必修2unit3 computers reading and language points.ppt

1、Unit3Computersreading1,Atoy?,Ahandbag?,Computers,Howmuchdoyouknowaboutcomputers?,keyboard,mouse,hostcomputer,screen,monitor,speaker,Thecomponents(组成部分)ofacomputer:,Ahugecomputer,APC,PDA,laptop,Thedevelopmentofcomputers,Q:Whatcanweusecomputerstodo?,Pre-reading,Wecanusethecomputerto.,listentomusic,wat

2、chmovies,searchforusefulinformation,communicatewithfriends,buythings,怎样学好英语,Reading,WhoAmI?,Q2.Whatdoeseachparagraphtellus?,Q1.Inthepassage,whatdoes“I”refersto？,acomputer,TipsAtopicsentencegivesthemainideaofaparagraph.Atopicsentenceisusuallythefirstorlastsentenceofaparagraph.,Paragraph1,Paragraph2,P

3、aragraph3,OvertimeIhavebeenchangedquitealot.,Thesechangesonlybecamepossibleasmymemoryimproved.,Sincethe1970smanynewapplicationshavebeenfoundforme.,Q3.Whatsthemainideaofthetext?Thechangesandtheapplicationsofthecomputer.,Readpara1andfinishtheexercise.,E1:Whatwasthecomputercalledindifferentstages?1.Itb

4、eganasa(n)_inFrancein1642.2.About200yearslateritwasbuiltasa(n)_byCharlesBabbage.3.In1936itwasmadetoworkasa(n)_.4.Astimewentby,thecomputerwasmadesmaller.Firstasaandthenasa_.,calculatingmachine,analyticalmachine,universalmachine,PC(personalcomputer),laptop,E2:Twoimportantcharacters:,CharlesBabbage,Ala

5、nTuring,analyticalmachine,realfatheruniversalmachine,Solvedifficultmathematicalproblems,Thinklogicallyandproduceananswerquickly,Simplifydifficultsums,Beusedinofficesandhomes,E3:Functionofeachmachine,Para2:technicalwords,Memory:,chip,transistor,tube,Theamountofspaceinacomputerforstoringinformation.内存

6、,network,Listentoparagraph2:Howdiditsmemoryimprove?,Thesechangesonlybecamepossibleasmymemoryimproved.First,itwasstoredin_,thenon_.Andlateronvery_.Intheearly1960s,Iwasgivenafamilyconnectedbya_.Iwasabletosharemyknowledgewithothersthroughthe_.,tubes,transistors,small,chips,network,World,Wide,Web,Whatar

7、ethenewapplications?,Paragraph3,Task3Retelling,Howdidthewriterorganizethetext?,Accordingtothetime,1960s,Retellthehistoryofcomputers,Name:computerBorn:(time)_(place)_Myrealfather:_Mysize:1._(inthepast)2._(modern)Myhistory:1.1642_machine2.1822_machine3.1936_machine4.1940s_5.1970s_and_Mymemory:_Myappli

8、cations:_;_;_;_;_;_;_.,1642,France,AlanTuring,large,smallerandsmaller,analytical,calculating,universal,laptop,PC,tubes,transistors,chips,communication,finance,robot,mobilephone,spacerocket,medicaloperation,trade,hugecomputer,Task4Summary-Whoam“I”,Homework,Computers_peopleallovertheworldtogether.,164

9、2,1822,Now,1936,1960s,1970s,Thecomputerbeganasa_,The_wasbuiltbyCharlesBabbage.,AlanTuringwroteabookabouthowcomputerscouldbemadetoworkasa_,Thefirstfamilyofcomputerswasconnectedtoeachother.,Computerswereusedin_,Thehistoryofthecomputer:,1940s,Thecomputerhadgrownaslargeas_,Timeline,(Whathappened?),analy

10、ticalmachine,calculatingmachine.,universalmachine.,aroom.,officesandhomes.,connect,Task3,Languagepoints,common,1.mostwidelyknown;ordinary:,Heisacommonsailor.,2.havenothing/little/something/alotincommon,Atfirst,Ithinkweonlyhadonethingincommon,butsuddenlyIfeltwehadalotincommon.,Theyhavenothingincommon

11、withoneanother.,Thetwobrothershadeverythingincommonintheirmanners,butthetwosistershavelittleincommon.,Incommonwith(like)manyeducatedpeopleheprefersclassicmusictojazz.,4.incommon:equallywithorbyall.,Heandhisbotherownthefirmincommon.,Incommonwithmanyotherclassmates,Ilikesports.,3.have.incommon(with),s

12、harewith,WejusthadnothingincommonwitheachotherandIcouldntcommunicatewithhisdullbusinessfriends.,5.incommonwith:=like,2.Ifollowedinstructionsfromcardswithholes.,follow:takeoraccept,IfollowedmyteachersadviceandpaidmoreattentiontomyspokenEnglish.,Youwillspendalotifyoualwaysfollowthefashion.,Weshouldfol

13、lowtheexampleofthestudentswhobehavethemselves.,Followtheroadsignswhiledriving.,CanyoufollowwhatIamsaying?,inthefollowingyear=inthenextyear=intheyearthatfollows,Ibeganonlyasacalculatingmachinein1642inFrance.ThenIn1822IwasbuiltwasanAnalyticalMachinebyCharlesBabbage.Ifollowedinstructionsfromcardswithho

14、les.Iknowthissoundsverysimple,butatthattimeitwasatechnologicalrevolution!MyrealfatherwasAlanTuring,whoin1936wroteabooktodescribehowcomputerscouldbemadetowork,andbuilta“universalmachine”tosolveanymathematicalproblem.,only,Analytical,technological,EarlierIwasnotverybig,butthenIbecamehuge!However,peopl

15、ethoughtIwassimple-mindeduntiltheydiscoveredIhadartificialintelligence.”Artificial!Idintknowwhattheyweretalkingabout.Anyway,letsgobacktomyhistory.ThenIwasthesizeofalargeroom!Astheyearshavegoneby,Ihavebeenmadesmallerandsmaller.,simple-minded,NoonecouldrecognizemeafterIgotmynewtransistorsinthe1960s.Th

16、ereweretimeswhenmysizewastotallychanged.IbecamesmallandthinbutIgotclevererandcleverer,quickerandquicker.AndmymemorybecamesolargethatIcouldntbelieveit!ButIwasalwayssolonelystandingtherebymyself,untilintheearly1960s,Theygavemeafamilyconnectedbyanetwork.Icouldshareinformationwithothersandwecouldtalktoe

17、achother.,inthe1960s,that,lonely,AtaboutthesametimewelearnedtotalktohumansusingBASIC.Iwasbroughtintopeopleshomesinthe1970s.Sincethen,myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformationandcommunicatewitheachotheraroundtheworldbytheInternet.Ilovebeingusedtoconnectpeoplewhoarentcloseenought

18、ospeaktoeachother.Ihavetrulybeenbuilttoservethehumanracesincemybirth.,lovebeingused,only,Onlywhenthewarwasover,washeabletogetback,Hewasabletogetbacktoworkonlywhenthewarwasover.,:aloneinkindorclass;sole.:withoutanyoneoranythingelse;alone:attheveryleast:,OnlyIcoulddothatexperimentinthatlab.Icouldonlyd

19、othatexperimentinthatlab.OnlyinthatlabcouldIdothatexperiment.,Ifyouwouldonlycomehome.Thestorywasonlytootrue.,Ionlyworkhere.,roomforonlyonepassenger,The_ofthesamplesonthemurderspotshowedsomevaluablecluestothepolice.2.Canyou_thefollowingsentences?3.Lastweekourcompanyboughtan_Machine.4.Thescientist_the

20、milkandfounditcontainedtoomuchwater.,analysis,Analytical,analyse,analyzed,analyzevt.分析,分解Thescientistanalyzedthemilkandfounditcontainedtoomuchwater.科学家分析了一下牛奶，发现里面含水分过多。analysisn.分析，分解(pl.analyses)analyzableadj.可被分析的,可以分解的,analytical,analysisanalyzer(analyser)analyze(analyse),technology,technique(n.

21、),1.Thiscompanyisingreatneedofmany_.,technologists,technologist,(person),(adj.),technical,2.Tobuildthismachine，youmusthave_ability.,technical,3.Doyouknowtheknowledgeofagricultural_.,technique,simple-minded:showingverylittleintelligence,Richardissmartbuthehasalotofsimple-mindedfriends.,absent-mindedo

22、pen-mindednarrow-mindedsingle-mindedstrong-mindedweak-mindednoble-minded,心不在焉的没有偏见的心胸狭窄的一心一意的意志坚强的低能的，愚蠢的思想高尚的,NoonecouldrecognizemeafterIgotmynewtransistorsinthe1960s.(orinthe1960s),在20世纪50年代,in/duringthe1950s/1950s,在1950年,in1950,在他40多岁时,inhisforties,Itsnotrarein_thatpeoplein_fiftiesaregoingtounive

23、rsityforfurthereducation.90s;theB.the90s;/C.90s;theirD.the90s;their,D,AndmymemorybecamesolargethatIcouldntbelieveit!,Theroomissolargethatitcanholdatleastfiftypeople.-Thisissuchalargeroomthatitcanholdatleastfiftypeople.-Thisissolargearoomthatitcanholdfiftypeople.,Theweatherissofinethatweallwanttogoout.,Itissuchfineweatherthatweal