高中英语必修7Unit 3 The world online-Word powerVIP专享VIP免费

Unit3Theworldonline●WordpowerStep1:Brainstorming1.GuessingGame:Atthebeginningoftoday’sclass,let’splayaguessinggame.Hereareseveralcards,eachofwhichisrelatedtotheInternetoracomputer.I’dlikeoneofyoutogiveabriefdescriptionoftheeachdeviceandotherstudentstoguesswhatitis.Forreference1.Youseeasetofkeysfortyping.(keyboard)2.Youuseittostoreinformation.Itcanstoremoreinformationthanafloppydisk.(harddrive)3.Youseewordsandpicturesonit.(screen)4.Itisamachinethatputswordsandpicturesontopaper.(printer)5.Itisasmalldevicemovedbyhand.Itcontrolsthecursoronthescreen.(mouse)6.Itisapartofthecomputerwherethesoundcomesout.(speaker)7.Thesearesetsofinstructionsthatcontrolyourcomputer.(program)8.Itisashort,movablelineonthescreen.(cursor)9.Itisasmallsquareofplasticonwhichacomputermousemoves.(mousemat)2.Nexttimeyouareinourschool’scomputerroom,noticehowweoperateacomputer.Step2:Vocabularylearning1.DoyouknowabouttheoperationofacomputerandtheknowledgeofInternet?We’llconductaquestion-and-answeractivity.Pleasespeakoutwhatyouknowasmuchaspossible.ThepurposeofthisactivityistomakeyoumorefamiliarwiththewordsandtermsconnectedtotheInternet.2.ReadPartAandmakesurethatyouknowwhatthesewordsinbluemeanorrefertoinChinese.3.FocusonPartBandreadthesentencesindividuallyfirst.MakesurethatyouknowwhatthesewordsmeanorrefertoinChinese.4.Readthee-mailinPartC,whichwaswrittenbyKennytohisgrandpaabouttheInternet.Youarerequiredtocompletethee-mailwiththewordsdiscussedonpage38.Trytoguessthemeaningsofthenewwordsfromthecontext.Thenwe’llchecktheanswers.AnswersC(1)browse(2)searchengine(3)webaddresses(4)links(5)website(6)webpage(7)homepage(8)backarrow(9)refresh(10)minimize(11)download(12)virusStep3:Vocabularyextension1.InPartD,youwilllearnsomeabbreviationsthatpeopleuseinInternetchatrooms.Whetheryouhaveusedtheseabbreviationsbefore?Astheabbreviationsuseonlythefirstlettersofeachword,itisfasttotypethemwhenchattingonline.Itisverypopularamongyoungpeopletousethesewords.2.YoucansometimesworkoutwhatanInternetabbreviationstandsforbyreadingthelettersoutloud,forexample:用心爱心专心116号编辑B4(before)OIC(oh,Isee.)CUL8R(seeyoulater.)I’llexplainsomeotherexpressionstoyou:BTW(bytheway)BFN(byefornow)3.CompletePartDindividually.Thenwe’llchecktheanswers.AnswersD1LOL2FYI3KIT4BRB5BTW6TA7YW8TIA9CU10ASAP4.Reading:words:288time:4’20’’TheInternetbeganinthe1960sasasmallnetworkofacademicandgovernmentcomputersprimarilyinvolvedinresearchfortheU.S.military.Originallylimitedtoresearchersatahandfulofuniversitiesandgovernmentfacilities,theInternethasquicklybecomeaworldwidenetworkprovidinguserswithinformationonarangeofsubjectsandallowingthemtopurchasegoodsdirectlyfromcompaniesviacomputer.By1999,84millionU.S.citizenshadaccesstotheInternetathomeorwork.MoreandmoreAmericansarepayingbills,shopping,orderingairlinetickets,andpurchasingstocksviacomputerovertheInternet.Internetbankingisalsobecomingincreasinglypopular.Withloweroverheadcostsintermsofstaffingandofficespace,Internetbanksareabletoofferhigherinterestratesondepositsandchargelowerratesonloansthantraditionalbanks.“Brickandmortar"banksareincreasinglyofferingonlinebankingservicesviatransactionalwebsitestocomplementtheirtraditionalservices.Atpresent,14percentofInternethouseholdsconducttheirbankingbymeansoftheInternet,andthefigureisexpectedtodoubleortripleduringthenexttwoorthreeyears.IncreasingcommercialuseoftheIntern...