Unit 4 The Internet Connects Us Lesson 21 Books or Computers 课件2

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1、Unit4theInternetConnectsUsLesson21BooksorComputers?Leadin:DoyouknowtheFourGreatOldChineseInventions?(中国古代四大发明)Ifyouknow,pleasetelluswhattheyare.compassgunpowderprintingpaper毕昇蔡伦Findout:Compass,gunpowder,printingandpaperaretheFourGreatInventionsinAncientChin

2、a.Compasscanmakeaboatgoinitscorrectdirection.Gunpowdercanbeuesdnotonlyingun(枪)butasloinfirework(烟火).BecauseofBiSheng'swayofprinting,wecanhavemoreandmorebookstoread.WiththehelpofCaiLun,wecanusepapertowritewhatwethinkandwhatweseeinthewonderfulworld.Let'sfeelp

3、roudofCHINESE!Self---learning:Readthelessonandputthesesentencesintothecorrectorder.Task1:Fillinthenewwords.Task2Keyphrases1.passon...by...2.theprintingpress3.changeone'sreadinghabbit4.keepon(doing)sth.5.downloadsth.fromtheInternet从网上下载......反义:uploadsth.tot

4、heInternet将......上传到网上6.havemanywaystodosth.7.nomatterwhat/how/when...8.anewkindofbook9.ane-reader10.sellsth.online11.printbooks12.byhandTask3Keysentences1.Ittookalongtimetowriteabook.Ittakessb.sometimetodosth.=sb.spendsometimeonsth./doingsth.=sb.needsometi

5、metodosth.eg.Ittakesme30minutestowalktoschooleveryday.2.Themodernprintingpressingmakesitpossibletoprintbooksquickly.sth./sb.make+it+adj.+动词不定时：某人或某物使干某事变得......eg.E-bookscanmakeiteasierandfasterforcommonpeopletoreadmorebooks.3.Withe-books,Informationtravels

6、fasterandfarther.travelfasterandfarther:传播（旅行）得更快更远eg.Aplanecantravel/gofasterandfartherthanabus.4.Nomatterwhatyouhave,keeponreading!Nomatter+what/how/when...+主句：无论什么/怎样/何时，......eg.(1)Nomatterwhereyougo,Iwillgowithyou!(2)Nomatterhowyoudoit,Iwillagreewithyo

7、u!keepondoingsth.继续干某事eg.Keeponreading,you'llremember!Task4Languagepoints1.Peoplepassedontheirknowledgebytellingstories.人们通过讲故事来传播知识。passon传递；前进；去世Whatsortofvaluesdoyouwanttopasson?你想把怎样的价值观传递给下一代？Hepassedonattheageof72.他72岁时去世。Manyastudentfailstopassonthee

8、xamination.许多学生考试不及格。2.Theywroteeachwordbyhand.他们用手来写每个单词。byhand用手；手工Hemovedthehugestonebyhand.他用手移动了那块大石头。Wearrangedleadlettersbyhandbeforeanewspaperwasprinted.在报纸印刷以前，过去是用手工排铅字的。3.Then,theprintingpre