Unit4 Discover Useful Structures 课件【备课精研+高效课堂】高中英语人教版选择性必修第三册

Discoverusefulstructures人教版新教材选择性必修三Unit4MakeaguessTheyhavebeenlookingafteryousinceyouwereborn.Theyhavebeenprovidingyouwithwhateveryouwant.Theyhavebeenlovingyoudeeply.Doyouknowwhotheyare?parentsThePresentPerfectContinuousTenseInform:have/hasbeendoingInmeaning:theactioniscontinuousfromthepastNowlookformoresentenceswiththepresentperfectcontinuoustenseinthereadingpassage,andsummariseitsuseinyourownwords.Itrainedlastnight,butitstoppedthismorning.Observeanddiscover1.ThisistheadventurethatIhavebeendreaming

of.2.Wearenowcampedonthericeandwehavebeenmanaging

tosurvive,butspringiscoming,andtheicewillsoonbegintomelt.3.We

havebeenstruggling

fordays,butthingsonElephantIslandaregoingfrombadtoworse.Thepresentperfectcontinuoustense现在完成进行时

We

fordays.havebeenstrugglinghave/hasdonebedoingcontinuoustense进行时

presentperfecttense现在完成时Whatkindoftenseisusedinthesentence?have/has+been+doing现在完成进行时FORM:DISCOVERTask1Completetheconversation.Puttheverbsintothepresentperfectprogressive.Interviewer:LiuFang,what___________________(do)recently?LiuFang:Well,I_______________(give)concertsinAmerica.学Interviewer:Haveyou______________(play)anynewpieces?LiuFang:Yes.I__________________(play)someclassicalAmericantunes.Interviewer:Whatelsehaveyou____________(do)?LiuFang:I__________________(learn)howtoplaythekonghou.网haveyoubeendoinghavebeengivingbeenplayinghavebeenplayingbeendoinghavebeenlearningPast2hoursagonowreadingfuturestartedstillgoonhasbeenreadingDISCOVERSorry.Haveyoubeenwaitinglong?Ihavebeenwaitingforanhour.LilyCathyDISCOVERPastOnehouragonowwaitingarrivesfuturehasbeenwaitingstartedCathyLilyDISCOVERConcludeWeusethepresentperfectprogressivetensetotalkaboutnon-stopactions

thathavejustfinishedbutarestillconnectedtothepresentinsomeway.HestartedlearningEnglishin2010.HeisstilllearningEnglishnow.HehasbeenlearningEnglishfor6years/since2010.DISCOVERPast2010nowlearningfuturestartedstillgoonhasbeenlearningDISCOVERWealsousethepresentperfectprogressivetensetotalkaboutactionsthatstartedinthepastandarestillcontinuing.Conclude表示动作从

开始一直持续到现在，这动作可能刚

也可能

.

过去停止继续下去Summary1PRACTICEUnderstandthefollowingsituationsandcompletethesentences.Payattentiontothetimeadverbials.Practice1Itbegantorainthismorning.Itis6pmnowanditisstillraining.It__________________allday..hasbeenrainingHeisstilllearningChinesenow.He_________________________sinceDecember.hasbeenlearningChinesePractice2Mikebeganlookingforajobsixmonthsago.Heisstilllookingnow.Mike________________________forsixmonths.hasbeenlookingforajobPractice3She_________________(study)inthelibraryeverynightoverthelastthreemonths.hasbeenstudyingPractice4I_______________(sit)hereenjoyingthemusicallthemorning.havebeensittingPractice5Ithasbeenrainingallday.HehasbeenlearningChinesesinceDecember.Mikehasbeenlookingforajobforsixmonths.Shehasbeenstudyinginthelibraryeverynightoverthelastthreemonths.Ihavebeentypingthewholemorning.Ihavebeensittinghereenjoyingthemusicallthemorning.

alldayCommontimeadverbialssinceDecemberforsixmonthseverynightoverthelastthreemonthsallthemorningIthasbeenrainingallday.Hehasbeenwaitingforacarfor20minutes.HehasbeenlearningChinesesinceDecember.Ihavebeentypingthewholemorning.

alldayCommontimeadverbialsinceDecemberfor20minutesthewholemorningSummarizethetimeadverbialfor+时间段/since+时间点allday/allnight/allthemorning/allthetimethisweek/thismonthrecently最近Summary2ExtensionSpotthedifferencebetweenthetenses.have/hasbeendoingVS.have/hasdonehave/hasbeendoingVS.be(was/were)doing

LinZipengwasreadingthebook.LinZipenghasreadthebook.LinZipeng

hasbeenreadingthebookallthemorning.bereadinghasreadhasbeenreadingDISCOVERLiJiahasreadabook.Shelikesitverymuch.LiJiahasbeenreading

abook.

Shefinishedreadingthebook.Sheisstillreadingthebook.SpottheDifferencehavebeendoingVS.have/hasdoneABABTom’sclothesarecoveredwithpaint.Hehasbeenpaintingtheroom.Theceilingwaswhite.Nowitisgreen.Tomhaspaintedtheroom.ABABHefinishedpaintingtheroom.Heisstillpaintingtheroom.Maryisbusy.Shehasbeencleaningtheroom.Theroomistidy.Maryhascleanedtheroom.ABABShefinishedcleaningtheroom.Sheisstillcleaningtheroom.FunctionA.thepresentperfecttense现在完成时B.thepresentperfectprogressivetense

现在完成进行时1.________isusedtotalkaboutanactioncompletedintherecentpastbutareconnectedwiththepresent.2._______isusedtotalkaboutanactionthatstartedinthepastandisstillhappeningoranon-stopactionorarepeatedactionuntilrecently.AB---Mr.Wolf,whathaveyoubeenbusywiththesedays?---I________________(try)tocatchgoats,but______never________(catch)asingleonesofar.havebeentryinghavecaughtpastpresentfuturehas/havedonehasbeendoingIwillbebacksoon!PracticeSummary3be(was/were)doing强调过去某时刻或某段时间正在进行的动作;have/hasdone强调动作已经完成/结束,行为结果在现在能感受到;have/hasbeendoing强调动作仍在持续，有时候带有感情色彩。Difference动作的延续性动作的结果Task2Completethepassagewiththecorrectformoftheverbs.Lastnight,I___(went/havebeen)toseeaconcertbytheChinese-bornCanadianartistLiuFang.ShewasborninChinaand____(studied/hasbeenstudying)musicinShanghai,butshe_____(lived/hasbeenliving)inCanadasince1996.She_____(played/hasbeenplaying)traditionalChinesemusicsinceshewasveryyoung.Lastnight,she____(performed/hasperformed)aseriesofclassicalChinesepiecesforthepipaandtheguzheng.I____(bought/havebought)aCDofhermusicaftertheconcertandI___(listened/havebeenlistening)toitalldaytoday!Interviewyourpartneraboutsomethingabouthe/she:hobbies,newhabits,family,hometownanddreametc.Thefollowingquestionsmighthelpyou.Doyouhaveanyhobbiesorinterests?Howlonghaveyoubeenlearning/playing…?Whathaveyoubeendoingrecently?REQUIREMENT:Usethepresentperfectcontinuousifpossible.A:Doyouhaveanyhobbies?B:Sure.Ihaveseveralhobbiessuchastabletennis,photography,andkiteflying.Butmyfavouritehobbyisplayingtheguitar.A:Howlonghaveyoubeenlearningtheguitar?B:IhavebeenlearningtheguitarsinceIwaseightyearsold.IsawavideoofsomeoneplayingandIfellinlovewithit.A:That’sgreat.ShowTime!Fillintheblanks.I________________withashadowoverhead.I__________________withacloudabovemybed.I____________________allmyhopesanddreamsaway.I___________________asidetime.I___________________butthestarsrefusetoshine.I___________________butIjustdonotseethesigns.I______________________someonetoshedsomelight.havebeenlivinghavebeensleepinghavebeenhidinghavebeensettinghavebeenwatchinghavebeensearchinghavebeenlookingforWriteashortreportaboutsomethingaboutyourfriend:hobbies,newhabits,family,hometownanddreame