Unit4Topic3SectionC

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1、Unit4AmazingScienceTopic3Chinaisthethirdnationthatsentapersonintospace.SectionCWhatdoyouknowaboutthespaceships?Whatcancomputersdotospaceships?Astronautsusecomputerstocontrolthespeedanddirectionoftheirspaceships,eventhetemperature.Spaceshipsmainlyuseelectroni

2、ccontrols.Whatelsecancomputersbeusedfor?Forinstance/example,computerscanbeusedfor…1a1.Tickthefieldsweusethecomputerin.educationbusinessindustrycommunicationdailylifemedicalcareentertainmentsportsDoctorscanfinddiseaseseasilywiththehelpofcomputers.Canyougiveane

3、xampleoftheuseofthecomputerinoneofthefieldsabove?Inbusiness,computersareusedtoplaceandcancleorders.下订单和取消订单Thereisnodoubtthatcomputersareveryimportant.毫无疑问Underlinethetopicsentenceofeachparagraph.1.SincecomputerswereinventedintheUSAinthe1950s,theyhavebecomeve

4、ryimportantinmanyareasofworkandleisure.2.SincetheInternetcameintobeing,people’slivesathomehavebeenchanged,too.3.Computershaveimprovedourlives,buttheyhavebroughtproblems,too.PlaceTheusageofcomputers(Computerscanbeusedto…)InspaceInhospitalsInfactoriesInbusinessc

5、ontrolthespeedanddirectionofaspaceshiphelpdoctorsfinddiseaseseasilyandsolveotherproblemscontroltherobotstododangerousworkplaceandcancelordersParagraph1comeintobeingmoreandmorewatchmoviesthankstodobusinessinsteadofchatonlinemaketheworldsmaller做买卖形成，产生越来越多看电影代替网

6、上聊天使世界更小多亏，由于Paragraph2Retellit!Whatproblemshavecomputersbrought?Wemaygetheadachesorsoreeyes.Wewon’thaveenoughtimetostudyorexercise.NoteverythingontheInternetistrueorgoodforus.Paragraph31aReadandunderstand.1b2.Completethefollowingdiagram.computersusageproblemw

7、orkdailylife____________________________ofaspaceship.helpdoctors_____________________________._______________________________infactories.helpbusinessmen_____________________.playgamesand__________________________._______________and_____________athome._________

8、__________bysendinge-mailsand_______________________________.getheadachesor_____________________.don’thaveenoughtime__________________.somethingonInternetisnot________________.cont