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1、中考英語考前閱讀理解強(qiáng)化訓(xùn)練Readingmaterial閱讀理解(一)1.Unlesswespendmoneytospot(認(rèn)出，發(fā)現(xiàn))andpreventasteroids(小行星)now,onemightcrashintoEarthanddestroylifeasweknowit,saysomescientists.Asteroidsarebiggerversionsofthemeteoroids(流星體)thatraceacrossthenightsky.MostorbitthesunfarfromEarthanddon’tthreatenus.Buttherear
2、ealsothousandsofasteroidswhoseorbitsputthemonacollisioncoursewithEarth.But$500millionworthofnewtelescopesrightnow,thenspend$10millionayearforthenext25yearstolocatemostofthespacerocks.Bythetimewespotafatalone,thescientistssay,we’llhaveawaytochangeitscourse.Isitworthit?Twothingsexpertsconsid
3、erwhenjudginganyriskare(i)Howlikelytheeventis;(2)Howbadtheconsequencesiftheeventoccurs.ExpertsthinkanasteroidbigenoughtodestroylotsoflifemightstrikeEarthonceevery500,000years.Soundsprettyrarebutifonedidfall.Itwouldbetheendoftheworld.“Ifwedon’ttakecareofthesebidasteroids,they’lltakecareofus
4、,”saysonescientist.“it’sthatsimple.”Thecure,though,mightbeworsethanthedisease.Dowereallywantfleets(艦隊(duì)，車隊(duì))ofnuclearweaponssittingaroundonEarth?“theworldhaslessfearfromdoomsday(毀滅性)rocksthanfromagreatnuclearfleetsetagainstthem.”SaidaNewYorkTimesarticle.1.Whatdoesthepassagesayaboutasteroidsan
5、dmeteoroids?A.Theyareheavenlybodiesdifferentincomposition.B.Theyareheavenlybodiessimilarinnature.C.Theyaremoreasteroidsthanmeteoroids.D.Asteroidsaremoremysteriousthanmeteoroids.2.WhatdoscientistssayaboutthecollisionofanasteroidwithEarth?A.Itisveryunlikelybutthedangerexists.B.Suchacollision
6、mightoccuronceevery25years.C.CollisionsofsmallerasteroidswithEarthoccurmoreoftenthanexpected.D.It’sstilltooearlytosaywhethersuchacollisionmightoccur.3.Whatdopeoplethinkofthesuggestionofusingnuclearweaponstoalterthecourseofasteroids?A.Itsoundspracticalbutitmaynotsolvetheproblem.B.Itmaycreat
7、emoreproblemsthanitmightsolve.C.ItisawasteofmoneybecauseacollisionofasteroidswithEarthisveryunlikely.D.Furtherresearchshouldbedonebeforeitisprovedapplicable.1.Wecanconcludefromthepassagethat__A.Whilepushingasteroidsoffcoursenuclearweaponswoulddestroytheworld.B
