外研版英语九上M4Unit2课件.ppt

Howlonghasitbeenused?Itsusedformorethan50years.,Whoinventedit?ItsinventedbyAmericans.,Whenwasitinvented?Itwasinventedin1946.,Whatcanitbeusedfor?Itcanbeusedfor,Freetalk,WhatcanyoudoonInternet?,shopping,information,chatwithfriends,listentothemusic,Canbooksbereplacedbycomputers?,Why?,外研初中三年级上册,Module4GreatinventionsUnit2Bookscouldbeproducedmorequicklyandcheaply.,Newwords,produceinventionlookthroughcreatecottonwoodatatimebyhand,生产发明浏览创造棉花木材一次用手工(制造),inkblockatthebeginningofknowledgespreadintroductionratherthanCD-ROMoneday,墨水板子；街区在的开始知识散播，传播传入；介绍而不是只读光盘，只读光盘存储器某天,Readthepassageandmatchthemainideaswiththeparagraphs.,c.Lifeonpaperandinprinta.Theworldbeforebooksb.Theinventionofprintingd.Technologyandbookse.Canbooksbereplacedbycomputers?,Para1,Para2,Para3,Para4,Para5,Readthepassageagain.Makenotestocompletethetimeline.,Paperfirstcreated,Printingdeveloped,InformationdownloadedfromtheInternet,Booksmaybereplacedbycomputers,Readthepassageagainandanswerthequestions.,1.Whywerebooksexpensiveandrarebeforetheinventionofprinting?,Becausetheywerewrittenbyhand.,Becausemorepeoplelearnedtoreadandboughtbooks.,2.Whydidideasspreadmorequicklywhenbooksbecamecheaper?,Answerthequestions.Usethewordsintheboxtohelpyou.,createdevelopholdkeepproducereceivespread,1.Whenwaspaperfirstcreated?Whendoyouthinkwerefirstcreated?,Paperwasfirstcreatedabout2,000yearsago.Bookswerefirstcreatedsoonafterpaper.,2.Werebooksproducedbyhandorbymachineatfirst?,Byhand.,3.Whatwasthepaperheldagainst?4.Whenwasprintingdeveloped?,Paperwasheldagainstwoodenblocks.,Atthebeginningofthe11thcentury.,5.WhatcanbekeptonCD-ROMs?6.Whatcanbereceivedonline?,Information.,Information.,Readandgetthemainideasoftheparagraphs,Everymorningmyfatherbuysanewspaperonhiswaytowork.EverydayIopenmybooksinclassandstartmylessons.Everyeveningmymotherlooksthroughmagazinesathome.AndEverynight,IlookattheposterswithphotosofDavidBeckhamandYaoMingonmybedroomwallbeforeIgotosleep.Canweimaginelifewithoutpaperorprint?,c.Lifeonpaperandinprint,Readandgetthemainideasoftheparagraphs,Paperwasfirstcreatedabout2,000yearsago,andhasbeenmadeofsilk,cotton,bamboo,andsincehe19thcentury,ofwood.Peoplelearnedtowritewordsonpapertomakeabook.Butinthosedays,bookscouldonlybeproducedoneatatimebyhand.Asaresult,theywereexpensiveandrare.Andbecausetherewerentmanybooks,fewpeoplelearnedtoread.,a.Theworldbeforebooks,Readandgetthemainideasoftheparagraphs,ThenprintingwasinventedinChina.Thefirstprintedbooksweremadebyputtinginkagainstawoodenblockandholdingthepaperagainstit.Whenprintingwasdevelopedgreatlyatthebeginningofthe11thcentury,bookscouldbeproducedmorequicklyandcheaply.Asaresult,morepeoplelearnedtoread.Afterthat,knowledgeandideasspreadquickly,inawaythatcanbecomparedwiththeintroductionoftheInternetinthe20thcentury.,b.Theinventionofprinting,Readandgetthemainideasoftheparagraphs,Butwillbooksbeneededinthefuture?Todayinformationcanbereceivedonline,downloadedfromtheInternetratherthanfoundinbooks,andinformationcanbekeptonCD-ROMsormachinessuchasMP3players.Thesemachinesaresmallerandlighterthanbookssothattheycanbecarriedveryeasily.,d.Technologyandbooks,Readandgetthemainideasoftheparagraphs,Computersarealreadyusedinclassrooms,andnewspapersandmagazinescanalreadybereadonline.Sowillbooksbereplacedbycomputersoneday?No,IdontthinktheYaoMingposteronmybedroomwallwilleverbereplacedbycomputertwometershigh!,e.Canbooksbereplacedbycomputers?,LanguagePoints,5.putagainst将放进/刻进holdagainst将贴到,6.atthebeginningof在初/开始时afterthat然后,之后inaway以方式,pare.with.与.相比,与.相媲美YoucantcomparehimwithTom,theyredifferent.ascomparedwith与比较Hesreallydonebetterascomparedwithlastterm.,LanguagePoints,9.ratherthan胜过,而不愿Eg.HewouldchooseSundayratherthanSaturday.Iwouldliketogowithyouratherthanstayathome.prefertodoratherthando情愿而不.,bereplacedby被.所替代bereadonline在网上阅读,LanguagePoints,1.looksthrough浏览，温习Eg.Helookedthroughmanybooksinordertofindthecorrectanswer.为了找到正确答案,他查阅了许多书籍.,2.withwithout带有/没有eg.Hefoundahousewithmanytreesaround.他找到了一所周围有许多树的房子.Hewenttoschoolwithoutbreakfasttoday.他今天没有吃早饭就去上学了.,LanguagePoints,3.bemadeof-bemadefrom-bemadeupof-bemadein-bemadebybemadeinto-,由材料制成(看得出材料),由材料制成(看不出材料),由组成(部分或成员),出产于(某地),由制成(生产者),制成.(产品),Ex.1.Lookatthecamera,Whereisit_?Japan.2.Thetableis_wood,whilepaperis_wood.3.Ourclassis_twentyboysandtwentythreegirls.4.Themetalcanbe_aknife.5.Thiskindofcaris_manyworkersinthefactory.,madein,madeof,madefrom,madeupof,madeby,madeinto,LanguagePoints,4.writewordson-makeabook-inthosedays-atatime-byhand-asaresult-,在上写字做成书在过去一次,每次