仁愛英語九年級教案U1T2SC

Unit1TheDevelopingWorldTopic2Whatalargepopulation!SectionCThemainactivitiesare1aand2a.本課重點(diǎn)活動是1a和2a。Ⅰ.Teachingaimsanddemands教學(xué)目標(biāo)1.Learnthenewwordsandusefulexpressions:difficulty,beshortof,sofar,percent,offer.2.Talkabouttheproblemstheoverpopulationbringsabout:(1)It’sdifficultforlotsofpeopletofindjobs(2)…,weareshortofenergyandwater.(3)Mostcitiesaremorecrowdedthanbefore,andthetrafficismuchheavier.3.Getstudentstoknowhowserioustheworld’spopulationproblemis.Ⅱ.Teachingaids教具錄音機(jī)/多媒體/小黑板/圖片Ⅲ.Five-fingerTeachingPlan五指教學(xué)方案Step1Review第一步復(fù)習(xí)(時間:10分鐘)1.(用添加數(shù)字的方法復(fù)習(xí)高位數(shù)字，使學(xué)生由淺入深地掌握知識。操作：教師首先在黑板上寫出一個兩位數(shù)，然后逐次在后面加上一個數(shù)字，被提問的學(xué)生由基礎(chǔ)較差的向基礎(chǔ)較好的依次遞進(jìn)。)T:I’llwritenumberslikethis“88-888-8888,…-8,888,888,888”.Saythesenumbersasquicklyasyoucan,clear?Ss:Yes.T:88.S1:Eighty-eight.T:888.S2:Eightyhundredandeighty-eight.T:8,888.S3:Eightthousand,eighthundredandeighty-eight.T:8,888,888,888S3:Eightbillion,eighthundredandeighty-eightmillion,eighthundredandeighty-eightthousand,eighthundredandeighty-eight.…2.(多媒體展示世界各國人口圖表，復(fù)習(xí)SectionB中重要句型。)T:Youhavemasteredhowtosaythesenumbers.Nowlookatthechartandreviewwhatwe’velearnedinSectionB.What’sthepopulationoftheworld?Ss:Itissaidthattheworldhasapopulationof6.5billion.T:Whichcountryhasthelargestpopulation?Ss:Chinahasthelargestpopulationwith1.3billion.Istheworld’spopulationincreasingnow?Ss:Yes,theworld’spopulationisincreasingby80millioneveryyear.Itreallyisoneofthegreatestproblemstoday.Ithinkweshoulddosomethingtosolvethisproblem.T:T:Ss:Yes.Step2Presentation第二步呈現(xiàn)(時間:12分鐘)1.(教師展示人才市場的圖片或多媒體播放春節(jié)前各大銀行排隊(duì)取錢的畫面，并給出一些材料，引出1a。)T:Justnow,wehaveknowntheworldhasalargepopulation.Now,lookatthepictureandlistentomymaterialsaboutpopulation.1.Everyminuteabout261babiesarebornintheworld.2.Theworld’spopulationisgrowingfasterandfaster.3.Chinahasthelargestpopulationintheworld.4.China’spopulationhasreachedonefifthoftheworld’spopulation.Whatdoyouthinkofthepictureandthematerials,boysandgirls?Ss:That’sterrible!T:Yes.Thegrowingpopulationwillcausemanydifficulties.Itwillinfluencethedevelopmentoftheworld’seconomy.Sofar,somefamiliescan’toffertheirchildrenagoodeducation.(板書單詞difficulty,offer，詞組sofar，要求學(xué)生掌握。)difficult(adj.)—difficulty(n)—difficulties(n.pl)offeroffersb.sth.=offersth.tosb.sofarT:Doyouwanttoknowotherproblemscausedbythelargepopulation?Ss:Sure.Weareshortofenergyandwater.(教師幫助學(xué)生回答)(板書。要求學(xué)生掌握詞組beshortof。)beshortofT:Yes,nowChina’spopulationisonefifthoftheworld’spopulation.Itmeansitis20percentoftheworld’spopulation,soChinahastakensomemeasurestosolvetheproblem.Doyouknowwhattheyare?(板書onefifth，詳解并要求學(xué)生掌握分?jǐn)?shù)表示法，掌握單詞percent，理解詞組takemeasuresto。)Ss:Oneisknownastheone-childpolicy.IthasworkedwellincontrollingChina’spopulation.T:Thankstothepolicy,Chinaisdevelopingquicklyandpeople’slivingconditionsareimprovingrapidly.(讓學(xué)生認(rèn)識到beknownas,thanksto的用法。)(讓學(xué)生讀1a，然后回答1a中的兩個問題。)Step3Consolidation第三步鞏固(時間:10分鐘)1.T:Boysandgirls,pleaseread1aagainandthenretellit,accordingtothekeywordsontheblackboard.(學(xué)生閱讀1a的同時,教師把關(guān)鍵詞列在小黑板上。)6.6million3billionhalfonefifthcausedifficultiestakemeasurestoworkwellinlivingconditionsseriousalongway(讓兩位同學(xué)看著小黑板上的關(guān)鍵詞復(fù)述1a。當(dāng)學(xué)生表達(dá)錯誤時,教師給予糾正。當(dāng)學(xué)生表達(dá)不出時,教師或其他同學(xué)給以幫助,以提高學(xué)生口語復(fù)述能力。)2.T:Let’slookat1b(workalone).DescribethedisadvantagesofChina’slargepopulationaccordingto1aandwritethemdown.Youhavetwominutes.(給學(xué)生兩分鐘完成,然后讓幾位學(xué)生寫到黑板上。)T:NowIwillaskseveralstudentstowritetheiranswersontheblackboard.S1:Smallerplacestolivein.S2:Difficulttofindjobsforlotsofpeople.S3:Shortofenergyandwater.S4:Mostcitiesaremorecrowded.S5:Thetrafficisheavier.S6:Therewillbemuchmorepollution.S7:…T:Youranswersarewonderful.Step4Practice第四步練習(xí)(時間:8分鐘)1.T:Now,lookatthepicture.Theearthisfullofpeople.Thepopulationproblemisserious.Pleaselistentothetapeandcompletethearticlein2a.(教師拿出一張”地球上站滿人”的圖片或?qū)D片展示在多媒體上。讓學(xué)生仔細(xì)觀察,然后播放錄音2a。)T:Now,lookatthetextbyyourselves.Let’slistentothetapeagainandchecktheanswers.(讓學(xué)生核對完后,一起齊讀這篇短文。)T:Youhaveunderstoodthetext.Let’sdotheexercisein2b.Thenwewillchecktheanswers.(給學(xué)生一分鐘,理解2b中的四個句子,讓一位學(xué)生回答。)2.(如果有時間,讓學(xué)生完成一個復(fù)述性的填空。)T:Pleaselookatthesmallblackboard.Finishthemaccordingto1a.(教師出示準(zhǔn)備好的小黑板,讓學(xué)生把答案寫在課堂作業(yè)紙上。)In2007,theworld’spopulationwasabout.Morethan______________peopleliveinAsianow.Chinahasthelargestpopulationintheworld,andabout__________ofthepeopleintheworldliveinChina.Alargepopulationmanydifficulties.Chinahasdonesomethingtothepopulation.rapidly.thepolicy,Chinaisdevelopingquicklyandpeople’slivingconditionsareimprovingT:Let’scheckyouranswerstogether.(在短文中呈現(xiàn)正確答案,并讓同學(xué)們一起朗讀。附答案為：6.6billion,threebillion,onefifth,causes,control,Thanksto。)Step5Project第五步綜合探究活動(時間:5分鐘)1.T:Youhaveknownsomuchaboutthepopulation.Now,turntoPage14andwritealettertoyourpenpalaboutthepopulationprobleminChina.Thequestionsin3mayhelpyou,thenIwillasksomestudentstoshowtheiropinions.(學(xué)生們互相交流想法。)(讓學(xué)生寫一封信給他/她的筆友,談?wù)勊?她對中國人口問題的看法,可以借鑒3中五個問題的說法。寫的好的，可以讀一小段給同學(xué)聽。教師說明寫信時必須注意的事項(xiàng)。)2.Homework:Makeasurveyandcompletethechart,thenwriteasurv