专题限时训练(三十四)[史地自然型阅读理解(一)](限时:25分钟)(一)ThePacificislandnationofNauruusedtobeabeautifulplace.Nowitisanecologicaldisasterarea.Nauru'sheartbreakingstorycouldhaveonegoodconsequence—othercountriesmightlearnfromitsmistakes.Forthousandsofyears,PolynesianpeoplelivedintheremoteislandofNauru,farfromwesterncivilization.ThefirstEuropeantoarrivewasJohnFearnin1798.HewastheBritishcaptainoftheHunter,awhalingship.HecalledtheislandPleasantIsland.However,becauseitwasveryremote,NauruhadlittlecommunicationwithEuropeansatfirst.Thewhalingshipsandothertradersbegantovisit,bringinggunsandalcohol.Theseelementsdestroyedthesocialbalanceofthetwelvefamilygroupsontheisland.Atenyearcivilwarstarted,whichreducedthepopulationfrom1,400to900.Nauru'srealtroublesbeganin1899whenaBritishminingcompanydiscoveredphosphate(磷酸盐)ontheisland.Infact,itfoundthattheislandofNauruwasnearlyallphosphate,whichwasaveryimportantfertilizerforfarming.Thecompanybeganminingthephosphate.Aphosphateminewasnotaholeintheground;itwasastripmine.Whenacompanystripmined,itremovedthetoplayerofsoil.Thenittookawaythematerialitwanted.Stripminingtotallydestroyedtheland.Gradually,thelovelyislandofNaurustartedtolooklikethemoon.In1968,Naurubecameoneoftherichestcountriesintheworld.Everyyearthegovernmentreceivedmillionsandmillionsofdollarsforitsphosphate.Unfortunately,theleadersinvestedthemoneyunwiselyandlostmillionsofdollars.Inaddition,theyusedmillionsmoredollarsforpersonalexpenses.Soonpeoplerealizedthattheyhadaterribleproblem—theirphosphatewasrunningout.Ninetypercentoftheirislandwasdestroyedandtheyhadnothing.By2000,Nauruwasfinanciallyruined.Expertssaythatitwouldtakeapproximately$433,600,000andmorethan20yearstorepairtheisland.Thiswillprobablyneverhappen.1.Whatmightbetheauthor'spurposeinwritingthetext?A.ToseekhelpforNauru'sproblems.B.Togiveawarningtoothercountries.C.Toshowtheimportanceofmoney.D.Totellaheartbreakingstoryofawar.2.WhatwasNaurulikebeforetheEuropeanscame?A.Richandpowerful.B.Modernandopen.C.Peacefulandattractive.D.Greedyandaggressive.3.TheecologicaldisasterinNaururesultedfrom________.A.soilpollutionB.phosphateoverminingC.farmingactivityD.whalehunting4.WhichofthefollowingwasacauseofNauru'sfinancialproblem?A.Itsleadersmisusedthemoney.B.Itspenttoomuchrepairingtheisland.C.Itsphosphateminingcostmuchmoney.D.Itlostmillionsofdollarsinthecivilwar.5.WhatcanwelearnaboutNaurufromthelastparagraph?A.Theecologicaldamageisdifficulttorepair.B.Theleaderswilltaketheexperts'wordsseriously.C.TheislandwasabandonedbytheNauruans.D.Thephosphateminesweredestroyed.(二)Squirrelsoftencommunicatewithwhistles,chirpsandchucks,whichsoundliketheword“chuck”.Whistlesandchirpsarelikethesoundsthatmanybirdsmake.Nowscientistshavetranslatedsomeoftheirsquirrelspeak.Hare,aprofessorofzoologyattheUniversityofManilohainWinnipeg,andhisteammanagedtorecordsquirrels'alarmcalls.Theresearchersstudiedthesoundsandthenplayedthembackto60wildsquirrels,whichthescientistsapproachedindividuallywithavideorecordertocapture(抓拍)theirresponses.Somesquirrelsliftedtheirheadsupandbecamealert(警惕的).Creaturesthatweremorefrightenedsimplyranfortheirlivesanddivedintocaves.“Ineffectthen,whistlesthatmixwithchuckssay‘there'sanenemyofaveragethreatthat'shere’,andwhistleswithoutchuckssay‘there'sanenemyofseeminglyaveragethreataroundheresome...