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學(xué)習(xí)啦 > 學(xué)習(xí)英語 > 英語單詞 > 英語單詞since的用法總結(jié)

英語單詞since的用法總結(jié)

時間: 燕妮639 分享

英語單詞since的用法總結(jié)

  下面是學(xué)習(xí)啦小編整理的一些關(guān)于since的用法總結(jié),以供大家學(xué)習(xí)參考。

  英語單詞since的用法總結(jié):

  1) since +從句

  Great changes have taken place since you left.

  Considerable time has elapsed since we have been here.

  2) since +一段時間+ ago

  I have been here since five months ago.

  3) since +過去一個時間點 (如具體的年、月、日期、鐘點、1980, last month, half past six)。

  I have been here since 1989.

  4) It is +一段時間+ since從句

  It is two years since I became a postgraduate student.

  since的用法主要有兩點:一是表示“自從……以來”,二是表示“既然”之意。但如果只了解詞的含義,而不了解其用法,在使用時就會造成錯誤。例如:I have not heard from him since I lived in Shanghai.

  不少人會望文生義,將該句譯為:“自從我住在上海以來,就再也沒有收到他的信了。”而實際上這個句子的譯文并非如此,那么正確的含義是什么呢?

  下面談?wù)剆ince作連詞引導(dǎo)時間狀語從句的用法。

  一、若since引導(dǎo)的狀語從句的謂語動詞是終止性的過去時,則從句表示的時間是“從動作開始的那一時刻起”。如:

  He has studied very hard since he came to our school.自從他來到我們學(xué)校,他學(xué)習(xí)就非常努力。

  We have been missing them since they left here自從他們離開這里,我們就一直很想念他們。

  這是最常見的一種用法,此處不再多述。

  二、若since引導(dǎo)的狀語從句的謂語動詞是持續(xù)性動詞或表示狀態(tài)的動詞的過去時時,則從句表示的時間是“從那持續(xù)動作或狀態(tài)結(jié)束時算起”。如:

  I haven’t heard any noise since I slept. Sleep 為持續(xù)性動詞,sleep的動作結(jié)束時,即“醒來”時,這句應(yīng)譯為“我醒后還未聽到任何聲音”。

  John is now with his parents in New York, it is already three years since he was a teacher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。

  本文開始出現(xiàn)的那個句子就可以譯為“自從我離開上海,就再也沒有收到他的信。”這種譯法常被人們誤用,我們不妨再多舉幾個例子看看:

  How long is it since you lived in Shanghai?你離開(沒住在)上海多久了?

  It is half a month since he was a League member.他退團(tuán)(不當(dāng)團(tuán)員)半個月了。

  It’s been quite some time since I was last in London我離開倫敦已很長時間了。

  比較:He has written to me frequently since I was ill.自從我病愈以來,他屢次給我寫信。(從句謂語為狀態(tài)動詞)

  He has written to me frequently since I fell ill.自從我生病以來,他就屢次給我寫信。(從句謂語為終止性動詞)

  三、若since引導(dǎo)的狀語從句的謂語為持續(xù)性動詞的現(xiàn)在完成時,則表示動作和狀態(tài)延續(xù)到現(xiàn)在(說話時刻),其表示的時間的起點應(yīng)從動作發(fā)生之時算起。如:

  I haven’t heard from him since he has lived there。

  這里has lived表示動作的持續(xù)性,時間的起點應(yīng)從:“開始居住”時算起。因此此句可理解為“自從他(開始)住在那兒起,我就一直沒收到他的來信”。

  Since we have owned a car, we have gone camping every year。自從我們自己有了汽車,我們每年都去野營。

  試比較:1. Since I’ve been at this school, we have had three headmasters.自從我到這所學(xué)校,我們已換了三個校長了。

  Since I was at this school, they have had three headmasters.自從我離開這所學(xué)校,他們已換了三個校長了。

  2.He has never been to see me since I have been ill. 自從我生病以來,他從未來看過我。

  He has never been to see me since I was ill. 自從我病愈以來,他從未來看過我。

  由此可見,since引導(dǎo)的從句持續(xù)動詞的一般過去時和現(xiàn)在完成時所表示的意思恰好相反。換言之,前者以肯定的語法形式反映著否定的邏輯內(nèi)容,而后者的形式與內(nèi)容是一致的。

  至于It is +一段時間+since…的句型與It has been +一段時間+since…意思相同。前者是規(guī)范說法,后者是口語說法。

  應(yīng)注意的是,在這種結(jié)構(gòu)中,since引導(dǎo)的從句絕對不能用否定式的謂語動詞來表示否定意義,下面兩句都錯了:

  It is a long time since he didn’t study English.

  It’s two months since you didn’t come to see me.

  正確的說法為:

  It’s a long time since he studied English 他好久沒學(xué)英語了。

  You haven’t come to see me for two months. 你有兩個月沒來看我了。

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