新教材2021学年高中英语人教必修第二册课件Unit5Period4DiscoveringUsefu

Unit5MusicDiscoveringUsefulStructuresTeachingobjectives:Bytheendofthisperiod,youwillbeableto…1.mastertheusageofpastparticiples’servingaspredicative.2.mastertheusageofpastparticiples’servingasadverbial.3.usepastparticiplesfreelyintheircommunication.Lead-inDescribethefollowingpictures.Theboyisa_________inreadingabook.Thepeoplearee______.Theboyiss______.excitedabsorbedsurprisedPastparticipleservingasthepredicative.ExploringthedifferencesObservethefollowingsentencesandfindoutthedifferencesbetweenverb-edandverb-ingasadjectives.1.ThenewsthatManWenjuntookdrugswasverysurprising.2.AtthenewsthatManWenjuntookdrugs,wefeltsurprised.3.Yourperformancesaresatisfying.4.Iamsatisfiedwithyourperformances.5.Thecupisbroken.现在分词作表语时，句子主语多是物，它表示给别人造成的感觉，表示主动意义；而过去分词作表语时，句子主语多是人，表示主语的感受，表示被动意义；句子主语是物时，表示主语所处的状态。PracticeTask1Lindaistalkingwithhisfather.Usethecorrectformoftheverbtofillineachblank.(1)tired(2)burned(3)bored(4)disappointing(5)pleased(6)challenging(7)relaxedTask2Playagame每人说一个含有过去分词作表语的句子(看哪组说得又快又好)。(参考词汇：excited,frightened,puzzled,astonished,interested,pleased,delighted,disappointed,lost,satisfied,surprised,worried,tired,broken…)Thegirlisfrightenedtoseesnakes.Iampuzzledatthemathproblem.MostmiddleschoolstudentsareinterestedinreadingEnglishnovels.Iamdelightedtohearfromyou.Tomfeltdisappointedtohearthathisinvitationwasturneddown.Mymotherisnotworriedaboutmystudy.PastparticipleservingastheadverbialObserveandlearnLookatthefollowingsentencesandunderlinethepastparticiples.Inpairs,discusstheirfunctions.1.BornintheUSAon2January1970,WhitacrebeganstudyingmusicattheUniversityofNevadain1988.2.Movedbythismusic,hesaid,“Itwaslikeseeingcolorforthefirsttime.”3.Inspired,heaskedhisfanstomakevideos,whichhethenjoinedtogetherintooneperformance.Task1Observethesentencesagainandfigureouttherelationshipbetweentheunderstoodsubjectoftheverb-edandthesubjectofthemainclause.1.BornintheUSAon2January1970,WhitacrebeganstudyingmusicattheUniversityofNevadain1988.2.Movedbythismusic,hesaid,“Itwaslikeseeingcolorforthefirsttime.”3.Inspired,heaskedhisfanstomakevideos,whichhethenjoinedtogetherintooneperformance.Averb-edformhasanunderstoodsubject.Theunderstoodsubjectisusuallythesameasthesubjectofthemainclause.Theverb-edformispassiveinmeaning.Task2Task3Observethefollowingsentencesandthinkaboutwhatmeaningtheverb-edphrasesexpress.1.Askedwhyhewasagainstcloninghumans,thescientistexplainedthatitmightleadtodisaster.2.Shockedbythearticle,thewomanwrotealettertothenewspaper.3.Heated,themetalwillexpand.1.Theverb-edphrase“Askedwhy…”expresses“time”.Itcanbechangedintoanadverbialclause,“Whenhewasaskedwhyhewasagainstcloninghumans”.2.Theverb-edphrase“Shockedby…”expresses“reason”.Itcanbechangedintoanadverbialclause.“Becauseshewasshockedbythearticle”.3.Theverb-edphrase“Heated”expresses“condition”.Itcanbechangedintoanadverbialclause.“Ifthemetalisheated”.Task4Rewritethefollowingsentencesusingpastparticiplesastheadverbialandthinkaboutwhatarethedifferencesbetweentheoriginalsentencesandtherewrittenones.1.Henrywashighlyinterestedinmusicandbegantowriteoriginalcompositionswhenhewasinhighschool.2.TheywerepleasedwithhismusicandsongsandfinallyinvitedhimtoperformintheSilverHall.3.Thoughhewasaffectedbygradualblindnesssoonaftertheperformance,Henrywasstillcapableofwritingcompositionsandhefoundthatcreatingmusicwasareliefandcureforhisillness.4.Whenhegotabsorbedinhisworldofmusic,hefeltasifhecould“see”thebeautyoftheworldaroundhim,likehehadinhispreviouslife.1.Highlyinterestedinmusic,Henrybegantowriteoriginalcompositionswhenhewasinhighschool.2.Pleasedwithhismusicandsongs,theyfinallyinvitedhimtoperformintheSilverHall.3.Thoughaffectedbygradualblindnesssoonaftertheperformance,Henrywasstillcapableofwritingcompositionsandhefoundthatcreatingmusicwasareliefandcureforhisillness.4.Absorbedinhisworldofmusic,hefeltasifhecould“see”thebeautyoftheworldaroundhim,likehehadinhispreviouslife.改写后的句子在表达上更为简洁和凝练，是一种较高级的语言组织方式，同时突出了句子的表达重心，在正式文体中使用较多。Task5Summary过去分词作状语的句子作状语的过去分词常常相当于一个状语从句过去分词的逻辑主语和句子主语一致过去分词与其逻辑主语之间是被动关系ConsolidationCompletethepassagewiththewordsinbracketsintheircorrectforms.Well-knownasasuccessfulband,theImpactmembersshowquiteafewstrikingqualities.Theyneverevergiveup.When____________(question)bythemedia,theyarenot___________(discourage)andpractiseevenharder.Theyareimprovingthemselvesbyattendingseveralmastertrainingclasses.Theyareunited.______(fill)withteamspirit,theyactasawhole,alwaysaimingforglory.Filledquestioneddiscouraged1.Write10sentencesusingpastparticiplesservingaspredicativeandadverbial.2.Finishofftheexercisesonworkbook“UsingStructures1----3”.