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  Twooutofeveryfivespeciesontheplanetthathavebeenestimatedbyscientistsfaceextinction.ThisfigurecomesfromthelatestWorldConservationUnionRedListofEndangeredSpeciespublishedthisweek.Ina

  Twooutofeveryfivespeciesontheplanetthathavebeenestimatedbyscientistsfaceextinction.ThisfigurecomesfromthelatestWorldConservationUnionRedListofEndangeredSpeciespublishedthisweek.

  Inall16119animalandplantspeciesareindangerofextinction.“Fromthepoles(地球的两个极点)tothedesertspecieslossisincreasingnotslowingdown”saysIUCNdirector-generalAchimSteiner.Themaincauseaseverispeoplebothdirectlyandindirectly.Whilehuntingandhabitat(栖息地)losscontinuetohaveaseriouseffectonspeciesnumbersglobalwarmingisanotherthreat.

  Inthepolarregions(极地),thesummerseaicethatpolarbearsdependonisrapidlydisappearingandthelatestestimatessuggestthattheicewillbereducedatleastbyfiftypercentinareaoverthenextcentury.AlthoughpolarbearsarestrongswimmersyetlargenumbersofthemwillstarveordrownasglobalwarmingmeltstheArctic’sicesheets.Theworld’sdesertsmaybeexpandingbuttheanimalsthatliveinandaroundthemarenotfaringwell.It’sparticularlydifficultfortheendangeredspeciesoftheextremehabitattorecovertheirnumbers.Meanwhileourincreasingdemandforfishandwaterisplacingthespeciesinriversandoceansingreatdanger.Asshallow-waterfishstocksgetreducedfishermen’sdroppingnetsandlinesintodeeperwatersaretakingtheirtollonspeciesthere.

  “Thistrendcan’tbestopped.Environmentalistsalonecannotsavetheworld’sspeciesindanger”saysSteiner“butconservation(保护)canwork.Itmustbecometheresponsibilityofeveryonetoact”.

  1Allthefollowingstatementsarethecausesofanimalextinctionexcept______.

   A.huntingandhabitatloss

   B.increasingdemandforfishandwater

   C.theexpandingofworld’sdeserts

   D.globalwarming

  2.AccordingtothepassagewhichoffollowingstatementsisTRUE?

   A.Onlythespeciesofthepolesanddesertsarefacingextinction.

   B.Asaresultoftheglobewarmingpolarbearswillgetmorefood.

   C.Fishermen’sfishingindeepoceansincreasesthetollofspecies.

   D.Itwillnottakealongtimeforspeciesofextremehabitattorecovertheirnumber.

  3.What’sthebesttitleofthepassage?

   A.SeriousEffectsofGlobalWa

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2020-12-0817:49
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卢晓军

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2020-12-08 17:54:43
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