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ID:24778462
大小:6.31 MB
页数:19页
时间:2018-11-15
《濒临灭绝的动物英语》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Doyoulikeanimals?Havealook~~Whatdoyouthink?Theyarereallylovely!Butunfortunately,theyareallendangeredanimal.Thetwelvemostendangeredanimalspecies古巴鳄(Cubancrocodile)佛罗里达戴帽蝙蝠(Floridabonnetedbat)绿眼蛙(GreenFrog)格林纳达鸽(Grenadadove)亨氏羚羊(Heinzantelope)犁头龟(Ploughsharetortoise)苏门答腊猩猩(SumatranOrangutan)岛屿
2、灰狐(Urocyonlittoralis)白头叶猴Whiteheadedleafmonkey小头鼠海豚PhocoenasinusNorris普氏野马(Equusprzewalskii)罗默小树蛙(Luo'streefrog)Thereareover5000Vertebrate(脊椎动物)animalsarethreatenedorendangered.Manythingscancauseanimalstobecomethreatenedorendangered;Mostproblemsarecausedby……FollowingaresomemajorPROBLEMS:First
3、Problems:habitatlossHabitatistheecosystem(生态系统)ofanimals,theyneedtoliveinproperplace,suchasswamp,rainforest,desert,etc.Humanreplacetheanimalhabitats,itcouldcauseanextensivelossofrangesforanimals.SecondProblem:pollutionCommercialandindustrialoperationscanreducelandandpolluteenvironment.Airpollu
4、tionWaterpollutionThirdFactor:predationorillegalkillingPredationmakesanimalsbecomeendangeredisover-fishingorover-hunting.ForthFactor:introductionanimalManyrarityanimalsareintroducedbypeopletoareaswheretheyneverexistedbefore.Theintroductionofanon-nativespeciestoahabitatmaymakeanimalsbecomeendan
5、gered.许多稀有的动物被人们引进到他们从未生存过的地方,引进一个非本地物种到一个栖息地可能使动物濒临灭绝。FifthFactor:diseaseIntroducedanimalsbringnewdiseaseswiththem,becomesanotherreasonofwhyareanimalsendangered.Thenativeanimalscan’tresistance(抵抗)tonon-nativediseases.Anothercauseofdiseaseischemicals.Somechemicalsdirecteffectonsomeanimal’spopu
6、lation.What’syourfeelingnow?Doyouwanttheselovelyanimalslive?Wehavetoknowthatwhenanimalsbecomeendangered,theentirefoodchaincanbeaffected.ThesefivemajorPROBLEMSareallcausedbyHUMANS!!So!!Please!!Helptheendangeredanimals,helpourselves,helptheworld!
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