九年级上仁爱版英Unit1Topic2WhatalargepopulationSectionC教学设计Themainactivitiesare1aand2a.本课重点活动是1a和2a。Ⅰ.Teachingaimsanddemands教学目标1.Learnthenewwordsandusefulexpressions:difficulty,beshortof,sofar,percent,offer.2.Talkabouttheproblemstheoverpopulationbringsabout:(1)It’sdifficultforlotsofpeopletofindjobs(2)…,weareshortofenergyandwater.(3)Mostcitiesaremorecrowdedthanbefore,andthetrafficismuchheavier.3.Getstudentstoknowhowserioustheworld’spopulationproblemis.Ⅱ.Teachingaids教具录音机/多媒体/小黑板/图片Ⅲ.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间:10分钟)1.(用添加数字的方法复习高位数字，使学生由浅入深地掌握知识。操作：教师首先在黑板上写出一个两位数，然后逐次在后面加上一个数字，被提问的学生由基础较差的向基础较好的依次递进。)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.(多媒体展示世界各国人口图表，复习SectionB中重要句型。)T:Youhavemasteredhowtosaythesenumbers.Nowlookatthechartandreviewwhatwe’velearnedinSectionB.What’sthepopulationoftheworld?Ss:Itissaidthattheworldhasapopulationof6.5billion.T:Whichcountryhasthelargestpopulation?Ss:Chinahasthelargestpopulationwith1.3billion.T:Istheworld’spopulationincreasingnow?Ss:Yes,theworld’spopulationisincreasingby80millioneveryyear.T:Itreallyisoneofthegreatestproblemstoday.Ithinkweshoulddosomethingtosolvethisproblem.Ss:Yes.Step2Presentation第二步呈现(时间:12分钟)1.(教师展示人才市场的图片或多媒体播放春节前各大银行排队取钱的画面，并给出一些材料，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.(板书单词difficulty,offer，词组sofar，要求学生掌握。)difficult(adj.)—difficulty(n)—difficulties(n.pl)offeroffersb.sth.=offersth.tosb.sofarT:Doyouwanttoknowotherproblemscausedbythelargepopulation?Ss:Sure.Weareshortofenergyandwater.(教师帮助学生回答)(板书。要求学生掌握词组beshortof。)beshortofT:Yes,nowChina’spopulationisonefifthoftheworld’spopulation.Itmeansitis20percentoftheworld’spopulation,soChinahastakensomemeasurestosolvetheproblem.Doyouknowwhattheyare?(板书onefifth，详解并要求学生掌握分数表示法，掌握单词percent，理解词组takemeasuresto。)Ss:Oneisknownastheone-childpolicy.IthasworkedwellincontrollingChina’spopulation.T:Thankstothepolicy,Chinaisdevelopingquicklyandpeople’slivingconditionsareimprovingrapidly.(让学生认识到beknownas,thanksto的用法。)(让学生读1a，然后回答1a中的两个问题。)Step3Consolidation第三步巩固(时间:10分钟)1.T:Boysandgirls,pleaseread1aagainandthenretellit,accordingtothekeywordsontheblackboard.(学生阅读1a的同时,教师把关键词列在小黑板上。)6.6million3billionhalfonefifthcausedifficultiestakemeasurestowor...
