八年级英语下册《lesson 21》导学案 北师大版

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1、《Lesson21》【学习目标】1.学习一些与书籍发展史有关的词汇:press.appear.modern.eletronic2.运用所学知识介绍自己了解的书籍的发展情况【重难点预测】重点：phrase:byhand.Ittakes/took…todo.keepondoing.passon难点：介绍书籍的发展情况【学习流程】Ⅰ、预习检测根据汉语提示完成单词1.Thecomputer_______(出现)andchangedtheworld2.With_______(现代的)technology,iywasposs

2、ibletoprinkbooksquickly3.Itwasalsopossiblefor_______(普通的)peopletoreadbooks4.It’seasyforpeopletobuyand______(卖)anythingonline5.Anewkindofbookappearted,the________(电子的)book(e-book)II.自主探究我能多读课文,完成exercise1onpage55Ⅲ、合作交流精析句子1.Inancienttimes,therewerenobooks,andp

3、eoplepassedontheirknowledgebytellingstories在古代,由于没有书用,所以人们只能通过讲故事来传递他们的知识(1)passon意为___________,如Passonthebook把书传递下去(2)by+v-ing意为以…的方式如:TheylearnEnglishbyreadingEnglisheveryday跟踪训练:Letus____tothenextsubject策略与反思纠错与归纳A.passB.passbyC.passingD.passonYoustartthec

4、ar___turningthiskeyA.inB.byC.withD.for2.Ittookalongtimetowritejustonbook花了很长时间写了一本书Ittakes/tooksb.+时间todosth花费某人多长时间做某事跟踪训练:昨天花费了我3小时步行去公园It____methreehours____________totheparkyesterday拓展:(1)cost花费sth/doingsth.costsb.+钱数某物/做某事花某人…钱(2)spend花费,其过去式为_____sb.spe

5、ndtime/moneyonsthsb.spendtime/moneydoingsth某人化时间在某事上/做某事跟踪训练:Thebook___me20yuanA.costsB.costC.takesD.spendsMylistersister____100yuanbuyingtoysA.takesB.costsC.spendD.spendsⅣ、知识梳理英汉互译1.byhand2.passon43.printingpress4.继续做某事5.写下6.讲故事7.越来越快8.无论什么9.keeponreading10.

6、changepeople’sreadingrabitsⅤ、课堂检测根据首字母提示填空1.Iwaitedformyfriendforanhour,buthedidn’ta_______2.Withm______technology,wecanprintbooksquickly3.Informationtravelsfasterandf_______4.Nom_______whatyousay完成句子1.We_____________(传递)messagebye-mailsnow2.Inancienttime,peo

7、plemadeeverything____________(手工)3.Whendidthe_________________(印刷机)appear?4.Let’s__________________(继续读)thestory5.He_____________(写下)thestoryofaccident(事故)单选1.Wecan’t___toomuchtimechattingwithfriendsA.takeB.spendC.costD.use2.____accienttimes,peoplemadealiving

8、___huntingA.In;inB.At;inC.In;byD.In;withⅥ、拓展延伸句型转换1.Hespent20minutestellingthestory(改为同义句)__________him20minutes_____tellthestory2.Hecontinuedreadingthebookhalfanhour(改为同义句)He____________