1、Topic2.Thepopulati初中英語博愛科普2011課標版教課目標Learningaims1.Knowledgegoal(1)Goonlearningthepresentperfecttense.(2)Learnhowtoexpressbignumbers.(3)Drills:Itisincreasingby80millioneveryyear.thepopulationindevelopingcountriesislargerthanthatindevelopedcountries.2.MethodgoalLetthestudentspracticebignumbersinourda

2、ilylifeandmasterthem.3.EmotiongoalLetstudentscareaboutthelargepopulationofChina.Letthestudentsknowaboutthelargepopulationtobringbadresultstotheworld.2學情解析AnalysisofthestudentsThestudentshavelearnedEnglishformorethantwoyears.Theycanunderstandtheuseoftheperfecttense,andcanexpresssimplenumbersinEnglish

3、.ThestudentshavetakengreatinterestinEnglishnow.ItsnotdifficultforthemtomaserUnit1Topic2SectionB.要點難點Learningfocus.Talkaboutthepopulationindifferentcountriesinbignumbers.Learningdifficulties.(1)Talkaboutthepopulationindifferentcountries.(2)Howtoletstudentsexpressbignumbersfreely.教課過程4.1第一學時教課活動活動1【導(dǎo)入

4、】Step1WarmingupStep1.WarmingupShowsomepictureswithlargepopulationandmakesomedialogsbetweenstudentsandateacher.Forexample:Haveyoubeenthere?S1:No,Ihavnt.T:Wouldyouliketogothere?S1:No.T:Why?S1:Becausetherearetoomanypeople.Showsomepictureswithinourdailylifeersandmakesomedialogsbetweenstudentsandateacher

5、.T:HowdoyousayitinEnglish?S1:OnehundredandfiftyyuannumbWhataboutthisone?Thisone?Thisone?S4:.Thentheteacherask,“WhatsthepopulationofChina?”andleadintonewlesson.活動2【解說】Step2、3、4Step2Readingquestioned,independentinquisition1.Showlearningaims.2.Letthestudentsreadnumbersandfindtherules.andstudythefollowi

6、ng000,5.18fivepointoneeight100onehundred1,000onethousand1,000,000onemillion1,000,000,000onebillion1,000,000billionmillionthousand3.Listenandreadthenumbers,payingspecialattentiontotheintonation.543.8fivehundredandforty-threepointseven1562onethousand,fivehundredandsixty-two6004001sixmillion,fourthousa

7、ndandone7198764502sevenbillion,oneandninety-eightmillion,sevenhundredandsixty-fourthousand,fivehundredandtwo4.Listencarefullyandfindthequestionsstudentshundredthatdontunderstand.5.Listento1a,answer(1)Whatsthe(2)Whichcountrythefollowingquestions.populationoftheworld?hasthemostlargestpopulation?Step3M

8、ulti-dimensionalinteraction,cooperationinquiredinto1.Discussingroupstosolvetheproblemsthatstudentsdontunderstand.Discussingroupsandreadthefollowingnumbers.(1)973ninehundredandseventy-three(2)3980threethousand,ninehundredandeighty(3)98721ninety-eightthousand,sevenhundredandtwenty-one768540sevenhundre

9、dandsixty-eightthousand,fivehundredandforty(5)2346780twomillion,threehundredandforty-sixthousand,(6)82346dandsevenhundred580eighty-twoandmillion,eightythreehundreforty-sixthousand,fivehundredandeighty(7)405000000fourhundredandfivemillion(8)5555555555fivebillion,fivehundredandfifty-fivemillion,fivehu

10、ndredandfifty-fivethousand,fivehundredandfifty-five3.Listencarefullyandretellthedialogaccordingtothemessagesthataregiven.A:Whatalargepopulation!Theworldhas6.8billion.Anditis80millioneveryyear.B:WhichcountryA：?Chinahasthelargestpopulation.It1.3billion,andIndiaiswith.B:theUSA?A：309million.B:Itshowstha

11、tindevelopingcountriesthanindevelopedcountries.A:Theisgrowingfaster.B:Soitis.Thepopulationproblemindevelopingcountries.A:Chinacarriedoutontrolthepopulation.4.Listento1aandmatchtheinformation,andfinish1b.1.theworldA.309million2.Chinabillion3.Indiabillion4.theUSAbillion5.Discussingroups,read1aandfilli

12、ntheblanks.Theworldhasapopulationof6.8billionanditisincreasingby_everyyear._hasthelargestpopulation.Ithasalreadyreached_andIndiais_with1.1billion.Thepopulationindevelopingcountriesis_andisgrowing_thanthatindevelopedcountries.Luckily,ourcountryhascarriedoutthe_policytocontrolthepopulation.6.Workingro

13、upsanddiscussthepopulationoftheworld.Withthehelpofchartandquestions.(1).Whichofthese5countrieshasthelargest/smallestpopulation?Whatsthepopulationofit?(2).Whatcanyoutellfromthepopulationindevelopingcountriesandindevelopedcountries?(3).Whatproblemsdoesthelargepopulationcause?(4).Whatmeasuresdoyouthink

14、shouldbetakentocontrolthepopulation?Step4Migrationapplication,developmentinquiredintoDoasocialactivity.DividestudentsintoseveralgroupsandmakeasurveyofthepopulationaboutChina/India/theUSA/Canada/Russia.Drawadiagram.Makesimilarconversationsaftertheexample.Forexample:A:Whatsthepopulationoftheworld?B:It

15、sabout6.8billion.活動3【練習】Step5Trainingexamination,goalinquisitionChoosethebestanswer.1._isthepopulationofRussia?143million.2.Thereare_studentsinourofschool.C.threethousandOfD.three3.Jennythousandalwayshelpsothers._.sheD.Soshedoes4.ThepopulationofChinais_thanthatofJapan.A.largerB.moreC.fewerD.Less5.Th

16、epopulationofShanghaithan_Jinan.Aislarger,thatinBarelarger,thatofCislarger,thatofDarelarger,thatin6.ThepopulationofJapanis_thanthatofIndia.AlessBfewerCmoreDsmallerClassroomsubtotalInthisclasswehavelearnedthepresentperfecttense/howtobignumbersinEnglishanddrills:(1)Itisincreasingby80millionyear.(2).thepopulationindevelopingcountriesislargerthandevelopedcountries.Itsnecessaryforstudentstocareabouttheworldsgrowingpopulation.expresseverythatinBlackboardwritingdesignItisincreasingby80millionever