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时间:2020-03-19
《(仁爱版)九年级英语上册课件:Unit 4 Topic 3 Section C.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit4AmazingScienceTopic3Chinaisthethirdnationthatsentapersonintospace.SectionCWhatarethecomputersusedfor?1a1.Tickthefieldsweusethecomputerin.educationbusinessindustrycommunicationdailylifemedicalcareentertainmentsportsDoctorscanfinddiseaseseasilywiththehelpofcomputers.C
2、anyougiveanexampleoftheuseofthecomputerinoneofthefieldsabove?Inspace,computershavebeenusedtocontrolthespeedanddirectionofaspaceship.Whatisthepassageabout?TheImportanceofComputersUnderlinethetopicsentenceofeachparagraph.1.SincecomputerswereinventedintheUSAinthe1950s,theyhav
3、ebecomeveryimportantinmanyareasofworkandleisure.2.SincetheInternetcameintobeing,people’slivesathomehavebeenchanged,too.3.Computershaveimprovedourlives,buttheyhavebroughtproblems,too.PlaceTheusageofcomputersInspaceInhospitalsInfactoriesInbusinesscontrolthespeedanddirectionfi
4、nddiseaseseasilyandsolveotherproblemsdodangerousworkusedtoplaceandcancelordersParagraph1Thereisnodoubtthatwewillbesuccessful.Idon'tdoubtthattheywillbeabletosolvetheproblems.doubtn.&v.怀疑,疑惑(2)doubt(vt.)+从句(3)doubt(vi.)+about/ofDoubtisthekeytoknowledge.Thereisnoreasontodoubto
5、fhishonesty.Idoubtwhether/ifhe'llchangehismind.(1)doubt(n.)Paragraph11.Thereisnodoubtthatcomputersareveryusefulintechnologyandbusiness.毫无疑问电脑在技术和贸易业都非常有用。2.Forexample,tinycomputerswhichareinsidepatients’bodiescankeeptheirheartsbeatingnormally.例如,病人体内植入微电脑能帮助病人的心脏正常搏动。64英寸超大
6、型(Huge)32英寸大型(Large)16英寸中型(Medium)8英寸小型(Small)4英寸超小型(Tiny)tinyverysmallinsizeadj.极小的,微小的atinygirlParagraph1prep.在……内adv.在里面Languagepoints3.Thewholeworldisconnected.网络连接了全世界。connectv.连接connectionn.关系,联系1.connectAwithB使A与B连接2.connectsth.(tosth.)使电、气、水等接通3.connectsb./sth.(with
7、sb./sth.)与……有联系,把……联系起来Paragraph2comeintobeingmoreandmorewatchmoviesthankstodobusinessinsteadofchatonlinemaketheworldsmaller做买卖形成,产生越来越多看电影代替网上聊天使世界更小多亏,由于Paragraph21.Forinstance,ifweworkoncomputerstoolong,wemaygetheadachesorsoreeyes.比如:如果我们使用的电脑工作的时间太长,我们就会头昏眼花。forinstance
8、=forexample用来举例说明某一论点或情况,一般只举同类人或物中的“一个”为例。suchas用来列举事物时,一般列举同类人或事物中的几个例子。E.g.(1)M
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