九年级英语外研社上M4U2Bookscouldbeproducedmorequicklyandcheaply.ppt

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1、Unit2.Bookscouldbeproducedmorequicklyandcheaply.Module4Greatinventions1.80元Activity1.Workingroups.Readthetitleofthepassage.Discusstheadvantagesandthedisadvantagesofbothbooksandcomputers.Makealist.AdvantagesDisadvantages.1.getdustonshelves2.takeupspaceathome3.canbeexpen-sive4.Usetrees,son

2、otenvironmentallyBooks2.oftencheap;1.easytogetanduse3.betterthanwatch-ingthecomputer’sscreen;AdvantagesDisadvantages.1.keeplotsofinformation2.Many”books”arefree3.Easytofindlotsof“books”1.Expensive2.Needtoknowhowtouseitcorrectly3.Useelectricity4.Youcanloseeverythingifit“crashes”5.Notpleas

3、anttoreadonscreen,needtoprintout4..Watchmovies,listentomusic,playgames…;5..Hugeamountsofdatacouldbeprocessed;6..Saveimportantinformation;7..Workforaverylongtime.ComputersActivity2.Readthepassageandmatchthemainideaswiththeparagraphs.aTheworldbeforebooksbTheinventionofprintingcLifeonpapera

4、ndinprintdTechnologyandbookseCanbooksbereplacedbycomputers?Canbooksbereplacedbycomputers?bookscomputersbuyanewspaperEverymorningmyfatherbuysanewspaperonhiswaytowork.looksthrough(1)magazinesEveryeveningmymotherlooksthroughmagazinesathome.openmybooksEverydayIopenmybooksinclassandstartmyles

5、sons.Everynight,IlookattheposterswithphotosofDavidBeckhamandYaoMingonmybedroomwall.lookattheposterswithphotosofDavidBeckhamandYaoMing.Everymorningmyfatherbuysanewspaperonhiswaytowork.EverydayIopenmybooksinclassandstartmylessons.Everyeveningmymotherlooksthroughmagazinesathome.Andeverynigh

6、t,IlookattheposterswithphotosofDavidBeckhamandYaoMingonmybedroomwallbeforeIgotosleep.Canweimaginelifewithoutpaperorprint?Readthefirstpassageandanswerthequestions.P1c.LifeonpaperandinprintWhichdoesthepassagematchwith,a,b,c,dore?create(2)paperPaperwasfirstcreatedabout2,000yearsago.Paperhas

7、beenmadefrom(4)silk,cottonandbamboo.cotton(3)silkbamboopaperSince19thcentury,paperhasbeenmadefromwood.wood(5)paperPeoplelearnedtowritewordsonpapertomakeabook.Butinthosedays,bookscouldonlybeproducedoneatatimebyhand.Asaresult,theywereexpensiveandrare.produce(6)booksoneatati