課件英語選擇性必修一Unit6Usinglanguage

Unit6NurturingnatureUsinglanguagePresentperfectcontinuousBYMICHELLEActivity1Lookatthesentencesfromthereadingpassageandanswerthequestions.1.Whichofthesestatementsaretrueaboutsentence(a)?(1)Wildanimalsstartedusingthesepassagesinthepast.(2)Wildanimalsusedthesepassagesonlyonce.(3)Wildanimalsstillusethesepassagesnow.2.Whatisthedifferencebetweentheexpressionsinboldinsentences(a)and(b)?Theyaredifferentinformandmeaning.Forsentence(a)theformis“havebeendoing”,whileforsentence(b)theformis“havedone”.Inmeaning,theboldpartinsentence(a)meanstheactioniscontinuousfromthepast;whiletheboldpartinsentence(b)meanstheactionhappenedonceinthepast.1.ThetrainhasbeenracingalongsteadilysinceitleftXining.2.Allthistime,thesong“SkyRailway”hasbeenplayinginsidemyhead.3.Thejourneyhasbeenflyingby,...4.TheQinghai-TibetPlateauhasbeenattractingpeople’sadmirationforcenturies.5....passengersfromalloverthecountryhavebeenenjoyingthesemagicallandscapes.Nowlookformoresentenceswiththepresentperfectcontinuoustenseinthereadingpassage,andsummariseitsuseinyourownwords.Grammar:Presentperfectcontinuous現(xiàn)在完成進(jìn)行時表示動作從過去某一時間開始一直持續(xù)到現(xiàn)在，這個動作可能終止，也可能還在進(jìn)行。1.現(xiàn)在完成進(jìn)行時的概念2.現(xiàn)在完成時的形式have/hasbeendoingGrammar:Presentperfectcontinuous3.現(xiàn)在完成時和現(xiàn)在完成進(jìn)行時的區(qū)別1）在不用時間狀語的情況下，現(xiàn)在完成進(jìn)行時的動作不一定已經(jīng)完成，很可能持續(xù)下去，而現(xiàn)在完成時一般表示動作已經(jīng)完成。即現(xiàn)在完成進(jìn)行時強(qiáng)調(diào)動作的延續(xù)性，而現(xiàn)在完成時強(qiáng)調(diào)動作的結(jié)果。a.Ihavebeendesigningsolarracingcars.

我一直在設(shè)計太陽能賽車。b.Ihavedesignedfiveorsixdifferentcars.

我已經(jīng)設(shè)計五六輛小汽車了。Grammar:Presentperfectcontinuous3.現(xiàn)在完成時和現(xiàn)在完成進(jìn)行時的區(qū)別2）現(xiàn)在完成進(jìn)行時往往表示動作在重復(fù)，而現(xiàn)在完成時一般不表示動作的重復(fù)。a.Ihavebeentakingpartinracesforfouryears.我這四年一直在參加比賽。b.Howmanyraceshaveyoutakenpartin?你參加多少場比賽了？Grammar:Presentperfectcontinuous3.現(xiàn)在完成時和現(xiàn)在完成進(jìn)行時的區(qū)別3）現(xiàn)在完成進(jìn)行時與所有進(jìn)行時態(tài)一樣帶有感情色彩，可使表達(dá)顯得生動，而現(xiàn)在完成時往往只表明一個事實(shí)、一種影響或結(jié)果，不帶感情色彩。Whathaveyoubeendoing?Youlookedfedup.你一直在干什么呀？你看上去很不高興。Grammar:Presentperfectcontinuous4.常與現(xiàn)在完成進(jìn)行時連用的時間狀語現(xiàn)在完成進(jìn)行時常與表示一段時間的狀語連用，例如：allthetime,thisweek,allnight,thesefewdays,for…,since…等。a.Aprivatedetectivehasbeentailinghimforseveralweeks.一個私人偵探幾個星期以來一直在跟蹤他。b.Craiglovesoutdooractivities—heskisinwinterandhasbeenfishingandhuntingsincehewasachild.Craig熱愛戶外活動。冬天他去滑雪，他從小就開始釣魚和打獵。Activity2Completethepassagewiththecorrectformoftheverbsinbrackets.havebeenhearinghasbeenmakingismovinghavebeenflyinghavebeengivenhavebeenusingActivity3Lookatthechartsandmakesentencesusingthepresentperfectcontinuoustense.1.Thenumberoftreeshasbeenincreasinginthelast20years.2.Desertareashavebeenreducinginthelast20years.3.Butterflypopulationhasbeenincreasing/hasbecominglargerandlargerinthelast20years.Activity4Workinpairs.Talkabouthowtheenvironmentwhereyoulivehaschanged.Usethepresentperfectcontinuoustensewhereappropriate.TourismandtheenvironmentDidYouKnow?Ecotourismisatypeoftourismthatconservestheenvironment.Itencouragespeopletoberesponsibletravellersandinvolveseducatingthemaboutthenaturalworld.ForcountriessuchasCostaRica,KenyaandNepal,ecotourismisanimportantpartoftheeconomy.Someecotourismholidaysinvolvevoluntarywork,suchasplantingtreesorcountingendangeredanimals.Activity5??Listentotheconversationandchoosetheplacesmentioned.a.Australiad.SouthAfricab.Nepalc.ThailandActivity6??Listenagainandcompletethenotes.hikeinthemountainscounthardworkelephantslieonthebeachanicehotelaone-daybiketourActivity7Completetheboxeswiththeexpressionsfromtheconversation.PersuadingothersCompromising?Thefactisthat…?Wouldn’tyouagreethat…??Iagree,but…?Asacompromise,…?Let’sfindacompromise.?Let’smeetinthemiddle.Activity8Completethepassagewiththeexpressionsinthebox.1.createopportunitiesfornewbusinesses2.helpthelocaleconomy3.noteco-friendly4.disturbthewildlife5.providemorejobs6.useupnaturalresources7.highercarbonemissionsActivity9CompletetheboxeswiththeexpressionsinActivity8.AdvantagesDisadvantages1.attractmoretourists2.createopportunitiesfornewbusinesses3.helpthelocaleconomy4.providemorejobs5.raiseawarenessoflocalwildlife6.providelocalswithachancetoexperienceothercultures1.noteco-friendly2.disturbthewildlife3.useupnaturalresources4.highercarbonemissions5.polluteinshoreseawater6.destroylocalecologicalenvironmentNowthinkaboutmoreadvantagesanddisadvantagesofbuildingthehotelatWhiteBeach.Activity10Workinpairs.Role-playadiscussiontoreachanagreementthatissatisfactoryforeveryone.Usetheexpressionsinthissection.Nowthinkabouthowwellyouapproachedtheproblemfromdifferentperspectivesandreachedanagreement.StudentA:Youareahoteloperatorwhowantstobuildahotelonsomeforestedland.StudentB:Y