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1、北师大高一必修3Unit7Lesson2Unit7TheSeaProtectingtheSeaLet’senjoythewonderfulseaanditsrichrecourses.thepureandbeautifulseaHowever,doyouknowhowabouttheseaisnow?DirtyPollutedTheseaisbeingillnow.Itisbadlypolluted.Oilandpetrolpollutedthesea.Seapollutioncausedfishandseaanima
2、lstodie.Howistheseaimportanttopeople?Peoplecangetseafoodsuchasfish,seaanimalsandplants.Theseaisrichinmanynaturalresources.Wecangetoil,naturalgasandsomemetals,besides,theseahasagreateffectonclimateontheearth.Japaneseshipsarekillingthewhale.Howcrueltheyare!!!These
3、aisimportanttous.Butwiththedevelopmentofsociety,humanbeingsexploreandseizetheseawithoutlimit,asaresult,doharmtothesea.Harvestfishnow,whataboutthefuture?over-fishingWhathappened?Theoiltankerwasupset,oilpouredintothesea.Whatistheresult?Whocansavethepoorbirds?In198
4、9anoiltankerhitarockoffthenorthwestcoastofAlaska.35,000tonsofoilpouredintothesea.Theaccidentwasoneoftheworstinhistory.Morethan34,000birdsand10,000animalswerekilled.4,800squarekilometersofoceanwerepolluted.industrialwasteTheSeaisweeping.Whatwillhappen?Istherenoth
5、ingwithus?redtideChinahasbeenexperiencingincreasingredtidesofftheChinesecoastsincethe1990sduetoincreasingpollutioncausedbyindustrialwaste.Accordingtoanofficialreport,duringthepast20years,atotalof200redtideshavebeenregistered(经正式鉴定的)causing240millionU.S.dollarsin
6、directeconomiclosses.The45majorredtidesoccurredintheBohaiSea,theYellowSea,theEastChinaSeaandtheSouthChinaSea.About4billiontonsofindustrialwastewateraredischarged（排放）intotheseaeveryyear,resultingintheaccumulation（积累）oforganicpollutantsblamed(归咎于有机污染物)forthegrowin
7、goutbreaksofdisastrousredtides.Redtidesmayalsodestroymarinelives(海洋生物)andbringharmtomarinecultivationindustries(海洋养殖业).1.Youarelikelytonoticesomethingaboutseapollutioninyourcityorhometown.Pleasetalkaboutit.2.Ifwegoonpollutingtheseawhatistheresult?Ifthegovernment
8、goonallowingtheindustrialwastefromfactoriestopourintotheseaandrivers,itisnotsafetoeatthefish.Ifwegoonpouringtherubbishintothesea,itisnolongersafeforswimming,asalotofd
