八年级英语下册：Chapter 3 Environment the 2nd period课件深圳牛津版.ppt

welcometomyclass bymisslu chapter3environment the2ndperiod watchavideo isthemaninawaterworld 2 whatmakestheworldawaterworld oraldiscussion fivechallenges挑战today let sseewhichgroupcanmakeearthmorebeautiful challenge1 挑战第一关 twoenvironmental 环境的 problemsarementionedinthetext whatarethey thegreenhouseeffect destructionofrainforest thefirstproblem thegreenhouseeffect brainstorming isthegreenhouseeffectimportantorharmful thegreenhouseeffectisimportant thegreenhouseeffectcanbeveryharmful let stalkaboutthegreenhouseeffect thetroubleis thiswillcause atmospheresunlightwarmthwithoutit youdidverywell challenge2 挑战第二关 anothervideoforyou 1 whatcanyouseeinthevideo 2 whatisitabout oraldiscussion thesecondproblem destructionofrainforest whatcantreesdoforus treescantakeinharmfulgasesandholdsoiltogether whatmayhappeniftreesarecutdown itmaycauseflood flood floodmaydrown congratulations youpass2challenges challenge3 挑战第三关 whatcausetheenvironmentalproblems canyoutellmesomebadhabitsthatpollutestheenvironment plasticbags bottles chopsticks peopleusethingsonlyonceandthenthrowthemaway theyarenotenvironmentallyfriendly 环保的 thiscreatesmountainsof 许多 rubbishanditpollutesourlandandseas whatwillhappen youaresoclever challenge4 挑战第四关 finishasurveyinagroupofthreeandreporttheresultsinpairs groupwork greenconsumers survey a whataretheenvironmentalproblems b theenvironmentalproblemsare a whatcausetheproblems b a howcanwesaveearth b tosaveearth challenge5 挑战第五关 let sseewhocanwin dameisha happyvalley mangrove 红树林 shennanroad wutongmountain oct east shenzhenisabeautifulcity airpollution waterpollution noisepollution whitepollution showtime asgreenconsumers howcanwemakeshenzhenmorebeautiful trytowritedownyourideasontheposter 海报 andthenshowittous groupwork let sbecomegreenconsumersinourdailylife wehaveonlyoneearth inthisclass isthebest congratulations 1 listentothetapeandreadthearticle trytoimitateth