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【精品】高中英语(人教大纲)第二册下:Unit11 Scientific achievements(第一课时)VIP免费

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Unit11ScientificachievementⅠ.BriefStatementsBasedontheUnitScienceandtechnologyarepartofproductiveforces.Themodernsocietyhasprovedit.Asweallseenow,scientificachievementshavechangedthewholeworldandmadepeoplebreakawayfromignoranceandbackwardness.Thesocietyhasmadegreatprogress.Thisunitisarrangedaroundthecentraltopic—scientificachievement.InWarmingup,thereareseveralpicturesaskingstudentstotalkaboutthemostsignificantscientificachievements.TheSpeakingpartintroducesfourdifferentscientistswhowanttogetmoneytocompletetheirprojectswhichareveryhelpfultohumanbeings.Thereadingmaterial—Zhongguancun,whichiscalledChina’sSiliconValley,isthenewcentreforChinesescienceandtechnology.Bystudyingthisunit,studentsalsoknowthatChinesehistoryisfilledwithgreatachievementsinscienceandtechnology.Inparticular,sincetheyear1995theChinesegovernmentputforwardaplanfor“rejuvenatingthenationbyrelyingonscienceandeducation”andthishashelpedChinesescientistsmakemanybreakthroughs.ThisunitpresentsfoursuchresultsinIntegratingSkills.AstoGrammar—WordFormation,teachershouldletstudentsmastersomeknowledgeofformingaword,andknowhowtousestemsandaffixestoformacompound.Ⅱ.TeachingGoals1.Talkaboutscienceandscientificachievement.2.Practiseexpressingintentionsandwishes.3.LearnaboutWordFormation(1).4.Writeapersuasionessay.Ⅲ.BackgroundInformation1.TheInfluenceoftheComputerAbouttenyearsago,thecomputerwasastrangemachine.Notmanypeopleunderstoodit.Notmanypeoplesaidyestoit.Today,muchofthatischanging.Thefirstcomputersystemwasintroducedforuseinbusinessinthemid-1950s.Sincethen,thenumberofcomputersystemsusedinbusiness,governments,andinstitutions(公共机构)hasgrownrapidly.In1975,about250000systemswereinuseintheUnitedStates.Thisfigureisgrowingbytensofthousandseveryyear.Theelectroniccomputerisanimportantfactorinourlives.Eachyearweusecomputersmoreandmoretohelpustocollectdataandtoprovideuswithinformation.Atonetime,peoplethoughtcomputerswereonlyusefulforbanks,departmentstores,andgovernments.Buttodaytherapidlyincreasingnumberofcomputersareusedformanyotherpurposes.Haveyoueverstoppedtothinkhowyouareaffectedbycomputer?Theclothesyouwearwereprobablymadewiththehelpofacomputer.Thenewspaperyoureadcouldhavebeeneditedandtypedbyacomputer.Evenradioprogramsareoftenpreparedbycomputers.Computerstodayareplayingimportantrolesineducation,transportationandmedicine.Theyareusedtopredicttheweather,toexaminetheocean,andtodevelopdefencesystems.Theyarebeingusedbybusinesses,governments,andinstitutions.Thereisnoreasontothinkthattheirusewilldecrease(减少).Computerswillbecomeagreaterpartofourlives.Theinfluenceofthecomputerisgreat.Thelistofitsusescouldgoonandon.Althoughthefirstcomputerwasonlyintroducedinthemid-1950s,computersnowaffectmillionsofpeopleincountlesswayseveryday.2.TheInformationRevolutionTheinformationrevolution:Howdoesitconcernyou?ComputersAreChangingYourWorld.用心爱心专心1Tenyearsago,in1986,desktopcomputerswerejustbeginningtomaketheirentranceintotheworldofbusiness.Now,theyareinvading(涌入)thefamilyhomeatarapidpace.Moreimportantly,however,theyarealsochangingthewaywelookattheworld.Theinformationsuperhighwayisnowopentoincreasingnumbersofordinarypeople.Thesuperhighwayisprovidingordinarypeoplewithimmediateaccesstoahugeamountofinformation.Itisalsogivingthemalmostunlimitedopportunitiesofcommunicationwithpeoplearoundtheworld.Ordinarypeoplenowhavepowertogainknowledg...

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【精品】高中英语(人教大纲)第二册下:Unit11 Scientific achievements(第一课时)

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