Book2Unit3ComputerswarmingupBook2Unit3ComputersWordsaboutcomputersHistoryofdevelopmentofcomputersComparisonamongabacus,calculator,PCandPDASpeakingpracticeSummaryontheadvantagesanddisadvantagesofusingacomputerWordsaboutcomputersIamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.

DoyouknowwhoIam?abacusGuess:Part1wordsIamveryoldnow.IwasboIamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorIamverysmall.IcanItisamachine,whichyoucanusetotypeyourhomework,drawpictures,playgames,watchmovies,listentomusic,communicatewithyourfriends,gatherinformation…WhoamI?

Computer\PCItisamachine,whichyoucanitisakindofcomputerwhichcanbetakenconveniently(方便地)likeanotebook.AlaptopitisakindofcomputerwhiCPU(centralprocessingUnit)中央處理器harddisc硬盤chips主板displaycard顯卡CPU(centralprocessingUnit)monitor顯示器keyboard鍵盤

mouse鼠標monitor顯示器keyboardmousemodemScanner掃描儀printerSpeaker音箱modemScannerprinterSpeaker音箱CD/DVD/VCDCD/DVD-ROM光盤驅動器CD/DVD/VCDCD/DVD-ROM光盤驅動器ComponentsofacomputerScannerPrinterMonitorMouseSpeaker

內存RandomAccessMemory

重置電腦組件ComponentsofacomputerScanneWhatdotheyhaveincommon?共同點What’snext?abacuscalculatorHugecomputerdesktoplaptopPDA

RobotPart2HistoryWhatdotheyhaveincommon?共同DiscussionandcompetitionUsewords\phrasestoexpresstheadvantages(優點)anddisadvantages(缺點)ofabacus,calculator,PC,andPDA.(用單詞,詞組來表達abacus,calculator,PC,PDA的優點,缺點)discussion3’+writing5’Part3Comparison

DiscussionandcompetitionUseAbacusAdvantages:fast,traditional,convenient,simpleDisadvantages:toosimpleCalculatorAdvantages:accurate(準確的),convenient,convenienttocarry,moreuseful,hasmorefunctions,likecos,sin,log,etcDisadvantages:peoplewillrelyonittoomuchAbacusPCAdvantages:personal,popular,faster,intelligent,moreuseful\usages\functions,(surfingtheInternet,lookingforinformation,drawpictures…)Disadvantages:toobigtocarry,expensive,skillful(itrequirespeopleshouldknowhowtouseacomputer)PCPDAAdvantages:compact(小巧的),useful,portable(輕便的,方便攜帶的),convenienttocarryDisadvantages:thescreenistoosmall,itneedsbattery(電池),….losedata(數據)….PDASpeakingpractice

Ifyoudecidetodesign(設計)yourownhouse,whichonedoyouliketousetohelpyour?abacus,calculator,PC,PDA?Giveyourreasons?Part4SpeakingpracticeIfyoudeciSummaryDiscusstheadvantagesanddisadvantagesofusingacomputerwithyourpartner?Part5SummaryDiscusstheadvantageAdvantages:1.surftheImunicatewithothersonline4.makefriendsallovertheworld5.makefreecallsthroughQQ6.watchfilms,videos.7.drawpictures8.usePhotoshoptomakeyourphotosmorebeautifulAdvantages:1.surftheInternetdisadvantages:1…badinformation2…badforourhealth,games....badforourstudy5.…reducethetimeforrealfriendsandfamily.disadvantages:1…badinformatHomework1.Writeacompositionaboutadvantagesanddisadvantagesofusingacomputer.2.Previewthereadingpassage“whoamI”.

Homework1.WriteacompositionBook2Unit3ComputerswarmingupBook2Unit3ComputersWordsaboutcomputersHistoryofdevelopmentofcomputersComparisonamongabacus,calculator,PCandPDASpeakingpracticeSummaryontheadvantagesanddisadvantagesofusingacomputerWordsaboutcomputersIamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.

DoyouknowwhoIam?abacusGuess:Part1wordsIamveryoldnow.IwasboIamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorIamverysmall.IcanItisamachine,whichyoucanusetotypeyourhomework,drawpictures,playgames,watchmovies,listentomusic,communicatewithyourfriends,gatherinformation…WhoamI?

Computer\PCItisamachine,whichyoucanitisakindofcomputerwhichcanbetakenconveniently(方便地)likeanotebook.AlaptopitisakindofcomputerwhiCPU(centralprocessingUnit)中央處理器harddisc硬盤chips主板displaycard顯卡CPU(centralprocessingUnit)monitor顯示器keyboard鍵盤

mouse鼠標monitor顯示器keyboardmousemodemScanner掃描儀printerSpeaker音箱modemScannerprinterSpeaker音箱CD/DVD/VCDCD/DVD-ROM光盤驅動器CD/DVD/VCDCD/DVD-ROM光盤驅動器ComponentsofacomputerScannerPrinterMonitorMouseSpeaker

內存RandomAccessMemory

重置電腦組件ComponentsofacomputerScanneWhatdotheyhaveincommon?共同點What’snext?abacuscalculatorHugecomputerdesktoplaptopPDA

RobotPart2HistoryWhatdotheyhaveincommon?共同DiscussionandcompetitionUsewords\phrasestoexpresstheadvantages(優點)anddisadvantages(缺點)ofabacus,calculator,PC,andPDA.(用單詞,詞組來表達abacus,calculator,PC,PDA的優點,缺點)discussion3’+writing5’Part3Comparison

DiscussionandcompetitionUseAbacusAdvantages:fast,traditional,convenient,simpleDisadvantages:toosimpleCalculatorAdvantages:accurate(準確的),convenient,convenienttocarry,moreuseful,hasmorefunctions,likecos,sin,log,etcDisadvantages:peoplewillrelyonittoomuchAbacusPCAdvantages:personal,popular,faster,intelligent,moreuseful\usages\functions,(surfingtheInternet,lookingforinformation,drawpictures…)Disadvantages:toobigtocarry,expensive,skillful(itrequirespeopleshouldknowhowtouseacomputer)PCPDAAdvantages:compact(小巧的),useful,portable(輕便的,方便攜帶的),convenienttocarryDisadvantages:thescreenistoosmall,itneedsbattery(電池),….losedata(數據)….PDASpeakingpractice

Ifyoudecidetodesign(設計)yourownhouse,whichonedoyouliketousetohelpyour?abacus,calculator,PC,PDA?Giveyourreasons?Part4SpeakingpracticeIfyoudeciSummaryDiscusstheadvantagesanddisadvantagesofusingacomputerwithyourpartner?Part5SummaryDiscusstheadva