新教材2021学年高中英语人教必修第二册课件Unit3Period4DiscoveringUsefu

Unit3TheInternetDiscoveringUsefulStructuresTeachingobjectives:Bytheendofthisperiod,youwillbeableto…1.analyzetheformsandfeaturesofthepresentperfectpassivevoice.2.findoutthedifferencesinmeaningandfunctionbetweentheactiveandpassiveforms.3.masterthefunctionsofthepresentperfectpassivevoiceinthecontextanduseitinrealsituations.WhataspectsinyourlifehavebeenchangedsincetheappearanceoftheInternet?LeadinBeforeAfterTransportReadingPaymentEntertainmentTrytotellthechangesaccordingtothetableusingthepresentperfectpassivevoice.foot;bike;bus;trainplane;high-speedrailpaperbooksE-booksincash;bycreditE-paymentwatchmoviesinthetheater…Streammoviesandmusic;chatonline…1.Jan’slifehasbeengreatlyimprovedbytheInternet.TheInternethasgreatlyimprovedJan’slife.2.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.ObserveandanalyzeUnderlineandcomparethedifferentverbforms.Active__________________Passive_________________TheformofthepresentperfectpassivevoiceVerbformhave/has+v-edhave/hasbeen+v-edPracticeChangethesentencesintothepresentperfectpassivevoice.ExampleTheyhavebuiltakindofnewPCwithmorefunctions.→AkindofnewPChasbeenbuiltwithmorefunctions.1.Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.2.Someonehaslostanidentitycard.3.HaveyouconfirmedtheWi-Fipassword?4.Haveyoupressedthebuttonyettocopythefile?5.Hasanyonemadeacommentabouttheonlinedatabase?1.Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.2.Someonehaslostanidentitycard.3.HaveyouconfirmedtheWi-Fipassword?4.Haveyoupressedthebuttonyettocopythefile?5.Hasanyonemadeacommentabouttheonlinedatabase?Thesoftwarehasbeendownloadedtohelpmyphonebatterylastlonger.Anidentitycardhasbeenlost.HastheWi-Fipasswordbeenconfirmed?Hasthebuttonbeenpressedyettocopythefile?Hasa/anycommentbeenmadeabouttheonlinedatabase?Whatarethedifferencesinmeaningandfunctionbetweentheactiveandpassiveforms?Theobjectinanactivesentencebecomesthesubjectinapassivesentence.Bothsentencetypesconveyasimilarmeaning,buttheyareslightlydifferent.Activesentencesareusedoften,astheyaremoredirect.Passivesentencesareoftenusedwhenthedoerofanactionisunknown,notimportant,orpreferrednotnamed.Weuseitwhensomethinghasbeendonebysomeoneatsometimeuptonow.Wearenotinterestedintheactor(行动者).Subjectanditsverbshouldbeinaagreement.thepresentperfectpassivevoiceCompletethenoticewiththecorrectformsoftheverbsinbrackets.(WorkbookP75Activity4)NoticetoparentsDearParents,Wehopeyouwillwelcomethisnews.Almost100computers___________(give)tousbyalocalcomputercompanysincetheendoflastyear.Adecision____________(make)tobeginacomputerteachingexperimentatourschool.Ourplan________________(support)withtechnicalequipmentandadvicewhich_______________(provide)bytheCityInformationTechnologyCenter.Everyteacher_________________(provide)withalaptopsincethebeginningofthisterm.Moreimportantly,mostofourcourses________________(teach)usingcomputers.We________________(help)inourteachingbyalotofinformationfromtheInternet.Also,anewcomputerroom_______________(setup)inourschool.Wehopeyouwillbehappywiththisexcitingnewdevelopmentinourschool.No.8SeniorHighSchoolhasbeenmadehasbeengivenhasbeensupportedhasbeenprovidedhasbeenprovidedhavebeentaughthavebeenhelpedhasbeensetupEnjoythepoemLookatthewayyourfacehasbeenwashedLookatthewayyourteethhavebeenbrushedLookatthewayyourshoeshavebeencleanedYou’dbetterdothemagainLookatthewaytheflowershavebeenplantedLookatthewaythegrasshasbeencutLookatthewaythepathshavebeensweptIhopethatyou’llcomehereagain1.Whatarethesubjectsofyourpoems?2.Canyoulistsomeverbsconnectedtothesubjects?3.Canyoumakeasentenceaccordingtotheexample?Films,pictures,flowers,trees…Make,paint,plant…Lookatthewaythepictureshavebeenpainted.Lookatthewaythefilmshavebeenmade.BrainstormWritingThinkofyourownsituationandwriteasimilarpoem.LookatthewayyourfacehasbeenwashedLookatthewayyourteethhavebeenbrushedLookatthewayyourshoeshavebeencleanedYou’dbetterdothemagainLookatthewaytheflowershavebeenplantedLookatthewaythegrasshasbeencutLookatthewaythepathshavebeensweptIhopethatyou’llcomehereagain√Haveyouusedthepresentperfectpassivevoiceinyourwriting?√Isyourwritingclearandlogical?√Areallthewordspeltcorrectly?√Isyourhandwritingeasytoread?Self-assessmentLookatthewaythepicturehasbeenpaintedLookatthewaythefilmhasbeenmadeLookatthewaythepoemhasbeenwrittenNowthinkaboutwhatyoucouldcreateLookatthewaytheneedyhavebeenhelpedLookatthewaytheriverhasbeencleanedLookatthewaythetreehasbeenplantedNowthinkhowtomaketheworldabetterplaceFinishtheActivities2、3、5inUsingStructureofWorkbookonpage74-75.