unit6-pollution-fighters.ppt

Chapter6Reading,顾秀云,Pollutionfighters,Period1,pollution,thebestpollutionfighters,Trees,pollutionfightersbeinterestedinthebiggestandoldestlivingthingsmakesb./sth.+adj.ontheendofbreathepureandcoolairthankfortakefromharmfulgasreleaseinto,1.污染斗士2.对有兴趣3.最大最古老的生物4.使某人某物5.在末端6.呼吸纯净凉爽的空气7.因而感谢8.吸收，拿走9.有害气体10.释放,【Pre-reading】,11.1.5公顷12.保持某人某物13.也，和，不但而且14.通过（方式）保护15.连接到一起16.与交流17.互相18.处于危险19.砍伐20.对抗污染的最强力量,oneandahalfhectareskeepsb./sth.+adj.aswellasprotectbyjointogethercommunicatewithoneanother=eachotherbeindangercutdownthebestfightersagainstpollution,【Extensivereading】,Q1Whoaretalking?,Q2Whataretheydoing?,Q3Whataretheytalkingabout?,Q4WhatisDoctorRay?,Q5Whatarethebestpollutionfighters?,PS:Cantreescommunicatewitheachother?,【Intensivereading】,Judyhasdrawnagraphabouttheirinterview.Trytofillintheblanks,trees,pollutionfighters,naturalairconditioners,streets,_and_,morebeautiful,lessnoisy,pencil,bench,rubber,paper,fruit,nuts,beans,comefromtrees,streets,air,_theair,_theair,_theair,_theair,takeharmfulgasfrom,releaseoxygeninto,cool,clean,Whatelsedoweknowaboutthetreesfromtheinterview?,ReadtheparagraphThankyou,Judybutwedontknowhow.Discusswithyourgroupmembers.Thenaskandanswerlikethis:S1:Whatelsedoyouknowabouttrees?S2:Theycan,Whatisthepresentsituationoftrees?,Wecutdownandburnmillionseveryyearbutwereplacehardlyanyofthem.,almostnoneofthem,Theyareindangernow!,知识链接,目前我国森林资源面临巨大危机，海南岛热带雨林在过去40年中由1300万亩，减至367万亩。我国宝贵的原始森林长期受到乱砍滥伐，毁林开荒，森林火灾以及病虫害的破坏，原始林每年减少5000平方公里,据联合国粮农组织估计，由于砍伐热带雨林，每年向大气层多释放15亿吨的二氧化碳,植树节每年的3月12日Tree-plantingDay/ArborDay,而日本的国内森林覆盖率近64%,是世界上森林覆盖率最高的国家之一,中国森林覆盖率18.2%，只有全球平均水平的2/3，排在世界第139位,我国是1979年开始有植树节的，今年是第33个植树节,凡是条件具备的地方，年满11岁的中华人民共和国公民，除老弱病残者外，每人每年义务植树3棵至5棵,Discussion,Whatshouldyoudo?,Letsplanttreestogethertoday!,【Treasurehunting】,3trees=15airconditioners,so10trees=?,给出一个树木相互交流的例子？,树木怎么保护他们自己不受害虫的伤害？,树木怎么传递水和养分？,树对空气有哪两个主要作用呢？,Findthefacts（TrueorFalse）,competition,对有兴趣,makesb./sth.+adj.,communicatewith,污染斗士,在末端,有害气体,beinterestedin,thankfor,吸收，拿走,释放,cutdown,连到一起,互相,砍伐,处于危险,与交流,protectby,jointogether,beindanger,breathepureandcoo