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公共英語三級(jí)考試語法要點(diǎn)解析
1、 一般現(xiàn)在時(shí)
(1) 表示經(jīng)常發(fā)生的動(dòng)作或現(xiàn)在存在的狀態(tài)，常與sometimes, always, often, every day等時(shí)間狀語連用。如：Sometimes, we go swimming after school.
(2) 表示客觀真理、科學(xué)事實(shí)等。如：The earth goes round the sun.
2、 現(xiàn)在進(jìn)行時(shí)
(1) 表示說話時(shí)或現(xiàn)階段正在進(jìn)行的動(dòng)作，常與now, at present等時(shí)間狀語連用。如：
What are you doing now?
(2) 和always, continually等連用，表一種經(jīng)常反復(fù)的動(dòng)作，常含有某種情感。如：
He is always doing good deeds.
3、 現(xiàn)在完成時(shí)
主要表示動(dòng)作發(fā)生在過去，對(duì)現(xiàn)在仍有影響，或動(dòng)作一直延續(xù)到現(xiàn)在，或可能還要繼續(xù)下去，常與just, already, so far, once, never 等詞連用。如:Have you ever been to Beijing?
4、一般將來時(shí)
表示將來某一時(shí)間要發(fā)生的動(dòng)作或存在的狀態(tài)，常與tomorrow, next year等連用。如：
Ill meet you at the school gate tomorrow morning.
Were going to see a film next Monday.
5、一般過去時(shí)
表示在過去某一時(shí)間或某一階段內(nèi)發(fā)生的動(dòng)作或存在的狀態(tài)，常與yesterday, last year, in 1998, a moment ago等詞連用。如：It happened many years ago.
6、過去進(jìn)行時(shí)
表示過去某一時(shí)刻或某一時(shí)期正在發(fā)生的動(dòng)作。如：
What were you doing this time yesterday?
7、 過去完成時(shí)
表示在過去某一時(shí)間或動(dòng)作之前已經(jīng)發(fā)生或完成了的動(dòng)作。如：
The train had already left before we arrived.
8、一般過去將來時(shí)
表示說話人從過去的角度來看將來發(fā)生的動(dòng)作。如：
He said he would come, but he didnt.
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