MODULE11PopulationUnit1It’sthebiggestcityinChina教学案例FunctionTalkingaboutandunderstandinglargenumbersStructureArticles;largenumbersListening/SpeakingCompletingatablewithnumbersTalkingaboutpopulationReading/WritingCheckingyourownideaswithapassageWritingabouttheproblemsofyourcityAroundtheworldPopulationandwaterTaskMakingagraphUnit1It’sthebiggestcityinchinaStep1Warmupbytalkingaboutpopulation.Hello,class.WehavecometoModule11Population.Butwhatispopulation?Apopulationisthenumberoflivingthingsinanarea.Acity'spopulationisthenumberofhumanslivinginthatcity.Thepopulationincludesallagesandracesthatliveinthatcertainarea.Populationdensityistheaveragenumberofpeopleinaplace.Inareaswithahighpopulationdensity,peopleliveclosetoeachother.Inareaswithalowpopulationdensity,peopleusuallylivefarawayfromeachother.Usuallypopulationisaboutthenumberofanimalsorhumansthereareinacertainarea.Step2Listenandread.Onpage88isaconversationamongBetty,Lingling,DamingandTony.TheyaretalkingaboutHomeworkHelpBeforewelistentoit,let’sgoontoreaditfirst.Whilereading,tryto:cut/thesentenceintothoughtgroups,studythepredicative,darkentheconnectivesandunderlinealltheusefulexpressions.(阅读过程中，断开/意群，观察谓语构成，圈出连词，摘录短语搭配。)Usefulexpressions(有用的短语搭配)howaboutanother…,thisweek'shomework,toomuchtraffic,intherightplace,talkabout…,thebiggestcityinChina,anincreasingpopulation,anenvironmentalprobleminmanycountries,alongwiththecrowds,thetransportproblems,lookupsomefacts,make136,130,400babieseveryyear,about20percentoftheworld'spopulation,cometoward…,one’sappointmentwith…,theheadteacher,theschool-prizegiving,comeupnextweek,withtheusualformprizes,thebasketballcompetition,thephotocompetition,aspecialprizefor…,thebestnewschoolmagazineinBeijing,thanksto…,presenttheprizes,noidea,thesingerwith…step3Findsentenceswitharticles;largenumbers.Goovertheconversationagaintofindsentenceswitharticles;largenumbers.ThenwritealargenumberandsayitinEnglish.1.Beijingisabigcity.2.ChongqingisthebiggestcityinChina.3.Thatmakes136,130,400babieseveryyear.4.AndthepopulationofChinaisaboutonebillion,threehundredmillion…4,215→fourthousand,twohundredfifteen12,321→twelvethousand,threehundredtwenty-one34,455,672,456→thirty-fourbillion,fourhundredfifty-fivemillion,sixhundredseventy-twothousand,fourhundredfifty-six23,165→twenty-threethousand,onehundredsixty-five3,257,890→threemillion,twohundredfifty-seventhousand,eighthundredninety345,216,789,065,443→threehundredforty-fivetrillion,twohundredsixteenbillion,sevenhundredeighty-ninemillion,sixty-fivethousand,fourhundredforty-three1,234,567,890→onebillion,twohundredthirty-fourmillion,fivehundredsixty-seventhousand,eighthundredninety12,345,678,901,234,567,890→twelvequintillion,threehundredforty-fivequadrillion,sixhundredseventy-eighttrillion,ninehundredonebillion,twohundredthirty-fourmillion,fivehundredsixty-seventhousand,eighthundredninety(Forhowtosayreallybignumber,goto:http://www.mathcats.com/explore/reallybignumbers.html)Step4Talkastheydo.(仿说)Nowingroupsweshalltrytosaysomethingaboutpopulationanditsproblems.Makeuseoftheinformationfromtheconversationwelearnedjustnow.Tony:WhatisthepopulationofChina?Daming:ThepopulationofChinaisaboutonebillion,threehundredmillion…Lingling:Itisabout20percentoftheworld'spopulation.Daming:Alargepopulationmakesmanyproblemsforourcountry.Tony:Andwe'reintherightplacetotalkabouttheseproblems.Lingling:Therearetoomanypeopleandthereisnotenoughspace,andthereistoomuchtraffic,noiseandpollution.Tony:AnincreasingpopulationisanenvironmentalprobleminmanycitiesinChina.Betty:Alongwiththecrowds,thereistoomuchsmoke,andthetransportproblemsareserious.Styep5Closedownbyaskingandansweringconversationquestionsaboutenvironmentandpollution.1.Howhastheworldchangedsinceyouwereachild?2.Ifhumansarereallyclever,whycan'ttheydoanythingaboutoverpopulation?3.Whataresomethingsthatcanberecycled?4.Whataresomewaystoreducepollutioninthiscountry?5.Whatcanyoudotomakethisworldabetterplace?6.Whatisthemostimportantissuefacingtheenvironmenttoday?7.Whataresomewaysenergyiswasted?8.Whatcanwedotoimproveourairquality?9.Howcanweprotecttheenvironmentandatthesametimeimprovepeople'sstandardofliving?10.What'shappeningtoforestsinyourplace?Step6practice板书MODULE11Populationunit1It’sthebiggestcityinchina(Forhowtosayreallybignumber,goto:about20percentoftheworld'spopulation
