牛津深圳版9A Chapter 2 Electric machines 九年级英语全册英语课件(6个)打包牛津深圳版VIP免费

Chapter2Chapter2ElectricmachinesElectricmachinesWhatkindofmachinesuseselectricity?Howmanyelectricmachinesarethereinyourhome?Doyouhaveacomputerathome?Isituseful?Whatdoyoudowiththecomputer?Percentoftheusage:Internetwashingmachinetelevisionairconditionerironfridge100%90%80%50%10%2%LanguageListeningReadingSpeakingWritingMorepracticeReadPartAandBandcirclethenewwords,thentrytofindoutthemeaningsofthem.1.electricadj.2.monitorn.3.keyboardn.4.mousen.5.mainunitn.6.drivesn.7.speakern.8.floppydiskn.9.CD-ROMn.10.informationn.11.controlv.12.recordv.13.electronicsn.14.taskn.15.accordingto16.atpresent17.typev.18.containv.19.unimportantadj.20.spaceshipn.drivesmonitorkeyboardCD-ROMsmainunitmousespeakersfloppydiskVocabulary:1.The_________showswordsandpictures.2.Youusethe__________fortypingininformation.3.The_________recordsinformation.4.The_________helpsyoucontrolthecomputer.monitorkeyboardfloppydiskmouseVocabulary:5.The_________containsallthecomputer’selectronics.6.Wecanhearthesoundfromthe_________.7.Weput_________intothe_______inthemainunit.8.Wecanget__________fromdifferentways,suchasreading,watchingTV,surfingtheinternetandsoon.mainunitspeakersCD-ROMsdrivesinformationBFindthefacts:Computers…1.maybeinsidesomemachinesinourhomes.2.candounimportantjobslikeflyingspaceships.3.candotasksaccordingtotheprograms.4.atpresentareclevererthanpeople.importantnotclevererTherearefiveshorttextstypicalofinformationleafletsornewspaperormagazinearticlesinthispart.Listentothetapeandtrytotellthemainideaofeachparagraph.P18:HiddenhelpersTheremayalsobetiny,hiddencomputersinyourhomebutyoumightbeunawareofthem.Notes:1.tiny--small2.hidden----hide3.beunawareof–notknowingaboute.g.Thestudentwasunawareofhismistakes.Youaremoredependentoncomputersthanyourealize.Notes:4.dependent—adj.needingsomeoneorsomething.depend----v.依赖;依靠(on)e.g.Youshouldnotbedependentonyourparentsallthetime.5.realize---v.notice;knowaboute.g.Ididnotrealizeyouwereright.P18:HiddenhelpersComputersareprobablythebestcalculators…andrarelygivewronganswers….likediagramsandgraphs.P19:Whatkindofjobscanacomputerdo?Notes:6.probably–adv.maybe;perhaps7.calculator--n.smallelectronicdevice8.rarely--adv.notoften;seldom9.diagram--n.alinedrawingthatshowshowsthworks.10.graph–lineorlinesshowingthevariation.Moreimportantly,theycanoperaterailways…11.importantly---adv.(adj.important)12.operate---v.control,keeprunning---operationn.手术Notes:P19:Whatkindofjobscanacomputerdo?…butitisessentialforpeoplenottomakemistakes.Otherwise,thecomputerwillnotworkwell.13.essential–adj.necessary;mostimportant14.otherwise---conj.Ifnot;ifconditionsweredifferentNotes:P19:Howdowegiveacomputerinstructions?Theanswertothisquestionis,fortheTimebeing,“No”….creatnewideas.…thandoctors,judgesandteachers….Thisraises…15.forthetimebeing---(adv.Phr.)16.creat—v.produce;makeNotes:P19:IsacomputerclevererthanIam?17.judge—n.aseniorlawofficer18.raise—v.mentionsthforpeoplePage201.HardlyeverA.sometimesB.seldomC.often2.dependentonA.needingB.trustingC.playingwith3.realizeA.allowB.understandC.decideC14.rarelyA.oftenB.sometimesC.seldom5.essentialA.verydangerousB.verysafeC.verynecessary6.containA.preventB.removeC.includeC1AB1.beunawareofa.make(it)work2.tinyb.peoplewhomake3.diagramslegaldecisions4.operatec.verysmall5.forthetimebeingd.atpresent6.judgese.bringstoour7.raisesattentionf.donotknowaboutg.s...