人教版英语必修二Unit-3(Who-Am-I？)教学设计

WhoAmI教学设计教学目标：1.Knowledgeaims:1)Togetstudentstonoticeandlearnsomeusefulwordsandexpressionsandsomecomponentofacomputer.2.Abilityaims:1)Totrainstudentsreadingskillthroughfastreadingandreadingfordetails.2)Todevelopstudents’abilitytousethephraseslearntwhilereadingtowriteashortpassageaboutanobjectwhichcontainsacomputer.3)Totrainstudentsabilitytofindinformationindifferentways.3.Emotionalaims:1)Togetstudentstoknowaboutthedevelopmentofcomputers.2)Togetstudentstoknowtheimportanceofcomputersinourdailylife.3)Togetmakestudentstogetachancetodeveloptheirimaginationanddesignanobjectwithacomputerinsideintheirownways.学情分析：AsforstudentsofSeniorOne,studentshavemasteredaseriesofbasicknowledgeandsomereadingskills.What’smore,forthespecifictopicofcomputers,studentsareinterestedinthiskindofinformation.Soteachersneedtogivethemsomeusefulandbackgroundinformationtohelpthemunderstandthistopicfully.重难点分析：1.Toenablestudentstolearnreadingskillsthroughfastreadingandreadingfordetails.2.Togetstudentstolearntowriteashortpassageaboutanobjectwithacomputerinsideafterreading.教学过程：Step1:Warmingup:Showapictureofapersonalcomputer.T:What’sthis?DoyouknoweachpartofthecomputerinEnglish?Hostcomputer/monitor/mouse/keyboard/screen/speaker/T:Therearemanycomputersinthehostcomputer.Doyouknowwhatarethey?Ifso,Pleaseraiseyourhandandtellus.RAM/harddisc/powersupply/displaycard/DVDROMT:Asweallknow,computersarewidelyusednowadays.Forme,Iusuallydothisonmycomputer.Thisisoneofmypictures.Ireallywanttomakeitmorecharmingandmakemyselfmuchmorehandsome.SoIdoitonmycomputer.Look!DoyouthinkI’mmorehandsomeinthispicture?ThenitbecamethecoverofmyCD.T:Computershavechangedourlivesalot,sowhatcanwedowiththehelpofcomputers?Ss:Withthehelpofcomputers,wecan……(1).playcomputergames(2).chatonline(3).sendemailstofriends(4).downloadmusicandfilms(5).searchforinformation(6).dobusinessorwork(7).usecomputerforschoolwork(8).doon-lineshopping……Thereisnodoubtthatcomputersareplayinganimportantrole(正起着重要的作用)inourdailylife.Step2:ReadingFast-reading:T:Readthroughquicklyandanswerfollowingtwoquestions:1)Whoisthespeaker?2)Canyoufindthetopicsentenceofeachparagraph?•Paragraph1.Overtime,Ihavebeenchangedalot.•Paragraph2.Thesechangesonlybecamepossibleasmymemoryimproved.•Paragraph3.Sincethe1970s,manynewapplicationshavebeenfoundforme.Tip:Eachtopicsentencemayhavesomekeywordswhicharecloselyrelatedtothedetailsineachparagraph.Readingfordetails:T:Accordingtothekeywords,wecanfindmoredetailsineachparagraph.Sofirst,readparagraph1andfillintheblanks.Ibeganasa____________machinein1642inFrance.Nearly200yearslater,Iwasbuiltasan___________machine.Thenin1936,abookabouthowIcouldbemadetoworkasa“__________machine”waswritten.Bythe_________,Iwasaslargeasaroom.Astimewentby,Iwasmade________.Sincethe1970s,Ihavebeenusedinofficesandhomes,firstasa______andthenasalaptop.T:accordingtoparagraph1,andthesepictures,wecanknowwhatchanged?Theshapeofthecomputerchanged.Thesizeofthecomputerfirstbecame_larger_andthen__smaller_.T:ReadParagraph2andanswerfollowingquestions:1)Whydidthesechangesbecomepossible?2)Howdidthememoryimprove?3)Howdidthecomputershareitsknowledgewithothers?Checktheanswersasaclass.T:Readparagraph3,andfillinthechart.applicationscommunication__________________________________________________________________spacerocketsCarefulreading:T:Now,lookatthetimeline,.Let’sreadthepassageagainandfindwhathappenedateachtime.1936(1822)164216421940s1940s1970sbeganasacalculatingmachineananalyticalmachinemadebyCharlesBabbageauniversalmachine,AlanTuringahugecomputer,aslargeasaroom,30Carefulreading:AtimelineNowapersonalcomputerandalaptop,andusedinofficesandhomessincethe1970s…Connectpeopleallovertheworldtogether.1960s1960sThefirstfamilyofcomputerswasconnectedtoeachother.Checktheanswersbyaskingstudentstosayitoutonebyone.T:Afterreadingthepassage,andaccordingtothetimeline,I’msureyoucangetthemainideaofthepassage.Thepassageisorganizedintheorderoftime.Andthepassageismainlyaboutthehistoryofthedevelopmentofthecomputer.Step3:AfterreadingT:Astimegoesby,weliveabetterlifeofhighqualitywiththehelpofthecomputer.Butdoyouknowwhatcomputersare?Aretheseallcomputers?(showsomepictures)Yes,theyareindifferentshapesandsizes,buttheyareallcomputersormaybedeviceswithacomputerinside.So,ifyouareadesigner,canyoudesignsomethingusefulwithacomputerinside?Pleasehaveapairworkandmakeawonderfuldesignwithyoupartner.ThenIwillasksomeofyoutohaveareport.Iwillgiveaprizeforoneofyouwhosedesignisthebest.Youarethejudges,ok,let’sbegin.Step4:Ending:Endthelessonbysharingthreedesigns,andgivetheprizetothestudentwhosedesignisthemostpopular.Step5:Homework:Writeapassageaboutyourdesignanddrawapicturebesideit.