>>>>2015年6月英語(yǔ)四級(jí)語(yǔ)法知識(shí)大全 

　　大學(xué)英語(yǔ)四級(jí)考試涉及的語(yǔ)法知識(shí)點(diǎn)多、涉及面寬，對(duì)不少考生來(lái)說(shuō)都是一個(gè)難題。希望通過(guò)本專(zhuān)題的學(xué)習(xí)，考生能對(duì)四級(jí)語(yǔ)法有更全面的掌握。

　　Ⅰ動(dòng)詞(時(shí)態(tài),語(yǔ)態(tài),用法,省略,一致性等)

　　時(shí)態(tài)

　　1)現(xiàn)在完成進(jìn)行時(shí)態(tài) (have/has been + -ing 分詞構(gòu)成): 動(dòng)作或狀態(tài)從過(guò)去某時(shí)開(kāi)始,繼續(xù)到現(xiàn)在,可能繼續(xù)下去,也可能剛剛結(jié)束.

　　I’ve been writing letters for an hour.

　　I’ve been sitting in the garden.

　　2)過(guò)去完成進(jìn)行時(shí)(由had been + ing分詞構(gòu)成): 過(guò)去某個(gè)時(shí)刻以前一直在進(jìn)行的動(dòng)作

　　I’d been working for some time when he called.

　　We had been waiting for her for two hours by the time she came.

　　3)將來(lái)完成進(jìn)行時(shí): 將來(lái)某個(gè)時(shí)刻以前一直在進(jìn)行的動(dòng)作.

　　By next summer, he will have been working here for twenty years.

　　In another month’s time she’ll have been studying here for three years.

　　4)將來(lái)完成時(shí)(由shall/will have + 過(guò)去分詞構(gòu)成): 將來(lái)某時(shí)已發(fā)生的事.

　　I shall have finished this one before lunch.

　　They’ll have hit the year’s target by the end of October.

　　語(yǔ)態(tài)

　　可以有兩種被動(dòng)結(jié)構(gòu)的類(lèi)型,例如:

　　He was said to be jealous of her success.

　　It was said that he was jealous of her success.

　　能同時(shí)適用于上述兩個(gè)句型的主動(dòng)詞通常都是表示“估計(jì)”,“相信”等意義的動(dòng)詞,常見(jiàn)的有assume,believe,expect,fear,feel,know,presume,report,say,suppose,understand等.

　　It is supposed that the ship has been sunk.

　　The ship is supposed to have been sunk.

　　擔(dān)當(dāng)be supposed to 與不定式的一般形式搭配時(shí)往往表示不同的意義.例如:

　　Why are you driving so fast in this area? You are supposed to know the speed to know the speed limit. (你應(yīng)該曉得速度限制)

　　雙賓語(yǔ)及賓補(bǔ)結(jié)構(gòu)的被動(dòng)語(yǔ)態(tài)

　　雙賓語(yǔ)結(jié)構(gòu)的被動(dòng)語(yǔ)態(tài): 雙賓語(yǔ)結(jié)構(gòu)變?yōu)楸粍?dòng)語(yǔ)態(tài)時(shí),可以把主動(dòng)結(jié)構(gòu)中的一個(gè)賓語(yǔ)變?yōu)橹髡Z(yǔ),另一個(gè)賓語(yǔ)仍然保留在謂語(yǔ)后面,但多數(shù)是把間接賓語(yǔ)變?yōu)橹髡Z(yǔ).

　　He was asked a number of questions at the press conference.

　　Two days were allowed them for making the necessary preparations.

　　賓補(bǔ)結(jié)構(gòu)的被動(dòng)語(yǔ)態(tài):

　　She was called Big Sister by everybody.

　　Then he was made a squad leader.

　　He was considered quite qualified for the job.

　　The room was always kept clean and tidy.

　　短語(yǔ)動(dòng)詞

　　Vi + adv

　　The plane took off two hours late.

　　Vi + prep

　　They looked round the Cathedral.

　　Vi + prep (有被動(dòng)語(yǔ)態(tài))

　　She’s looking after her sister’s children.

　　The children were always well looked after.

　　Vi + adv + prep

　　I began to look forward to their visits.

　　Vt + O + adv

　　Some women choose to stay at home and bring up their children.

　　The children were brought up by their mother.

　　They took him on.

　　Vt + adv + O (無(wú)被動(dòng)語(yǔ)態(tài))

　　I am trying to give up smoking.

　　Vt + O + prep

　　We talked Donald into agreement.

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