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1、Unit4WildlifeprotectionPeriod1WarmingUp&Reading课后阅读训练Ⅰ.阅读理解AWhatdothefollowinganimalshaveincommon?Pandas,rhinoceros,Mexicanburrowingsnakes,pinkpigeonsandsmalltoothsawfish.Theyareallendangeredanimals!Animalsbecomeendangeredforavarietyofreasons.Sadly,humansarebehindeveryoneofthem!Forcenturies,humansha
2、vehuntedelephantsfortheirtusks,andkilledtigersfortheirbeautifulfurs,caughtfishforfood.Whilewestillhaveelephants,tigers,andfishinthewild,wecannotsaythesameaboutmanyothersthathavesimplydiedout!Year1505wasadreadfulturningpointinthenaturalhistoryoftheislandofMauritius—Europeansailorsdiscoveredthisbeauti
3、fulislandintheIndianOceanandbroughtdogs,pigs,monkeyswiththem.Thearrivalofhumansandthoseintroducedanimalspecieswerebadnewsfordodobirds.About50poundsandflightless,dodobirdsdidnothaveanynaturalenemiesuntilthen.Theypickedfruitsfallenfromtreesandbuilttheirnestsontheground.ShortlyafterhumanssetfootonMauri
4、tius,however,dodobirdsrealizedthattheywereinbigtrouble—menkilledthemfortheirmeat,andthoseintroducedanimalspeciesdestroyedtheirnestsandatetheireggs.Theeffectsofexcessive(过度的)huntingandforeignspeciesdrovedodobirdstofirstbecomemuchfewerandthendieout.Thelastdodobirdwaskilledin1681.Humansandanimalshaveal
5、wayscompetedforlandandothernaturalresources.Weclearanareaofaforestforfarming.Wecutdowntreesandusewoodtobuildbeautifulhouses.Webuildreservoirs(水库)tomakesurethatwehaveenoughwatertouse.Atthesametimethatwearetryingtomakeourlifecomfortable,wedestroythehabitatsofwildanimals.Morethanoncewehaveseenontelevis
6、ionthatrescueworkersaretryingtheirbesttosaveseabirdsinspilled(泄漏的)oil.Morethanoncewehaveheardabouthowemissionsofcarbondioxide(二氧化碳的排放)andothergaseshaveraisedtheEarthtemperatureandcausedglobalwarming.Pollutionhasaseriousandlong-lastingeffect.IfwechoosetodonothingandcontinuetopolluteourplanetEarth,our
7、nextgenerationswillhavetofaceanEarthwithoutbirdssinging-7-andbeastsroaring.【语篇概述】本文主要介绍了导致许多动物灭绝的原因,我们人类应该保护野生动物,保护地球。1.Howmanyreasonsaregivenbytheauthortoexplainwhytheanimalsbecomeendangered?A.3.
