八年级英语上册Unit3Computers课件-牛津深圳版

Unit3ComputersModule2Scienceandtechnology自主预习一、根据汉语写出英文单词1.(计算机)显示器(n.)_________________2.扬声器(n.)_________________3.打字(v.)_________________4.受喜爱的；受欢迎的(adj.)_________________5.操纵；控制(v.)_________________6.依靠；依赖(v.)_________________7.极小的；微小的(adj.)_________________8.昂贵的；价格高的(adj.)_________________9.比较；对比(v.)_________________10.操作；控制(v.)_________________11.总额；合计(n.)_________________12.订货；订购(n.)_________________monitorspeakertypepopularcontroldependtinyexpensivecompareoperatetotalorder二、根据汉语写出下列词组1.依靠_____________________2.总计；共计_____________________3.盼望；期待_____________________4.除……之外（还）_____________________5.怎样处理_____________________6.玩电脑游戏_____________________7.没意识到；未察觉_____________________8.从事……工作_____________________dependongrandtotallookforwardtoinadditionwhat...dowithplaycomputergames(be)unawareofworkas三、翻译下列句子1.现在电脑正变得更小、更好。__________________________________________2.你对电脑的依赖程度比你意识到的要深得多。__________________________________________3.它们能比我们计算得更快,而且几乎从不出错。____________________________________________________________________________________4.此外,电脑还能做一些重要的工作,例如操控铁路系统,驾驶飞机和宇宙飞船。____________________________________________________________________________________5.例如,它们可能比人类(医生)更胜任医生这种工作。____________________________________________________________________________________Nowcomputersarebecomingsmallerandbetter.Youdependoncomputersmorethanyourealize.Theycancalculateatafasterspeedthanwecanandalmostnevergivewronganswers.Inaddition,computerscandoimportantjobslikeoperatingrailwaysandflyingplanesandspaceships.Forexample,theymaybebetterthandoctorsatdoingtheirjob.词汇精析【1】ordern.arequestforgoods订货，订购;aconditionofregularorproperarrangement顺序；秩序We’vereceivedanorderforthreetonsofcoal.我们已经收到了两吨煤的订单。Pleasearrangeinalphabeticalorder.请按字母顺序排列。【拓展】(1)keepsth.inorder使某物有次序It’snoteasyfortheteacherstokeeptheirclassesinorder.教师要把课堂秩序维持好是不容易的。（2）order还可以作动词，意为“命令；订购；点餐”，ordersb.todosth.命令某人做某事Heorderedthemtostarttheworkatonce.他命令他们马上开始工作。【应用】(1)Heorderedtheenemysoldiers__________(put)downtheirguns.(2)()Pleasekeepalltheitemsorder.A.inB.outofC.withtoputA【2】comparev.findoutthesimilaritiesordifferencesbetweenthings比较；对比Youshouldcomparethepricesbeforeyoubuysomething.你应该在买东西前比较一下价格。【同根词】（1）comparativeadj.比较的Whydon’twedosomecomparativeadvertising？我们为什么不能做一些对比广告呢？（2）comparisonn.比较；对比HewroteapaperonthecomparisonbetweenChinesecultureandAmericanculture.他写了一篇关于中国文化和美国文化的比较的论文。【拓展】(1)compare...with...把……与……作比较Compareyourlifestylewithhis,hisishealthier.用你的生活方式与他的比较，他的更健康。(2)compare...to...把……比喻成……PeopleoftencompareyoungpeopletotherisingSun.人们常把年轻人比喻成正在升起的太阳。【应用】(1)Thereisno______________(compare)betweenthetwo.(2)()Comparethiscar______thatone,andyouwillfindthedifferencesbetweenthem.A.toB.withC.for(3)()Thissongcomparesourcountryabigfamily.A.toB.withC.forcomparisonBA【3】speakern.someonewhotalks（especiallysomeonewhohasapublicspeech）演讲者;apieceofelectricalequipment,forexamplepartofaradioorsetofequipmentforplayingCDsortapes,throughwhichsoundcomesout扬声器Thesoundsoftheguitararesentthroughthespeaker.吉他的声音通过扬声器传送出去。【同根词】（1）speakv.“说；讲”，其过去式为spoke，过去分词为spoken。IrangthehotelandspoketoLouie.我打电话给宾馆，跟路易通了话。（2）speechn.演讲；讲话Hisspeechinspiredthesoldierswithcourage.他的讲话激发了战士们的勇气。【拓展】speak，tell与say的用法区别（1）习惯用法：①表示“演说；演讲；发言”等，一般用speak。Whoisgoingtospeakatthemeeting?谁将在会上发言？②表示“讲故事；说谎”等，一般用tell。Heoftentellsusinterestingstories.他经常给我们讲有趣的故事。tellastory讲故事tellthetruth说实话③表示“说某种语言”，一般用speak。DoyouspeakFrench?你会说法语吗?（2）tell可意为“讲述；告诉”。tellsb.sth.意为“告诉某人某事”；tellsb.（not）todosth.意为“告诉某人（不要）去做某事”。（3）talk一般为不及物动词，意思是“交谈；谈话”，着重强调两者之间的相互说话。talk常用短语为talkabout。（4）say一般用作及物动词，着重强调说话的内容，它的宾语可以是名词、代词或宾语从句。Hecansayhisname.他会说他的名字。PleasesayitinEnglish.请用英语说。She’ssaying，“Don’tdrawonthewall.”她在说：“别在墙上画。”【应用】（1）Thefirst__________（speak）begantotalk,veryfastandratherloudly.（2）Whenshewasyoung,she__________（speak）EnglishintheUSA.speakerspoke【4】controlv.tousepowertomanageorcommand操纵，控制（机器或系统等）Youmustlearntocontrolyourtemper.你必须学会控制你的脾气。【拓展】(1)losecontrol失去控制Youshouldn’tlosecontrol.你不应该失控。(2)outofcontrol失去控制Theplaneisoutofcontrol.飞机失控了。(3)undercontrol处于控制之下Thefirehasbeenbroughtundercontrol.火势已受到控制。(4)underone’scontrol在某人的控制下DuringtheWorldWarII,theareawasunderthecontroloftheUSNavy.二战期间，这一地区被美国海军所控制。【应用】()Everythingis______control.A.onB.outC.underC【5】dependv.toneedthehelpofsomeone,ortotrustthatsomeonewilldosomething依靠；依赖AlllivingthingsdependontheSunfortheirgrowth.万物依靠太阳生长。【同根词】（1）dependentadj.依赖的Childrenaretotallydependentontheirparentsforfoodandshelter.小孩子完全依赖父母提供食宿。(2)dependencen.依靠Helivedinastateofdependenceonhisfriend’shelp.他依靠朋友的帮助而生活。(3)independentadj.独立的Weshouldlearntobeindependent.我们应该学会独立。(4)independencen.独立Hewasafraidoflosinghisindependence.他担心丧失自己的独立。【拓展】dependon依靠；依赖；取决于。当意为“依靠”时，相当于relyon；意为“取决于”时，相当于bedecidedby。Youcandependonher，becauseshealwayskeepsherpromises.你可以信赖她,因为她一向都是信守诺言的。Howmuchitcostsdependsonhowmuchyoubuy.价钱取决于你买多少。【应用】(1)()Thelittleboyalwaysdependsonhismother.(选出可以替换画线部分的最佳选项)A.reliesonB.isdecidedbyC.believesin(2)Indiagained________________(depend)fromBritainin1947.(3)Allis____________