高中英语-Book2 Unit 3 Computers教学课件设计

人教版高一英语必修二

Unit3Computers

Unit3ComputersReading1.Whoisthespeakerinthisstory?A.AcomputerB.Aperson2.Whatisthemainideaofthispassage?A.Computersmayreplacehumanbeings.B.Thedevelopmentandapplicationsofcomputers.I.Fast-reading1.Readthefirstparagraphandfinishthefollowingtwotasks.TaskⅠ

Answerthequestion:Whatisthetopicsentenceofthisparagraph?II.Careful-readingOvertimeIhavebeenchangedquitealot.TimeEvents1642Thecomputerbeganasa__________________About1822Thecomputerwasbuiltasan_________________From1936onThecomputergrewrapidlybothin______andin_________Bythe1940sThecomputerhadgrown________________Sincethe1970sThecomputerhasbeenusedin_______________calculatingmachine.aslargeasaroom.officesandhomes.analyticalmachine

TaskⅡFinishthechartsizebrainpower2.Readthesecondparagraphandfinishthefollowingtwotasks.TaskⅠAnswerthequestion:Whatisthetopicsentenceofthisparagraph?Thesechangesonlybecamepossibleasmymemoryimproved.

TaskⅡ

Choosethebestanswers.Accordingtothepassage,thecomputerhasgrownsmallermainlybecause______.A.itusesgoodmaterialsB.itwastoolargeinthepastC.itsmemoryhasimprovedalotD.thereislessroomintheearth2.Whathappenedtothecomputerinthe1960s?A.Itbecameaslargeasaroom.B.Itwasgivenafamilyconnectedbyanetwork.C.Itbegantobeusedintheoffices.D.Itbegantobeputintospacerockets.3.Readthethirdparagraphandfinishthefollowingtwotasks.TaskⅠAnswerthequestion:Whatisthetopicsentenceofthisparagraph?Sincethe1970smanynewapplicationshavebeenfoundforme.TaskⅡTrueorfalseComputerscanbeusedtomakemobilephonesnow.Sincethe1960s,thecomputerhasbeenusedtohelpwithmedicaloperations.Computerscansolvealltheproblemsofhumanbeings.TFF1970snotI_______(begin)asacalculatingmachinein1642.Withtime______(go)by,Ihavebeenmadeclevererand_______(small).Mymemoryhasbecome_____largethatIcan’tbelieveit.ButIcan’tforgetthetime______Iwassolonelystandingtherebymyself.Untilin____1960s,theygavemeafamilyconnectedbyanetwork.SoIwasabletosharemyknowledge____others.Sincethe1970s,manynewapplications______________(find)forme.Ihavebecomeveryimportant_____communication,financeandtrade.Anyhow,mygoalistoprovidehumanswithalife_____highquality.ⅢFurtherreadingbegangoingsmallersowhenthewithhavebeenfoundinofⅣDiscussionWhataretheadvantagesanddisadvantagesofusingcomputers?

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makenewfriendseasilyWecanusecomputersto...disadvantagesbeharmfultoourhealthgiveawayourpersonalinformationgivefalseorunhealthyinformationwastetimeA