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【精品】高中英语(人教大纲)第二册下:Unit18 Inventions(第四课时)VIP免费

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TheFourthPeriodTeachingAims:1.Learnareadingpassagetoimprovethestudents’readingability.2.Dosomewritingpracticetoimprovethestudents’writingability.3.Learnsomeusefulwordsandexpressions.TeachingImportantPoints:1.Improvethestudents’integratingskills.2.ReviewtheAttributiveClause.TeachingDifficultPoint:Howtoimprovethestudents’integratingskills.TeachingMethods:1.Readingandunderstandingtoimprovethestudents’readingability.2.Writingpracticetoimprovethestudents’writingability.3.Individualorpairworktomakeeverystudentworkinclass.TeachingAids:1.themultimedia2.theblackboardTeachingProcedures:StepⅠGreetingsGreetthewholeclassasusual.StepⅡLead-inandReadingT:Howmanyofyouhaveacomputerathome?Pleaseputupyourhands.(Somestudentsputuptheirhands.)Good.Mostofyouhaveacomputer.Whatdoyoudowithyourcomputer?S:IsearchforinformationontheInternet.AndsometimesIplaygameswithit.T:Doesanybodydoanythingelsewithit?S:Isometimesdrawpicturesortypesomething.S:Forme,Isometimessende-mailstomyfriends.S:Ilistentothemusic.S:Iwatchfootballmatches.…T:Doyouthinkthecomputerisreallyusefultoyou?S:Notexactly.Icanalsodothesethingswithoutacomputer.IcangotoalibrarytolookfortheinformationthatIneed.Butit’smuchquickerandmoreconvenientifIuseacomputer.S:Icanlistentothemusiconataperecorder.S:IcanwatchfootballmatchesonTV.…T:You’requiteright.Newtechnologyisoftenusedinoldways.Now,pleasehaveadiscussioningroupsoffourtocompletethechartshownonthescreen.(Showthefollowingonthescreenandgivethestudentsamomenttohaveadiscussion.)TechnologyUsageComputerUsedasatypewriter————————1————————TheInternetUsedasalibrary——————————————————————————————————————————————(Afterafewminutes,askseveralstudentstosaytheiranswers.Studentsmayhavevariousanswers.)Suggestedanswers:TechnologyUsageComputerUsedas:atypewriteraprojectoravideogameplayeradrawingboardTheInternetUsedas:alibraryaTVatelephonearadioUsedto:sende-mailsreadnewsfromhomeandabroadCellphoneUsedas:atelephoneatelephonedirectoryavideogameplayerawatch/calendaranalarmclockUsedto:sendinformationtoothersT:Welldone!Now,let’sreadthepassageaboutnewtechnologycarefully.Trytofindouttheanswerstothetwoquestionsonthescreen.Afteryoufinish,youmayhaveadiscussioninpairs.(Thefollowingquestionsareshownonthescreen.)1.Whyarescientificmetaphorslike“memory”and“cutandpaste”useful?Howmaytheylimitourthinking?2.ThinkofmorewordsweusetotalkaboutcomputersandInternet.Howwelldotheydescribethethingsoractionstheyareusedfor?Arethereotherwordswecouldusethatmightbebetter?(Amomentlater,checktheanswerswiththewholeclass.Studentsmayhavevariousanswerstothesecondquestion.)Suggestedanswers:21.Theymakeiteasierforustounderstandanduseanewtool.Theymaymakeitmoredifficultforustousethenewinventioninthebestway.2.Wordslike:copy,file,delete,lock,enter,return,storeStepⅢExplanationT:Now,Ithinkyou’veunderstoodthepassagewell.Pleaselookatthescreen.I’llexplainsomeexpressionsthatyoumustmaster.Pleaselistencarefully.(Themultimediashowsthefollowing.)LanguagePoints:1.sb.besaidtobe…e.g.Heissaidtobeagoodbasketballplayerwhenhewasyoung.2.AbesimilartoBe.g.Hisnewbikeissimilartomine.3.bedifferentfrome.g.Ourlifeisdifferentfromwhatitwastenyearsago.4.nowthate.g.Nowthatyou’vegrownup,youmuststopthischildishbehaviour.(Explainthenotestostudentsandwritethefollowingontheblackboard:sb.besaidtobe;Abesimila...

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【精品】高中英语(人教大纲)第二册下:Unit18 Inventions(第四课时)

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