái)。 I will not leave until he comes back. 主將 從現(xiàn) I did no
6、t leave until he came back.,練一練,1._ he comes here tomorrow, I will call you. 2._ he was walking in the street, he met Tim. 3.She sang _she worked.,When,While/When,as,4.I ll ring you up _I get to Beijing.,as soon as,5.It wont be long _he finishes his writing. 6._ he had finished his work, he left the
7、re. 7.It is two years _he came here. 8._she told me, I had no idea of what they had said .,before,After,since,Until,二. 地點(diǎn)狀語(yǔ)從句 地點(diǎn)狀語(yǔ)從句由where, wherever等引導(dǎo)。例如: Where there is a will,there is a way. You can take a walk wherever you like to.,三 原因狀語(yǔ)從句 通常由because,since,as,for 引導(dǎo) 所表示的語(yǔ)氣由becausesinceasfor逐漸減弱
8、。,because表直接原因,有很強(qiáng)的因果關(guān)系,回答 “why”的提問(wèn),since表很明顯的原因,“既然”常放句首,as表明顯原因,語(yǔ)氣較弱。for放句中,補(bǔ)充說(shuō)明原因。,Eg: -Why are you late? -Because my car is broken. Since you cant answer this question, I will call others. As its raining,we should stay here. You cant see the teacher,for he isnt in.,1. _he was ill, he didnt go to
9、 school. 2._ you do not understand, I will explain again. 3._she was late for class, she had to say sorry. 4. He must be ill, _he is absent today.,Because,Since,for,練一練,As,5. I eat potatoes _I like them. 我吃土豆是因?yàn)槲蚁矚g土豆。 6. _I didnt know the way, I asked a policeman. 我由于不知道路,因而問(wèn)警察。 7. _you wont help me
10、, Ill ask someone else. 你既然不幫我,那我就請(qǐng)別人幫我。,because,As,Since,because of和because的區(qū)別 because of后加名詞代詞或動(dòng)名詞,不加句子,而because加句子,例: Because of his illness, he didnt go to work. 因?yàn)樯?,他沒(méi)上班。 Because he was ill, he didnt go to work.,連接詞:,if , unless,If I have a lot of money,I will buy a big house.,主將從現(xiàn),四 條件狀語(yǔ)從句,如果
11、,除非,The sports meeting will continue,unless it rains tomorrow.,_ you touch an English person, you should say “sorry”.,If,練一練,2. Dont touch anything _ your teacher tells you to.,unless,when before as soon as notuntil If unless,so that/ in order that引導(dǎo)目的狀語(yǔ)從句,從句 中常用情態(tài)動(dòng)詞may(might)/ can (could) /should.
12、Eg:我提高聲音以便每個(gè)人都能聽(tīng)見(jiàn)我。 I raised my voice so that everyone could hear me. 我起床早是為了能趕上早班車。 I got up early so that I could catch up the early bus.,They set out early _ they might arrive there in time. 2. Id like to arrive 20 minutes early _ I can have time for a cup of tea. A. as soon as B. as a result C.
13、in case D. so that,so that (in order that),練一練,sothat/suchthat Eg:他是如此的興奮以至于說(shuō)不出一個(gè)字。 He was so excited that he couldnt say a word. 他講了一個(gè)如此有趣的故事,以至于我們忘 了時(shí)間。 She told us such an interesting story that we all forgot the time. 當(dāng)n.前有many或much修飾時(shí),用so而不用such。,sothat的so后面跟形容詞或副詞;such 在主句中修飾名詞,1. It is _good
14、a story that Ill never forget it. 2. It is _ a good story that Ill never forget it.,so,such,練一練,七. 讓步狀語(yǔ)從句 讓步狀語(yǔ)從句,表示“雖然,盡管,即使”等概念,常用的關(guān)聯(lián)詞有:though, although, even though等。 他雖然有病,但仍然繼續(xù)工作。 Though he was ill, he was still working. 此事雖難,但我們還是要做。 Although it is difficult, we shall do it. 即使你這樣說(shuō),我也不信。 Even t
15、hough you say so, I do not believe it.,though和although可以互換,只是although比較正式。 though不可以與連詞but連用,但可以與yet,still連用, 例:雖然他很努力,但還是沒(méi)通過(guò)考試。 Though he worked hard, he couldnt pass the exam.,_he is old , he works hard. 2. _you say so, I dont believe it.,Although / Though,Even though,練一練,比較狀語(yǔ)從句常用than或asas引導(dǎo)。 than
16、表示兩者的比較,asas表示程度相同 我比TOM高。 Im taller than Tom 他和我跑得一樣快。 He runs as fast as I,is,do,1. He doesnt work as hard _you do. 2.She did worse in the test _she expected.,as,than,練一練,九. 方式狀語(yǔ)從句 方式狀語(yǔ)從句由 as引導(dǎo)。eg: Do as Romans do. 入鄉(xiāng)隨俗 如我告訴你那樣做。 Do as I told you. 按你喜歡的方式去做。 Do as you like.,( )1. If he _harder nex
17、t time, he will catch up with us. A. work B. worked C. works D. will work ( )2. I think WeiHua will be very happy when she _your presents. A. looksB. will look C. receives D. will receive,C,C,Exercise,( )3. Well set out as soon as our monitor _. A. comeB. comes C. will comeD. has come ( )4. Ill go w
18、ith you if it _fine tomorrow. A. has beenB. is C. will be D. be ( )5. Ill meet him at the station when he _. A. will returnB. return C. returns D. returned ( )6. I wont go to see the film tonight, because I _ my ticket. A. lost B. have lost C. will lost D. didnt have,B,B,C,B,( )7. Are you going to visit the farm tomorrow? Yes. But if it _, well stay at school. A. rainB. rained C. rainsD. will rain ( )8. Please dont stand up in class until you _. A. were told to B. are told to C. were told D. are told ( )9. They wont be back until the work _. A . do B. does C. is done D. will do ( )10. Xia
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