unit6pollutionfighters市公开课一等奖省赛课微课金奖课件

Chapter6Reading顾秀云PollutionfightersPeriod11/222/223/22pollution4/22thebestpollutionfighters

Trees5/22pollutionfightersbeinterestedinthebiggestandoldestlivingthingsmakesb./sth.+adj.ontheendofbreathepureandcoolairthank……for……take…from…harmfulgasrelease…into…1.污染斗士2.对……有兴趣3.最大最古老生物4.使某人某物……5.在……末端6.呼吸纯净清凉空气7.因……而感激……8.吸收，拿走9.有害气体10.释放【Pre-reading】6/2211.1.5公顷12.保持某人某物……13.也，和，不但而且14.经过（方式）保护15.连接到一起16.与……交流17.相互18.处于危险19.砍伐20.反抗污染最强力量oneandahalfhectareskeepsb./sth.+adj.aswellasprotectbyjoin……togethercommunicatewithoneanother=eachotherbeindangercutdownthebestfightersagainstpollution7/22【Extensivereading】Q1Whoaretalking?Q2Whataretheydoing?Q3Whataretheytalkingabout?Q4WhatisDoctorRay?Q5Whatarethebestpollutionfighters?PS:Cantreescommunicatewitheachother?8/22【Intensivereading】Judyhasdrawnagraphabouttheirinterview.Trytofillintheblanks9/22treespollutionfightersnaturalairconditionersstreets____________and_____________morebeautifullessnoisypencilbenchrubberpaperfruitnutsbeanscomefromtreesstreetsair__________________theair______________theair______theair______theairtakeharmfulgasfromreleaseoxygenintocoolclean10/22Whatelsedoweknowaboutthetreesfromtheinterview?Readtheparagraph‘Thankyou,Judy……butwedon’tknowhow.’.Discusswithyourgroupmembers.Thenaskandanswerlikethis:S1:Whatelsedoyouknowabouttrees?S2:Theycan…………11/22Whatisthepresentsituationoftrees?12/22Wecutdownandburnmillionseveryyearbutwereplacehardlyanyofthem.almostnoneofthem13/22Theyareindangernow!!!!!!知识链接

14/22当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。我国宝贵原始森林长久受到乱砍滥伐，毁林垦荒，森林火灾以及病虫害破坏，原始林每年降低5000平方公里据联合国粮农组织预计，因为砍伐热带雨林，每年向大气层多释放15亿吨二氧化碳15/22植树节每年3月12日Tree-plantingDay/ArborDay而日本国内森林覆盖率近64%,是世界上森林覆盖率最高国家之一中国森林覆盖率18.2%，只有全球平均水平2/3，排在世界第139位我国是1979年开始有植树节，今年是第33个植树节凡是条件具备地方，年满11岁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16/22DiscussionWhatshouldyoudo?Let'splanttreestogethertoday!17/221234【Treasurehunting】3trees=15airconditioners,so10trees=?给出一个树木相互交流例子？树木怎么保护他们自己不受害虫伤害？树木怎么传递水和养分？5树对空气有哪两个主要作用呢？18/22Findthefacts（TrueorFalse）19/22competition20/22对…有兴趣makesb./sth.+adj.communicatewith污染斗士在…末端有害气体beinterestedinthank…for…吸收，拿走释放cutdown连到一起相互砍伐处于危险与…交流protectbyjoin……togetherbeindangerbreathepurea