2013-2014学年度第一学期高一英语必修2教案Unit3：Computers---王兴祖Unit3:ComputersPeriodOneTheGeneralIdeaofThisPeriod：ThisperiodincludesWarmingup，ReadingandComprehendingofUnit3.Itintroducesthehistoryanddevelopmentofcomputers.Fromthisperiodthestudentswilllearnmoreaboutcomputers.Meanwhiletheycanlearnsomereadingstrategiessuchasskimmingandscanning.TeachingAims：1.Trainthestudents’readingability.2.Learnsomeusefulwordsandexpressions.3.Learnmoreaboutcomputers.TeachingImportantPoints：1.Helpthestudentstounderstandthepassagebetter.2.Learnhowtousesomeimportantwordsandphrasesinthispassage.TeachingDifficultPoints：1.Howtohelpthestudentsimprovetheirreadingabilityandunderstandthepassagebetter.2.Learnhowtousesomeimportantwordsandphrasesinthispassage.TeachingMethods：1.Skimmingthepassagetogetthegeneralideaofthetext.2.Scanningtogetthedetailsfromthepassage.3.Explanationsandpracticetohelpthestudentsmastersomelanguagepoints.4.Discussiontohelpthestudentsunderstandbetterwhatthey’velearnedandtousetheknowledgethey’velearnedinthisperiod.TeachingAids：1.Ataperecorder.2.Amultimedia.TeachingProcedures：Step1Warmingup1.Greetingthestudentsasusual.2.IntroducethetopicofcomputersShowthefivepictures（anabacus，ahugecomputer，acalculator，aPC，anotebookcomputer）andgetthestudentsnametheminEnglish.Throughthistask，studentscanhaveageneralideaaboutwhattheyaregoingtolearn.Besides，studentsareexpectedtohaveadiscussionaboutwhattheyhaveincommonwhilelookingatthem.Andtheyarerequiredtousethegivenexpressionsintheirdiscussiontoexpresstheirideas.T：Boysandgirls，todayIamgoingtointroducesomemachinestoyou.Nowlet’sseewhetheryoucannametheminEnglishcorrectly，andtalkaboutthem.Nowworktogetherwithyourpartnersandtrytofindoutwhattheyhaveincommon.Twominuteslate，fivestudentsareaskedtotalkabouttheminclass.S1：AnabacusisanoldcalculatingmachineusedinChinauntilnow.S2：Ahugecomputerisbuilttosolvesomemathematicalproblems.But，inmyopinion，itistoobig.S3：Acalculatorisanewcalculatingmachinewhichcansolvealargenumbermathematicalproblems.AndIthinkitisveryconvenienttocarryanduse，soweoftenuseit.S4：APCisapersonalcomputer，whichcansolveallkindsofproblemsandiswidelyusedin12013-2014学年度第一学期高一英语必修2教案Unit3：Computers---王兴祖offices，schools，shops，athomes，etc.now.S5：Anotebookcomputerisakindofusefulcomputerwhichcanbetakenconvenientlylikeanotebook.ButIthinkitistooexpensive.T：Quitegood.Itseemsthatyouareallquitefamiliarwiththesemachines.Butcanyoutellwhattheyhaveincommon?Anyvolunteers?S6：Letmetry.Ithinktheyallcalculatesomething.Theycandealwithsomemathsproblems.S7：Ibelievethattheyareourgoodfriends.Withtheirhelpwecanfinishourworkquickly.S8：The21thcenturyisthecenturyofinformationtechnology.Asmiddleschoolstudents，weshouldtrytolearnhowtousecomputers.T：Well，youropinionsareallright.Indeed，thesemachinesallcancalculatesomething.What’smore，fromtheabacustothenotebookcomputer，thereisalongway.Butnowcomputershavealreadychangedourlivesgreatly.Butdoyouknowmoreaboutcomputersandcanyousaysomethingabouthowcomputershavechangedourlives.Step2Pre-readingShowthequestionsonthescreen.T：Now，pleasehaveadiscussionfirst，andthenI’llasksomestudentstoreportyourwork.Afterafewminutes.T：Now，whowouldliketoanswerthefirstquestion?Volunteer!S9：I’llhaveatry.Iknowthatcomputershavedevelopedfromlargemachines.Theyhavebeenmadesmallerandsmaller，butworkfa...
