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现在完成时和现在完成进行时结构:现在完成时:have(has)doneIhavereadthebook.现在完成进行时:have(has)beendoingIhavebeenreadingthebook.过去完成时结构:haddoneShehadflownforonly75hoursbeforesheflewsolo(单独)fromLondontoAustraliain1930.问句:Hadsheflownforonly…?Howmanyhourshadsheflownbeforeshe…?否定句:Shehadn’tflownfor…将来完成时将来完成时表示在将来某个时间以前发生的事情。将来完成时是由“will/won’t+have+过去分词”构成。请大家看例句:1.By2003,thenumberofnativeEnglish-speakingwebuserswillhavedroppedto29%.到2003年,以英语为母语的网络使用者的人数将下降到29%2.Inabout20years’time,Spanish,French,ArabicandChinesewillalsohavetakenonthisconnectingrole.大约20年后,西班牙语,法语,阿拉伯语和汉语也将起到这种联系沟通作用。在将来完成时的句子中,大家经常看见by这个介词,这时by的意思是“到…….时候为止”。大家记住,表示在将来某个时间以前发生的事情,就用将来完成时。被动语态的构成:一般现在时:bedoneGeneticallyengineeredfoodsareproduced.现在完成时:havebeendoneBreadhasbeenmade.过去完成时:hadbeendoneThebookhadbeentranslatedintoEnglish进行时态:bebeingdoneThehospitalisbeingbuiltnow.AcakewasbeingmadewhenIcameintothekitchen.情态动词:can(should,hadto…)bedoneThenewprocessesshouldbecontrolled.Theprojecthadtobeabandoned.现在进行时的被动形式句式结构例句肯定句动作承受者+isl/am/are+being+doneTheroadisbeingbuiltbyus否定句动作承受者+is/am/are+not+being+doneTheroadisn’tbeingbuiltbyus.一般疑问句Is/Am/Are+动作承受者+being+doneIstheroadbeingbuiltbyyou?现在完成时的被动形式句式结构例句肯定句动作承受者+has/have+been+doneWehavebeeninvitedtoadancebythestudentsHehasbeentoldthenews否定句动作承受者+has/have+notbeen+doneWehaven’tbeeninvitedtoadancebythestudentsHehasn’tbeentoldthenews.一般疑问句Has/Have+动作承受者+been+doneHashebeentoldthenews?Haveyoubeeninvitedtoadancebythestudents?特殊疑问句特殊疑问词+一般疑问句Wehavebeeninvitedtoadanceforalongtime.AWhohasbeeninvitedtoadanceforalongtime?Howlonghaveyoubeeninvitedtoadance?情态动词的被动形式句式结构例句肯定句动作承受者+情态动词+be+doneThebridgecanbebuiltnextmonthThebridgemaybebuiltnextmonthThebridgemustbebuiltnextmonth否定句动作承受者+情态动词+notbe+doneThebridgecan’tbebuiltnextmonthThebridgemaynotbebuiltnextmonthThebridgemustn’tbebuiltnextmont一般疑问句情态动词+动作承受者+be+doneCanthebridgebebuiltnextmonth?Maythebridgebebuiltnextmonth?Mustthebridgebebuiltnextmont?特殊疑问句特殊疑问词+一般疑问句ThecarcanbeboughtinNanjingABA:WhatcanbeboughtinNanjingB:Wherecanthecarbebought?动词不定式的被动态tobe+doneeg:Whatistobedonenext?Anewhotelisgoingtobebuiltnextweek.Yourbikeneedstoberepaired.被动态的补充用法It+被动态+that....(say,think,believe,expect,know,report,suggest,prove)eg:Itissaidthathecanspeaktheirlanguage.Itisreportedthatheisstillalive.It’sthoughtthatthenewofficerwillcometoourtown.It’sbelievedthatwecandefeatthemtonight.
本文标题:现在完成时和现在完成进行时
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