高中英語北師大版選擇性必修四Unit 12 Period 1　Topic Talk

Period1TopicTalkUnit12INNOVATIONBytheendoftheperiod,youwillbeableto:1.talkaboutinnovationsanddiscoveries;2.listenforgeneralunderstanding;3.listenforspecificinformationandunderstandwordsincontext.NamethefourancientChineseinventionsPrintingPaper-makingGunpowderThecompassLead-inListentoDialogue1.PairworkWhatinventionsordiscoveriesaresignificantinimprovingthequalityofhumanlife?Whataretheinventionsyoucannotlivewithout?Why?Pre-listeningHealthyandWell-beingVitamintablets______...EntertainmentandCommunicationTheInternet_____...TravelandTransportAeroplanes______...Example

TheInternetisaninventionthatIcannotlivewithoutasIuse

iteverydayforstudy,funandcommunication.

IthinkDrYuanLongping’shybridriceisanimportantinvention,becauseithelpseasetheworld’shungerproblem.Inmyopinion,theaeroplaneisreallyofgreatsignificance,becauseitcantakeuswhereverwewanttogoinaveryshorttime.Task1:Listentothedialogueandthenchoosethebestanswer.1.WhatistheSusanLi?A.Sheisayoungstudent.B.Sheisayounginventor.C.Sheisayoungprofessor.2.Whatisthefunctionofherinvention?A.Itcancleanplasticandgarbageontheground.B.Itcanbeusedintheocean.C.Itcanhelpsolvewaterpollution.3.Whatisthedisadvantageofherinvention?A.Itiseasytouse.B.Itisveryexpensive.C.Itcanbeputintooperationsoon.√√√While-listeningTask2:Listenagainandanswerthequestions.1.WhatcharacteristicsdoesSusanLithinkinventorshave?2.WhatdoweknowaboutSusanLi’sinvention?

1.WhatcharacteristicsdoesSusanLithinkinventorshave?▲Inventorsareinterestedin____________________and_________________________.▲Theyare_______and_______.▲Theyalwaysthink_____________.understandinghowourlivescanbeimprovedcreativecuriousoutsidetheboxtheworldCheckyouranswers2.WhatdoweknowaboutSusanLi’sinvention?▲Herinventionisatypeof________________________________.▲Thebiggestadvantageisthatitis__________.▲However,itis_________toproduceatthemoment.plasticandtouseexpensivegarbagegatheringdeviceeasyCheckyouranswersListentoDialogue2.1.Whatarethespeakersdoing?A.Theyaretalkingaboutcomputers.B.Theyaredoingaschoolproject.C.Theyarechattingwithfriends.2.Whatistherelationshipbetweenthem?A.Classmates.B.Teachersandstudents.C.Friends.3.WhendidtheInternetbecomewidelyused?Inthe1960s.B.Inthe1980s.C.Inthe1990s.Beforelistening,lookthroughthefollowingquestionsandgetthekeyinformation.Pre-listeningTask1:Listentothedialogueandthenchoosethebestanswer.1.Whatarethespeakersdoing?A.Theyaretalkingaboutcomputers.B.Theyaredoingaschoolproject.C.Theyarechattingwithfriends.2.Whatistherelationshipbetweenthem?A.Classmates.B.Teachersandstudents.C.Friends.3.WhendidtheInternetbecomewidelyused?Inthe1960s.B.Inthe1980s.C.Inthe1990s.√√√While-listeningTask2:Listenagainandanswerthequestions.1.BeforetheinventionoftheInternet,whomainlyusedcomputers?2.WheredidpeoplegetinformationbeforetheinventionoftheInternet?1.BeforetheinventionoftheInternet,whomainlyusedcomputers?BeforetheinventionoftheInternet,onlyscientistsandothertechnicalpeopleusedthem.2.WheredidpeoplegetinformationbeforetheinventionoftheInternet?BeforetheinventionoftheInternet,peoplehadonlyTV,newspapersandbookstogetinformation.CheckyouranswersTask3:Listenagainandfillintheblankswiththewordsyouhear.CY:OK,ChenXiandLiZhen,let’sgetthisprojectstarted!Ms

Dingaskedustothinkof1._____________________inoureverydaylife.Whatdoyouboththink?CX:Right.Well,forme,itwouldhavetobecomputers.Ispendsomuchtimeon2.____________________,playinggames,chattingwithfriends...L:Computersareagoodchoice,butitreallywas3.________________________

thatmadethemuseful.Beforethat,onlyscientistsandothertechnicalpeopleusedthem.Now,becauseof4.__________,thereisa

reasonforusalltohaveone.themostusefulinventionmycomputerstudyingtheinventionofthetheInternetInternetTask3:Listenagainandfillintheblankswiththewordsyouhear.CY：Yes,Iagree.TheInternetisanamazinginvention.Beforethat,peoplehadonlyTV,newspapersandbooksto5._____________.CX：AndofcoursebeforetheInternet,youcouldn’tchatwithfriends6.______orsendandreceiveemails.Onlytelephonecallsandletters.L：Wow,sowhenwastheInternet7.________?Ohwait.Let’sch