人教版高一英语必修二unicomuersreading.ppt

Unit 3reading11.Enablestudentstounderstandthewholepassage.2.Improvestudentsabilityofgatheringinformation.3.letstudentsknowsomebasicinformationaboutcomputersTeachingaims2Pre-reading:31.Imamachinethathasascreenwithmovingpicturesandsounds.2.Withmeyoucanwatchdifferentprogramjustathome.WhoamI?TVset41.Imalsoamachine.ButImsmall,soyoucanputmeinyourpocket.2.Therearetennumbersonme.3.Andyoucanusemetotalktootherseveninafar-awayplace.WhoamI?Mobilephone51.ThereisnodoubtthatImalsoamachine.2.Therearesomenumbersandlettersonme.3.Peopleoftenusemetoplaygames,andteachersoftenusemetogivelessons.WhoamI?computer6ReadingWHOAMI?71.Whoisthespeakerinthisstory?2.Whatsthemainideaofthispassage?A.Thedevelopmentofcomputers.B.Thedevelopmentanduseofcomputers.C.Amachinewhichissimple-minded.D.Computersmayreplacehumanbeings.3.Thetextiswrittenintheorderof.A.timeB.spaceC.logicD.alltheaboveAcomputer.While-reading(1):8timeline1642:1822:1936:1940s:1960s:1970s:Thecomputerbeganasacalculatingmachine.The Analytical Machine was built by Charles Babbage.Thecomputergrewrapidlybothinsizeandinbrainpower.Computerhadgrownaslargeasaroom.Computerswereusedinofficesandhomes.Thefirstfamilyofcomputerswasconnectedbyanetwork.Manynewapplicationshavebeenfoundforcomputers.Now:Computersconnectpeopleallovertheworldtogether.While-reading(2):(Universalmachine)91.Whycouldyou“think”logicallyandproduceananswerquickerthananyperson?2.Itotallychangedmyshape,because.3.Manynewapplicationshavebeenfoundforme,suchas.4.(translation)Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold.While-reading(3):102024/4/18 周四111.Why could you“think”logically and produce an answer quicker than any person?Because I was programmed by an operator who used cards with holes.While-reading(3):12 2.I totally changed my shape,because my memory was first stored in tubes,then on transistors and later on verysmall chips.I totally changed my shape！While-reading(3):133.Many new applications have been found for me,such ascommunication/finance/trade/robots/mobile phones/medicaloperations/space rocketsCareful-reading:144.(translation)Over time my memory has developed so much that,like an elephant,I never forget anything I have been told.随着时间的推移，我的记忆力发展的如此之快，就像一头大象，我从来不会忘记告诉我的任何事情。While-reading(3):15Oneofyouboughtacomputeryesterday.Talkabouttheadvantagesanddisadvantagesaboutcomputers.Make a dialogue Post-reading:pair-work16AdvantageslistentothemusicseefilmswatchnewscommunicatewithfriendsbuythingsonlineDisadvantagesplaycomputergamestoomuchchat（聊天）ontheInternettoomuchlittletimetostudy17Homework 1.Writing(about 80-100 words)The Use of Computers in Our Daily Life2.Preview language points of this text and finish the exercises on P153-155（学案）18http:/www.99dyw.co/九九电影网http:/www.99dyw.tv/九九电影网http:/九九电影网天堂网天堂网天堂网天堂网天堂网天堂网天堂网天堂网天堂网天堂网天堂网天堂网2014www.avttt2015.info天堂网2014www.avttv2017.info天堂网2014www.avttv2017.org天堂网天堂网天堂网2014www.avttv2018.org天堂网天堂网天堂网天堂网2014http:/http:/http:/http:/http:/http:/http:/http:/ 192024/4/18 周四20