今天為大家推送的是四六級，一起來看看吧！英語四六級語法（46）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)生的動作或單純敘述過去的事情，強(qiáng)調(diào)動作;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)在的動作或狀態(tài)，動詞一般是延續(xù)性的，如live, teach, learn, work, study, know. 過去時(shí)常用的非持續(xù)性動詞有come, go, leave, start, die, finish, become, get married等。 舉例： I saw this film yesterday. 全部倒裝 全部倒裝是只將句子中的謂語動詞全部置于主語之前。此結(jié)構(gòu)通常只用與一般現(xiàn)在時(shí)和一般過去時(shí)。常見的結(jié)構(gòu)有： 1) here, there, now, then, thus等副詞置于句首, 謂語動詞常用be, come, go, lie, run。 There goes the bell. Then came the chairman. Here is your letter. 2) 表示運(yùn)動方向的副詞或地點(diǎn)狀語置于句首，謂語表示運(yùn)動的動詞。 Out rushed a missile from under the bomber. Ahead sat an old woman. 注意：上述全部倒裝的句型結(jié)構(gòu)的主語必須是名詞，如果主語是人稱代詞則不能完全倒裝。 Here he comes.Away they went. (強(qiáng)調(diào)看的動作發(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.
