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Unit4AmazingScienceTopic1Whenwasitinvented?SectionCⅠ.Materialanalysis本课是九年级第四单元第一话题的第三课时。主活动是1a。1a通过介绍发明是什么来继续学习一般过去时的被动语态。学生通过完成1a的任务型阅读，知道发明创造并非遥不可及。1b让学生学习归纳中心句。1c把发明创造的步骤进行整合，让学生更加清楚怎样去发明创造。2是个开放性的讨论，让学生在讨论的过程中知道发明无论大小都对我们的生活产生了巨大的影响。3倡导学生自己去发明创造，并通过介绍自己的发明来巩固英语知识。学生学习了本课之后，对发明创造不再感到神秘莫测，从而萌发自己动手的愿望，有利于激发学生的创造精神。3这个写作任务，需要学生独立思考，并运用所介绍的写作小窍门。学生在短时间内难以很好地完成，故留作家庭作业。Ⅱ.Teachingaims1.Knowledgeaims：掌握本课的重点词汇和短语，继续学习一般过去时的被动语态。2.Skillaims:通过1b学习归纳中心句。通过3学习写作介绍性的小短文。3.Emotionalaims:(optional)
激发学生大胆思考、勇于创造的精神。4.Culturalawareness:(optional)Ⅲ.Thekeypointsanddifficultpoints1.Keypoints:Wordsandphrases:invention,crayon,thought,silly,balloon,gun,robot,keyboard,comeabout,laughat,cometoSentences:That’swhynowwehaveplanes.Thisisthetimetobrainstormforideasandtoevaluatethem.Grammar:was/were+pp2.Difficultpoints：Inventionscomeaboutinmanyways.Noneofthesethingswasplantedinfields.Rememberthatnoideaistoosilly.Ⅳ.Learningstrategies能够通过1a的Pre-reading来预测文章的内容。能够概括文段大意，提炼主题句。学习3来拟定写作提纲。Ⅴ.Teachingaids气球、蜡笔等实物/枪、机器人等图片/录音机/小黑板/PPT等。
Ⅵ.TeachingproceduresStage(timeperiod)InteractionPatternsTeacheractivityStudentactivityRemarks1Gettingstudentsreadyforlearning(2mins)IndividualworkLettheSsspeakouttheinventionstheycollected.T:Let’schecktheinventionsyouhavecollected.Whowillbethefirstone?Speakouttheinventionstheycollected.S1:computerS2:InternetS3:X-rayS4:carS5:robotS6:…老师把学生列举的发明一一板书出来备用。2Lead-in(10mins)ClassactivityStep1:Presentrealobjectsorpicturestolearnthenewwords:balloon,crayon,gun,robot,keyboardT:Doyouknowwhatitis?Learnthenewwords.Ss:It’s…
GroupworkT:It’saballoon.ItwasinventedbyNeilTillson.T:Howaboutthis?T:Right.It’sacrayon.Step2:LettheSsdiscusstheinventionstheycollectedandtheinventionsin2.Choosethetop3mostimportantandthetop3leastimportantinventions.Finish2.T:Youhavenamedsomanyinventions.Now,workingroups.DiscusstheinventionslistedontheBbandin2.Choosethetop3mostimportantandthetop3leastimportantinventions.Youshouldexplainwhyyouchoosethem.Whenyoufinish,putupyourhand.Ss:It’sacrayon.Discusstheinventionstheycollectedandtheinventionsin2.Choosethetop3mostimportantandthetop3leastimportantinventions.Finish2.S1:Wethinkcomputer,InternetandX-raymachinearethetop3mostimportant
T:Whichgroupisreadytoreport?T:Youhaveverygreatideas.Othergroups?inventions.Becausetheyhavechangedourlifesomuch.Theymakeourlifeeasierandmoreinteresting.Andwethinkguns,televisionsandcarsarethetop3leastimportantinventions.Becausegunsmakemanypeoplelosetheirlives,televisionsmakepeoplespendlesstimereadingandcarsmaketheenvironmentworse.S2:Wethink…3Pre-reading(6mins)GroupworkLettheSsdiscussthepre-readingquestionsin1a.T:Now,let’smovetothepre-readingquestionsin1a.DiscussQuestion1andDiscussthepre-readingquestionsin1a.S1:Wethinkinventionistomakesomethingnew.Idon’
Question3.Thenreporttoyourclass.Whenyoufinish,raiseyourhand.T:Group1,canweshareyouropinions?T:Ihopehisdreamwillcometrue.Anothergroup,please!T:Yes.Inventionsarenotalwaysimpossible.Everyonecanbeaninventoraslongasyouhavenewideasandtrytocarrythemout.tthinkIcanbeaninventor,becauseIamnotsmartenough.Butxxxsayshewantstobeaninventor,becausehelikescreatingnewthings.S2:Wethinkinventionsareusefulandhelpfultoourlife.Theycanhelpusdothingsbetterandfaster.Ioftenwatch“ILoveInventions”onTV.Wethinkinventionsarenotalwaysimpossible,thoughtherearemanydifficulties.S3:…
4While-reading(12mins)IndividualworkIndividualworkStep1:LettheSsread1aandtrytosummarizethemainideaofeachstepintheprocessofinventingthingstofinish1b.T:Doyouwanttobeaninventor?Ifyoudo,1acanhelpyou.Read1a,please.Underlinethenewwordsanddo1bwhilereading.T:Now,let’schecktheanswers.xxx,please!T:Whichoneisright?Step2:Read1aagainanddo1c.Checktheanswersandfinish1c.T:Read1aagainanddo1c.Whenyoufinish,putupyourhand.T:Now,let’schecktheanswers.Comeon,boysandgirls!Read1aandtrytosummarizethemainideaofeachstepintheprocessofinventingthingstofinish1b.S1:D-A-E-B-CS2:D-E-A-C-BSs:S2.Read1aagainanddo1c.Checktheanswersandfinish1c.S1:Imagination.老师在这个环节要培养学生根据各段的内容概括段落大意的能力。
S2:Important.S3:Detailed.S4:Test.S5:..5Post-reading(10mins)ClassactivityGroupworkStep1:Present“invent(v)+tion=invention(n),think(v)---thought(n),brain+storm=brainstorm(n/v),detail(n)+ed=detailed(adj),re+design=redesign,imagine(n)+tion=imagination(n)”onasmallBboronthescreen.LettheSslearnthewordsbywordformationandguessthemeaningof“silly,evaluate”bycontext.Step2:LettheSsread1aanddiscussthedifficultandkeypoints.T:Now,workingroups.Discussthedifficultandkeypoints.Learnthewordsbywordformation.Read1aanddiscussthedifficultandkeypoints.
T:Doyouhaveanyquestions,Group1?T:Itmeansthatpeopleinventedonethingwhiletheyweredoingsomeotherthings.Theyinventedthenewthingbyaccident,notonpurpose.T:…T:Howaboutthekeypoints?S1:Howdoweunderstand“Sometimesinventionsaretheresultofaccidents”?S2:CanweusewereinsteadofwasinthesentenceNoneofthesethingswasplantedinfields?S3:S4:Comeabout,thisisthetimetodosth.S5:Laughatsb.,hare…with…S6:…
6Summarizingandassigninghomework(5mins)ClassactivityStep1:LettheSsrepeatthepassagewiththehelpofthekeywords:first,imagination,then,plan,design,third,detailed,drawing,model,test,afterthat,name,last,share.T:Now,closeyourbook,please!Let’sretelltogetherhowtobeaninventor.One,Two,Three,go!T:Rememberthesesteps.Whenyouareinventingsomethings,followthem.Step2:HMKT:Wehavelearnedhowtobeaninventor.Now,it’syourturntocreateyourowninventions.Lookatthequestionsandtipsin3.Theymayhelpyouintroduceyourinventions.Retellhowtobeaninventorwiththehelpofthekeywords.Ss:First,youshoulduseyourimagination.Then,youshouldplananddesignit.Third,youshouldmakeadetaileddrawingofyourinventionandmakeamodel.Youmusttestyourinventionagainandagain.Afterthat,youshouldnameyourinvention.Last,youshouldshareyourinventionwithothers.
Ⅶ.BlackboarddesignWhenwasitinvented?SectionCWordsandphrases:invent+tion=inventionthink—thoughtbrain+storm=brainstormforideasandevaluatethem.detail+ed=detailedre+design=redesignimagine+tion=imaginationcrayonballoncomeabout...Grammar:was/were+ppSentences:That’swhynowwehaveplanes.Theyweren’tdiscouragedbywhatpeoplesaid.Thisisthetimetobrainstorm
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