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since可與現(xiàn)在完成時(shí)之外的時(shí)態(tài)連用嗎
作者:enwed  文章來源:本站原創(chuàng)  點(diǎn)擊數(shù)  更新時(shí)間:2011-05-14  文章錄入:admin  責(zé)任編輯:admin



since可與現(xiàn)在完成時(shí)之外的時(shí)態(tài)連用嗎

 

1. 當(dāng)since表示“自從”時(shí),不管它是用作介詞、連詞還是副詞,它都通常要與現(xiàn)在完成時(shí)連用。如:

I’ve worn glasses since my childhood. 我從小就戴眼鏡。

The works have been closed since January. 一月份以來這些廠就關(guān)閉了。

He’s put on a lot of weight since he gave up smoking. 他戒煙后體重增加了許多。

Nothing has happened since. 從那以后未發(fā)生什么事。

She moved to London last May and has since got a job on a newspaper. 她去年五月到倫敦 此后一直在報(bào)社工作。

有時(shí)連用現(xiàn)在完成進(jìn)行時(shí)。如:

He has been working since noon. 他從中午就開始工作了。

2. 在以下情況下可以連用除完成時(shí)態(tài)外的其他時(shí)態(tài):

①當(dāng)主句表示“多長(zhǎng)時(shí)間”時(shí),動(dòng)詞可用一般現(xiàn)在時(shí)(當(dāng)然也可用現(xiàn)在完成時(shí))。如:

It’s a long time since I met you last. 好久不見了。

It’s just a week since we arrived here. 我們到這里才一個(gè)星期。

It’s a long time since I met you last. 從上次見到你,已有很長(zhǎng)時(shí)間了。

以上各句的it is也可換成 it has been,不過在口語或非正式文體中,用一般現(xiàn)在時(shí)的情形比較普遍。

②當(dāng)主句謂語動(dòng)詞為seem, appear等連系動(dòng)詞時(shí)。如:

It seems like years since we last met. 我們似乎幾年未見面了。

It seems like years since I last saw you. 從上次見到你以來好像已經(jīng)有許多年了。

③當(dāng)主句和從句表示情況“變化”時(shí)。如(www.52ysedu.com)

She doesn’t come round to see us so much since her marriage. 自從結(jié)了婚,她不怎么過來看我們了。(原來經(jīng)常來,結(jié)婚后就不怎么來了)

Since he went on that course he thinks he knows everything. 自從他選了那門課程,他就認(rèn)為自己什么都懂了。(原來不認(rèn)為自己什么都懂,但選了那門課程后就認(rèn)為自己什么都懂了)

 

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