Unit6NurturingNatureUsinglanguage课件高二英语选择性

Unit6Nurturing

natureUnit6Presentperfectcontinuous外研版高中英语选择性必修一Tolearntheuseofpresentperfectcontinuoustense

学习使用现在完成进行时的用法

Tousethepresentperfectcontinuoustensetotalkabouthowtheenvironmentwhereyoulivehaschanged

使用现在完成进行时来谈论你居住环境的变化学习目标Lookatthesentencesfromthereadingpassageandanswerthequestions.aWildanimalssuchastheseTibetanantelopes

havenowbeenusingthesepassagestoryears.b…beforeIknowit,wehavereachedTanggulaStation.86页1Whichofthesestatementsistrueaboutsentence(a)?(1)Wildanimalsstartedusingthesepassagesinthepast.(2)Wildanimalsusedthesepassagesonlyonce.(3)Wildanimalsstillusethesepassagesnow.aWildanimalssuchastheseTibetanantelopes

havenowbeenusingthesepassagestoryears.86页2Whatisthedifferencebetweentheexpressionsinredinsentences(a)and(b)?aWildanimalssuchastheseTibetanantelopes

havenowbeenusingthesepassagestoryears.b…beforeIknowit,wehavereachedTanggulaStation.a:havebeenusingb:havereacheda:havebeendoing–presentperfectcontinuous

b:havedone–presentperfect86页Nowlookformoresentenceswiththepresentperfectcontinuoustenseinthereadingpassage,andsummariseitsuseinyourownwords.86页1ThetrainhasbeenracingalongsteadilysinceitleftXining.2Allthistimethesong“SkyRailway”hasbeenplayinginsidemyhead.3WildanimalssuchastheseTibetanantelopeshave

nowbeenusingthesepassagesforyears.4TheQinghai-TibetPlateauhasbeenattractingpeople’sadmirationforcenturies.5Now,thankstoourefforts,passengersfromalloverthecountryhavebeenenjoyingthesemagicallandscapes.Payattentiontotheexpressioninredandunderlined.关注红色字体和下划线单词1Thetrainhasbeenracingalongsteadilysince

itleftXining.2Allthistimethesong“SkyRailway”hasbeenplayinginsidemyhead.3WildanimalssuchastheseTibetanantelopeshave

nowbeenusingthesepassagesforyears.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。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!总结例句常搭配的时间状语

allthistime,thisweek,thismonth,allnight,allthemorning,recently等状语以及由since和for引导的短语或从句Mysister’sbeenwritinglettersallnight.Heisill.He’sbeenlyinginbedforthreeweeks.We’vebeenlivinginthiscitysincewegotmarried.1.未完结性。现在完成时表示动作已完成,而现在完成进行时则常常具有未完成含义。2.短暂性。现在完成时与现在完成进行时都可表示延续至今的状态,但是现在完成进行时常常表示短暂性。如：

TheyhavelivedinNewYork.

（长期性）

TheyhavebeenlivinginNewYork.（短暂性）现在完成进行时与现在完成时的区别3.连续性或重复性。现在完成进行时常常用于表示延续至今的连续性或重复性动作。如：

I’vebeenknocking.Idon’tthinkanybody’sin.Completethepassagewiththecorrectformoftheverbsinbrackets.以正确的动词形式完成文章的表格练习I1________________(hear)astrangesoundforawhile.It’sadeep,

loudroar,likealion’s.Buttherearen’tanylionshere...Orarethere?SoonIseewhat2_________________(make)thenoise:ahowlermonkey.NowIfeellessworried.Realisingthatsomething3_______________(move)onmyshoulder,Iturnmyheadtolookatit.Ohno!It'sagiantspider!Ibrushitoffanditrunsundersomeleaves.Itrytobatawaythehugeinsects,which4_______________(fly)aroundmyheadinablackcloudforquiteawhile.havebeenhearinghasbeenmakingismovinghavebeenflying87页IpullofftheheadsetandI’mbackinmylivingroom.Thankgoodness!I5_______________(give)thelatestvirtualrealityheadsetand,forthelasttwentyminutes,I6________________(use)ittoexploretheAmazon.Thisisanamazingexperienceandareminderofhowmanyspeciesthereareintherainforest.Wemustdoallwecantoprotectit.havebeengivenhavebeenusing87页Lookatthechartsandmakesentencesusingthepresentperfectcontinuoustense.看图表并造句子。87页1.Thenumberoftreeshasbeenincreasinginthelast20years.2.Desertareashavebeenreducinginthelast20years.3.Butterflypopulationhas