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Period2LearningaboutLanguageTheGeneralIdeaofThisPeriod：Thisperiodincludesrevisionofthetext、learningaboutlanguage.Fromthisperiodthestudentswilllearnhowtousesomeofthekeywordsandexpressionsinthetextanddosomeexercisesforconsolidation，andlearnhowtousethePresentPerfectPassiveVoice.TeachingAims：1.Helpthestudentstolearntousesomeusefulwordsandexpressions.2.Enablethestudentstolearnhowtousethepresentperfectpassivevoice.TeachingImportantPoint：Theuseofthepresentperfectpassivevoice.TeachingDifficultPoints：HowtomastertheusagesofsomeimportantwordsandphrasesandthePresentPerfectPassiveVoice.TeachingMethods：1.Task-basedlearning.2.Cooperativelearning.3.Explanationandpractice.TeachingAids：1.Ataperecorder.2.Amultimedia.TeachingProcedures：Step1RevisionT：Boysandgirls，inlastperiodwelearnedsomethingaboutthehistoryanddevelopmentofcomputers.Nowwhowouldliketoretellthetextwiththehelpofthesefigures?S1：Letmetry.In1642，acalculatingmachinewasusedinFrance.Thenin1922，theAnalyticalMachinewasmadebyCharlesBabbage.Itcouldfollowinstructionsfromcardswithholes.In1936，AlanTuring，therealfatherofcomputers，wroteabooktodescribehowcomputerscouldbemadetoworkandbuilta“universalmachine”tosolveanymathematicalproblem.Later，peoplediscoveredthecomputerhad“artificialintelligence”.Inthe1960s，thecomputergothisnewtransistors.Itssizewastotallychangesatthattime.Andintheearly1960s，thefirstfamilyofcomputerswereconnectedtoeachother.In1970s，computershavebroughtintopeople’shomes.NowcomputershavebeenusedbybillionsofpeopletodealwithinformationandcommunicatewitheachotheraroundtheworldbytheInternet.T：Congratulations!You’vedoneverywell.Nowtrytodothesametoyourpartners，OK!Step2WordsandExpressionsTask1T：PleaseturntoPage19andfinishDiscoveringUsefulWordsandExpressions.Atfirst，lookatEx.1.Fromthereadingpassage，findthewordsandexpressionswiththefollowingmeanings.Now，tenstudentswillbeaskedtogivethewords.Whocan?Volunteers!Checktheanswerstogether.Task2.T：Welldone.NowpleaselookatEx2.andcompletethepassagewithsomeofthewords,above.Payattentiontotheuseandtheformsofthosewords.Thepossibleanswers：networksothatwentbytotallytrulysimple-mindedAnywaydealwithTask3T：PleasefinishEx.3.LookatthesentencesonPage20.Ticktherightword.Thensomeofyouwillbeaskedtoreadthesentencesonebyone.Thepossibleanswers：1.LifetotallychangedwhenIwenttouniversity.2.IwasamazedtofindthatIwonthecompetitiontodesignanewcomputer.3.Thecompetitionwassoexcitingthatwecheeredallevening.4.IwassoexcitedatthethoughtofmeetingYangLiweithatIcouldnotsleep.5.RobotscanbeboughtsocheaplythatIgaveonetoeachofmyfriends.6.Itwassounluckythatyoulostyourwatchattheconcert.Task4T：PleaseturntoPage56andlet’sfinishUsingWordsandExpressions.FirstlookatEx.1.Readthroughthewordsintheright-handboxbelow.Usesomeofthemtonameeachpartofacomputerintheleft-handbox.Wehaveknownaboutcomputer.Butwhocangiveustheexactnames?Thepossibleanswers：1.floppydisc2.harddisc3.scanner4.modem5.CD-ROM6.monitor7.keyboard8.printerTask5T：NowpleaselookatEx.2.Completethesentenceswithsomeofthewordsintheright-handboxabove.Youcanuseeachwordonlyonce.Firstdotheexerciseindividually，andthencheckyouranswerswithyourpartners.Andlastsevenstudentswillbeaskedtoreporttheiranswerstotheclass.Thepossibleanswers：1.Aprinterisamachineforprintingtextorpicturesontopaper，especiallyonceconnectedtoacomputer.2.ACD-ROMordiskisthemaindevicethatacomputerusestostoreinformation.3.Amonitorisusedtoseeyourdataonacomputer.4.Akeyboardisusedtoputdataintoacomputer.5.ACPUisoftenusedtoconnectcomputerstoeachotherthroughphonelines.6.Datacanalsobestoredinafloppydisc，whichissmallandcanbecarriedeasily.7.Aharddiscisadiscthatcontainscomputerdata.Itcanstorealargeamountofdata.Step3Grammar—ThePresentPerfectPassiveVoiceT：Boysandgirls，nowpleasepayattentiontothefollowingsentencesinthetext：1.Astheyearshavegoneby，Ihavebeenmadesmallerandsmaller.2.Sincethen，myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformationandcommunicatewitheachotheraroundtheworldbytheInternet.3.Ihavetrulybeenbuilttoservethehumanracesincemybirth.T：Whatverbtenseisusedinthesesentences?Andwhatverbvoiceisusedinthesesentences?Yes，thepresentperfectpassivevoiceisusedinthesesentences.,Canyoutellusthestructureofthepresentperfectpassivevoice?Quiteright.Thestructureofthepresentperfectpassivevoiceis“subject＋have/hasbeendone＋object”.Thefunctionofpresentperfectpassivevoiceisindicatingverbs’thepresentperfectandthepassivevoice.OK，let’spractisethepresentperfectpassivevoice.Task1T：PleaseturntoPage20.Let’sfinishDiscoveringusefulstructures.Atfirst，lookatEx.2.Accordingtoexamples，changethefollowingsentencesintothepresentperfectpassivevoice.Puttheverbsintothecorrectform.Suggestedanswers：1.Anewpersonalcomputerhasbeenbought.2.Manyproblemshavebeenfoundwithournewcomputer.3.APChasbeenbuiltthewaywewanted.4.OurcomputerhasjustjoinedtotheInternet.5.Thecomputerhasbeenusedeverydaysinceweboughtit.6.Alotofe-mailshavebeenwrittenonthecomputerinthelastyear.Task2T：Class，let’splayagamecalled“Whathasbeendecided”.Now，getintogroupsoffour.Yourtaskistodecidewhatthingshavebeendecidedfortheclass.Taketurnstomaketheideasasinterestingandlivelyasyoulike.YoumayfinishthemaccordingtoEXAMPLESonPage21，（orfinishEx.3afterclass.）Thencollecttheonesyoualllikebestandbepreparedtotellthemtotheclass.Suggestedanswers：S1：Ithasbeendecidedthatthosewhoknowofthecomputerwillbeaskedtosaysomethinginclass.S2：Ithasbeendecidedthatthosewhodidn’tcleantheblackboardwillbeaskedtocomeintoofficeafterschool.Task3T：Now，pleaseturntoPage57.Finishusingstructures.First，lookatEx.1andchangethefollowingsentencesaccordingtothemodel，andpayattentiontothepassivevoiceform.Firstdotheexerciseindividually，andthencheckyouranswerswithyourpartners.Afterthatwe’llchecktheanswersinclass.Step4HomeworkT：OK，it’salmosttimeforabreak.NowlookatEx.2onPage57.TranslatethefollowingsentencesintoEnglishafterclass.Thewordsandexpressionsinbracketsmayhelpyou.Step5TheDesignoftheWritingontheBlackboardUnit3ComputersPeriod2ThePresentPerfectPassiveVoice1.Astheyearshavegoneby，Ihavebeenmadesmallerandsmaller.2.Sincethen，myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformationandcommunicatewitheachotheraroundtheworldbytheInternet.3.Ihavetrulybeenbuilttoservethehumanracesincemybirth.Structure：“subject+have/hasbeendone+object”Step6RecordafterTeaching
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