學高中英語 unit 4 Astronomy：the science of the stars綜合技能訓練 新人教版必修3

【成才之路】-學年高中英語unit4Astronomy：thescienceofthestars綜合技能訓練新人教版必修3時間：90分鐘，滿分：100分Ⅰ.單項填空(共15小題；每小題1分，滿分15分)從A、B、C和D四個選項中選出可以填入空白處的最佳選項。1．Becauseofthedryweather,fires________inmanyplacesrecently.A．havebrokenaway B．havebrokendownC．havebrokenout D．havebrokenin答案：C句意：由于天氣干燥，近來很多地方發(fā)生了火災。breakaway“逃走；逃脫”；breakdown“破壞；拆散”；breakout“戰(zhàn)爭，火災等突然爆發(fā)”；breakin“闖入；強行進入”。結合句意選C。2．________madehersurprisedwas________shereceivedabunchofflowersfornogoodreasonyesterday.A．That;how B．What;thatC．What;what D．That;that答案：B句意：讓她吃驚的是昨天她莫名其妙地收到了一束花。what引導主語從句，并在從句中充當主語；that引導表語從句，在從句中并不充當成分。3．Afterwaterwhichis________tolifeappearedontheearth,lifebegantodevelop.A．interesting B．funnyC．fundamental D．fond答案：C句意：生命存在的基本要素——水，在地球上出現之后，生命開始發(fā)展。befundamentalto對……是基本的。4．Once,there,inthesmallvillage,________abigtreedatingbackto100yearsago.Butnowithasgone.A．happened B．cameC．seemed D．stood答案：D句意：在這個小村莊里曾經有一棵一百多年的大樹。但是現在不見了。happen“發(fā)生”；come“來”；seem似乎；stand“站，矗立”。5．(·西安高一檢測)—Whynotbuythecarsinceyoushowsomuchinterestinit?—ButIamnotabletobuy________.A．soabigcar B．suchbigacarC．sobigacar D．suchbigcar答案：C句意：——既然你對這輛車那么感興趣，為什么不買？——可是我買不起這么大的車。so＋adj.＋a(n)＋n.＝such＋a(n)＋adj.＋n.。故選C。6．Ifwedon'tfollowhisadvice,I'msurewewillregret______.A．ontime B．attimesC．fromtimetotime D．intime答案：D句意：如果我們不采納他的建議，我確信我們遲早會后悔的。ontime按時；attimes時而，不時；fromtimetotime有時，不時地；intime遲早，總有一天。7．Itiswidelyacceptedthatsmokingis________toourhealth.A．harmful B．harmlessC．useful D．helpful答案：A句意：吸煙有害于健康已被廣泛接受。beharmfulto對……有害。harmless無害的；useful有用的；helpful有幫助的。8．(·杭州高一檢測)—Doyouknowthereasonwhyhisparents________himjoininguslastnight?—Ihavenoidea.A．kept B．preventedC．protected D．promised答案：B句意：——你知道昨晚他父母為什么不讓他加入我們嗎？——我不知道。keepsbfromdoingsth結構中from不可省。protect保護；promise答應，而preventsb(from)doingsth阻止某人做某事，符合題意。9．Thebraveman________hisclothesandjumpedintotherivertosavethedrowningboy.A．pulledon B．pulledawayC．pulledin D．pulledoff答案：D句意：那位勇士(匆忙)脫下衣服，跳進河里救那個落水男孩。pulloff“脫掉(衣、帽等)”，符合句意；pullon“穿上(襪子)，戴上(手套)”；pullaway“離開，擺脫”；pullin“(慢慢)駛入”。10．Tryand________abit;lifeisn'tthatbad!A．cheerup B．comeupC．lookup D．putup答案：A句意：試著高興點兒吧，生活并不是那么糟！cheerup“感到高興；感到振奮”，符合題意。comeup“走近；發(fā)芽”；lookup“向上看；查詢；好轉”；putup“舉起；建造”。11．Thehouserentisexpensive.I'vegotabouthalfthespaceIhadathomeandI'mpaying________asthere.A．asthreetimesmuch B．asmuchthreetimesC．muchasthreetimes D．threetimesasmuch答案：D因句中空格后有連詞as，其前必定用原級。根據“倍數＋as＋adj./adv.＋as”結構，可知D項正確。12．________earthquakeshavehappenedoneafteranotherinrecentyears,whichhavecausedgreatdamage.A．Violent B．LightC．Rude D．Heavy答案：A句意：最近幾年，劇烈的地震一個接一個地發(fā)生，造成了嚴重損害。violent猛烈的，狂暴的，劇烈的；light輕的；rude粗暴的；heavy重的。結合句意選A。13．(·福州高一檢測)________youwanttoworkinaforeigncountry,you'dbetterimproveyouroralEnglish.A．Sothat B．NowthatC．Suchthat D．Inorderthat答案：B句意：既然你想去國外工作，你最好提高你的英語口語。sothat因此；nowthat既然；inorderthat為了……，結合句意選B。14．Inordertostopthedriverescapingpunishment,allthemainstreetswere________.A．blockedoff B．blockedoutC．blockedup D．blownup答案：A句意：為了阻止司機逃脫懲罰，所有的主路都被封鎖了。blockoff(用路障)封鎖；blockout擋住(光線)；blockup塞住；blowup爆炸。結合句意選A。15．Whilecrossingthestreet,youshould________forcars.A．watchout B．takeoutC．bringout D．comeout答案：A句意：過馬路時，要留心車。watchout“密切注視；當心；提防”，符合句意。takeout“拿出；取出”；bringout“使顯示；出版；生產”；comeout“出來；長出”。Ⅱ.完形填空(共20小題；每小題1分，滿分20分)閱讀下面短文，理解大意，從題中所給的A、B、C、D四個選項中選出一個最佳答案。Marsisnot,itseems,thedryoldplanetweoncebelieved__16__.Astronautswhoare__17__togothereinthenextdecademayfindplenty__18__watertoslake(消除)theirthirst.Andwithwaterpresentthe__19__offindingsomesortoflifeonMarsare__20__brighter.Thisistheviewoffortygeologistswhohavebeenanalyzing__21__ofpicturesandotherscientific__22__obtainedbyrobotexplorersinthesixtiesandseventies.Tobeginwith,scientiststhoughttheRedplanetwasas__23__astheMoon__24__duststormsswirlingovervastsandy__25__.Butnowthepictureisverydifferent__26__mountainsandvalleyscarvedby__27__glaciersandriversrushingandrumblingdeepunderground.InareportontheanalysisoftheMartianpicturesDr.MichaelCaroftheU．S.GeologicalSurveycomments:“Iamconvinced__28__lotsofwateronMars.”Anysurfacewaterwillbeinthe__29__ofice.Butitcouldsaveexplorersfrom__30__totakesomuch__31__withthem.Thereportsays__32__Marsprobablyhadawarmerclimateinages__33__duetoitsaxis(軸)havingbeenmoretilted(傾斜)towardsthesun.__34__signsofplantoranimallifehavebeendetectedbyinstrumentslandedonMars，__35__thelandingvehicleshavebeensentthereforafewyears.16．A.itis B．itC．ittobe D．was答案：C根據新的資料顯示，火星似乎并不像我們過去認為的那么干燥。it代替前面的專有名詞Mars;tobe為不定式的省略式，其后面省略了dry。不定式的省略式通常省略to后面的成分，但后面為tobe結構時，就要保留be而省略其后面的成分。17．A.expected B．hoped C．required D．sent答案：Aexpectsomebodytodosomething表示“期待某人做某事”。這里用其被動語態(tài)形式：beexpectedtodosth。表示“某人被期待做某事”。18．A.to B．of C．more D．in答案：B此句的“plentyof＝alotof”為固定詞組，意思是“大量；許多；充足”。19．A.chances B．openings C．occasions D．possibility答案：A本句的意思是“由于水的發(fā)現，在火星上面找到某種生命形式的機會就變得更加明朗了”。20．A.quite B．very C．much D．more答案：C此處的much用來修飾比較級，其它選項都不能修飾比較級，但quitebetter除外。21．A.afew B．many C．thousand D．thousands答案：Dthousandsof用復數形式表示不確定的數字，此處意思是“數以千計的”，后接復數名詞；afewof后接“限定詞＋復數名詞”，意思是“某(固定)范圍內的一些”；manyof后接“限定詞＋復數名詞”，意思是“某(固定范圍)內的許多”。22．A.skills B．news C．intelligence D．information答案：D指的是“在六七十年代探測器獲得的其他科學信息(information)”。23．A.peaceful B．quiet C．lifeless D．dead答案：C此句的意思是“剛開始的時候，科學家認為這顆紅色的行星象月球一樣沒有生命(lifeless)”。24．A.of B．with C．for D．through答案：B此處為“with＋名詞/代詞＋不定式、分詞、形容詞、副詞、介詞短語等”構成的復合結構作狀語。25．A.deserts B．mountains C．rivers D．seas答案：A此句意思是“沙暴(duststorms)在廣袤的沙漠(deserts)上旋轉”。26．A.from B．between C．for D．with答案：D注意此題的關鍵是要搞清它不是bedifferentfrom結構，因為此結構后的名詞前要用限定詞，而該空后面的名詞前無限定詞，故可排除。此空與第24空一樣，為“with復合結構”作狀語。27．A.energetic B．great C．heavy D．powerful答案：D這里用powerful形容冰河對山谷沖刷的威力巨大。28．A.there's B．there're C．here's D．here're答案：A此句用的是“therebe”結構，其后面的名詞water(即主語)為不可數名詞，故謂語動詞be用單數形式。29．A.appearance B．way C．form D．shape答案：C詞組intheformof的意思是“以……形式”。此句意思是“任何表面上的水將以冰的形式存在?！?0．A.have B．having C．carry D．carrying答案：Bfrom為介詞，后面接動詞的-ing形式，故可排除A和C兩個選項；本空為haveto結構，意思是“必須；不得不”，所以其后接動詞原形。31．A.water B．ice C．equipment D．oxygen答案：A此句的意思是“水的存在使探險者們不用隨身攜帶大量的水?！?2．A.what B．if C．how D．that答案：D此句意思是“報告說由于火星的軸在過去的歲月中更傾斜于太陽，那時火星的天氣，可能比現在暖和”。此處that引導一個賓語從句，其本身在賓語從句中不充當任何成分，也沒有任何詞匯意義，僅起連接的作用。33．A.pass B．past C．ago D．before答案：B“inagespast”表示“在過去的歲月中”。34．A.Not B．No C．Nor D．Never答案：Bno為形容詞，等于“nota/notany”，表示“沒有”，后接名詞；而not的后面一般接動詞、形容詞或從句等成分。35．A.probably B．perhaps C．supposed D．although答案：Dalthough引導讓步狀語從句，表示“盡管……，但是……。”Ⅲ.閱讀理解(共20小題；每小題2分，滿分40分)閱讀下面的短文，從每題所給的四個選項(A、B、C、D)中，選出最佳選項。AInJuly1994Jupiter,thelargestplanetinoursolarsystem,wasstruckby21piecesofacomet(彗星).Whenthefragments(碎片)landedinthesouthernpartofthegrandplanet,theexplosionswerewatchedbyscientistshereonearth.Butwhatifourownplanetwashitbyacomet?Theyearis2094.Ithadbeenannouncedthatacometisheadingtowardstheearth.Mostofitwillmissourplanet,buttwofragmentswillprobablyhitthesouthernpartoftheearth.Thenewshascausedpanic.On17July,afragmentfourkilometerswideenterstheEarth'satmospherewithahugeexplosion.Abouthalfofthefragmentisdestroyed.ButthemajorpartsurvivesandhitstheSouthAtlanticat200timesthespendofsound.Theseaboilsandanenormouswaveiscreatedandspreads.ThewallofwaterrushestowardssouthernAfricaat800kilometresanhour.CitiesontheAfricancoastaretotallydestroyedandmillionofpeoplearedrowned.ThewavemovesintotheIndianOceanandheadstowardsAsia.Millionsofpeoplearealreadydeadinthesouthernpartoftheearth,butthenorthwon'tescapeforlong.Tonsofbrokenpiecesarethrownintotheatmospherebytheexplosion.Asthesunishiddenbycloudsofdust,temperaturesaroundtheworldfalltoalmostzero.Cropsareruined.Warsbreakoutascountriesfightforfood.Ayearlatercivilizationhascollapsed.Nomorethan10millionpeoplehavesurvived.Coulditreallyhappen?Ithasalreadyhappenedmorethanonceinthehistoryoftheearth.ThedinosaurwereontheEarthforover160millionyears.Then65millionyearsagotheysuddenlydisappeared.ManyscientistsbelievethattheEarthwashitbyaspacefragment.Thedinosaurscouldn'tsurviveinthecoldclimatethatfollowedandtheybecameextinct.Willwemeetthesameend?36．WhichofthefollowingisNOTtrueaccordingtotheauthor'sdescriptionofthedisasterin2094?A．Thewholeworldbecomesextremelycold.B．AllthecoastalcitiesinAfricaaredestroyed.C．Thewholemankindbecomesextinct.D．Thevisitofthecometresultsinwars.答案：C辨別正誤題。據第三自然段的描述可知，A、B、D均符合本文所假想的事實，只有C不符。文中“Nomorethan10millionpeoplehavesurvived”一句意為“只有一千萬人幸存下來”，而C項說全人類都滅絕了。顯然與文章不符。題干要求找出不對的選項。37．Whydoestheauthormentiondinosaursattheendofthepassage?A．Becausetheycouldonlyliveinthewarmclimate.B．Becausetheyoncedominatedtheearth.C．Becausetheirextinctionindicatesfuturedisasters.D．Becausedinosaursandhumansneverliveinthesameage.答案：C推理判斷題。第三段中，作者描述假想的人類災難……最后一段提到生活在地球上的恐龍在65millionyearsago突然消失(即滅絕)，許多科學家相信地球曾受到過外空星體碎片的襲擊，故而導致恐龍絕種。由此暗示人類未來的災難。38．Inwritingthepassage,theauthorintendsto________.A．giveanaccuratedescriptionofthepossibledisasterinthefutureB．provethathumanswillsoonerorlaterbedestroyedC．tellthehistoricaldevelopmentoftheearthD．warnofapossibledisasterinthefuture答案：D觀點態(tài)度題。本題要求考生推測作者意圖。作者通過一段幻想的災難和一段地球歷史上出現過的恐龍絕跡的事實以及科學家們分析恐龍絕跡的原因，來警示人類未來可能發(fā)生的災難。39．Itcanbeconcludedthatthepassageismostprobablypartofa(n)________．A．horrorstoryB．newsreportC．researchpaperD．articleofpopularscience答案：D推理判斷題。據全文大意，又據文章的性質，可判定D為最佳選項。A、B、C均不太妥當。B(·山西省大同高一下學期期中)Satellitesareanimportantpartofourordinarylives.Forexample,theinformationforweatherforecastsissentbysatellite.SomesatelliteshavecameraswhichtakephotographsoftheEarthtoshowhowcloudsaremoving.Satellitesarealsousedtoconnectourinternationalphonecalls.ComputerconnectionsoftheWorldWideWebandInternetalsousesatellites.ManyofourTVprogramscometousthroughsatellites.Airplanepilotsalsosometimesuseasatellitetohelpthemfindtheirexactlocation.Weusesatellitestosendtelevisionpicturesfromonepartoftheworldtoanother.Theyareusually35,880kilometersabovetheequator.Sometimeswecanseeasatelliteintheskyanditseemstostayinthesameplace.Thisisbecauseitismovingaroundtheworldat11,000kilometersanhour—exactlythesamespeedthattheearthrotates.AsatellitemustorbittheEarthwithitsantennae(天線)facingtheearth.Sometimes,itmovesawayfromitsorbit.Sotherearelittlerocketsonitwhichareusedtoputthesatellitebackintherightposition.Thisusuallyhappensabouteveryfiveorsixdays.Spaceisnotempty!Everyweek,moreandmoresatellitesaresentintospacetoorbittheEarth.Asatelliteusuallyworksforabout10－12years.SatelliteswhicharebrokenaresometimesrepairedbyastronautsorsometimesbroughtbacktoEarthtoberepaired.Often,veryoldorbrokensatellitesareleftinspacetoorbittheEarthforaverylongtime.Thisisveryseriousbecausesomesatellitesusenuclearpowerandtheycancrashintoeachother.40．WhichofthefollowingisNOTdonebysatellitesaccordingtothepassage?A．Sendinginformationforweatherforecast.B．TakingphotographsoftheEarth.C．SendingTVpictures.D．Providingfoodforairplanepilots.答案：D從第一段可知，A、B項的內容都是衛(wèi)星的功能，從第三段可知，衛(wèi)星還可以發(fā)送電視畫面，而D項內容文中并未提及。41．What'sthespeedtheearthrotatesat?A．35,880kilometersperhour.B．335,880kilometersperhour.C．11,000kilometersperhour.D．110,000kilometersperhour.答案：C從第三段的Thisisbecauseitismovingaroundtheworldat11,000kilometersanhour—exactlythesamespeedthattheearthrotates.可知C項為正確答案。42．Whatdoestheunderlinedword“This”inthe3rdparagraphreferto?A．Asatellite.B．Alittlerocket.C．Asatelliteseemstostayinthesameplaceinthesky.D．Thesatelliteputstherocketsintherightposition.答案：C上一句話的意思是：有時候我們看到天空中的衛(wèi)星好像呆在同一個地方，這是因為……，故本題答案為C。43．Whichistrueofsatellites?A．Asatelliteusuallyworksforabout10－12years.B．Everytimeasatellitegetsbroken,itisbroughtbacktotheEarthtoberepaired.C．Abrokensatelliteisneverleftinspace.D．Theyoftencrashintoeachother.答案：A從最后一段的第三句話可知A項正確。CBrianarrivedattheSanFranciscoairporttwohoursbeforetheflighttoParis.Hewaswearingthreeshirts,ajacket，twopairsofsocks，apairofshorts,andtwopairsofjeans.Hewascarryingonesmallbackpack，whichwasveryfull,buthedidn'thaveanyotherluggage.BrianneededtomeetamannamedTonybeforehecheckedinforhisflight.HefoundTonyneartheAirFrancecounter.Tonygavehimaround-tripticketandasmallpackage.“GivethispackagetoJeanPaulattheairportinParis.Hewillhaveasignwithyournameonit.Ithinkyoucanfindhimeasily，”Tonysaid，“Youdon'thaveanyluggage,right？”“Onlythisbackpack，”Briananswered，“YousaidIcouldbringonecarry-onbag.”“That'sright.Onecarry-onbagisfine.Haveagoodtrip.”“Thanks.”IsBrianacriminal?Notatall.Heisanair-courier.Andhepaidonly$110fortheround-triptickettoParis.Air-couriersgetcheapairlineticketsbecausetheytakeimportantpackagesandpaperstoforeigncountries.Businessessometimesneedtogetpackagesandpaperstopeopleinforeigncountriesbythenextday.Often，theonlywaytheycandothisistouseanaircouriercompany.Itisnotcheapforabusinesstosendapackagewithanair-courier，butitisquick.Everyyearabout80,000peopleworldwidetravelasaircouriers.Thenumberofticketsforcouriertravelisgrowingbyabout10percentayear.However,air-couriertravelisn'tforeveryone.Butifyouhaveverylittlemoney，canbeflexibleaboutyourtravelplans，anddon'tmindwearingthesameclothesforaweek，itcanbeagreatwaytotakeavacation!文章大意：文章主要講述了利用航空快遞的利與弊。44．WhywasBrianwearingsomanyclothesforhistravel?A．Becausetheyweretheuniformsforair-couriers.B．Becausethatmadehimeasiertoberecognized.C．Becausehewouldbechargedfortakingmuchluggagewithhim.D．Becausehewasrequirednottohavemuchluggagewithhim.答案：D細節(jié)理解題。由第三段“Onlythisbackpack，”Briananswered,“YousaidIcouldbringonecarry-onbag.”可知，Brian只被允許帶一個背包。45．WhowasTony?A．Hemightbeanair-couriercompanyclerk.B．Hemightbeaguardattheairport.C．HemightbeBrian'sfriend.D．Hemightbeacustomsofficial.答案：A細節(jié)理解題。根據第一段中“Tonygavehimaround-tripticketandasmallpackage.托尼給了他(Brian)一張往返的機票及一個小包裹”，以及結合下文可知，Tony可能是一位航空快遞公司的業(yè)務員。46．Businesseschoosetheair-courierservicebecause________.A．itcostsless B．itisflexibleC．itgrowsfast D．itsavestime答案：D細節(jié)理解題。從倒數第二段最后一句“Itisnotcheapforabusinesstosendapackagewithanair-courier，butitisquick.用航空快遞投遞包裹不便宜但是它迅速。”可知選D。47．Air-couriertravelisagoodchoiceforthosewho______.A．havemuchmoneyB．hatewearingthesameclothesC．havemuchpersonalluggageD．areflexibleabouttheirtravelplans答案：D細節(jié)理解題。根據最后一段最后兩句話可知“航空快遞旅行并不是適合每一個人。它主要面向那些錢少，旅行計劃比較靈活的游客”，故選D。DThejourneytothemoonhasbeenthefirststeptowardsfutureexplorationinspace.ThedistancebetweentheMoonandEarthisveryshortindeedwhencomparedwiththedistancesbetweenEarthandtheotherplanets.Mars,thenearestplanettoEarthismillionsofmilesaway!Travelingtotheplanetswillbeman'snextaim.Suchtravelswillbemorechallengingthanthetriptothemoonandcertainlymoreadventurous.Recently,twoAmericanspaceships,Vikings1and2,landedonMarstryingtodiscoverwhetherthatplanethasanylifeonit.SofarthesignsoflifeonMarshasneitherconfirmed(確認)norruledout.RussianshavediscoveredthatthesurfaceofVenus(金星)issohotthatitisalmostcertainthatthereisnolifethere.AlsotheatmosphereofVenusisextremelydense(稠)andthepressureisnearlyahundredtimesgreaterthanthatoftheEarth'satmosphere.Scientistsbelievemanmayfindplanetswhichhavethesameconditionsasthosewehaveonearth,butmanshouldrealizeEarthwillbehisonlyhomeforalongtimeandbegintoloveandcareforit.48．Accordingtothepassage,travelingtotheplanetswillbe________.A．mucheasierandevenmoreinterestingB．farmoreexcitinganddangerousC．man'sfinalaimD．man'sfirststep答案：B細節(jié)理解題。由文章第一段告訴我們人類向其他行星探索的行動將比去月球探索更加具有挑戰(zhàn)性和冒險性。49．Fromthepassage,wecanguess________.A．thereislifeonMarsB．thereisnolifeonMarsC．TheatmosphereofMarsisnotsodenseasthatofVenusD．scientistswillhavelittlehopetofindtheanswers答案：C推理判斷題。由文中第二段第二句告訴我們，火星上是否有生命還不能確認，所以A、B排除。根據文章最后一段第一句可知：科學家相信人類能找到像我們地球上生存條件一樣的行星。所以可以排除D。50．Scientiststhinkweshouldtakecareofourearthbecause________.A．nootherplanetsaretotaketheplaceoftheearthB．everythingneededisprovidedbytheearthC．theonlyhomeofmanwillbetheearthforalongtimeD．thedreamtofindanotherhomeformanwillcometrue答案：C細節(jié)理解題。最后一段講明人類必須保護地球。根本原因在于人類在近期內無法找到能夠和地球的生存常規(guī)交叉相提并論的星球，所以地球在很長時間內依然是人類賴以生存的家園。E(·天津)Lastnight'smeteor(流星)showerleftmanypeopleinthecommunitydissatisfiedanddemandinganswers.AccordingtoGabeRothschild,Emerald“Myfamilywassofrustrated，”admittedtownresidentDuaneCosby,“Wewantedtomakethisanunforgettablefamilyouting,butitturnedouttobeahugedisappointment.”Astronomers—scientistswhostudystarsandplanets—havebeencomplainingaboutthisproblemfordecades.Theysaythatlightpollutionpreventsthemfromseeingobjectsintheskythattheycouldseequiteeasilyinthepast.Theycallonpeopleandthegovernmenttotakemeasurestofightagainstit.Thereisyetapopulationbesidesprofessionalandamateurstarobserversthatsuffersevenmorefromlightpollution.Thispopulationconsistsofbirds,bats,frogs,snakes,etc.Forexample,outdoorlightingseverelyaffectsmigrating(遷徙的)birds.AccordingtotheInternationalDark-SkyAssociation.“100millionbirdsayearthroughoutNorthAmericadieincrasheswithlightedbuildingsandtowers.”Countlessmoreanimalscasualties(傷亡)resultfromtheuseofartificiallighting.Clearly,peopleenjoythebenefitsoflightingtheirevenings,butsomescientiststhinkitcanbeharmfulforhumans,too.Theyworrythatexposuretolightwhilesleepingcanincreaseaperson'schancesofgettingcancer.EmeraldValleyisonlyonecommunitythatisbecomingawareofthenegativeeffectsoflightpollution.Foryears,文章大意：本文是一篇議論文，作者通過一場不令人滿意的流星雨引出話題，闡述了光污染對于人類及動物所造成的危害，號召人們不需要的時候，把燈關掉。51．Ithappenedlastnightthat________.A．thecity'slightsaffectedthemeteorwatchingB．themeteorsflewpastbeforebeingnoticedC．thecitylightshowattractedmanypeopleD．themeteorwatchingendedupasocialouting答案：A細節(jié)理解題。由第一段最后一句話：他們發(fā)現的是被城市燈光照得如此明亮的天空使得劃過我們頭頂的流星暗淡無光，所以可以知道城市燈光影響了流星雨的觀看。故選A項。52．Whatdotheastronomerscomplainabout?A．Meteorshowersoccurlessoftenthanbefore.B．Theirobservationequipmentisinpoorrepair.C．Lightpollutionhasremainedunsolvedforyears.D．Theireyesightisfailingduetoartificiallighting.答案：C細節(jié)理解題。由第三段一、二句話，可知天文學家們幾十年來以直報怨這個問題，說明光污染的問題多年沒有解決。故選C項。53．WhattheauthorconcernedaboutaccordingtoParagraph4?A．Birdsmaytakeothermigrationpaths.B．Animal'slivinghabitsmaychangesuddenly.C．Varietiesofanimalswillbecomeshar