Unit3+Section+I.ppt

随着网络技术的快速发展，方便、快捷的网上购物渐成趋势。现在越来越多的人在网上购买自己喜爱的图书。,MoreChinesebuybooksonlineOnlineshoppingisbecomingpopularinChina，andmoreandmoreChinesearebuyingbooksontheNet.About63percentofChineseInternetusershavemadeonlinepurc-hases(购买)and56percentofthemh-aveboughtreadingmaterials,thehig-hestratio(比率)intheworld，saidareport.,Butaccordingtothefourthnationalreadingsurveyrele-asedbytheChinaResearchInstituteofPublishingScience,theresbeenadecreaseinChinasnationalreadingratiooverthepastsixyears.However，asEcommerce(电子商务)hasbecomepartofpeoplesdailylife,thebookmarkethasseenabigjumpinsalesandreadership.Drecentlysawaboom(兴旺)initssalesandreadership.“Onlinebookstoresmadeitpossibleforpeopletohavemorechoices,andatthesametime，promotetheprintbookmarket，”aresearchersaid.,Yetthingsarenotsogoodfortraditionalbookstores.“Manypeoplecometoourbookstore,justtowritedownthenamesofthebookstheywantandthengoonlinetobuythem，”saidasalesclerkatatraditionalbookstoreinBeijing.Facedwiththelowcostadvantageofonlinebookstores,traditionalonescandonothingbutlowertheirprices.How-ever，HuangYuhai，C，anonlinebooksellersaidthatonlinebookstoresposenothreattotra-ditionalones，insteadtheycanserveasabeneficialcomple-ment(补充),Onlinebooksellersstillhavealongwaytogointermsofsales.“Itisstilltooearlytotell，”Huangsaid，“Theto-talsalesofthreeonlinebookstoresincludingDangdang,Jo-yo，and99readreached500millionyuan，takinguponly2percentofthebookmarketinChinawhileAalo-neholds40percentto50percentoftheAmericanmarket.”,True(T)orFalse(F)：1Buyingbooksfromonlinebookstoresisusuallymoreex-pensivethanbuyingthemfromtraditionalones.(),答案：F,2InChina，thetotalsalesofthreeonlinebookstorestakeuptwopercentofthetotalbookmarket.(),答案：T,SectionIWarmingUp&ReadingPrereading,语篇全面理解,译文全力助渎,Step1FastReadingScanthetextandchoosethebestansweraccordingtothetext.1WhoamI?AAnoperator.BAlanTuring.CAcomputer.DHumanrace.,答案：C,2WhydidItotallychangemyshape?ABecauseIcoulddomanythings.BBecauseIcouldsimplifysums.CBecausemymemoryimproved.DBecauseIneverforgotanything.,答案：C,3Howlongdidittakebeforethecomputerwasbuiltasananalyticalmachine?A500years.B300years.C100years.D200years.,答案：D,4Accordingtothelastparagraph，whichwasnotment-ionedintheuseofthecomputer?AMobilephones.BRockets.CBikes.DRobots.,答案：C,5Wecaninferthatthecomputerwill_.AtaketheplaceofhumanraceBbesmarterthanhumanbeingsCbeusedinmanyfieldsinourlifeDwillbemadebyoneself,答案：C,Step2CarefulReadingReadthepassagecarefullyanddothefollowingtasks.Task1：Readthepassageandfinishthetimelinebelow.1642：_1822：_1936：_1940s：_,1960s：_1970s：_Now：_,答案：1642：Thecomputerbeganasacalculatingmachine.1822：TheanalyticalmachinewasmadebyCharlesBabbage.,1936：Thecomputergrewrapidlybothinsizeandinbrain-power.1940s：Thecomputerhadgrownaslargeasaroom.1960s：Thefirstfamilyofcomputerswasconnectedtoeachother.1970s：Computerswereusedinofficesandhomes.Now：Computersconnectpeopleallovertheworldtogeth-er.,Task2：Trytofindoutthetopicsentenceofeachparagraph.Paragraph1：_Paragraph2：_Paragraph3：_,答案：1.OvertimeIhavebeenchangedquitealot.2Thesechangesonlybecamepossibleasmymemoryimproved.3Sincethe1970smanynewapplicationshavebeenfoundforme.,Task3：Answerthefollowingquestions.1Whatdoesthepassagemainlytalkabout?_,答案：Thedevelopmentofcomputers.,2Whichsentencecantaketheplaceofthesentencebelow?Withtimepassing，Iwasdesignedmuchsmallerthanbefore._,答案：Astimewentby，Iwasmadesmaller.,3TranslatethesentenceintoChinese.ButIwasalwayssolonelystandingtherebymyself，un-tilintheearly1960stheygavemeafamilyconnectedbyanetwork._,答案：但是我总是孤孤单单地站在那里，直到20世纪60年代初，人们才给了我一个用网络联成的家庭。,Step3DiscussionTopic：Whatdoyouthinkisthefutureofcomputer？(within30words)_,答案：Withthedevelopmentofoursociety，computerwillplayamoreimportantpartinourdailylife，anditcanbeusedwidelyintheworld.,Step4SummaryComputersarebecomingmoreandmorepopular._，fewcanimaginewhatthe_computerslookedlike.Atthebeginning，acomputerwasthe_ofalargeroom.Withtime_by，computershavebeenmadesmallerandsmaller.Thesizeofcomputers_changedaftertheywere_withnewtransi-stors.Later，computerswere_byanetwork.Withitpeoplecan_informationwitheachotherand,even_witheachother.Sincethen，computershavecomeintomillionsofhomes.Peoplesliveshavebeco-meeasierandmore_becauseoftheInternet.,答案：Howeveroriginalsizegoingtotallyequippedconnectedsharecommunicatecomfortable,WHOAMI?OvertimeIhavebeenchangedquitealot.IbeganasacalculatingmachineinFrancein1642.AlthoughIwasyoungIcouldsimplifydifficultsums.IdevelopedveryslowlyandittooknearlytwohundredyearsbeforeIwasbuiltasananal-yticalmachinebyCharlesBabbage.AfterIwasprogrammedbyanoperatorwhousedcardswithholes,Icould“think”logicallyandproduceananswerquickerthananyperson.Atthattimeitwasconsideredatechnologicalrevolutionandthestartofmy“artificialintelligence”In1936myreal,father，AlanTuring，wroteabookabouthowIcouldbemadetoworkasa“universalmachine”tosolveanydifficultmathematicalproblem.Fromthenon,Igrewrapidlybothinsizeandinbrainpower.Bythe1940sIhadgrownaslargeasaroom,andIwonderedifIwouldgrowanylarger.However，thisrealityalsoworriedmydesigners.Astimewentby,Iwasmadesmaller.FirstasaPC(personalcomputer)andthenasalaptop,Ihavebeenusedinofficesandhomessincethe1970s.,Thesechangesonlybecamepossibleasmymemoryimproved.Firstitwasstoredintubes，thenontransistorsandlateronverysmallchips.AsaresultItotallychangedmyshape.AsIhavegrownolderIhavealsogrownsmaller.Overtimemymemoryhasdevelopedsomuchthat，likeanelephant，IneverforgetanythingIhavebeentold!AndmymemorybecamesolargethatevenIcouldntbelieveit!ButIwasalwayssolonelystandingtherebymyself，untilintheearly1960stheygavemeafamilyconnectedbyanetwork.IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.,Sincethe1970smanynewapplicationshavebeenfoundforme.Ihavebecomeveryimportantincommunication，fi-nanceandtrade.Ihavealsobeenputintorobotsandusedtomakemobilephonesaswellashelpwithmedicaloperations.IhaveevenbeenputintospacerocketsandsenttoexploretheMoonandMars.Anyhow，mygoalistoprovidehumanswithalifeofhighquality.IamnowtrulyfilledwithhappinessthatIamadevotedfriendandhelperofthehumanrace！,我是谁？经过一段时间我已经被改变了很多。1642年我在法国诞生时是一台计算机器。尽管当时我还年轻，但是我能简化一些复杂的数学题