Unit3DiscoveringUsefulStructures導(dǎo)學(xué)案高中英語(yǔ)人教版答案

DiscoveringUsefulStructuresThepresentperfectpassivevoice導(dǎo)學(xué)案TalkaboutsomethingthathasbeendoneLearningobjectives:TolearnsomebasicwordsandexpressionsaboutthepartofdiscoveringusefulstructuresToIdentifyandsummarizetheformandthefunctionofthepresentperfectpassivevoice,anduseittodescribethechangestheInternetbringstoourlife.Learningkeypoints:ToIdentifyandsummarizetheformandthefunctionofthepresentperfectpassivevoice,anduseittodescribethechangestheInternetbringstoourlife.LearningdifficultpointDescribethechangesthattheInternethasbroughttopeople'slivesinthepassivevoiceofthepresentperfecttense.PreclassvocabularyimplementationWords:（單詞）functionbatteryconfirm WiFipress buttonfileLexicalchunk(詞塊）Downloadthesoftware copythefileverbform identitycardWiFipasswordOnlinedatabaseWorldWideWebLearningprocedures：Step1:leadinLookatsomepicturesaboutmultimediadevice,suchastelephone,puter,laptop,scanner,andsoon.AskthestudentsWhattheycansee?Askthemwhethertheyhavenoticedthebigchangesinourdaily?Thesenewdeviceshavebeenusedinrecentyears.andmadeadifferenceinourdailylife.Step2:UnderlineandparethedifferentverbformsandwritedowntheirstructuresActivehave/has+vedActivehave/has+vedTheInternethasgreatlyimprovedJan’slife.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.PassivePassivehave/hasbeen+vedJan’slifehasbeengreatlyimprovedJan’slifebytheinternet.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.Step3:asksthestudentstolookanddiscusswhatthesesentenceshaveinmon.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.People’sliveshavebeenchangedbyonlinemunitiesandsocialnetworks.Manypeoplehavebeenhelpedbytheclub.Jan’slifehasbeengreatlyimprovedbytheInternet.Step4:Changethesentencesintothepresentperfectpassivevoice,andsharewhattheyfindandsharethedifferencesofthefunctionbetweenthepresentperfectpassivevoiceandthepresentperfectactivevoice.EXAMPLE:They'vebuiltakindofnewPCwithmorefunctions.→AkindofnewPChasbeenbuiltwithmorefunctions.1Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.Thesoftwarehasbeendownloadedtohelpmyphonebatterylastlonger..2Someonehaslostanidentitycard.Anidentitycardhasbeenlost..3HaveyouconfirmedtheWiFipassword?HastheWiFipasswordbeenconfirmed?.4Haveyoupressedthebuttonyettocopythefile?Hasthebuttonbeenpressedyettocopythefile?.5Hasanyonemadeamentabouttheonlinedatabase?Hasa/anymentbeenmadeabouttheonlinedatabase?.Step5:.Summarizethemeaningofthepresentperfectpassivevoiceandhowtochangethepresentperfectactivevoiceintothepresentperfectpassivevoice:1.ThepresentperfectpassivevoiceisagrammaticalconstructioninEnglishthatbinesthepresentperfecttensewiththepassivevoice.Itemphasizesthecurrentresultorimpactofapastaction.Itcanbeusedtotalkaboutexperiencesorchangesthathaveoccurreduptothepresent.2.“三變”：①原句主語(yǔ)變?yōu)閎y的賓語(yǔ)②原句賓語(yǔ)變?yōu)橹髡Z(yǔ)③原句謂語(yǔ)由主動(dòng)變?yōu)楸粍?dòng)3.“三不變”：①原句意思不變②原句時(shí)態(tài)不變③原句主謂賓以外的成分不變Step6：Practice1.People'sliveshavebeenchanged(change)byonlinemunitiesandsocialnetworks.2.Manypeoplehavebeenhelped(help)bytheclub.3.Jan'slifehasbeengreatlyimproved(improve)bytheInternet.4.Butmuchmorehasbeendone(do)forpeoplebytheInternetthansimplymakelifemoreconvenient.5.Wuzhenhasbeenbrought(bring)greatbenefitsbytheInternet,asmallwatersidetowninZhejiangProvince.6.Wuzhen'stransporthasevenbeenchanged(change)bytheInternet7.Forthepastfewyears,theWorldInternetConference(WIC)hasbeenhosted(host)inWuzhen,whichmakeslifeinthisancienttownmuchmore