英语人教版九年级全册when was it invented

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1、Unit6Whenwasitinvented?SectionB(1a~1e)一．教材内容分析及设计思路本节课继续围绕发明创造这个话题美食发明——薯条，要求学生继续学习和巩固一般过去时被动语态，通过设计游戏活动、图片和实物直观展示、亲口品尝体验活动以调动学生课堂积极参与，活跃课堂气氛，激发学生学习兴趣。二、教学目标1、Tointroduceandexpandvocabulary.2.LetstudentsunderstandandusethePastPassiveVoice.3.Toknowhowpotatoch

2、ipswasinvented.4.Improvestudents’listeningandspeakingskills.三、教学重点及难点ImportantwordsandphrasesTheusageofthePastPassiveVoice.四、教学过程Step1.Playaguessinggame“Areyouclever?”1.letstudentslookatthescreenandreadthefirstdescriptionthenguesswhatitis.2.Readtheseconddesc

3、riptiontogether,askstudentstoguesswhatitis.设计意图：通过游戏活动，让学生复习巩固所学的一般过去时态的被动语态的句型，运用简短的语篇以检测学生阅读理解能力，同时也为后面的活动作铺垫。Step2Lookandsay1.letstudentslookatthepictureoffridge.say“Therearesomedeliciousfoodanddifferentkindsofdrinksinthefridge.wouldyouliketoeatordrink?”.

4、Askstudentsdiscussandsaysomereasons.2.Lookatsomepicturesandlearnnewwords.3.Asksomequestionsaboutthesepictures:whatisit?Howaboutitstaste?Whydoyouliketoeatit?ect.设计意图：直观的图片展示几种常见食物，复习这些食物名称单词并学习本节课新单词：sweet、crispy、salty、sour、lemon，并用恰当的描述性形容词对食物口感作出评价。Step3Tas

5、teandwritePlaythegam“feelandtaste”1.Preparestudentsforsomefoodandfruits(anorange、abanana、alemon、somegrapes、potatochips、biscuits),puttheminabag.2.Coverseveralstudents’eyeswithredscarves,thenletstudentsfeelandtastethefoodonebyone,sayoutthewordsandwritethemonth

6、eblackboard.3.Checkthewords,thenreadtogether.设计意图：学生亲手摸一摸，亲口尝一尝，说出并写出食物名称单词及口味的形容词，这一活动调动了学生学习兴趣，激发课堂活力，活跃课堂气氛，使学生在实践中学习并掌握知识。Step4Guessandsay1.Showawatchtotheclass,Askquestions:whosewatchisit?canyoutellmewhoitwasinventedby?Whenwasitinvented?2.Asktwostudents

7、answerthequestionsandwritetheconversationsontheblackboard.A:Whowasitinventedby?B:ItwasinventedbyNapoleon.A:Whenwasitinvented?B:Itwasinventedin1806.3.Readtogether.设计意图：通过向学生实物展示一块手表，以此活动呈现本节课重点句型，为扫清听力语言障碍作准备。Step5Listening1.Firstlistentoaconversationaboutthe

8、inventionofpotatochips.2.Listenagain,circleTfortrueorFforfalse.3.Checktheanswers4.Listenagain,completethesentences.5.Checktheanswersthenread.设计意图：通过让学生听关于薯条发明的小故事，判断句子正误，并根据对话内容改写语篇填空，训练学生捕捉信息，处