
The students have cleaned the classrm.The classrm has been cleaned. Yu needn’t clean it nw.
表示說話時已經(jīng)完成的被動性的動作或結(jié)果,主語是動作的承受者。
have/has been dne
have/has been
Hw d we frm the present perfect passive vice?
一、用法:1、現(xiàn)在完成時的被動語態(tài)強(qiáng)調(diào)一個發(fā)生在過去的被動性的動作,動作已完成并強(qiáng)調(diào)對現(xiàn)在造成的影響或結(jié)果。表示動作從過去延續(xù)到現(xiàn)在并有可能繼續(xù)延續(xù)下去2、動詞和被修飾主語構(gòu)成被動關(guān)系。
肯定形式:His hmewrk has been finished.否定形式:His hmewrk has nt been finished.一般疑問句:Has his hmewrk been finished yet?特殊疑問句:Hw lng has his hmewrk been finished?
主語+have/has been dne...
主語+have/has nt been dne...
have/has+主語+been
疑問詞+have/has+主語+been
三、解題步驟 1.根據(jù)句意確定時態(tài) 2.確定主被動 3.定謂have/has
現(xiàn)在完成時與現(xiàn)在完成時被動語態(tài)的動詞形式
找出下面句子的謂語結(jié)構(gòu),哪些是主動?哪些是被動?Jan’s life has been greatly imprved by the Internet.The Internet has greatly imprved Jan’s life.Peple have written much abut the wnders f the Wrld Wide Web.Much has been written abut the wnders f the Wrld Wide Web.
現(xiàn)在完成時謂語結(jié)構(gòu)
have/has dne
感知句子,完成方框下的小題
一名敵人被擊殺。An enemy has been slained.我方隊(duì)友被擊殺。An ally has been slained.你被擊殺了。Yu have been slained.
1.以上句子中所使用的時態(tài)和語態(tài)是 。2.現(xiàn)在完成時的被動語態(tài)的構(gòu)成為: 。
have/has been+過去分詞
【考點(diǎn)精講】 現(xiàn)在完成時1. 常與以下時間狀語連用:recently, yet, already, just, befre, lately,since+時間狀語(從句)”,“fr+時間段”, (ever) since, these days, befre, s far, in the last/past few years, up t nw, till nw,by+現(xiàn)在時間…等。*I have just/alreay turned ff the light. *They have been gd friends since they met at a meeting. * She has wrked in the schl fr ten years.
常與現(xiàn)在完成時連用的時間狀語有:already 已經(jīng) yet 已經(jīng)recently/lately 最近 since then 從那時起ever since 自那以來 ever 曾經(jīng)s far 迄今為止 by nw 到現(xiàn)在為止fr a lng time 很長一段時間in recent years 在最近幾年里in/during/ver the past/last years 在過去的幾年里
recently, yet, already, just, befre, lately,since+時間狀語(從句)”,“fr+時間段”, (ever) since, these days, befre, s far, in the last/past few years, up t nw, till nw,by+現(xiàn)在時間…等。
2. 在條件、時間、讓步狀語從句中, 表示將來某時已完成的動作。*I shall pst the letter as sn as I have written it. 3. 下列句型中常用現(xiàn)在完成時: ①It is(has been)+一段時間+since從句(從句用一般過去時)②This /It is the first(secnd. . . )time+that從句(從句用現(xiàn)在完成時)
1. 現(xiàn)在完成時的被動語態(tài)、現(xiàn)在進(jìn)行時的被動語態(tài)及一般過去時的被動語態(tài)的區(qū)別The machine has been repaired.(說明動作發(fā)生在過去,對現(xiàn)在有影響,“現(xiàn)在修好了”)The machine is being repaired nw.(說明動作正在進(jìn)行)The machine was repaired yesterday.(只說明動作發(fā)生在過去)2. 非延續(xù)性動詞,如brrw, finish, begin, start, buy, marry, pen, jin等構(gòu)成的現(xiàn)在完成時的被動語態(tài)不能與表示一段時間的狀語連用。若要表達(dá)相應(yīng)的意思,則要改換動詞或時態(tài)。例:工程已開始三個月了。 The prject has been started fr three mnths.(F) The prject has been n fr three mnths.(T)
Can yu make mre sentences, using “have/has been dne” ?
Practice I
Tall buildings_______________(build) everywhere.
have been built
Shpping centers ___ (rebuild).
have been rebuilt
Sme factries __ (set up) t imprve ecnmies.
have been set up
ecnmy [?'k?n?m?] n. 經(jīng)濟(jì);節(jié)約;理財(cái)
The rad ___________________(widen).
has been widened
Mre dustbins ___ ( place) n the streets.
dust 灰塵bin 箱子,容器;['d?stb?n]
have been placed
Mre and mre trees and flwers ___( plant) n the either side f the rads.
have been planted
總 結(jié)1. 現(xiàn)在完成時的被動語態(tài)強(qiáng)調(diào)一個發(fā)生在過去的被動性的動作,動作已完成并強(qiáng)調(diào)對現(xiàn)在造成的影響或結(jié)果,主語和謂語之間為被動關(guān)系。例:The dr has already been lcked.門早已經(jīng)被鎖上了。I have been emplyed at the jb since 2015.自從2015年,我就做這份工作。
總 結(jié)2.基本構(gòu)成:has/have been dne。 其他句式:
1. 用現(xiàn)在完成時的被動語態(tài)改寫、翻譯句子①Jack’s bss has always praised him fr his devtin t wrk. Jack ___________________________ by his bss fr his devtin t wrk.②They have fund a gd place t build a temple in the village. A gd place t build a temple in the village ___________________ .③We haven’t yet decided hw t slve that difficult technlgical prblem. Hw t slve that difficult technlgical prblem ___________________ yet.④當(dāng)我的家庭作業(yè)完成時我就回家。 I will g hme when my hmewrk _________________.⑤紙幣已被使用了1000多年了。 Paper mney _________________ fr ver ne thusand years.
has always been praised
hasn’t been decided
has been fund
has been finished
has been used
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