冀教版八年级下Unit 4 The Internet Connects Us lesson 21 Books or Computers课件（18张ppt）

Unit4TheInternetConnectsUsLesson21:BooksorComputers?Warm-up1Presentation2LanguagePoints3Exercise4Warm-upFreetalkHowcanwegetknowledge?BytalkingwithothersBywatchingTVByreadingbooksByreadinge-books

byhand用手；手工keepon继续Inancienttimes,peoplewroteeachword_______.Towriteonebook,theyusually_______writingforalongtime.WordsandphrasesbyhandkeptonPresentationLearnsomenewwordsThisisa____________.With______technology,itwaspossibleto________knowledge.modernadj.现代的printingpress印刷机passon传递byhand用手；手工keepon继续

printingpressmodern

passonWordsandphrasesButnowanewkindofbooks_________:the________book(e-book).Itiseasierforpeopletobuyand_____online.Wordsandphrasesappearedelectronic

sellmordenadj.现代的printingpress印刷机passon传递appearv.出现electronicadj.电子的sellv.出售printingpress印刷机passon传递byhand用手；手工keepon继续

Readthepassageandanswer3questions.1.Howdidpeoplepassontheirknowledgewithoutbooksinancienttimes?2.Whatmadeitpossibletoprintbooksquickly?3.Whatkindofbooksquicklychangedpeople’sreadinghabits?BytellingstoriesTheprintingpress.

Theelectronicbooks(e-books).ReadPassage1,2and3againandfillintheblanks.Withpaper,peoplebeganto_____

_______theirstories.Peoplewroteeachword________.Ittooka____timetowriteonebook.__________couldn’ttravel___.InformationbyhandlongwritedownfarpaperWhentheprintingpress_________,itchangedtheworld.The________printingpresscanprintbooks________,andmakesitpossibleforthe_______persontohave______accesstoreadbooks.Printingpressappearedmodernquicklycommoneasy___________andtheInternetchangedtheworld.Theymadeitpossibleforanewkindofbook:the_______books.Traditionallybookscouldonlybe_______andsoldatastore,buttodayyoucanbuyand_______books______.InternetelectronicboughtsellonlineComputersReadthelessonandputthesentencesinthecorrectorder.Ittookalongtimetowritejustonebook.Itmadeitpossibleforcommonpeopletoreadbooks.Thee-bookappeared.Peoplehadnobooks,andtheysharedknowledgebytellingstories.Theprintingpressappeared.PeopledownloadbooksfromtheInternet.Withpaper,peoplebegantowritedownstories.3561427WorkingroupsDoyoulikereadingpaperbooksorelectronicbooks?Why?Talkwithyourmembersinagroup.1.Inancienttimes,therewerenobooks,andpeoplepassesontheirknowledgebytellingstories.在古代，没有书，人们通过通过讲故事传递知识。by是介词，后面可以加名词或动名词短语，意为“通过……方式（途径）”。如：IlearnEnglishbylisteningtotapes.我通过听磁带学英语。Languagepoints

2.Ittookalongtimetowritejustonebook.仅仅写一本书就要花费很长一段时间。句型Ittakessb.sometimetodosth.

意为“某人花费多长时间做某事”，it是形式主语，真正的主语是动词不定式“todosth.”；take随时态改变，本句用的是一般过去时态，所以用took。如：Ittookmetwohourstocleanmyhouseyesterday.我昨天用了两个小时打扫房子。I.根据所给汉语提示，完成下列句子。1.Acomputerisauseful_______(机器).2.Therearetwo________(印刷)pressesinourschool.3.What'sthemeaningofthesecond_________(段落)inthetext?4.________(哪一条)wayshallwego?5.Iboughtabookabout_______(现代的)historyyesterday.modernmachineprintingparagraphWhichExerciseII.用所给单词的适当形式填空。1.IthinktheInternetis______________(important)thantheprintingpress.2.Thenovel__________(write)byQiongYao.3.Wecanfindinformation______(quick)ontheInternet.4.Themachinecanmake__________(thousand)ofbooksaday.5.Ifyou______(forget)thetelephonenumber,youcouldlookitupinthebook.forgotmoreimportantwaswrittenquicklythousandsIII.连词成句。1.hand,the,by,model,was,plane,made__________________________________.2.get,how,you,information,did,the__________________________________?3.the,answer,English,questions,in,please__________________________________.4.the,Internet,people,lets,quickly,information,search,for_______________________________________.5.much,sound,travels,than,faster,light__________________________________.LighttravelsmuchfasterthansoundThemodelplanewasmadebyhandHowdidyougettheinformationPleaseanswerthequestionsinEnglishTh