高考英語tenses(編輯修改稿)
2024-12-15 22:42 本頁面
【文章內(nèi)容簡介】 novel I have ever read. ?在時(shí)間或條件狀語從句中，現(xiàn)在完成時(shí)可以代替一般將來時(shí)。如： I shall post the letter as soon as I have written it. If you have done the experiment, you will realize the theory better. Don’t get off the bus until it has stopped. (六 ) 過去進(jìn)行時(shí) (was / were doing) 過去進(jìn)行時(shí)表示一個(gè)過去的動(dòng)作發(fā)生時(shí)或發(fā)生后，另一個(gè)過去的動(dòng)作正在進(jìn)行，或表示過去反復(fù)的習(xí)慣，常與 always， continually，constantly等動(dòng)詞連用。 1） We were discussing the matter when the headmaster entered. 2） Whenever I visited him, he was always writing at the desk. (七 ) 過去完成時(shí) ( had done) （ 1）表示過去某時(shí)間前已經(jīng)發(fā)生的動(dòng)作或情況，這個(gè)過去的時(shí)間可以用 by， before等介詞短語或一個(gè)時(shí)間狀語從句來表示；或者表示一個(gè)動(dòng)作在另一個(gè)過去動(dòng)作之前已經(jīng)完成。例如： 1） We had just had our breakfast when Tom came in. 2） By the end of last year they had turned out 5, 000 bicycles. （ 2）動(dòng)詞 expect, hope, mean, intend, plan, suppose, wish, want, desire等用過去完成時(shí)，表示過去的希望、預(yù)期、意圖或愿望等沒有實(shí)現(xiàn)。例如： I had meant to take a good holiday this year, but I wasn‘t able to get away. 另外兩種表示 過去想做而未做的事 的表達(dá)方式是： 1） was / were + to have done sth, 例如： We were to have e yesterday, but we couldn39。t. 2） intended (expected, hope, meant, planned, supposed, wished, wanted, desired) + to have done sth, 如： I meant to have told you about it, but I fot to do so. * 過去完成時(shí)常用于以下固定句型： 1） hardly, scarcely, barely + 過去完成時(shí) + when + 過去時(shí)。例如： Hardly had I got on the bus when it started to move. 2） no sooner +過去完成時(shí) + than +過去時(shí)。例如： No sooner had I gone out than he came to see me. 3） by (the end of ) +過去時(shí)間，主句中謂語動(dòng)詞用過去完成時(shí)。例如： The experiment had been finished by 4 o39。clock yesterday afternoon . (八 )一般過去將來時(shí) 1. 一般過去將來時(shí)的形式 Should / would+ 動(dòng)詞原形 was / were + 動(dòng)詞 ing形式 2. 一般過去將來時(shí)
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