高中英语必修二unit3课件-

高中英语必修二unit3课件-Guess!Atoy?Ahandbag?ComputersGuess!Atoy?Ahandbag?ComputeIamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.

DoyouknowwhoIam?abacusGuessmore:Iamveryoldnow.IwasboIamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorIamverysmall.IcanIcanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseI’msmallenoughforyoutotakemewithyou.notebookcomputerDoyouknowwhoIam?IcanbeusedforcalculatAhugecomputerAPCthehistoryofthecomputerlaptop(手提电脑)PDA(掌上电脑)Caculator计算器abacusAhugecomputerAPCthehistoryWhoamI?WhoamI?Skimming:

Gooverthestorytofindoutwhothespeakeris.Writedown3sentencestosupportyouridea.Itisacomputer.●IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.●”MyrealfatherwasAlanTuring....”●IwasbuiltasanAnalyticalMachinebyCharlesBabbage.”Skimming:GooverthestorytTimelineThecomputerbeganasacalculatingmachine．1822AlanTuringwroteabooktodescribehowcomputerscouldbemadetowork．Computershadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes．

Computerswereusedinofficesandhomes.Scanning:TimelineThecomputerbeganasTrueorFalseAlanTuringbuiltanAnalyticalMachinetosolveanymathematicalproblems.Peoplebegantorealizethatthecomputergotclevererandquickerwithtimepassing.Thecomputerbegantoservethehumanracesinceitwasbroughtintopeople’shomes.Sincethe1970s,thecomputerwasusedbypeoplearoundtheworldthroughtheInternet.5.Thelargerthecomputeris,themorememoryithas.FTFTFauniversalmachineitsbirthIbecamesmallandthinbutIgotclevererandcleverer,quickerandquicker.AndmymemorybecamesolargethatIcouldn’tbelieveit!correctthewrongsentencesTrueorFalseAlanTuringbuilt1.

Choosethebestanswers1)What’sthemainideaofthetext?A.Thecomputerwantstofind“whoheis”.B.Thefunctionalchangeofthecomputer.C.Thecomputerbecomespopulararoundtheworld.D.Thehistoryofthecomputer.Comprehending:1.ChoosethebestanswersComp2)Whatcanyouinferfromthetext?A.Thecomputerhasartificialintelligence.B.Thecomputerchangesalotovertheyears.C.Thecomputerwasnotconnectedbyanetworkuntilintheearly1960s.D.Nowthecomputercanonlybeusedtodealwithinformation.2)WhatcanyouinferfromtheQ1:HowdidthecomputerworkasanAnalyticalMachine?

Thecomputerfollowedinstructionsfromcardswithholes.2.

QuestionsQ1:HowdidthecomputerworkQ2:Inhowmanywaysdowesaythecomputerchanged?Whatarethey?Size:

Intelligence:Speed:Function:People’opinion:smallerquickercleverercalculating----dealingwith…,communicatingwith…clever&usefulQ2:Inhowmanywaysdowesay1960sConsolidation:Retelling1960sConsolidation:Retelling1Amonitoris2Thescreenis3Akeyboardis4Amouseis5ACD-ROMis6Aharddiskis(a)thepartofacomputerthatstoresinformation.(b)thepartofthecomputerthatyoutypeon.(c)thepartofthecomputerthatlookslikeatelevision(d)somethingyouusetoclickonthings(files,etc.).(e)thepartofthemonitorthatyoulookat.(f)aseparatediskthatcontainslotsofinformation.Matchthewordswiththeirmeanings.1Amonitoris(a)thepartofInternet1.Whatcanthecomputerbeusedfor?Task2.DiscussionInternetTask2.DiscussionschoolworkgamesemailsmusicandfilmschatinformationphotosshoppingOurlifehaschanged!schoolworkOurlifehaschangepalmtopsmallerdesktopconvenientlaptopWhataretoday'ssmallercomputerslike?palmtopsmallerdesktopconve2.Whataboutinthefuture?virtualkeyboards

虚拟键盘Nose-topkeyboard-vest2.Whataboutinthefuture?virrobotWhataboutinthefuture?robotWhataboutinthefuture?高中英语必修二unit3课件-Supposeyouareareporter.NowyouareinterviewingMr./MissComputer.Samplequestions:Whatdoyouliketoeat?Whatareyourhobbies?Whatisyournewestfunction(功