Unit6+Nurturing+Nature+Using+language+现在完成进行时【 知识建构+精讲专练 】高中英语外研版（2019）选择性必修第一册

U6Usinglanguage

Presentperfectcontinuousa.WildanimalssuchastheseTibetanantelopeshavenowbeenusingthesepassagesforyears.1.Whichofthesestatementsistrueaboutsentence(a)?(1)Wildanimalsstartedusingthesepassagesinthepast.(2)Wildanimalsusedthesepassagesonlyonce.(3)Wildanimalsstillusethesepassagesnow.a.WildanimalssuchastheseTibetanantelopeshavenowbeenusingthesepassagesforyears.b.…beforeIknowit,wehavereachedTanggulaStation.Whatisthedifferencebetweentheexpressionsinboldinsentences(a)and(b)?have/hasbeendoinghave/hasdone

现在完成进行时现在完成时动作从过去开始正在进行动作发生在过去观察归纳1.ThetrainhasbeenracingalongsteadilysinceitleftXining.2.Allthistime,thesong“SkyRailway”hasbeenplayinginsidemyhead.3.Thejourneyhasbeenflyingby,...4.TheQinghai-TibetPlateauhasbeenattractingpeople’sadmirationforcenturies.5.…passengersfromalloverthecountryhavebeenenjoyingthesemagicallandscapes..moresentenceswiththepresentperfectcontinuoustenseinthetext现在完成进行时含义：现在完成进行时表示动作从_________(过去/现在)一直持续到________(过去/现在)形式：______________连用的时间状语：allthetime,thisweek,allnight,thesefewdays,for...,since...过去现在have/hasbeendoinga.Ihavebeendesigningsolarracingcars.

我一直在设计太阳能赛车。b.Ihavedesignedfiveorsixdifferentcars.

我已经设计五六辆小汽车了。现在完成进行时和现在完成时的区别含义：现在完成进行时强调动作的___________(延续性/结果)，现在完成时强调动作的___________(延续性/结果)形式：现在完成进行时______________现在完成时_______________延续性结果have/hasbeendoinghave/hasdone2）现在完成进行时往往表示动作在重复，而现在完成时一般不表示动作的重复。例如：a.Ihavebeentakingpartinracesforfouryears.我这四年一直在参加比赛。b.Howmanyraceshaveyoutakenpartin?你参加多少场比赛了？现在完成进行时和现在完成时的区别3）现在完成进行时与所有进行时态一样带有感情色彩，可使表达显得生动，而现在完成时往往只表明一个事实、一种影响或结果，不带感情色彩。例如：Whathaveyoubeendoing?Youlookedfedup.你一直在干什么呀？你看上去很不高兴。现在完成进行时和现在完成时的区别Payattentiontotheexpressioninredandunderlined.1Thetrainhasbeenracingalongsteadilysince

itleftXining.2Allthistimethesong“SkyRailway”hasbeenplayinginsidemyhead.3WildanimalssuchastheseTibetanantelopeshave

nowbeenusingthesepassagesforyears.观察归纳4TheQinghai-TibetPlateauhasbeenattractingpeople’sadmirationforcenturies.5Now,thankstoourefforts,passengersfromalloverthecountryhavebeenenjoyingthesemagicallandscapes.现在完成时常与allthistime,now等时间状语以及由since或for引导的时间状语连用。总结例句常搭配的时间状语

现在完成进行时常与表示一段时间的状语连用，例如：allthetime,thisweek,allnight,thesefewdays以及由since和for引导的短语或从句Mysister’sbeenwritinglettersallnight.Heisill.He’sbeenlyinginbedforthreeweeks.We’vebeenlivinginthiscitysincewegotmarried.现在完成时的标志时间：already,yet,sofar,never,ever,recently,uptillnow持续不断进行,inthepast/last...years.现在完成进行时总结例句构成have/has+been+动词-ing形式TomhasbeenwatchingTVprogrammessinceseveno'clockthisevening.Ihavebeenworkinghereforfiveyears.总结例句用法

表示一个由过去某一时间开始一直持续到现在的动作(可能刚结束，也可能还要进行下去)。I'vebeendoingmyhouseworkallmorningandI'vejustfinishedit.Howlonghaveyoubeenwearingglasses?有时表示动作的重复。Davidhasbeencoughingalotlately.Heoughttogiveupsmoking.有时带有感情色彩。Toomuchhasbeenhappeningtoday!1.

Thefirstuseofatomicweapons(原子武器)wasin1945,

andtheirpower____________________(increase)eversince.2.

Yearsagowedidn’tknowthis,

butrecentscience___________(show)thatpeoplewhodon’tsleepwellgetilleasily.3.

—Look!Somebody___________(clean)thesofa.—Well,

itwasn’tme.

Ididn’tdoit.4.

—Howlong___________you______________(work)inthefactory?—Since1990.Let’spracticehas

been

increasinghas

shownhas

cleanedhave

been

working5．Inordertofindthemissingchild,villagers_______________(do)alltheycanoverthepastfivehours.6．Themanager_______________(tell)theworkershowtoimprovetheprogramsince9am.7．Thetwofriends__________________(chat)ontheInternetforthreehours,andtheywillgoontillnextmorning.Let’spracticehave

been

doinghas

been

tellinghave

been

chattingI1_______________(hear)astrangesoundforawhile.It`sadeep,loudroar,likealion`s.Buttherearen`tanylionshere…Orarethere?SoonIseewhat2______________(make)thenoise:ahowlermonkey.NowIfeellessworried.Realizingthatsomething3____________(move)onmyshoulder,Iturnmyheadtolookatit.Ohno!It`sagiantspider!Ibrushitoffanditrunsundersomeleaves.Completethepassagewiththecorrectformoftheverbsinbrackets.havebeenhearinghasbeenmakingismovingItrytobatawaythehugeinsects,which4_______________(fly)aroundmyheadinablackcloudforquiteawhile.IpullofftheheadsetandI`mbackinmylivingroom.Thankgoodness!I5______________(give)thelatestvirtualrealityheadsetand,forthelasttwentyminutes,I6_____________(use)ittoexploretheAmazon.Completethepassagewiththecorrectformoftheverbsinbrackets.havebeenflyinghavebeengivenhavebeenusingThisisanamazingexperienceandaremindertohowmanyspeciesthereareintherainforest.Wemustdoallwecantoprotectit.Completethepassagewiththecorrectformoftheverbsinbrackets.

Lookatthechartsandmakesentencesusingthepresentperfectcontinuoustense.Thenumberoftreeshasbeenincreasing/risinginthelast20years.increase增加rise

Lookatthechartsandmakesentencesusingthep