外研版九年级上册module4Unit2.ppt

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1、Unit2Bookscouldbeproducedmorequicklyandcheaply.TalkinpairsWhat’stheadvantagesofbooksandcomputers?Canbooksbereplacedbycomputers?Readandgetthemainideasoftheparagraphs.c.LifeonpaperandinprintThe1stparagraph:The2ndparagraph:a.TheworldbeforebooksThe3rdparagraph:The4thparagraph:The5thparagr

2、aph:b.Theinventionofprintingd.Technologyandbookse.Canbooksbereplacedbycomputers?Makenotestocompletethetimeline.2,000yearsago11thcenturytodayInthefuturePaperwasfirstcreated.Paperwasmadeofsilk...Booksweremadebyhand.FewpeoplelearnedtoreadPrintingwasdevelopedgreatly.Bookswereproducedquick

3、ly.Morepeoplelearnedtoread.Knowledgeandideasspreadquickly.Informationcanbereceivedonline.canbedownloaded.canbekeptonCD-BOMsreplaced?AnswerthequestionsWhywerebooksexpensiveandrarebeforetheinventionofprinting?2.Whydidideasspreadmorequicklywhenbooksbecamecheaper?Becausebookscouldonlybepr

4、oducedoneatatimebyhand.Becausemorepeoplelearnedtoreadandboughtbooks.3.Whatcanweusetogetinformation?Books,computers,etc.Usethewordsinthebox:create,develop,hold,keep,produce,receive,spread1.Whenwaspaperfirstcreated?Whendoyouthinkbookswerefirstcreated?Paperwasfirstcreatedabout2,000yearsa

5、go.Bookswerefirstcreatedsoonafterpaper.Byhand.Paperwasheldagainstwoodblocks.2.Werebooksproducedbyhandorbymachineatfirst?3.Whatwasthepaperheldagainst?4.Whenwasprintingdeveloped?5.WhatcanbekeptonCD-ROMs?6.Whatcanbereceivedonline?Atthebeginningofthe11thcentury.Information.Information.7.H

6、owwereideasspreadinthepast?Howareideasspreadtoday?Inthepast,ideaswerespreadbybooks,andmouthtomouth.TodayideasarespreadbytheInternet,TV,books,etc.返回目录Languagepoints1.looksthrough浏览，温习e.g.Helookedthroughmanybooksinordertofindthecorrectanswer.为了找到正确答案,他查阅了许多书籍。2.with–without带有……/没有……e.g.

7、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。3.bemadeof----bemadefrom---bemadeupof---bemadein------bemadeby—bemadeinto---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)1)Lookatthecamera.Whereisit_______?Japan.2

8、)Thet