Module 2 Unit 4 Computers.Reading课件（含音频+视频）.pptx

Reading2Computersvshumans4Computers

Revision:Canyounamethedifferentpartsofacomputer?monitorscreenkeyboarddrivemainunitspeakersmouseCD-ROM/DVD-ROMflashdiscABCDEFGHIRevision

desktoppalmtoplaptop123Andthese?

BeforeyoureadReadthetitleofthepassage.Whatkindoffactsdoyouthinkthepassagewillprobablytellus?

SIZES:Howbigarecomputers?ThefirstcomputersBeforeyouread

Thefirstcomputers

Butnow,thesizeofaTVsetthesizeofabigbookthesizeofabarofchocolatesmallenoughto…

TinycomputersinsideMaybetheyaresotinythatweareunawareofthem.

WhileyoureadThefirstcomputerswerebuiltinthe1940s.

Theywerebiggerthancars!Sincethencomputershavebecomesmallerandsmaller.Desktopcomputersarethesizeoftelevisions.Laptopsarethesizeofbigbooks.Nowwehavepalmtopcomputers.Theyaresmallenoughtoputinyourpocketlikeabarofchocolate.Otherkindsofcomputersaresotinythatyoumaybeunawareofthem.Thereis

probablyoneinsideyourTV,telephone,orwashing

machine.Soyouprobablydependoncomputersmore

thanyourealize.

ComputersSizesFirstcomputersDesktopsLaptopsPalmtopsOtherkindsPairWork:Readthefirstpartofthepassageandcompletethetable.biggerthancarsthesizeoftelevisionsthesizeofbigbookssmallenoughtoputinyourpocketlikeabarofchocolatesotinythatyoumaybeunawareofthem

1.Whenwerethefirstcomputersbuilt?Theywerebuiltinthe1940s.2.Howbigwerethey?Theywerebiggerthancars.3.Computersarebecomingsmallerandsmaller,aren’tthey?Yes,theyare.4.Wherecanwefindtinycomputers?WecanfindtheminourTVs,telephonesorwashingmachines.

5.Whyareweunawareofthem?Becausetheyaresotiny./Theyaresotinythatweareunawareofthem.6.Arecomputersimportantinourlife?Yes,theyare.Wedependonthemverymuch,maybemorethanwerealize.

Computersareimportantinourlife,butWhatc