Lesson 21 Books or Computers？

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1、Lesson21BooksorComputers？FourgreatinventionsofChinacompassPrintingpressFourgreatinventionsofChinagunpowderpaperNewwordsPress(n.)印刷业；出版业appear(v.)出现；呈现；到来appeared(过去式；过去分词)appearance(n)modern(adj.)现代的electronic(adj.)电子的sell(v.)卖；出售sold(过去式；过去分词)Newphrasespasson传递；前进e.g.She

2、wouldpassthemessageontoyou.byhand用手；手工e.g.Wehadtowashourclothesbyhand.keepon继续e.g.Imustkeepontrying.printingpress印刷机ThinkaboutitDoyoulikereadingbooks?Haveyoueverreade-books?Whichonedoyoulikebest?Listeningandfillintheblanks1.Ifwejust_______abookbyhand,itwilltakealongtime.wr

3、ite2.Withmodern______,itwaspossibletoprintbooksquickly.technology3.E-bookschangedpeople’sreading______.habitsReadingandanswerquestions1.Howdidpeoplewritebooksinancienttimes?Thewrotebooksbyhand.2.Whatmadeitpossibletoprintbooksquickly?Theprintingpress.3.Whatkindofbooksquickl

4、ychangedpeople’sreadinghabits?E-books.ThenfinishLet’sdoit2.Languagepoints1.Ittakessb.+时间/金钱todosth.“做某事花费某人多少时间或金钱”e.g.Ittakesme1000yuantobuythisbook.有关花费的其他说法：sb.spend.+时间/金钱onsth./indoingsth.“某人花时间或金钱做某事”e.g.Ispend1000yuanonbooks/buyingthisbook.sb.pay+金钱+forsth.“某人花费多少钱做

5、某事”e.g.Ipaid1000yuanforthisbook.sth.costsb.+金钱“某物花费某人多少金钱”e.g.Thisbookcostsme1000yuan.Languagepoints2.thousandsof+可数名词复数“成千上万;数以千计”e.g.TherearethousandsofvisitorscometoChinaeveryyear.3.keepondoingsth.“继续/持续做某事”e.g.Shekeeponsmoking.keep的其他用法:keep+adj.“保持…状态”keepsth.+adj.“保持

6、某物某种状态”keepsb.awayfromdoingsth.“阻止某人做某事”Practice11.在我们的工厂有成千上万的工人。Thereare___________workersinourfactory.2.我的祖母已经手工制作了很多篮子。thousandsofMygrandmahasalreadymademanybaskets______________.byhand3.一直往前走到教堂。______________untilyougettothechurch.keeponwalking4.我们用冰箱来保持食物新鲜。Weusefri

7、dgeto______________.keepfoodfresh5.这台笔记本电脑花了我5000元。(至少说出两中不同的表示方法)Practice2Workingroups:1.Readthepassagewithyourgroupsthenfinishlet’sdoit3.2.Makeashortdialoguetotalkaboutreadingpaperbooksorelectronicbookswhichonedoyoulikebest?Why?SummaryWords:Press,appear,modern,electronic

8、,sellPhrases:passon,byhand,keepon,Languagepoints:keepondoingthousandsofIttakessb.+时间/金钱to