When was it invented Selfcheck

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1、淄川实验中学初四英语教案No.授课内容Unit4Whenwasitinvented?Selfcheck课型new审阅备课日期Sep.上课日期Sep.备课人教学目标（包括知识、情感、能力目标）1.知识目标:1.Idon’tlikeeatingchocolate.Thetasteistoosweet.2.Momaddedsaltbutitstillwasn’tsaltyenough.3.Ipreferlemonstooranges.Ilikethesourtaste.4.Shelikescrispycookie

2、s.Theyarehard,dryandeasilybroken.2.能力目标:(1)Trainthestudents'readingskillonhowtoanswerthequestions.(2)Trainthestudents'writingskillbywritinganarticle.(3)Trainthestudents'speakingskill.3.情感目标:了解诸多发明的历史,从小立志长大后做一个有利于人类的发明家教学重点1.Toteachthestudentssomanynewword

3、sinasingleclass.2.Tohelpthestudentsunderstandthereadingpassage..教学难点Todirectthestudentstowritethearticle.教学过程教学内容设计二次备课Step1RevisionRevisethehistoryofteabyretellingthestory.Step2Fillingblanks(Selfcheck1)ReadthesentencesinPart1andfillintheblankwithacorrectw

4、ord.crispysweetsaltysour1.Idon’tlikeeatingchocolate.Thetasteistoosweet.2.Momaddedsaltbutitstillwasn’tsaltyenough.3.Ipreferlemonstooranges.Ilikethesourtaste.4.Shelikescrispycookies.Theyarehard,dryandeasilybroken.Step3Makesentences.Nowyouareaskedtomakeyourow

5、nsentenceswitheachofthefourwords.1.Thesnowiscrispy.Thecrackersaren’tcrispy.Theymusthavegotwet.2.Mycoffeeistoosweet—Iputtwospoonfulsofsugarinit.Doyoulikesweetdrinks?3.Seawaterisverysalty.Thissoupisverysalty.Ithinkyouhaveputtoomuchsaltinit.4.Theseorangesarea

6、ssouraslemons.Step4Writeaboutinventions(selfcheck2)Lookatthepicturesbelowandtellaboutwhatyousee.Useasmanyexamplesofpassivevoice(questionsandstatements)aspossible.invention,history,inventorof,historyof,whoinvented,inventionof,fascinatingfacts.Theabacus3000B

7、C-Theabacus,builtoutofwoodandbeads,usedtheconceptsofonesetofobjectsstandinginforobjectsinanotherset,butalsotheconceptofasingleobjectstandingforacollectionofobjects—positionalnotation.-Earlytables,namedabaci,formalizedcountingandintroducedtheconceptofpositi

8、onalnotation.-Earlymancountedbymeansofmatchingonesetofobjectswithanotherset(stonesandsheep).UmbrellaThebasicumbrellawasinventedoverfourthousandyearsago.Wehaveseenevidenceofumbrellasintheancientartandartifacts