高二英语saving the earth教案1

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,6/8/2017,#,Unit,9,Saving,the,earth,1Brief,Statements,Based,0n,the,Unit,In,this,unit，Ss,will,do,some,listening,speaking，reading,and,writing,practiceAlso,they,will,learn,to,use,the,InversionIn,the,first,period，Ss,wi1l,improve,their,speaking,ability,by,talking,about,nature,ecology,and,the,environment,and,they,will,listen,to,some,listening,material,about,our,environmentAfter,the,study,of,this,period，they,will,improve,their,speaking,and,listening,abilities,and,also,know,something,about,the,problems,facing,the,earthIn,the,second,period，Ss,will,read,a,passage,about,the,Earth,SummitFrom,the,passage,Ss,will,know,more,about,the,importance,of,protecting,our,earthIn,the,third,periodSs,will,study,the,grammar,item：InversionAfter,doing,some,exercises,provided,in,this,period,and,with,the,help,of,the,teacher,，,Ss,will,know,how,to,use,the,InversionTeacher,may,provide,more,exercises,for,Ss,to,consolidate,if,necessaryIn,the,last,period，Ss,will,listen,to,two,speeches,from,the,Earth,Summit,and,finish,the,practice,provided,in,the,first,partSs,will,know,more,about,the,Earth,Summit,and,improve,their,listening,abilityIn,the,writing,part,Ss,will,improve,their,writing,ability,by,writing,an,evaluation,paragraph,with,the,help,of,some,given,expressionsAfter,the,study,of,this,unitSs,will,know,how,to,support,an,opinion，and,they,will,know,more,about,environment,protectionThey,will,know,that,if,all,of,us,make,small,changeswe,could,make,a,big,differenceThey,will,do,more,to,protect,our,earth,IITeaching,Goals,1Talk,about,nature,ecology,and,the、environment,2Practise,supporting,an,opinion,3Learn,to,use,inversion,4Write,an,evaluation,paragraph,IIITeaching,time：Five,periods,IVBackground,Information,1Protect,The,Ozone,Layer,In,the,middle,of,winter，when,snow,is,falling,in,many,parts,of,the,United,States,scientists,have,sounded,a,warning,to,people,who,plan,to,spend,many,hours,in,the,sun,this,summerThe,warning：The,suns,summer-time,rays,are,more,dangerous,than,once,thought,A,team,of,scientists,from,80,nations,recently,reported,to,the,United,Nations,that,a,layer,of,ozone,in,the,atmosphere,which,protects,humans,from,harmful,levels,of,ultraviolet,radiation，will,be,thinner,over,the,United,States,this,summerThe,thinner,1ayer,allows,more,ultraviolet,rays,from,the,sun,to,reach,the,earthThe,extra,amount,of,ultraviolet,radiation,could,cause,an,increase,in,the,number,of,cases,of,skin,cancer,Scientists,first,became,concerned,about,the,ozone,layer,in,the,mid-1980s,when,a,hole,was,discovered,in,the,layer,above,Antarctica,during,the,winterThe,hole,was,caused,by,chemicals,used,in,refrigerators,and,air,conditionersWhen,these,chemicals,are,sent,out,into,the,atmosphere,they,produce,gases,that,destroy,the,ozone,Concern,about,the,protective,ozone,layer,rose,more,recently,when,data,from,satellites,and,ground,stations,showed,that,ozone,levels,were,dropping,over,areas,other,than,AntarcticaLow,ozone,levels,were,recorded,in,the,spring,and,summer,over,the,United,States,and,over,other,populated,areas,in,the,world,Although,many,countries,have,already,begun,stopping,the,use,or,ozonedestroying,chemicals,the,new,findings,are,expected,to,advance,the,timetable,for,a,total,ban,of,the,chemicals,2Pollution,People,today,all,over,the,world,are,beginning,to,hear,and,learn,more,and,more,about,tile,problem,of,pollutionPollution,is,caused,either,by,the,release(排放)of,completely,new,and,often,artificial,substances,into,the,environment,or,by,releasing,greatly,increased,amounts,of,a,natural,substancesuch,as,oil,from,oil,tankers,into,the,seaWith,the,development,of,modern,industry，many,of,the,goods,and,machines,we,need,and,use,in,our,daily,lives,are,creating,a,number,of,waste,products,which,upset,the,environment,balanceMany,of,these,waste,products,can,be,prevented,if,people,pay,more,attention，but,clearly,while,more,and,more,new,goods,are,produced,and,made,complex，there,will,be,new,dangerous,wastes,to,be,thrown,away，for,example，the,waste,products,from,nuclear,power,stationsMany,people，therefore,see,pollution,as,only,part,of,a,larger,and,more,complex,problem,There,is,no,doubt,that,much,of,the,pollution,caused,could,be,controlled,if,only,companies,individuals,and,government,would,make,more,effortsIn,the,home,there,is,an,obvious,need,to,control,litter,and,wasteFood,comes,wrapped,up,three,or,four,times,in,packages,that,all,have,to,be,got,rid,of；drinks,are,increasingly,sold,in,bottles,or,times,which,cannot,be,reusedThis,not,only,causes,a,litter,problem，but,also,is,a,great,waste,of,resources，in,terms,of,glass，metals,and,paper,Advertising,has,helped,this,process,by,persuading,many,of,us,not,only,to,buy,things,we,neither,want,nor,needbut,also,to,throw,away,much,of,what,we,do,buyPollution,and,waste,combine,to,be,a,problem,everyone,can,help,to,solve,by,cutting,unnecessary,buying,over,consumption,and,careless,release,of,the,products,we,use,in,our,daily,lives,The,First,Period,Teaching,Aims：,1.Train,the,students,listening,ability,2.Improve,the,studensspeaking,ability,by,talking,about,nature,ecology,and,the,environment,3.Learn,and,master,some,useful,expressions,for,supporting,an,opinion,4.Help,the,students,to,know,something,about,the,pollution,Teaching,Important,Points：,1Improve,the,studentsspeaking,ability,2Improve,the,studentslistening,ability,3Help,the,students,to,learn,to,support,an,opinion,Teaching,Difficult,Points：,1How,to,improve,the,studentsspeaking,and,listening,abilities,Teaching,Methods,1,Listening-and-answering,activity,to,help,the,students,go,through,the,listening,material,2Discussion,to,make,the,students,practice,supporting,an,opinion,3Individual，pair,or,group,work,to,make,every,student,work,in,class,Teaching,Aids：,1the,multimedia,2a,tape,recorder,3the,blackboard,Teaching,Procedures：,Step,I,Greetings,Greet,the,whole,class,as,usual,Step,II,Warming,up,(Show,the,pictures,on,the,screen),T:,Look,at,these,pictures.,How,beautiful,they,are!,Do,you,want,to,pay,a,visit,to,these,places?,Ss：Yes,T：But,in,some,places，its,not,so,beautiful,Look,at,the,picturesplease,(Show,the,following,pictures,on,the,screen),T：What,can,you,see,in,the,pictures?,S：1,can,see,a,river，which,is,pollutedThe,river,water,is,very,dirty,S：I,can,see,smoke,coming,from,many,chimneys，and,the,air,is,darkThe,air,is,polluted,T：GoodWhich,problem,do,you,think,is,the,biggest,one,facing,the,earth?,S：I,think,it,is,the,water,pollution,T：Why,do,you,think,so?,S：Because,if,water,is,pollutedPeople,will,not,be,able,to,get,clean,water,to,drink；,therefore，many,people,will,get,sickIts,terrible,T：Very,goodWho,has,a,different,opinion?,S：,I,think,the,air,pollution,is,the,biggest,problem,Because,if,the,air,is,polluted，,there,will,not,be,clean,air,for,us,to,breatheEverybody,will,get,terrible,diseases,T：Quite,rightNow，who,can,tell,us,what,causes,these,problems?,S：I,think,it,is,because,people,pay,no,attention,to,our,environmentThey,pour,waste,water,into,rivers，1akes,and,seas,without,cleaning,it,S：The,air,pollution,is,caused,by,the,factoriesPeople,build,factories,to,develop,the,industry，but,they,never,pay,attention,to,controlling,the,pollutionThe,harmful,smoke,should,be,made,harmless,before,it,goes,into,the,air，but,few,factories,would,like,to,do,so,because,this,will,cost,much,T：Very,goodNow，who,knows,what,we,can,do,to,solve,these,problems?,S：I,think,our,government,should,pay,more,attention,to,environmental,protectionThey,should,check,the,factories,as,often,as,possible,to,make,sure,they,dont,pour,waste,water,into,rivers,or,lakes,and,make,sure,they,dont,let,harmful,smoke,go,into,the,air,T：Good,ideaNow，please,open,your,books,and,turn,to,Page,65There,are,six,pictures,in,Warming,upWe,have,just,talked,about,two,of,themNow，work,in,groups,of,four,to,talk,about,the,other,picturesAnswer,the,questions,below,the,pictures,(A,while,1ater，ask,some,students,to,act,out),Step,III,Preparation,for,Listening,and,Listening,T：Very,goodI,think,youre,known,something,about,our,environment.,Now，please,turn,to,Page,66Look,at,the,picture,in,ListeningWhat,can,you,see?,Ss：A,person,is,making,a,speech,to,the,audience,T：Can,you,guess,what,speech,she,is,giving?,Ss：Maybe,about,our,earth,T：OKNow，lets,listen,to,the,tapeIll,play,it,twice,for,youListen,carefully,to,answer,the,questions,in,Part,1,(Play,the,tape,twice,for,Ss,to,listen,and,write,down,their,answersThen,ask,some,students,to,read,out,their,answersCheck,with,the,whole,classThe,teacher,says,the,following),T：GoodYoure,done,very,well,But,from,the,passage,we,know,that,she,hasnt,finished,her,speechWhat,do,you,think,she,wi1l,say,next?,Have,a,short,discussion,in,pairsplease(Ss,have,a,short,discussion,and,then,the,teacher,asks,one,or,two,pairs,to,say,their,answers)Well,doneNow1ets,listen,to,the,second,partListen,carefully,to,outline,the,speakers,two,arguments.,Fill,in,the,table,in,Part,2Are,you,ready?,Ss：Yes,T：OKLets,begin,(Play,the,tape,twice,for,Ss,to,Listen,and,write,down,their,answersPause,the,tape,if,necessary.,Then,ask,several,students,to,read,out,their,answers),T：Now，lets,listen,to,the,tape,again,to,check,your,answers(Play,the,tape,once,more,and,then,check,the,answers,with,the,whole,class)GoodP1ease,think,a,bout,what,the,speaker,will,say,nextYou,call,use,what,you,have,heard,on,the,tape,to,predict,what,will,come,nextMake,an,outline,like,the,one,in,the,table,and,then,write,down,what,you,think,the,speaker,will,sayYou,can,work,in,pairs,or,groups,of,four,as,you,like,(A,moment,1ater，ask,some,students,to,read,out,their,paragraphs,and,compare,different,speeches,to,choose,the,best,one),Step,Speaking,T：Well,done!,Weve,talked,much,about,pollutionWe,know,that,pollution,is,a,big,problem,facing,the,earthBut,why,cant,we,stop,the,pollution?,Why,doesnt,our,government,shut,down,the,factories,that,pollute,the,environment,badly?,Who,knows?,S：I,think,our,government,must,have,its,own,opinionMaybe,they,think,the,factories,are,more,important,than,the,environmentBecause,the,government,can,get,lots,of,money,from,factoriesIf,they,shut,the,factories,down,it,will,not,be,able,to,get,so,much,moneyAnd,this,is,not,good,for,the,development,of,the,city,or,town.,T：YesDifferent,people,have,different,opinionsThey,may,not,agree,with,one,anotherSo,sometimes,its,very,hard,to,make,a,decision,and,to,make,a,changeFor,example，we,know,that,coal,is,a,valuable,resource,that,can,be,used,to,produce,energy，but,it,also,causes,serious,pollutionWhat,should,we,do,with,it?,(Ss,may,have,various,answers),You,see，,you,dont,agree,with,each,otherNow，we,need,to,have,a,meeting,to,discuss,this,problem,Please,work,in,groups,of,five,You,should,play,different,roles：,a,businessman,a,scientist.,a,local,citizen，an,environmentalist,and,a,local,leaderDifferent,people,have,different,opinions,(Every,person,has,hisher,own,opinion),Please,discuss,the,issue,first,and,then,the,local,leader,should,summarise,and,make,a,decisionYou,can,have,a,look,at,the,table,and,the,useful,expressions,in,Speaking,Part,before,you,begin,your,discussionTheyre,very,helpful,(Give,the,students,enough,time,to,have,a,discussion,and,then,ask,the,students,who,play,the,role,of,the,local,leader,to,read,out,their,decisionsCompare,them,and,choose,the,best,decision),Sample,dialogue：,A：Today,we,are,here,to,decide,whether,we,should,burn,the,coalPlease,tell,us,whatever,you,think,B：I,think,we,should,burn,the,coal1f,we,dont,burn,it,now，maybe,it,will,be,useless,in,the,future，,New,energy,wi1l,be,used,instead,of,coal，,such,as,solar,energy,C：But,burning,coal,causes,too,much,pollution,to,our,environment1t,pollutes,the,air,badly.,If,nothing,is,done,to,stop,its,pollution,to,our,earth，then,we,will,Have,no,fresh,air,to,breathe,D：Yes，I,quite,agreeI,think,we,shouldnt,burn,the,coal,now.,It,would,be,better,if,we,spend,more,money,on,science,to,find,a,better,way,of,using,the,coalOnce,we,know,how,to,burn,it,with,out,polluting,the,environment,we,can,make,full,use,of,it,E：That,sounds,quite,reasonable，but,its,clear,that,if,we,want,to,develop,our,area,as,soon,as,possible，we,need,moneyHow,can,we,get,money?,We,can,only,burn,the,coal,to,make,the,factories,work,to,make,moneyIf,we,stop,using,the,coal,now,how,shall,we,continue,our,production,and,development?,A：OKAll,that,you,said,are,reasonableI,believe,that,we,must,try,our,best,to,find,a,better,way,to,use,the,coalMeanwhile,we,must,make,sure,that,the,factories,which,burn,the,coal,take,measures,to,stop,polluting,the,environment,Step,V,Summary,and,Homework,T：,Well,done,After,class，,please,write,down,your,dialogue,in,your,exercise,book,Todayweve,talked,about,our,environmentWe,know,that,there,are,some,big,problems,facing,our,earthWe,must,try,to,do,what,we,can,to,protect,the,earthBesidesweve,practiced,supporting,an,opinionWho,can,come,to,the,blackboard,and,write,down,the,useful,expressions,weve,practiced,just,now?,(A,student,writes,them,down,on,the,blackboardIf,this,student,cant,write,all,of,them，,the,teacher,may,ask,another,student,to,write,the,other,expressions),T:,Very,goodAfter,class,you,need,practise,more,to,master,them,better。Thats,a11,for,todaySee,you,tomorrow!,S,s,：Se,you,tomorrow!,St,ep VI The Design of the Writing on the Blackboard,Unit,9,Saving,the,earth,The,First,Period,Useful,expressions：,We,must,make,sure,that,Its,clear,that,I,believe,that,we,must,Im,all,for,If,nothing,is,done，then,I,cant,imagine,that,SureCertainlyAbsolutely,It,would,be,better,if,we,Is,there,a,better,way,to,Step,Record,after,Teaching,；, 点刷,POS,机,ael342uip,