高中英語(yǔ)必修二：unit3-Warming-up-and-Reading-課件

ComputersWarmingupandreadingUnit3LookatthefollowingpicturesandsaytheirEnglishnames.abacuscalculatorhugecomputerPC(personalcomputer)laptopPDA(personaldigitalassistant)

Whatdoyouthinkthefuturecomputerdevelopmentwillbe?robotIthinkthat…Inmyopinion…Ibelievethat…What’syourreason?Whydoyouthinkso?1.Theycanbeusedforcalculating.2.Theycandealwithmathsproblems.3.Theyareourfriends.4.Theyareusefulandhelpful.Whatdotheyhaveincommon?keyboardmousemonitorscreenspeaker

hostcomputerWhatEnglishwordsdoyouknowaboutacomputer?Whatcancomputersbeusedtodoindailylife?

DiscussionHowdoyouusecomputersandtheInternet?1.Helptodohomework2.Playcomputergames3.Sende-mails4.Listentomusic5.Seemovies6.Chat7.Searchforinformation8.Doshopping9.LearncomputerskillsYesNoIoftenuseacomputerto…Isometimesuseitto…andIneveruseitto…orDebateIscomputersgoodorbadforhumanbeings?Forhavegreatpower;makeourlivesmorecolorfulandmoreconvenient;…Againstmakepeoplelazy;unhealthyinformation;pollutetheenvironment;…Readandanswerthequestions.1.Whoisthespeakerinthisstory?2.Writedownthreesentencesfromthestorytosupportyouridea.1.Whoisthespeakerinthisstory?

Acomputer.2.Writedownthreesentencesfromthestorytosupportyouridea.1)IwasbuiltasanAnalyticalmachinebyCharlesBabbage.2)Myrealfather,AlanTuring,…3)Iwasalwayslonelystandingtherebymyself,untilinearly1960stheygavemeafamilyconnectedbyanetwork.Listenagainandanswerthequestions.1.Wherewasthespeakerbornin1642?

InFrance.2.Whathappenedtothespeakerafternearlytwohundredyears?

HewasbuiltasanAnalyticalMachinebyBabbage.3.Whatwasthespeakercalledin1936?

Auniversalmachine.4.Whathappenedtothespeakerinthe1970s?

Hewasusedinofficesandhomes.Findthewordorexpressionforeachofthefollowingmeaningsfromthetext.completechangeinwaysofthinking,working,etcrevolutionconnectedcomputersystemnetworktomakethingseasiertofindtheanswerusingnumbersasaresultsimplifycalculateso;thereforecanbemovedeasilyfromplacetoplacemobiletoworkouttheanswertoaproblemsolveone’saimorpurposegoaltotravelaroundanareatofindoutaboutitexplorecompletelytotallyanywayanyhowfinanceactivityofmanagingmoneyIn1642Ibeganasacalculatingmachineandcouldsolveanymathematicalproblem.MyrealfatherwasCharlesBabbage,whowroteabookandbuildmein1936.AfterIgotmynewtransistorsinthe1960s,Ibecamesmallerbutclevererandquicker.Iwasbroughtintopeople’shomesinthe1970s.SincemybirthIhavebeenbuilttotaketheplaceofhumanrace.FFTTFCheckthesentencesaretrueorfalse.16421822TheanalyticalmachinewasmadebyCharlesBabbage.1936Thecomputerbeganasacalculatingmachine．Thecomputergrewrapidlybothinsizeandinbrainpower.Readthetextcarefullyandfillinthetables.1940s

Thefirstfamilyofcomputerswasconnectedtoeachother.1970snowComputershadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.Develop-mentEarlydaysNameFunction

PoorStrongA_________machineSimplifydifficultsumsAn________machineThinklogicallyandproduceananswerquicklyA_________machineSolvedifficult______________________calculatinganalytical

universal

mathematicalproblemsDevelop-mentNetworktimes_________storedinTubesLargeSmall____________Smallchips________________Narrow

WideFinance________RobotsMobilephones___________SpacerocketsMedicaloperations

MemoryTransistorsApplicationsCommunicationTradeParagraph1Paragraph2Paragraph3TopicsentenceOvertimeIhavebeenchangedquitealot.ThesechangesonlybecamepossibleasmymemoryimprovedSincethe1970smanynewapplicationshavebeenfoundforme.Completethechartbelow.SupportingdetailsCalculatingmachineAnalyticalmachineUniversalmachinePClaptopTubesTransistorsChipsNetworkWorldwidewebCommunicationsFinanceTradeRobotsMobilephonesMedicaloperationsSpacerocketsProvidingalifeofhighqualityParagraph1Paragraph2Paragraph3DiscussionIsitveryimportanttolearncomputerskillsforus?Whyorwhynot?Usethefollowingexpressioninyourdiscussion.Ithinkthat…Inmyopinion…Ibelievethat…What’syourreason?Whydoyouthinkso?Retellthetextaccordingtothefollowingcluesandthe