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在大學(xué)英語六級考試中,幾乎沒有單獨(dú)考察語法的題目,但并不代表語法知識不重要,語法知識貫穿整個(gè)六級試卷。下面考試吧英語四六級考試網(wǎng)為大家整理了英語六級語法知識,希望可以為大家?guī)韼椭,一起來學(xué)習(xí)吧。
英語六級語法知識:比較過去時(shí)與現(xiàn)在完成時(shí)
1)過去時(shí)表示過去某時(shí)發(fā)生的動(dòng)作或單純敘述過去的事情,強(qiáng)調(diào)動(dòng)作;現(xiàn)在完成時(shí)為過去發(fā)生的,強(qiáng)調(diào)過去的事情對現(xiàn)在的影響,強(qiáng)調(diào)的是影響。
2)過去時(shí)常與具體的時(shí)間狀語連用,而現(xiàn)在完成時(shí)通常與模糊的時(shí)間狀語連用,或無時(shí)間狀語。
一般過去時(shí)的時(shí)間狀語:
yesterday, last week,…ago, in1980, in October, just now, 具體的時(shí)間狀語
共同的時(shí)間狀語:
this morning, tonight,this April, now, once,before, already, recently,lately
現(xiàn)在完成時(shí)的時(shí)間狀語
for, since, so far, ever, never, just, yet, till / until, up to now, in past years, always,
不確定的時(shí)間狀語
3)現(xiàn)在完成時(shí)可表示持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài),動(dòng)詞一般是延續(xù)性的,如live, teach, learn, work, study, know.
過去時(shí)常用的非持續(xù)性動(dòng)詞有come, go, leave, start, die, finish, become, get married等。
舉例:
I saw this film yesterday.
(強(qiáng)調(diào)看的動(dòng)作發(fā)生過了。)
I have seen this film.
(強(qiáng)調(diào)對現(xiàn)在的影響,電影的內(nèi)容已經(jīng)知道了。)
Why did you get up so early?
(強(qiáng)調(diào)起床的動(dòng)作已發(fā)生過了。)
Who hasn't handed in his paper?
(強(qiáng)調(diào)有卷子,可能為不公平競爭。)
She has returned from Paris.
她已從巴黎回來了。
She returned yesterday.
她是昨天回來了。
He has been in the League for three years.
(在團(tuán)內(nèi)的狀態(tài)可延續(xù))
He has been a League member for three years.
(是團(tuán)員的狀態(tài)可持續(xù))
He joined the League three years ago.
( 三年前入團(tuán),joined為短暫行為。)
I have finished my homework now.
---Will somebody go and get Dr. White?
---He's already been sent for.
句子中如有過去時(shí)的時(shí)間副詞(如 yesterday, last, week, in 1960)時(shí),不能使用現(xiàn)在完成時(shí),要用過去時(shí)。
(錯(cuò))Tom has written a letter to his parents last night.
(對)Tom wrote a letter to his parents last night.
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