义务教育高中英语导学案与练习必修二(unit3 computers--period2 learning about language)

义务教育高中英语导学案与练习必修二(unit3 computers--period2 learning about language)

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时间:2018-08-05

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1、Period2LearningaboutLanguageTheGeneralIdeaofThisPeriod:Thisperiodincludesrevisionofthetext、learningaboutlanguage.Fromthisperiodthestudentswilllearnhowtousesomeofthekeywordsandexpressionsinthetextanddosomeexercisesforconsolidation,andlearnhowtousethePresentPerfectPassiveV

2、oice.TeachingAims:1.Helpthestudentstolearntousesomeusefulwordsandexpressions.2.Enablethestudentstolearnhowtousethepresentperfectpassivevoice.TeachingImportantPoint:Theuseofthepresentperfectpassivevoice.TeachingDifficultPoints:Howtomastertheusagesofsomeimportantwordsandph

3、rasesandthePresentPerfectPassiveVoice.TeachingMethods:1.Task-basedlearning.2.Cooperativelearning.3.Explanationandpractice.TeachingAids:1.Ataperecorder.2.Amultimedia.TeachingProcedures:Step1RevisionT:Boysandgirls,inlastperiodwelearnedsomethingaboutthehistoryanddevelopment

4、ofcomputers.Nowwhowouldliketoretellthetextwiththehelpofthesefigures?S1:Letmetry.In1642,acalculatingmachinewasusedinFrance.Thenin1922,theAnalyticalMachinewasmadebyCharlesBabbage.Itcouldfollowinstructionsfromcardswithholes.In1936,AlanTuring,therealfatherofcomputers,wroteab

5、ooktodescribehowcomputerscouldbemadetoworkandbuilta“universalmachine”tosolveanymathematicalproblem.Later,peoplediscoveredthecomputerhad“artificialintelligence”.Inthe1960s,thecomputergothisnewtransistors.Itssizewastotallychangesatthattime.Andintheearly1960s,thefirstfamily

6、ofcomputerswereconnectedtoeachother.In1970s,computershavebroughtintopeople’shomes.NowcomputershavebeenusedbybillionsofpeopletodealwithinformationandcommunicatewitheachotheraroundtheworldbytheInternet.T:Congratulations!You’vedoneverywell.Nowtrytodothesametoyourpartners,OK

7、!Step2WordsandExpressionsTask1T:PleaseturntoPage19andfinishDiscoveringUsefulWordsandExpressions.Atfirst,lookatEx.1.Fromthereadingpassage,findthewordsandexpressionswiththefollowingmeanings.Now,tenstudentswillbeaskedtogivethewords.Whocan?Volunteers!Checktheanswerstogether.

8、Task2.T:Welldone.NowpleaselookatEx2.andcompletethepassagewithsomeofthewordsabove.Payattentiontotheusean

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