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? ?下面的短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为第1～4段每段选择1个最佳标题；(2)第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。 ? ? ? ...
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? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
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第二篇NewFoodsandtheNewWorld Inthelast500yearsnothingaboutpeople–nottheirclothesideasorlanguages–haschangedasmuchaswhattheyeat.Theoriginalchocolatedrinkwasmadefromtheseedsofthecocatree可可树bySouthAmericanIndians.TheSpanishintroducedittotherestoftheworldduringthe1500’s.Andalthoughitwasveryexpensiveitquicklybecamefashionable.InLondonshopswherechocolatedrinkswereservedbecameimportantmeetingplaces.Somestillexisttoday. ThepotatoisalsofromtheNewWorld.Around1600theSpanishbroughtitfromPerutoEuropewhereitsoonwaswidelygrown.IrelandbecamesodependentonitthatthousandsofIrishpeoplestarvedwhenthecropfailedduringthePotatoFamine饥荒of1845-1846andthousandsmorewereforcedtoleavetheirhomelandandmovetoAmerica. TherearemanyotherfoodsthathavetraveledfromSouthAmericatotheOldWorld.Butsomeotherswentintheoppositedirection.Brazilisnowtheworld’slargestgrowerofcoffeeandcoffeeisanimportantcropinColombiaandotherSouthAmericancountries.ButitisnativetoEthiopiaacountryinAfrica.ItwasfirstmadeintoadrinkbyArabduringthe1400’s. AccordingtoanArabiclegendcoffeewasdiscoveredwhenapersonnameKaldinoticedthathisgoatswereattractedtotheredberriesonacoffeebush.Hetriedoneandexperiencedthewide-awakefeelingthatone-thirdoftheworld’spopulationnowstartsthedaywith. WhichofthefollowingstatementsisNOTtrueaccordingtothepassage?
TheThreattoKiribati ThepeopleofKiribatiareafraidthatonedayinthenot-too-distantfuturetheircountrywilldisappearfromthefaceoftheearth-literally.SeveraltimesthisyearthePacificislandnationhasbeenfloodedbyasuddenhightide.Thesetideswhichsweptacrosstheislandanddestroyedhousescamewhentherewasneitherwindnorrain.ThisneverhappenedbeforesaytheoldercitizensofKiribati. Whatiscausingthesemysterioushightides?Theanswermaywellbeglobalwarming.Whenfuelslikeoilandcoalarebeingburnedpollutants污染物arereleased;thesepollutantstrapheatintheearth’satmosphere.Warmertemperaturescausewatertoexpandandalsocreatemorewaterbymeltingglaciers冰川andpolar极地的icecaps. IfthetrendcontinuesscientistssaymanycountrieswillsufferBangladeshforexamplemightloseone-fifthofitsland.Thecoral珊瑚islandnationsofthePacificlikeKiribatiandtheMarshallIslandshoweverwouldfaceanevenworsefate–theywouldbeswallowedbythesea.Thelossofthesecoralislandswouldbeeveryone’sloss.Coralformationsarehometomorespeciesthananyotherplaceonearth. Thepeopleofthesenationsfeelfrustrated.Theseaonwhichtheireconomieshavealwaysbeenbasedissuddenlythreateningtheirexistence.Theydon’thavethemoneyforexpensivetechnologicalsolutionslikeseawalls.Andtheyhavenocontroloverthepollutantswhicharebeingreleasedmainlybyactivitiesinlargeindustrializedcountries.Alltheycandoistohopethatindustrializedcountrieswilltakestepstoreducepollution. Theheatreleasedbyburningoilandcoalisthedirectcauseofglobalwarming.
SingingAlarmsCouldSavetheBlind Ifyoucannotseeyoumaynotbeabletofindyourwayoutofaburningbuilding–andthatcouldbefatal.AcompanyinLeedscould____________51allthatwithdirectional定向的soundalarmscapableofguidingyoutotheexit. SoundAlertacompanyrun__________52theUniversityofLeedsisinstallingthealarmsinaresidentialhomefor______________53peopleinSommersetandaresourcecenterfortheblindinCambria.Thealarmsproducea_____54rangeoffrequenciesthatenablethebrainto________55wherethesoundiscomingfrom. DeborahWithingtonofSoundAlertsaysthatthealarmsusemostofthefrequenciesthatcanbe__________56byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic静电噪音ontheradioshesays.Itslife-savingpotentialis______57. Sheconductedanexperimentinwhichpeoplewerefilmedbythermal-imaging热效应成像camerastryingtofindtheir_________58outofalargesmoke-filledroom.It________59themnearlyfourminutestofindthedoorwithoutasoundalarm________60only15secondswithone. Withingtonstudieshowthebrain______61soundsattheuniversity.Shesaysthatthe_________62ofawidebandoffrequenciescanbepinpointed精确地确定moreeasilythanthesourceofanarrowband.Alarms___________63onthesameconcepthavealreadybeeninstalledonemergencyvehicles. Thealarmswillalsoincluderisingorfallingfrequenciesto_________64whetherpeopleshouldgoupordownstairs.Theywere______________65withtheaidofalargegrantfromBritishNuclearFuels.
WeallthinkthatMary’shusbandisaveryboringperson.
Inthelattercasetheoutcomecanbeseriousindeed.
TheThreattoKiribati ThepeopleofKiribatiareafraidthatonedayinthenot-too-distantfuturetheircountrywilldisappearfromthefaceoftheearth-literally.SeveraltimesthisyearthePacificislandnationhasbeenfloodedbyasuddenhightide.Thesetideswhichsweptacrosstheislandanddestroyedhousescamewhentherewasneitherwindnorrain.ThisneverhappenedbeforesaytheoldercitizensofKiribati. Whatiscausingthesemysterioushightides?Theanswermaywellbeglobalwarming.Whenfuelslikeoilandcoalarebeingburnedpollutants污染物arereleased;thesepollutantstrapheatintheearth’satmosphere.Warmertemperaturescausewatertoexpandandalsocreatemorewaterbymeltingglaciers冰川andpolar极地的icecaps. IfthetrendcontinuesscientistssaymanycountrieswillsufferBangladeshforexamplemightloseone-fifthofitsland.Thecoral珊瑚islandnationsofthePacificlikeKiribatiandtheMarshallIslandshoweverwouldfaceanevenworsefate–theywouldbeswallowedbythesea.Thelossofthesecoralislandswouldbeeveryone’sloss.Coralformationsarehometomorespeciesthananyotherplaceonearth. Thepeopleofthesenationsfeelfrustrated.Theseaonwhichtheireconomieshavealwaysbeenbasedissuddenlythreateningtheirexistence.Theydon’thavethemoneyforexpensivetechnologicalsolutionslikeseawalls.Andtheyhavenocontroloverthepollutantswhicharebeingreleasedmainlybyactivitiesinlargeindustrializedcountries.Alltheycandoistohopethatindustrializedcountrieswilltakestepstoreducepollution. ThecoralislandnationsofthePacifichavealonghistoryofcivilization.
Sheseemedtohavedetectedsomeangerinhisvoice.
第二篇NewFoodsandtheNewWorld Inthelast500yearsnothingaboutpeople–nottheirclothesideasorlanguages–haschangedasmuchaswhattheyeat.Theoriginalchocolatedrinkwasmadefromtheseedsofthecocatree可可树bySouthAmericanIndians.TheSpanishintroducedittotherestoftheworldduringthe1500’s.Andalthoughitwasveryexpensiveitquicklybecamefashionable.InLondonshopswherechocolatedrinkswereservedbecameimportantmeetingplaces.Somestillexisttoday. ThepotatoisalsofromtheNewWorld.Around1600theSpanishbroughtitfromPerutoEuropewhereitsoonwaswidelygrown.IrelandbecamesodependentonitthatthousandsofIrishpeoplestarvedwhenthecropfailedduringthePotatoFamine饥荒of1845-1846andthousandsmorewereforcedtoleavetheirhomelandandmovetoAmerica. TherearemanyotherfoodsthathavetraveledfromSouthAmericatotheOldWorld.Butsomeotherswentintheoppositedirection.Brazilisnowtheworld’slargestgrowerofcoffeeandcoffeeisanimportantcropinColombiaandotherSouthAmericancountries.ButitisnativetoEthiopiaacountryinAfrica.ItwasfirstmadeintoadrinkbyArabduringthe1400’s. AccordingtoanArabiclegendcoffeewasdiscoveredwhenapersonnameKaldinoticedthathisgoatswereattractedtotheredberriesonacoffeebush.Hetriedoneandexperiencedthewide-awakefeelingthatone-thirdoftheworld’spopulationnowstartsthedaywith. Accordingtothepassagewhichofthefollowinghaschangedthemostinthelast500years?
第一篇EtaCarinae Aspossiblythegalaxy’s银河mostmassivestarEtaCarinaeisnowengaginginsomeveryunusualbehaviour.AustralianastronomersbeingintheSouthernHemisphere半球areabletoobserveitclearly. Inthe19thcenturyEtaCarinaewasforatimethethirdbrighteststarinthesky.Ithasnowbecomelessbrightsothatbinoculars双筒望远镜areneededtoseeit.ItseemstobebrighteningandbecominglessbrightoveraperiodofmanyyearssaidDrBobDuncanfromtheAustraliaTelescopeNationalFacility. Whileitisnotunusualforstarstovaryinbrightnesstheperiodisusuallymuchshorter.Since1992ithasbecomefourtimesbrighterandthenlastyearitbegantodropdramaticallyhesaid. TheprobleminobservingEtaCarinaeisthatithasbeensurroundedbyacloudofgasanddustmakingithardtoseethestardirectly.Howeverradiowavesandinfraredlight红外线canpassthroughthiscloudsotelescopesthatreceivethesewavelengthscanobservewhatisoccurring. EtaCarinaeisofparticularinteresttoastronomersbecauseitseemstobeinitsdeaththroes剧痛.Beingsolargeitwillendupasasupernova超新星.Therehasnotbeenasupernovainourgalaxysincetheinventionofthetelescope.Whilea1987explosioninanearbygalaxygaveastronomersplentyofvaluabledatatheyarehungryforanevencloserlook. EtaCarinaehasotheruniquefeaturesandistheonlystarknowntoproduceanultraviolet紫外线laserthatisbrighterthanthatproducedbytheSun.Lasershavebeenobservedinotherfrequenciesfromafewstars. AstronomersareparticularlyinterestedinEtaCarinaebecause
SingingAlarmsCouldSavetheBlind Ifyoucannotseeyoumaynotbeabletofindyourwayoutofaburningbuilding–andthatcouldbefatal.AcompanyinLeedscould____________51allthatwithdirectional定向的soundalarmscapableofguidingyoutotheexit. SoundAlertacompanyrun__________52theUniversityofLeedsisinstallingthealarmsinaresidentialhomefor______________53peopleinSommersetandaresourcecenterfortheblindinCambria.Thealarmsproducea_____54rangeoffrequenciesthatenablethebrainto________55wherethesoundiscomingfrom. DeborahWithingtonofSoundAlertsaysthatthealarmsusemostofthefrequenciesthatcanbe__________56byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic静电噪音ontheradioshesays.Itslife-savingpotentialis______57. Sheconductedanexperimentinwhichpeoplewerefilmedbythermal-imaging热效应成像camerastryingtofindtheir_________58outofalargesmoke-filledroom.It________59themnearlyfourminutestofindthedoorwithoutasoundalarm________60only15secondswithone. Withingtonstudieshowthebrain______61soundsattheuniversity.Shesaysthatthe_________62ofawidebandoffrequenciescanbepinpointed精确地确定moreeasilythanthesourceofanarrowband.Alarms___________63onthesameconcepthavealreadybeeninstalledonemergencyvehicles. Thealarmswillalsoincluderisingorfallingfrequenciesto_________64whetherpeopleshouldgoupordownstairs.Theywere______________65withtheaidofalargegrantfromBritishNuclearFuels.
SingingAlarmsCouldSavetheBlind Ifyoucannotseeyoumaynotbeabletofindyourwayoutofaburningbuilding–andthatcouldbefatal.AcompanyinLeedscould____________51allthatwithdirectional定向的soundalarmscapableofguidingyoutotheexit. SoundAlertacompanyrun__________52theUniversityofLeedsisinstallingthealarmsinaresidentialhomefor______________53peopleinSommersetandaresourcecenterfortheblindinCambria.Thealarmsproducea_____54rangeoffrequenciesthatenablethebrainto________55wherethesoundiscomingfrom. DeborahWithingtonofSoundAlertsaysthatthealarmsusemostofthefrequenciesthatcanbe__________56byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic静电噪音ontheradioshesays.Itslife-savingpotentialis______57. Sheconductedanexperimentinwhichpeoplewerefilmedbythermal-imaging热效应成像camerastryingtofindtheir_________58outofalargesmoke-filledroom.It________59themnearlyfourminutestofindthedoorwithoutasoundalarm________60only15secondswithone. Withingtonstudieshowthebrain______61soundsattheuniversity.Shesaysthatthe_________62ofawidebandoffrequenciescanbepinpointed精确地确定moreeasilythanthesourceofanarrowband.Alarms___________63onthesameconcepthavealreadybeeninstalledonemergencyvehicles. Thealarmswillalsoincluderisingorfallingfrequenciesto_________64whetherpeopleshouldgoupordownstairs.Theywere______________65withtheaidofalargegrantfromBritishNuclearFuels.
SingingAlarmsCouldSavetheBlind Ifyoucannotseeyoumaynotbeabletofindyourwayoutofaburningbuilding–andthatcouldbefatal.AcompanyinLeedscould____________51allthatwithdirectional定向的soundalarmscapableofguidingyoutotheexit. SoundAlertacompanyrun__________52theUniversityofLeedsisinstallingthealarmsinaresidentialhomefor______________53peopleinSommersetandaresourcecenterfortheblindinCambria.Thealarmsproducea_____54rangeoffrequenciesthatenablethebrainto________55wherethesoundiscomingfrom. DeborahWithingtonofSoundAlertsaysthatthealarmsusemostofthefrequenciesthatcanbe__________56byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic静电噪音ontheradioshesays.Itslife-savingpotentialis______57. Sheconductedanexperimentinwhichpeoplewerefilmedbythermal-imaging热效应成像camerastryingtofindtheir_________58outofalargesmoke-filledroom.It________59themnearlyfourminutestofindthedoorwithoutasoundalarm________60only15secondswithone. Withingtonstudieshowthebrain______61soundsattheuniversity.Shesaysthatthe_________62ofawidebandoffrequenciescanbepinpointed精确地确定moreeasilythanthesourceofanarrowband.Alarms___________63onthesameconcepthavealreadybeeninstalledonemergencyvehicles. Thealarmswillalsoincluderisingorfallingfrequenciesto_________64whetherpeopleshouldgoupordownstairs.Theywere______________65withtheaidofalargegrantfromBritishNuclearFuels.
Hundredsofbuildingswere{{U}}wrecked{{/U}}bytheearthquake.
Ihadsomedifficultyincarryingouttheplan.
第三篇London’sFirstLightRailSystem TheDocklandsLightRailwayDLRtookjustthreeyearstobuildatacostof￡77million.ItisLondon’sfirstLightRailSystembutitsroutefollowsthatofanumberofolderlineswhichcarriedthenineteenthcenturyrailwaysthroughthecroweddistrictsoftheEastEnd. ThesectionofthelinefromtheTowerGatewayStationtoPoplarfollowsthelineofoneofLondon’searliestrailwaystheLondon&Blackwell1840acable-drawnrailwaylaterconvertedtosteamwhichcarriedpassengerstosteamshipsatBlackwellPierandprovidedtransportforthemessengersandclerkswhowentbackwardsandforwardsbetweenthedocks码头andthecityeveryday. FromPoplartoIslandGardensanewlinecrosseshighabovethedockwatersandthenjoinstheoldtrackoftheMillwallExtensionRailwaybuilttoservicetheMillwallDocks1868andtoprovidetransportforworkersinthelocalfactories.Thislinewashorse-drawnforpartofitsrouteuntilthe1880s. ThePolartoStratfordsectionoftheDLRroutewasfirstdevelopedbytheNorthLondonRailwaybuiltinthe1850stolinktheWestandEastIndiaDockswiththemanufacturingdistrictsoftheMidlandsandNorthofEngland.Thereweremajorrailwayworksandsidings岔线atBowuntilrecently. Thetrainsareautomaticallycontrolledfromacentralcomputerwhichdealswithallsignalingandothersafetyfactorsaswellasadjustingspeedstokeepwithinthetimetable;onboardeachvehicleTrainCaptainswhoarealsofullyqualifieddriversareequippedwithtwo-wayradiostomaintaincontactwithcentralcontrol.Therearepassengerliftsandself-serviceticketmachinesateverystation. ItappearsthatthePoplartoStratfordsectionoftheDLRroutewasoriginallydevelopedto
第三篇London’sFirstLightRailSystem TheDocklandsLightRailwayDLRtookjustthreeyearstobuildatacostof￡77million.ItisLondon’sfirstLightRailSystembutitsroutefollowsthatofanumberofolderlineswhichcarriedthenineteenthcenturyrailwaysthroughthecroweddistrictsoftheEastEnd. ThesectionofthelinefromtheTowerGatewayStationtoPoplarfollowsthelineofoneofLondon’searliestrailwaystheLondon&Blackwell1840acable-drawnrailwaylaterconvertedtosteamwhichcarriedpassengerstosteamshipsatBlackwellPierandprovidedtransportforthemessengersandclerkswhowentbackwardsandforwardsbetweenthedocks码头andthecityeveryday. FromPoplartoIslandGardensanewlinecrosseshighabovethedockwatersandthenjoinstheoldtrackoftheMillwallExtensionRailwaybuilttoservicetheMillwallDocks1868andtoprovidetransportforworkersinthelocalfactories.Thislinewashorse-drawnforpartofitsrouteuntilthe1880s. ThePolartoStratfordsectionoftheDLRroutewasfirstdevelopedbytheNorthLondonRailwaybuiltinthe1850stolinktheWestandEastIndiaDockswiththemanufacturingdistrictsoftheMidlandsandNorthofEngland.Thereweremajorrailwayworksandsidings岔线atBowuntilrecently. Thetrainsareautomaticallycontrolledfromacentralcomputerwhichdealswithallsignalingandothersafetyfactorsaswellasadjustingspeedstokeepwithinthetimetable;onboardeachvehicleTrainCaptainswhoarealsofullyqualifieddriversareequippedwithtwo-wayradiostomaintaincontactwithcentralcontrol.Therearepassengerliftsandself-serviceticketmachinesateverystation. WelearnfromthepassagethattheLondon&Blackwellrailway
TheThreattoKiribati ThepeopleofKiribatiareafraidthatonedayinthenot-too-distantfuturetheircountrywilldisappearfromthefaceoftheearth-literally.SeveraltimesthisyearthePacificislandnationhasbeenfloodedbyasuddenhightide.Thesetideswhichsweptacrosstheislandanddestroyedhousescamewhentherewasneitherwindnorrain.ThisneverhappenedbeforesaytheoldercitizensofKiribati. Whatiscausingthesemysterioushightides?Theanswermaywellbeglobalwarming.Whenfuelslikeoilandcoalarebeingburnedpollutants污染物arereleased;thesepollutantstrapheatintheearth’satmosphere.Warmertemperaturescausewatertoexpandandalsocreatemorewaterbymeltingglaciers冰川andpolar极地的icecaps. IfthetrendcontinuesscientistssaymanycountrieswillsufferBangladeshforexamplemightloseone-fifthofitsland.Thecoral珊瑚islandnationsofthePacificlikeKiribatiandtheMarshallIslandshoweverwouldfaceanevenworsefate–theywouldbeswallowedbythesea.Thelossofthesecoralislandswouldbeeveryone’sloss.Coralformationsarehometomorespeciesthananyotherplaceonearth. Thepeopleofthesenationsfeelfrustrated.Theseaonwhichtheireconomieshavealwaysbeenbasedissuddenlythreateningtheirexistence.Theydon’thavethemoneyforexpensivetechnologicalsolutionslikeseawalls.Andtheyhavenocontroloverthepollutantswhicharebeingreleasedmainlybyactivitiesinlargeindustrializedcountries.Alltheycandoistohopethatindustrializedcountrieswilltakestepstoreducepollution. ThepeopleofKiribatiworrythatonedaytheircountrywillbetakenawaybyasuddenhightide.
Theyonlyhavealimitedamountoftimetogettheirpointsacross.
SingingAlarmsCouldSavetheBlind Ifyoucannotseeyoumaynotbeabletofindyourwayoutofaburningbuilding–andthatcouldbefatal.AcompanyinLeedscould____________51allthatwithdirectional定向的soundalarmscapableofguidingyoutotheexit. SoundAlertacompanyrun__________52theUniversityofLeedsisinstallingthealarmsinaresidentialhomefor______________53peopleinSommersetandaresourcecenterfortheblindinCambria.Thealarmsproducea_____54rangeoffrequenciesthatenablethebrainto________55wherethesoundiscomingfrom. DeborahWithingtonofSoundAlertsaysthatthealarmsusemostofthefrequenciesthatcanbe__________56byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic静电噪音ontheradioshesays.Itslife-savingpotentialis______57. Sheconductedanexperimentinwhichpeoplewerefilmedbythermal-imaging热效应成像camerastryingtofindtheir_________58outofalargesmoke-filledroom.It________59themnearlyfourminutestofindthedoorwithoutasoundalarm________60only15secondswithone. Withingtonstudieshowthebrain______61soundsattheuniversity.Shesaysthatthe_________62ofawidebandoffrequenciescanbepinpointed精确地确定moreeasilythanthesourceofanarrowband.Alarms___________63onthesameconcepthavealreadybeeninstalledonemergencyvehicles. Thealarmswillalsoincluderisingorfallingfrequenciesto_________64whetherpeopleshouldgoupordownstairs.Theywere______________65withtheaidofalargegrantfromBritishNuclearFuels.
SingingAlarmsCouldSavetheBlind Ifyoucannotseeyoumaynotbeabletofindyourwayoutofaburningbuilding–andthatcouldbefatal.AcompanyinLeedscould____________51allthatwithdirectional定向的soundalarmscapableofguidingyoutotheexit. SoundAlertacompanyrun__________52theUniversityofLeedsisinstallingthealarmsinaresidentialhomefor______________53peopleinSommersetandaresourcecenterfortheblindinCambria.Thealarmsproducea_____54rangeoffrequenciesthatenablethebrainto________55wherethesoundiscomingfrom. DeborahWithingtonofSoundAlertsaysthatthealarmsusemostofthefrequenciesthatcanbe__________56byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic静电噪音ontheradioshesays.Itslife-savingpotentialis______57. Sheconductedanexperimentinwhichpeoplewerefilmedbythermal-imaging热效应成像camerastryingtofindtheir_________58outofalargesmoke-filledroom.It________59themnearlyfourminutestofindthedoorwithoutasoundalarm________60only15secondswithone. Withingtonstudieshowthebrain______61soundsattheuniversity.Shesaysthatthe_________62ofawidebandoffrequenciescanbepinpointed精确地确定moreeasilythanthesourceofanarrowband.Alarms___________63onthesameconcepthavealreadybeeninstalledonemergencyvehicles. Thealarmswillalsoincluderisingorfallingfrequenciesto_________64whetherpeopleshouldgoupordownstairs.Theywere______________65withtheaidofalargegrantfromBritishNuclearFuels.
TheThreattoKiribati ThepeopleofKiribatiareafraidthatonedayinthenot-too-distantfuturetheircountrywilldisappearfromthefaceoftheearth-literally.SeveraltimesthisyearthePacificislandnationhasbeenfloodedbyasuddenhightide.Thesetideswhichsweptacrosstheislandanddestroyedhousescamewhentherewasneitherwindnorrain.ThisneverhappenedbeforesaytheoldercitizensofKiribati. Whatiscausingthesemysterioushightides?Theanswermaywellbeglobalwarming.Whenfuelslikeoilandcoalarebeingburnedpollutants污染物arereleased;thesepollutantstrapheatintheearth’satmosphere.Warmertemperaturescausewatertoexpandandalsocreatemorewaterbymeltingglaciers冰川andpolar极地的icecaps. IfthetrendcontinuesscientistssaymanycountrieswillsufferBangladeshforexamplemightloseone-fifthofitsland.Thecoral珊瑚islandnationsofthePacificlikeKiribatiandtheMarshallIslandshoweverwouldfaceanevenworsefate–theywouldbeswallowedbythesea.Thelossofthesecoralislandswouldbeeveryone’sloss.Coralformationsarehometomorespeciesthananyotherplaceonearth. Thepeopleofthesenationsfeelfrustrated.Theseaonwhichtheireconomieshavealwaysbeenbasedissuddenlythreateningtheirexistence.Theydon’thavethemoneyforexpensivetechnologicalsolutionslikeseawalls.Andtheyhavenocontroloverthepollutantswhicharebeingreleasedmainlybyactivitiesinlargeindustrializedcountries.Alltheycandoistohopethatindustrializedcountrieswilltakestepstoreducepollution. Someindustrializedcountriesareunwillingtospendmoneyinreducingpollution.
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ??????????? ??{{B}}PaperorPlastic?{{/B}}??Takeawalkalongthe ChesapeakeBayandyouarelikelytoseeplasticbagsfloatinginthewater. Theyhavemadetheir{{U}}?51?{{/U}}intolocalwaterwaysandfrom thereintothebaywheretheycan{{U}}?52?{{/U}}wildlife.Pilesof themshowupinlandfills垃圾填埋地andoncitystreets.Plasticbagsalsotakean environmentaltoll代价inthe{{U}}?53?{{/U}}ofmillionsofbarrelsof oilexpendedeveryyeartoproducethem.??EnterAnnapolisandyou willseeplasticbags{{U}}?54?{{/U}}freeindepartmentstoresand supermarkets.Alderman市议员SamShropshirehasintroducedawell-meaning{{U}} ?55?{{/U}}tobanretailersfromdistributingplasticshoppingbagsin Maryland’scapital.insteadretailerswouldberequiredto{{U}}?56 ?{{/U}}bagsmadeofrecycledpaperandtosellreusablebags.Thecityof Baltimoreis{{U}}?57?{{/U}}asimilarmeasure.Opponentsofthe{{U}} ?58?{{/U}}howeverarguethatpaperbagsareharmfultoo:They costmoretomakethey{{U}}?59?{{/U}}moreresourcestotransportand recyclingthemcausesmorepollutionthanrecyclingplastic.Theargumentfor deprivingAnnapolisresidents{{U}}?60?{{/U}}theirplasticbagsisfar fromaccepted.Everyoneinthis{{U}}?61?{{/U}}isrightaboutone thing:Disposableshoppingbagsofanytypearewastefulandthebestoutcome wouldbeforcustomersto{{U}}?62?{{/U}}bagsinstead.Annapolis’s mayorisinvestigatinghowtohandoutfreereusableshoppingbagstocity residentsaproposalthatcanproceed{{U}}?63?{{/U}}ofwhetherother bagsarebanned.Aless-expensivealternativewouldbetoencourageretailers togive{{U}}?64?{{/U}}tocustomersWhobringtheirownreusablebags. Andthispolicywouldbemore{{U}}?65?{{/U}}ifstoresimitated furnituremega-retailer超大零售商.Ikeaandchargedfordisposablebagsatthe checkoutcounter.Abroadbanontheuseofplasticshoppingbagsisnotthe answer.
第二篇NewFoodsandtheNewWorld Inthelast500yearsnothingaboutpeople–nottheirclothesideasorlanguages–haschangedasmuchaswhattheyeat.Theoriginalchocolatedrinkwasmadefromtheseedsofthecocatree可可树bySouthAmericanIndians.TheSpanishintroducedittotherestoftheworldduringthe1500’s.Andalthoughitwasveryexpensiveitquicklybecamefashionable.InLondonshopswherechocolatedrinkswereservedbecameimportantmeetingplaces.Somestillexisttoday. ThepotatoisalsofromtheNewWorld.Around1600theSpanishbroughtitfromPerutoEuropewhereitsoonwaswidelygrown.IrelandbecamesodependentonitthatthousandsofIrishpeoplestarvedwhenthecropfailedduringthePotatoFamine饥荒of1845-1846andthousandsmorewereforcedtoleavetheirhomelandandmovetoAmerica. TherearemanyotherfoodsthathavetraveledfromSouthAmericatotheOldWorld.Butsomeotherswentintheoppositedirection.Brazilisnowtheworld’slargestgrowerofcoffeeandcoffeeisanimportantcropinColombiaandotherSouthAmericancountries.ButitisnativetoEthiopiaacountryinAfrica.ItwasfirstmadeintoadrinkbyArabduringthe1400’s. AccordingtoanArabiclegendcoffeewasdiscoveredwhenapersonnameKaldinoticedthathisgoatswereattractedtotheredberriesonacoffeebush.Hetriedoneandexperiencedthewide-awakefeelingthatone-thirdoftheworld’spopulationnowstartsthedaywith. ThousandsofIrishpeoplestarvedduringthePotatoFaminebecause
SingingAlarmsCouldSavetheBlind Ifyoucannotseeyoumaynotbeabletofindyourwayoutofaburningbuilding–andthatcouldbefatal.AcompanyinLeedscould____________51allthatwithdirectional定向的soundalarmscapableofguidingyoutotheexit. SoundAlertacompanyrun__________52theUniversityofLeedsisinstallingthealarmsinaresidentialhomefor______________53peopleinSommersetandaresourcecenterfortheblindinCambria.Thealarmsproducea_____54rangeoffrequenciesthatenablethebrainto________55wherethesoundiscomingfrom. DeborahWithingtonofSoundAlertsaysthatthealarmsusemostofthefrequenciesthatcanbe__________56byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic静电噪音ontheradioshesays.Itslife-savingpotentialis______57. Sheconductedanexperimentinwhichpeoplewerefilmedbythermal-imaging热效应成像camerastryingtofindtheir_________58outofalargesmoke-filledroom.It________59themnearlyfourminutestofindthedoorwithoutasoundalarm________60only15secondswithone. Withingtonstudieshowthebrain______61soundsattheuniversity.Shesaysthatthe_________62ofawidebandoffrequenciescanbepinpointed精确地确定moreeasilythanthesourceofanarrowband.Alarms___________63onthesameconcepthavealreadybeeninstalledonemergencyvehicles. Thealarmswillalsoincluderisingorfallingfrequenciesto_________64whetherpeopleshouldgoupordownstairs.Theywere______________65withtheaidofalargegrantfromBritishNuclearFuels.
第一篇EtaCarinae Aspossiblythegalaxy’s银河mostmassivestarEtaCarinaeisnowengaginginsomeveryunusualbehaviour.AustralianastronomersbeingintheSouthernHemisphere半球areabletoobserveitclearly. Inthe19thcenturyEtaCarinaewasforatimethethirdbrighteststarinthesky.Ithasnowbecomelessbrightsothatbinoculars双筒望远镜areneededtoseeit.ItseemstobebrighteningandbecominglessbrightoveraperiodofmanyyearssaidDrBobDuncanfromtheAustraliaTelescopeNationalFacility. Whileitisnotunusualforstarstovaryinbrightnesstheperiodisusuallymuchshorter.Since1992ithasbecomefourtimesbrighterandthenlastyearitbegantodropdramaticallyhesaid. TheprobleminobservingEtaCarinaeisthatithasbeensurroundedbyacloudofgasanddustmakingithardtoseethestardirectly.Howeverradiowavesandinfraredlight红外线canpassthroughthiscloudsotelescopesthatreceivethesewavelengthscanobservewhatisoccurring. EtaCarinaeisofparticularinteresttoastronomersbecauseitseemstobeinitsdeaththroes剧痛.Beingsolargeitwillendupasasupernova超新星.Therehasnotbeenasupernovainourgalaxysincetheinventionofthetelescope.Whilea1987explosioninanearbygalaxygaveastronomersplentyofvaluabledatatheyarehungryforanevencloserlook. EtaCarinaehasotheruniquefeaturesandistheonlystarknowntoproduceanultraviolet紫外线laserthatisbrighterthanthatproducedbytheSun.Lasershavebeenobservedinotherfrequenciesfromafewstars. ThewordperiodinParagraph3meansthelengthoftime
InshortIamgoingtolivetheremyself.
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ??????????? ??{{B}}PaperorPlastic?{{/B}}??Takeawalkalongthe ChesapeakeBayandyouarelikelytoseeplasticbagsfloatinginthewater. Theyhavemadetheir{{U}}?51?{{/U}}intolocalwaterwaysandfrom thereintothebaywheretheycan{{U}}?52?{{/U}}wildlife.Pilesof themshowupinlandfills垃圾填埋地andoncitystreets.Plasticbagsalsotakean environmentaltoll代价inthe{{U}}?53?{{/U}}ofmillionsofbarrelsof oilexpendedeveryyeartoproducethem.??EnterAnnapolisandyou willseeplasticbags{{U}}?54?{{/U}}freeindepartmentstoresand supermarkets.Alderman市议员SamShropshirehasintroducedawell-meaning{{U}} ?55?{{/U}}tobanretailersfromdistributingplasticshoppingbagsin Maryland’scapital.insteadretailerswouldberequiredto{{U}}?56 ?{{/U}}bagsmadeofrecycledpaperandtosellreusablebags.Thecityof Baltimoreis{{U}}?57?{{/U}}asimilarmeasure.Opponentsofthe{{U}} ?58?{{/U}}howeverarguethatpaperbagsareharmfultoo:They costmoretomakethey{{U}}?59?{{/U}}moreresourcestotransportand recyclingthemcausesmorepollutionthanrecyclingplastic.Theargumentfor deprivingAnnapolisresidents{{U}}?60?{{/U}}theirplasticbagsisfar fromaccepted.Everyoneinthis{{U}}?61?{{/U}}isrightaboutone thing:Disposableshoppingbagsofanytypearewastefulandthebestoutcome wouldbeforcustomersto{{U}}?62?{{/U}}bagsinstead.Annapolis’s mayorisinvestigatinghowtohandoutfreereusableshoppingbagstocity residentsaproposalthatcanproceed{{U}}?63?{{/U}}ofwhetherother bagsarebanned.Aless-expensivealternativewouldbetoencourageretailers togive{{U}}?64?{{/U}}tocustomersWhobringtheirownreusablebags. Andthispolicywouldbemore{{U}}?65?{{/U}}ifstoresimitated furnituremega-retailer超大零售商.Ikeaandchargedfordisposablebagsatthe checkoutcounter.Abroadbanontheuseofplasticshoppingbagsisnotthe answer.
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ??????????? ??{{B}}PaperorPlastic?{{/B}}??Takeawalkalongthe ChesapeakeBayandyouarelikelytoseeplasticbagsfloatinginthewater. Theyhavemadetheir{{U}}?51?{{/U}}intolocalwaterwaysandfrom thereintothebaywheretheycan{{U}}?52?{{/U}}wildlife.Pilesof themshowupinlandfills垃圾填埋地andoncitystreets.Plasticbagsalsotakean environmentaltoll代价inthe{{U}}?53?{{/U}}ofmillionsofbarrelsof oilexpendedeveryyeartoproducethem.??EnterAnnapolisandyou willseeplasticbags{{U}}?54?{{/U}}freeindepartmentstoresand supermarkets.Alderman市议员SamShropshirehasintroducedawell-meaning{{U}} ?55?{{/U}}tobanretailersfromdistributingplasticshoppingbagsin Maryland’scapital.insteadretailerswouldberequiredto{{U}}?56 ?{{/U}}bagsmadeofrecycledpaperandtosellreusablebags.Thecityof Baltimoreis{{U}}?57?{{/U}}asimilarmeasure.Opponentsofthe{{U}} ?58?{{/U}}howeverarguethatpaperbagsareharmfultoo:They costmoretomakethey{{U}}?59?{{/U}}moreresourcestotransportand recyclingthemcausesmorepollutionthanrecyclingplastic.Theargumentfor deprivingAnnapolisresidents{{U}}?60?{{/U}}theirplasticbagsisfar fromaccepted.Everyoneinthis{{U}}?61?{{/U}}isrightaboutone thing:Disposableshoppingbagsofanytypearewastefulandthebestoutcome wouldbeforcustomersto{{U}}?62?{{/U}}bagsinstead.Annapolis’s mayorisinvestigatinghowtohandoutfreereusableshoppingbagstocity residentsaproposalthatcanproceed{{U}}?63?{{/U}}ofwhetherother bagsarebanned.Aless-expensivealternativewouldbetoencourageretailers togive{{U}}?64?{{/U}}tocustomersWhobringtheirownreusablebags. Andthispolicywouldbemore{{U}}?65?{{/U}}ifstoresimitated furnituremega-retailer超大零售商.Ikeaandchargedfordisposablebagsatthe checkoutcounter.Abroadbanontheuseofplasticshoppingbagsisnotthe answer.
SingingAlarmsCouldSavetheBlind Ifyoucannotseeyoumaynotbeabletofindyourwayoutofaburningbuilding–andthatcouldbefatal.AcompanyinLeedscould____________51allthatwithdirectional定向的soundalarmscapableofguidingyoutotheexit. SoundAlertacompanyrun__________52theUniversityofLeedsisinstallingthealarmsinaresidentialhomefor______________53peopleinSommersetandaresourcecenterfortheblindinCambria.Thealarmsproducea_____54rangeoffrequenciesthatenablethebrainto________55wherethesoundiscomingfrom. DeborahWithingtonofSoundAlertsaysthatthealarmsusemostofthefrequenciesthatcanbe__________56byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic静电噪音ontheradioshesays.Itslife-savingpotentialis______57. Sheconductedanexperimentinwhichpeoplewerefilmedbythermal-imaging热效应成像camerastryingtofindtheir_________58outofalargesmoke-filledroom.It________59themnearlyfourminutestofindthedoorwithoutasoundalarm________60only15secondswithone. Withingtonstudieshowthebrain______61soundsattheuniversity.Shesaysthatthe_________62ofawidebandoffrequenciescanbepinpointed精确地确定moreeasilythanthesourceofanarrowband.Alarms___________63onthesameconcepthavealreadybeeninstalledonemergencyvehicles. Thealarmswillalsoincluderisingorfallingfrequenciesto_________64whetherpeopleshouldgoupordownstairs.Theywere______________65withtheaidofalargegrantfromBritishNuclearFuels.
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