since用法小結(jié)24588

1、【精品文檔】如有侵權(quán)，請(qǐng)聯(lián)系網(wǎng)站刪除，僅供學(xué)習(xí)與交流since用法小結(jié)24588.精品文檔.Since 用法小結(jié)  一Since作為介詞，后接某一確定的時(shí)間點(diǎn)，主句謂語(yǔ)動(dòng)詞是持續(xù)性動(dòng)詞，常與現(xiàn)在完成時(shí)態(tài)、現(xiàn)在完成進(jìn)行時(shí)態(tài)或過(guò)去完成時(shí)態(tài)連用。例如：    1、He left the village in 1982 and I havent seen him since then.1982年他離開(kāi)這個(gè)村子，從那以后我再?zèng)]見(jiàn)過(guò)他。    2、Shes been working in a bank since leaving sch

2、ool.她中學(xué)畢業(yè)后就一直在一家銀行工作。    3.He had spoken to her only once since the party. 自從那次聚會(huì)以來(lái)，他只跟她說(shuō)過(guò)一次話。    二Since作為副詞，表示從過(guò)去以來(lái)、以后或到現(xiàn)在的情形或狀態(tài)，常與現(xiàn)在完成時(shí)態(tài)連用。例如：    1He left home two weeks ago and we havent heard from him since. 他兩周前離開(kāi)了家，到現(xiàn)在我們一直沒(méi)有他的消息。    2

3、He came to Zhenjiang 6 years ago and has lived here (ever) since.他6年前來(lái)到鎮(zhèn)江，從此便住在這里。    三since引導(dǎo)原因狀語(yǔ)從句    作為連詞，since可引導(dǎo)原因狀語(yǔ)從句，表示因?yàn)椋患热?；鑒于：例如：    1  He didnt come since he was busy.他因?yàn)槊?，所以沒(méi)有來(lái)。    2  Since this method doesnt work, lets

4、 try another.既然這種方法不行，我們就試用另一種吧。    四Since引導(dǎo)時(shí)間狀語(yǔ)從句    1若since引導(dǎo)的狀語(yǔ)從句的謂語(yǔ)是終止性動(dòng)詞的過(guò)去時(shí)，則從句表示的時(shí)間是“從動(dòng)作開(kāi)始的那一時(shí)刻起”。例如：    He has studied very hard since he came to our school.自從他來(lái)到我們學(xué)校，他學(xué)習(xí)就非常努力。    We have been missing them since they left here自從他們離開(kāi)

5、這里，我們就一直很想念他們。    2若since引導(dǎo)的狀語(yǔ)從句的謂語(yǔ)動(dòng)詞是持續(xù)性動(dòng)詞或表示狀態(tài)動(dòng)詞的過(guò)去時(shí)時(shí)，則從句表示的時(shí)間是“從動(dòng)作或狀態(tài)結(jié)束時(shí)算起”。例如：    I havent heard any noise since I slept. Sleep 為持續(xù)性動(dòng)詞，sleep的動(dòng)作結(jié)束時(shí)，即“醒來(lái)”時(shí)，所以這句應(yīng)譯為“我醒后還未聽(tīng)到任何聲音”。    3若since引導(dǎo)的狀語(yǔ)從句的謂語(yǔ)為持續(xù)性動(dòng)詞的現(xiàn)在完成時(shí)，則表示動(dòng)作和狀態(tài)延續(xù)到現(xiàn)在（說(shuō)話時(shí)刻），其表示的時(shí)間的起點(diǎn)應(yīng)從動(dòng)作發(fā)生之時(shí)算起。例如

6、：I havent heard from him since he has lived there。 這里has lived表示動(dòng)作的持續(xù)性，時(shí)間的起點(diǎn)應(yīng)從：“開(kāi)始居住”時(shí)算起。因此此句可理解為“自從他（開(kāi)始）住在那兒起，我就一直沒(méi)收到他的來(lái)信”。    五Since在特殊句型中的應(yīng)用    句型I：“It is （has been）+時(shí)間+since+持續(xù)性動(dòng)詞的過(guò)去時(shí)”，表示“自從以來(lái)到現(xiàn)在已有多久?！崩纾?#160;   It has been quite some time since I was las

7、t in London.我上次離開(kāi)倫敦至今頗有一段時(shí)間了。句型II：“It was+時(shí)間+since+持續(xù)性動(dòng)詞的過(guò)去完成時(shí)”,表示“從到過(guò)去某時(shí)間點(diǎn)以來(lái)”，例如：It was three years since we had been here.那時(shí)我們?cè)谶@已呆了三年。六鞏固練習(xí)   （一）單項(xiàng)選擇1Do you smoke？_ It's two years since I smokedAYes，I do  BNo，I don't   CNot too much   DOh，but I wish I did

8、n't2Since you are busy, you _ tomorrow.   A. dont need come    B. need not come   C. neednt come   D. mustnt come    3. -Has he been home? -_, he _home since he graduated.  A. No; hasn't been    B. Yes;

9、 has been   C. No; isnt     D. Yes; is  4They _friends since they met in Shanghai.  A. havent been   B. have been  C. arent    D. are   5. I_ here since he left the door open, but it seems that he wont come bac

10、k today.  A. have been waiting   B. will have waited  C. was waiting   D. waited6. I _ from him since he has lived here.  A. heard    B. have heard   C. have never heard D. have been hearing 7. He came to China _ 1998.A. from  

11、60;  B. since    C. at   D. in8. - Excuse me. Did you notice whether the No.18 bus had gone by?-Not _     _  I began to stand here.A. as      B. when     C. since  D. while   （二）漢譯

12、英：1他好久沒(méi)學(xué)英語(yǔ)了。2. 自從我生病以來(lái)，他從未來(lái)看過(guò)我。3. 自從我病愈以來(lái)，他從未來(lái)看過(guò)我。4. 約翰現(xiàn)在和父母一起住在紐約，他不當(dāng)教師已經(jīng)三年了。5自從我們看望你母親以來(lái)到現(xiàn)在有多長(zhǎng)時(shí)間了？參考答案（一）：1B 。“It is （has been）+時(shí)間+since+持續(xù)性動(dòng)詞的過(guò)去時(shí)”，表示“已有多久沒(méi)了”。 It's two years since I smoked意思是“我兩年沒(méi)有抽煙了，故選擇B項(xiàng)。2、C。不必做某事：neednt do sth.，所以選擇C項(xiàng)。3、A?！皊ince引導(dǎo)的時(shí)間狀語(yǔ)從句的謂語(yǔ)是終止性動(dòng)詞的過(guò)去時(shí)，則從句的時(shí)間是“從動(dòng)作開(kāi)始的那一時(shí)刻算起”

13、。 “he hasn't been home since he graduated”表示“自從他畢業(yè)以來(lái)，他就離開(kāi)了家”，故選擇A項(xiàng)。4、B。用法同練習(xí)3?！癟hey .have been friends since they met in Shanghai”，自從他們?cè)谏虾Ｏ嘧R(shí)以來(lái)，一直是朋友。故選擇B項(xiàng)。5.A 。I have been waiting here since he left the door open, but it seems that he wont come back today意思是“自從他關(guān)上門(mén)以來(lái)，我一直在等他，但他是乎今天回不來(lái)了”。故選擇A項(xiàng)。

14、60;6.C。since引導(dǎo)的時(shí)間狀語(yǔ)從句的謂語(yǔ)為持續(xù)性動(dòng)詞的現(xiàn)在完成時(shí)，則表示動(dòng)作和狀態(tài)延續(xù)到現(xiàn)在（說(shuō)話時(shí)刻），其表示的時(shí)間的起點(diǎn)應(yīng)從動(dòng)作發(fā)生之時(shí)算起?！癐 have never heard from him since he has lived there ”意思是“自從他（開(kāi)始）住在那兒起，我從未收到他的來(lái)信”。故選擇C項(xiàng)。7.D。表示時(shí)間點(diǎn)用in，句子時(shí)態(tài)是過(guò)去時(shí)，故選擇D項(xiàng)。8.C。用法同練習(xí)3。 “Not since I began to stand here”意思是“自從我開(kāi)始站在這里就沒(méi)有注意到”。故選擇C項(xiàng)。（二）1. Its a long time since he studied English.2. He has never been to see me since I have been ill.3. He has never been to see me since I was ill.4. John is now with his parents in New York, it is already three years since he was a teacher .5. How long is it since we visited your