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阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?...
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阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置
? ?阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章
? ?阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章
阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置
阅读下面的短文文章有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置以
? ?阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章
? ?阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章
阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置
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阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置
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{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ????????SingingAlarmsCouldSave theBlind{{/B}}??Ifyoucannotseeyoumaynotbeabletofind yourwayoutofaburningbuilding-andthatcouldbefatal.AcompanyinLeeds could{{U}}?51?{{/U}}allthatwithdirectional定向的soundalarms capableofguidingyoutotheexit.??SoundAlertacompanyrun {{U}}?52?{{/U}}theUniversityofLeedsisinstallingthealarmsina residentialhomefor{{U}}?53?{{/U}}peopleinSommersetandaresource centrefortheblindinCumbria.Thealarmsproducea{{U}}?54?{{/U}} rangeoffrequenciesthatenablethebrainto{{U}}?55?{{/U}}wherethe soundiscomingfrom.??DeborahWithingtonofSoundAlertsays thatthealarmsusemostofthefrequenciesthatcanbe{{U}}?56?{{/U}} byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic 静电噪音ontheradioshesays.itslife-savingpotentialis{{U}}?57 ?{{/U}}.??Sheconductedanexperimentinwhichpeoplewere filmedbythermal-imaging热效应成像camerastryingtofindtheir{{U}}?58 ?{{/U}}outofalargesmoke-filledroom.It{{U}}?59?{{/U}}them nearlyfourminutestofindthedoorwithoutasoundalarm{{U}}?60 ?{{/U}}only15secondswithone.??Withingtonstudieshowthe brain{{U}}?61?{{/U}}soundsattheuniversity.Shesaysthatthe {{U}}?62?{{/U}}ofawidebandoffrequenciescanbepinpointed精确地确定 moreeasilythanthesourceofanarrowband.Alarms{{U}}?63?{{/U}}on thesameconcepthavealreadybeeninstalledonemergencyvehicles.? ?Thealarmswillalsoincluderisingorfallingfrequenciesto {{U}}?64?{{/U}}whetherpeopleshouldgoupordownstairs.Theywere {{U}}?65?{{/U}}withtheaidofalargegrantfromBritishNuclear Fuels.
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{{*HTML*}}? ?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235和6段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个止确选项分别完成每个句子 {{B}}?????????? ??????????? ?Robots{{/B}}1?Themostsophisticated先进的Japaneserobots whichhavevisionsystemsandworkatveryhighspeedsarestillbasedon Americandesigns.Studiesofrobotsparticularlycomputercontrolsoftwareare consideredtobegenerallylessadvancedinJapanthaninAmericaor Europe.2?Althoughindustrialrobotswereoriginallydevelopedas devicesforsimplyhandlingobjectstodaytheircommonestusesareformore skilledworklikewelding焊接spray-paintingandassemblingcomponents.3 ?InBritainrobotsalesappropriatelypeakedin1984buthavebeen decliningeversince.ThisispartlybecauseBritishwageratesaretoolowto makerobotsfinanciallyattractiveandpartlybecauseengineersnowhavemore experiencewithrobotsandaremoreawareofthedifficultiesofintroducing themeffectively.4?Ithasbeencalculatedthatarobotusesonaverage about100timesmoreenergythanahumantodoanequivalentjob.5?It isestimatedthat20%ofallcomicbookheroesinJapanarerobots.Thisisan enormousnumberbecausecomicsaresopopularthattheymakeupathirdofall materialpublishedinJapan.6?Thereliabilityofrobotsismeasuredin theirM.T.B.F.ormeantimebetweenfailures.Thishasrisenfromabout250 hoursinthemid-1970stoabout10000hourstodayequivalenttoworking18 hoursadayfortwoyears.Onewayrobotmanufacturershaveincreased reliabilityistotesteverysinglecomponenttheybuyinsteadofthenormal procedureofjusttestingasmallsample.7?Thebiggestsinglebenefit ofintroducingrobotsclaimedbyJapanesecompaniesisthattheyincrease qualitycontrol.Onceprogrammedtherobotscanworkmoreaccuratelyand consistentlythanhumanswhocangettiredandbored.RobotsarelesspopularinBritaintodaypartlybecause______
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{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ????????SingingAlarmsCouldSave theBlind{{/B}}??Ifyoucannotseeyoumaynotbeabletofind yourwayoutofaburningbuilding-andthatcouldbefatal.AcompanyinLeeds could{{U}}?51?{{/U}}allthatwithdirectional定向的soundalarms capableofguidingyoutotheexit.??SoundAlertacompanyrun {{U}}?52?{{/U}}theUniversityofLeedsisinstallingthealarmsina residentialhomefor{{U}}?53?{{/U}}peopleinSommersetandaresource centrefortheblindinCumbria.Thealarmsproducea{{U}}?54?{{/U}} rangeoffrequenciesthatenablethebrainto{{U}}?55?{{/U}}wherethe soundiscomingfrom.??DeborahWithingtonofSoundAlertsays thatthealarmsusemostofthefrequenciesthatcanbe{{U}}?56?{{/U}} byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic 静电噪音ontheradioshesays.itslife-savingpotentialis{{U}}?57 ?{{/U}}.??Sheconductedanexperimentinwhichpeoplewere filmedbythermal-imaging热效应成像camerastryingtofindtheir{{U}}?58 ?{{/U}}outofalargesmoke-filledroom.It{{U}}?59?{{/U}}them nearlyfourminutestofindthedoorwithoutasoundalarm{{U}}?60 ?{{/U}}only15secondswithone.??Withingtonstudieshowthe brain{{U}}?61?{{/U}}soundsattheuniversity.Shesaysthatthe {{U}}?62?{{/U}}ofawidebandoffrequenciescanbepinpointed精确地确定 moreeasilythanthesourceofanarrowband.Alarms{{U}}?63?{{/U}}on thesameconcepthavealreadybeeninstalledonemergencyvehicles.? ?Thealarmswillalsoincluderisingorfallingfrequenciesto {{U}}?64?{{/U}}whetherpeopleshouldgoupordownstairs.Theywere {{U}}?65?{{/U}}withtheaidofalargegrantfromBritishNuclear Fuels.
{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ????????SingingAlarmsCouldSave theBlind{{/B}}??Ifyoucannotseeyoumaynotbeabletofind yourwayoutofaburningbuilding-andthatcouldbefatal.AcompanyinLeeds could{{U}}?51?{{/U}}allthatwithdirectional定向的soundalarms capableofguidingyoutotheexit.??SoundAlertacompanyrun {{U}}?52?{{/U}}theUniversityofLeedsisinstallingthealarmsina residentialhomefor{{U}}?53?{{/U}}peopleinSommersetandaresource centrefortheblindinCumbria.Thealarmsproducea{{U}}?54?{{/U}} rangeoffrequenciesthatenablethebrainto{{U}}?55?{{/U}}wherethe soundiscomingfrom.??DeborahWithingtonofSoundAlertsays thatthealarmsusemostofthefrequenciesthatcanbe{{U}}?56?{{/U}} byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic 静电噪音ontheradioshesays.itslife-savingpotentialis{{U}}?57 ?{{/U}}.??Sheconductedanexperimentinwhichpeoplewere filmedbythermal-imaging热效应成像camerastryingtofindtheir{{U}}?58 ?{{/U}}outofalargesmoke-filledroom.It{{U}}?59?{{/U}}them nearlyfourminutestofindthedoorwithoutasoundalarm{{U}}?60 ?{{/U}}only15secondswithone.??Withingtonstudieshowthe brain{{U}}?61?{{/U}}soundsattheuniversity.Shesaysthatthe {{U}}?62?{{/U}}ofawidebandoffrequenciescanbepinpointed精确地确定 moreeasilythanthesourceofanarrowband.Alarms{{U}}?63?{{/U}}on thesameconcepthavealreadybeeninstalledonemergencyvehicles.? ?Thealarmswillalsoincluderisingorfallingfrequenciesto {{U}}?64?{{/U}}whetherpeopleshouldgoupordownstairs.Theywere {{U}}?65?{{/U}}withtheaidofalargegrantfromBritishNuclear Fuels.
Mr.Johnson{{U}}evidently{{/U}}regardedthisasagreatjoke.
{{*HTML*}}{{B}}第三篇{{/B}} {{B}}??????? ??London’sFirstLightRailSystem{{/B}}??TheDocklands LightRailwayDLRtookjustthreeyearstobuildatacostof￡77million.It isLondon’sfirstLightRailSystembutitsroutefollowsthatofanumberof olderlineswhichcarriedthenineteenthcenturyrailwaysthroughthecrowded districtsoftheEastEnd.??Thesectionofthelinefromthe TowerGatewayStationtoPoplarfollowsthelineofoneofLondon’searliest railwaystheLondon&Blackwell1840acable-drawnrailwaylater convertedtosteamwhichcarriedpassengerstosteamshipsatBlackwellPier andprovidedtransportforthemessengersandclerkswhowentbackwardsand forwardsbetweenthedocks码头andthecityeveryday.??From PoplartoIslandGardensanewlinecrosseshighabovethedockwatersand thenjoinstheoldtrackoftheMillwallExtensionRailwaybuilttoservicethe MillwallDocks1868andtoprovidetransportforworkersinthelocal factories.Thislinewashorse-drawnforpartofitsmuteuntilthe 1880s.??ThePoplartoStratfordsectionoftheDLRroutewas firstdevelopedbytheNorthLondonRailwaybuiltinthe1850stolinktheWest andEastIndiaDockswiththemanufacturingdistrictsoftheMidlandsandNorth ofEngland.Therewere.majorrailwayworksandsidings岔线atBowuntil recently.??Thetrainsareautomaticallycontrolledfromacentral computerwhichdealswithallsignalingandothersafetyfactorsaswellas adjustingspeedstokeepwithinthetimetable;onboardeachvehicleTrain Captainswhoarealsofullyqualifieddriversareequippedwithtwo-wayradios tomaintaincontactwithcentralcontrol.Therearepassengerliftsand self-serviceticketmachinesateverystation.WelearnfromthepassagethattheLondon&Blackwellrailway______
{{*HTML*}}? ?下面有3篇短文每篇短文后有5道题每道题后面有4个选项请根据文章的内容从每题所给的4个选项中选择1个最佳答案{{B}}第一篇{{/B}} {{B}}??????? ?????EtaCarinae{{/B}}??Aspossibly thegalaxy’s银河mostmassivestarEtaCarinaeisnowengaginginsomevery unusualbehaviour.AustralianastronomersbeingintheSouthernHemisphere 半球areabletoobserveitclearly.??Inthe19thcenturyEta Carinaewasforatimethethirdbrighteststarinthesky.Ithasnowbecome lessbrightsothatbinoculars双筒望远镜areneededtoseeit.Itseemstobe brighteningandbecominglessbrightoveraperiodofmanyyearssaidDrBob DuncanfromtheAustraliaTelescopeNationalFacility.??Whileit isnotunusualforstarstovaryinbrightnesstheperiodisusuallymuch shorter.Since1992ithasbecomefourtimesbrighterandthenlastyearit begantodropdramaticallyhesaid.??Theprobleminobserving EtaCarinaeisthatithasbeensurroundedbyacloudofgasanddustmakingit hardtoseethestardirectly.Howeverradiowavesandinfraredlight红外线can passthroughthiscloudsotelescopesthatreceivethesewavelengthscan observewhatisoccurring.??EtaCarinaeisofparticularinterest toastronomersbecauseitseemstobeinitsdeaththroes剧痛.Beingsolarge itwillendupasasupernova超新星.Therehasnotbeenasupernovainour galaxysincetheinventionofthetelescope.Whilea1987explosioninanearby galaxygaveastronomersplentyofvaluabledatatheyarehungryforaneven closerlook.??EtaCarinaehasotheruniquefeaturesandisthe onlystarknowntoproduceanultraviolet紫外线laserthatisbrighterthanthat producedbytheSun.Lasershavebeenobservedinotherfrequenciesfromafew stars.AstronomersareparticularlyinterestedinEtaCarinaebecause
{{*HTML*}}? ?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235和6段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个止确选项分别完成每个句子 {{B}}?????????? ??????????? ?Robots{{/B}}1?Themostsophisticated先进的Japaneserobots whichhavevisionsystemsandworkatveryhighspeedsarestillbasedon Americandesigns.Studiesofrobotsparticularlycomputercontrolsoftwareare consideredtobegenerallylessadvancedinJapanthaninAmericaor Europe.2?Althoughindustrialrobotswereoriginallydevelopedas devicesforsimplyhandlingobjectstodaytheircommonestusesareformore skilledworklikewelding焊接spray-paintingandassemblingcomponents.3 ?InBritainrobotsalesappropriatelypeakedin1984buthavebeen decliningeversince.ThisispartlybecauseBritishwageratesaretoolowto makerobotsfinanciallyattractiveandpartlybecauseengineersnowhavemore experiencewithrobotsandaremoreawareofthedifficultiesofintroducing themeffectively.4?Ithasbeencalculatedthatarobotusesonaverage about100timesmoreenergythanahumantodoanequivalentjob.5?It isestimatedthat20%ofallcomicbookheroesinJapanarerobots.Thisisan enormousnumberbecausecomicsaresopopularthattheymakeupathirdofall materialpublishedinJapan.6?Thereliabilityofrobotsismeasuredin theirM.T.B.F.ormeantimebetweenfailures.Thishasrisenfromabout250 hoursinthemid-1970stoabout10000hourstodayequivalenttoworking18 hoursadayfortwoyears.Onewayrobotmanufacturershaveincreased reliabilityistotesteverysinglecomponenttheybuyinsteadofthenormal procedureofjusttestingasmallsample.7?Thebiggestsinglebenefit ofintroducingrobotsclaimedbyJapanesecompaniesisthattheyincrease qualitycontrol.Onceprogrammedtherobotscanworkmoreaccuratelyand consistentlythanhumanswhocangettiredandbored.Paragraph6______
{{*HTML*}}??阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择 5组文字将其分别放回文章原有位置以恢复文章原貌 {{B}}?????????? ??????????? ?SuccessStories{{/B}}??Oneofthemostsuccessfulfashion companiesintheworldisBenetton.TheBenettonfamilyopenedtheirfirstshop inItalyin1968.{{U}}?46?{{/U}}Benettonfollowedfourmarketing principlesinordertoachievetheirsuccess.??Thefirst principleisConsumerConcept.Tobuildasuccessfulbusinessyouhaveto developproductsaroundthingspeoplevalueespeciallyquality.{{U}}?47 ?{{/U}}Hecreatedclothestomatchpeople’swants:thestyleiscasual;the colorsandpatternsarebold;andthequalityisexcellent.??The SystemLinkisanotherfeatureofgoodmarketing.ForBenettonthismeans waitingtogetinformationaboutwhatcustomerslikeandwhattheydislike beforemakingtheclothes.{{U}}?48?{{/U}}.??The InformationLinkmeansmakingsurethecompanyrespondsquicklytopeople’s demands.{{U}}?49?{{/U}}Thisinformationisthensenttothemain officeinItaly.Benettoncanusethisinformationtoidentifypopularproducts andtocontinuemakingthem;itcanalsoidentifylesspopularproductsandstop makingthem.??AfinalimportantmarketingprincipleistheRetail Link.ThereareBenenttonstoresincountriesaroundtheworld.Allthestores havethesameclothingthesamewindowdisplaysandthesameapproachto sales.{{U}}?50?{{/U}}.??Thethingspeoplelikeabout Benettonstoresarethatthequalityisalwayshighandthepricesaregenerally low.Andthatspellssuccess.A.ThefounderofBenettonbeganbyasking peoplewhattheywanted.B.Thereusedtobeagoodreasonforthis.C. WhensomethingissoldataBenettonstorethestorerecordsinformationabout thetypesizeandcoloroftheitem.D.TodaythereareBenettonshopsin majorcitiesallovertheworld.E.Thismeansthatcustomerscangointoany Benettonstoreintheworldandbesureofwhattheyarebuying.F.Inother wordsBenetton’sclothesaremadetoorder.{{*HTML*}}
{{*HTML*}}? ?阅读下面这篇短文短文后列出了7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C {{B}}??????? ??????????? ???TheThreattoKiribati{{/B}}??Thepeopleof Kiribatiareafraidthatonedayinthenot-too-distantfuturetheircountry willdisappearfromthefaceoftheearth-literallySeveraltimesthisyear thePacificislandnationhasbeenfloodedbyasuddenhightide.Thesetides whichsweptacrosstheislandanddestroyedhousescamewhentherewasneither windnorrain.Thisneverhappenedbeforesaytheoldercitizensof Kiribati.??Whatiscausingthesemysterioushightides?The answermaywellbeglobalwarming.Whenfuelslikeoilandcoalarebeing burnedpollutants污染物arereleased;thesepollutantstrapheatintheearth’s atmosphere.Warmertemperaturescausewatertoexpandandalsocreatemorewater bymeltingglaciers冰川andpolar极地的icecaps.??Ifthetrend continuesscientistssaymanycountrieswillsuffer.Bangladeshforexample mightloseone-fifthofitsland.Thecoral珊瑚islandnationsofthePacific likeKiribatiandtheMarshallIslandshoweverwouldfaceanevenworsefate- theywouldbeswallowedbythesea.Thelossofthesecoralislandswouldbe everyone’sloss.Coralformationsarehometomorespeciesthananyotherplace onearth.??Thepeopleofthesenationsfeelfrustrated.Thesea onwhichtheireconomieshavealwaysbeenbasedissuddenlythreateningtheir existence.Theydon’thavethemoneyforexpensivetechnologicalsolutionslike seawalls.Andtheyhavenocontroloverthepollutantswhicharebeingreleased mainlybyactivitiesinlargeindustrializedcountries.Alltheycandoisto hopethatindustrializedcountrieswilltakestepstoreduce pollution.Theheatreleasedbyburningoilandcoalisthedirectcauseofglobalwarming.
{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ????????SingingAlarmsCouldSave theBlind{{/B}}??Ifyoucannotseeyoumaynotbeabletofind yourwayoutofaburningbuilding-andthatcouldbefatal.AcompanyinLeeds could{{U}}?51?{{/U}}allthatwithdirectional定向的soundalarms capableofguidingyoutotheexit.??SoundAlertacompanyrun {{U}}?52?{{/U}}theUniversityofLeedsisinstallingthealarmsina residentialhomefor{{U}}?53?{{/U}}peopleinSommersetandaresource centrefortheblindinCumbria.Thealarmsproducea{{U}}?54?{{/U}} rangeoffrequenciesthatenablethebrainto{{U}}?55?{{/U}}wherethe soundiscomingfrom.??DeborahWithingtonofSoundAlertsays thatthealarmsusemostofthefrequenciesthatcanbe{{U}}?56?{{/U}} byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic 静电噪音ontheradioshesays.itslife-savingpotentialis{{U}}?57 ?{{/U}}.??Sheconductedanexperimentinwhichpeoplewere filmedbythermal-imaging热效应成像camerastryingtofindtheir{{U}}?58 ?{{/U}}outofalargesmoke-filledroom.It{{U}}?59?{{/U}}them nearlyfourminutestofindthedoorwithoutasoundalarm{{U}}?60 ?{{/U}}only15secondswithone.??Withingtonstudieshowthe brain{{U}}?61?{{/U}}soundsattheuniversity.Shesaysthatthe {{U}}?62?{{/U}}ofawidebandoffrequenciescanbepinpointed精确地确定 moreeasilythanthesourceofanarrowband.Alarms{{U}}?63?{{/U}}on thesameconcepthavealreadybeeninstalledonemergencyvehicles.? ?Thealarmswillalsoincluderisingorfallingfrequenciesto {{U}}?64?{{/U}}whetherpeopleshouldgoupordownstairs.Theywere {{U}}?65?{{/U}}withtheaidofalargegrantfromBritishNuclear Fuels.
{{*HTML*}}{{B}}第二篇{{/B}} {{B}}??????? ??NewFoodsandtheNewWorld{{/B}}??Inthelast500 yearsnothingaboutpeople--nottheirclothesideasorlanguages--has changedasmuchaswhattheyeat.Theoriginalchocolatedrinkwasmadefromthe seedsofthecocoatree可可树bySouthAmericanIndians.TheSpanishintroduced ittotherestoftheworldduringthe1500’s.Andalthoughitwasvery expensiveitquicklybecamefashionable.InLondonshopswherechocolate drinkswereservedbecameimportantmeetingplaces.Somestillexist today.??ThepotatoisalsofromtheNewWorld.Around1600the SpanishbroughtitfromPerutoEuropewhereitsoonwaswidelygrown.Ireland becamesodependentonitthatthousandsofIrishpeoplestarvedwhenthecrop failedduringthePotatoFamine饥荒of1845-1846andthousandsmorewere forcedtoleavetheirhomelandandmovetoAmerica.??Thereare manyotherfoodsthathavetraveledfromSouthAmericatotheOldWorld.But someotherswentintheoppositedirection.Brazilisnowtheworld’slargest growerofcoffeeandcoffeeisanimportantcropinColombiaandotherSouth Americancountries.ButitisnativetoEthiopiaacountryinAfrica.Itwas firstmadeintoadrinkbyArabsduringthe1400%.??Accordingto anArabiclegendcoffeewasdiscoveredwhenapersonnamedKaldinoticedthat hisgoatswereattractedtotheredberriesonacoffeebush.Hetriedoneand experiencedthewide-awakefeelingthatonethirdoftheworld’spopulation nowstartsthedaywith.Accordingtothepassagewhichofthefollowinghaschangedthemostinthelast500years?
{{*HTML*}}{{B}}第二篇{{/B}} {{B}}??????? ??NewFoodsandtheNewWorld{{/B}}??Inthelast500 yearsnothingaboutpeople--nottheirclothesideasorlanguages--has changedasmuchaswhattheyeat.Theoriginalchocolatedrinkwasmadefromthe seedsofthecocoatree可可树bySouthAmericanIndians.TheSpanishintroduced ittotherestoftheworldduringthe1500’s.Andalthoughitwasvery expensiveitquicklybecamefashionable.InLondonshopswherechocolate drinkswereservedbecameimportantmeetingplaces.Somestillexist today.??ThepotatoisalsofromtheNewWorld.Around1600the SpanishbroughtitfromPerutoEuropewhereitsoonwaswidelygrown.Ireland becamesodependentonitthatthousandsofIrishpeoplestarvedwhenthecrop failedduringthePotatoFamine饥荒of1845-1846andthousandsmorewere forcedtoleavetheirhomelandandmovetoAmerica.??Thereare manyotherfoodsthathavetraveledfromSouthAmericatotheOldWorld.But someotherswentintheoppositedirection.Brazilisnowtheworld’slargest growerofcoffeeandcoffeeisanimportantcropinColombiaandotherSouth Americancountries.ButitisnativetoEthiopiaacountryinAfrica.Itwas firstmadeintoadrinkbyArabsduringthe1400%.??Accordingto anArabiclegendcoffeewasdiscoveredwhenapersonnamedKaldinoticedthat hisgoatswereattractedtotheredberriesonacoffeebush.Hetriedoneand experiencedthewide-awakefeelingthatonethirdoftheworld’spopulation nowstartsthedaywith.WhichofthefollowingstatementsisNOTtrueaccordingtothepassage?
{{*HTML*}}? ?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235和6段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个止确选项分别完成每个句子 {{B}}?????????? ??????????? ?Robots{{/B}}1?Themostsophisticated先进的Japaneserobots whichhavevisionsystemsandworkatveryhighspeedsarestillbasedon Americandesigns.Studiesofrobotsparticularlycomputercontrolsoftwareare consideredtobegenerallylessadvancedinJapanthaninAmericaor Europe.2?Althoughindustrialrobotswereoriginallydevelopedas devicesforsimplyhandlingobjectstodaytheircommonestusesareformore skilledworklikewelding焊接spray-paintingandassemblingcomponents.3 ?InBritainrobotsalesappropriatelypeakedin1984buthavebeen decliningeversince.ThisispartlybecauseBritishwageratesaretoolowto makerobotsfinanciallyattractiveandpartlybecauseengineersnowhavemore experiencewithrobotsandaremoreawareofthedifficultiesofintroducing themeffectively.4?Ithasbeencalculatedthatarobotusesonaverage about100timesmoreenergythanahumantodoanequivalentjob.5?It isestimatedthat20%ofallcomicbookheroesinJapanarerobots.Thisisan enormousnumberbecausecomicsaresopopularthattheymakeupathirdofall materialpublishedinJapan.6?Thereliabilityofrobotsismeasuredin theirM.T.B.F.ormeantimebetweenfailures.Thishasrisenfromabout250 hoursinthemid-1970stoabout10000hourstodayequivalenttoworking18 hoursadayfortwoyears.Onewayrobotmanufacturershaveincreased reliabilityistotesteverysinglecomponenttheybuyinsteadofthenormal procedureofjusttestingasmallsample.7?Thebiggestsinglebenefit ofintroducingrobotsclaimedbyJapanesecompaniesisthattheyincrease qualitycontrol.Onceprogrammedtherobotscanworkmoreaccuratelyand consistentlythanhumanswhocangettiredandbored.Itisclaimedthatintroducingrobotsis______
{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ????????SingingAlarmsCouldSave theBlind{{/B}}??Ifyoucannotseeyoumaynotbeabletofind yourwayoutofaburningbuilding-andthatcouldbefatal.AcompanyinLeeds could{{U}}?51?{{/U}}allthatwithdirectional定向的soundalarms capableofguidingyoutotheexit.??SoundAlertacompanyrun {{U}}?52?{{/U}}theUniversityofLeedsisinstallingthealarmsina residentialhomefor{{U}}?53?{{/U}}peopleinSommersetandaresource centrefortheblindinCumbria.Thealarmsproducea{{U}}?54?{{/U}} rangeoffrequenciesthatenablethebrainto{{U}}?55?{{/U}}wherethe soundiscomingfrom.??DeborahWithingtonofSoundAlertsays thatthealarmsusemostofthefrequenciesthatcanbe{{U}}?56?{{/U}} byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic 静电噪音ontheradioshesays.itslife-savingpotentialis{{U}}?57 ?{{/U}}.??Sheconductedanexperimentinwhichpeoplewere filmedbythermal-imaging热效应成像camerastryingtofindtheir{{U}}?58 ?{{/U}}outofalargesmoke-filledroom.It{{U}}?59?{{/U}}them nearlyfourminutestofindthedoorwithoutasoundalarm{{U}}?60 ?{{/U}}only15secondswithone.??Withingtonstudieshowthe brain{{U}}?61?{{/U}}soundsattheuniversity.Shesaysthatthe {{U}}?62?{{/U}}ofawidebandoffrequenciescanbepinpointed精确地确定 moreeasilythanthesourceofanarrowband.Alarms{{U}}?63?{{/U}}on thesameconcepthavealreadybeeninstalledonemergencyvehicles.? ?Thealarmswillalsoincluderisingorfallingfrequenciesto {{U}}?64?{{/U}}whetherpeopleshouldgoupordownstairs.Theywere {{U}}?65?{{/U}}withtheaidofalargegrantfromBritishNuclear Fuels.
{{*HTML*}}??阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择 5组文字将其分别放回文章原有位置以恢复文章原貌 {{B}}?????????? ??????????? ?SuccessStories{{/B}}??Oneofthemostsuccessfulfashion companiesintheworldisBenetton.TheBenettonfamilyopenedtheirfirstshop inItalyin1968.{{U}}?46?{{/U}}Benettonfollowedfourmarketing principlesinordertoachievetheirsuccess.??Thefirst principleisConsumerConcept.Tobuildasuccessfulbusinessyouhaveto developproductsaroundthingspeoplevalueespeciallyquality.{{U}}?47 ?{{/U}}Hecreatedclothestomatchpeople’swants:thestyleiscasual;the colorsandpatternsarebold;andthequalityisexcellent.??The SystemLinkisanotherfeatureofgoodmarketing.ForBenettonthismeans waitingtogetinformationaboutwhatcustomerslikeandwhattheydislike beforemakingtheclothes.{{U}}?48?{{/U}}.??The InformationLinkmeansmakingsurethecompanyrespondsquicklytopeople’s demands.{{U}}?49?{{/U}}Thisinformationisthensenttothemain officeinItaly.Benettoncanusethisinformationtoidentifypopularproducts andtocontinuemakingthem;itcanalsoidentifylesspopularproductsandstop makingthem.??AfinalimportantmarketingprincipleistheRetail Link.ThereareBenenttonstoresincountriesaroundtheworld.Allthestores havethesameclothingthesamewindowdisplaysandthesameapproachto sales.{{U}}?50?{{/U}}.??Thethingspeoplelikeabout Benettonstoresarethatthequalityisalwayshighandthepricesaregenerally low.Andthatspellssuccess.A.ThefounderofBenettonbeganbyasking peoplewhattheywanted.B.Thereusedtobeagoodreasonforthis.C. WhensomethingissoldataBenettonstorethestorerecordsinformationabout thetypesizeandcoloroftheitem.D.TodaythereareBenettonshopsin majorcitiesallovertheworld.E.Thismeansthatcustomerscangointoany Benettonstoreintheworldandbesureofwhattheyarebuying.F.Inother wordsBenetton’sclothesaremadetoorder.
{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ????????SingingAlarmsCouldSave theBlind{{/B}}??Ifyoucannotseeyoumaynotbeabletofind yourwayoutofaburningbuilding-andthatcouldbefatal.AcompanyinLeeds could{{U}}?51?{{/U}}allthatwithdirectional定向的soundalarms capableofguidingyoutotheexit.??SoundAlertacompanyrun {{U}}?52?{{/U}}theUniversityofLeedsisinstallingthealarmsina residentialhomefor{{U}}?53?{{/U}}peopleinSommersetandaresource centrefortheblindinCumbria.Thealarmsproducea{{U}}?54?{{/U}} rangeoffrequenciesthatenablethebrainto{{U}}?55?{{/U}}wherethe soundiscomingfrom.??DeborahWithingtonofSoundAlertsays thatthealarmsusemostofthefrequenciesthatcanbe{{U}}?56?{{/U}} byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic 静电噪音ontheradioshesays.itslife-savingpotentialis{{U}}?57 ?{{/U}}.??Sheconductedanexperimentinwhichpeoplewere filmedbythermal-imaging热效应成像camerastryingtofindtheir{{U}}?58 ?{{/U}}outofalargesmoke-filledroom.It{{U}}?59?{{/U}}them nearlyfourminutestofindthedoorwithoutasoundalarm{{U}}?60 ?{{/U}}only15secondswithone.??Withingtonstudieshowthe brain{{U}}?61?{{/U}}soundsattheuniversity.Shesaysthatthe {{U}}?62?{{/U}}ofawidebandoffrequenciescanbepinpointed精确地确定 moreeasilythanthesourceofanarrowband.Alarms{{U}}?63?{{/U}}on thesameconcepthavealreadybeeninstalledonemergencyvehicles.? ?Thealarmswillalsoincluderisingorfallingfrequenciesto {{U}}?64?{{/U}}whetherpeopleshouldgoupordownstairs.Theywere {{U}}?65?{{/U}}withtheaidofalargegrantfromBritishNuclear Fuels.
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{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ????????SingingAlarmsCouldSave theBlind{{/B}}??Ifyoucannotseeyoumaynotbeabletofind yourwayoutofaburningbuilding-andthatcouldbefatal.AcompanyinLeeds could{{U}}?51?{{/U}}allthatwithdirectional定向的soundalarms capableofguidingyoutotheexit.??SoundAlertacompanyrun {{U}}?52?{{/U}}theUniversityofLeedsisinstallingthealarmsina residentialhomefor{{U}}?53?{{/U}}peopleinSommersetandaresource centrefortheblindinCumbria.Thealarmsproducea{{U}}?54?{{/U}} rangeoffrequenciesthatenablethebrainto{{U}}?55?{{/U}}wherethe soundiscomingfrom.??DeborahWithingtonofSoundAlertsays thatthealarmsusemostofthefrequenciesthatcanbe{{U}}?56?{{/U}} byhumans.Itisaburstofwhitenoisethatpeoplesaysoundslikestatic 静电噪音ontheradioshesays.itslife-savingpotentialis{{U}}?57 ?{{/U}}.??Sheconductedanexperimentinwhichpeoplewere filmedbythermal-imaging热效应成像camerastryingtofindtheir{{U}}?58 ?{{/U}}outofalargesmoke-filledroom.It{{U}}?59?{{/U}}them nearlyfourminutestofindthedoorwithoutasoundalarm{{U}}?60 ?{{/U}}only15secondswithone.??Withingtonstudieshowthe brain{{U}}?61?{{/U}}soundsattheuniversity.Shesaysthatthe {{U}}?62?{{/U}}ofawidebandoffrequenciescanbepinpointed精确地确定 moreeasilythanthesourceofanarrowband.Alarms{{U}}?63?{{/U}}on thesameconcepthavealreadybeeninstalledonemergencyvehicles.? ?Thealarmswillalsoincluderisingorfallingfrequenciesto {{U}}?64?{{/U}}whetherpeopleshouldgoupordownstairs.Theywere {{U}}?65?{{/U}}withtheaidofalargegrantfromBritishNuclear Fuels.
{{*HTML*}}??阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择 5组文字将其分别放回文章原有位置以恢复文章原貌 {{B}}?????????? ??????????? ?SuccessStories{{/B}}??Oneofthemostsuccessfulfashion companiesintheworldisBenetton.TheBenettonfamilyopenedtheirfirstshop inItalyin1968.{{U}}?46?{{/U}}Benettonfollowedfourmarketing principlesinordertoachievetheirsuccess.??Thefirst principleisConsumerConcept.Tobuildasuccessfulbusinessyouhaveto developproductsaroundthingspeoplevalueespeciallyquality.{{U}}?47 ?{{/U}}Hecreatedclothestomatchpeople’swants:thestyleiscasual;the colorsandpatternsarebold;andthequalityisexcellent.??The SystemLinkisanotherfeatureofgoodmarketing.ForBenettonthismeans waitingtogetinformationaboutwhatcustomerslikeandwhattheydislike beforemakingtheclothes.{{U}}?48?{{/U}}.??The InformationLinkmeansmakingsurethecompanyrespondsquicklytopeople’s demands.{{U}}?49?{{/U}}Thisinformationisthensenttothemain officeinItaly.Benettoncanusethisinformationtoidentifypopularproducts andtocontinuemakingthem;itcanalsoidentifylesspopularproductsandstop makingthem.??AfinalimportantmarketingprincipleistheRetail Link.ThereareBenenttonstoresincountriesaroundtheworld.Allthestores havethesameclothingthesamewindowdisplaysandthesameapproachto sales.{{U}}?50?{{/U}}.??Thethingspeoplelikeabout Benettonstoresarethatthequalityisalwayshighandthepricesaregenerally low.Andthatspellssuccess.A.ThefounderofBenettonbeganbyasking peoplewhattheywanted.B.Thereusedtobeagoodreasonforthis.C. WhensomethingissoldataBenettonstorethestorerecordsinformationabout thetypesizeandcoloroftheitem.D.TodaythereareBenettonshopsin majorcitiesallovertheworld.E.Thismeansthatcustomerscangointoany Benettonstoreintheworldandbesureofwhattheyarebuying.F.Inother wordsBenetton’sclothesaremadetoorder.
{{*HTML*}}? ?阅读下面这篇短文短文后列出了7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C {{B}}??????? ??????????? ???TheThreattoKiribati{{/B}}??Thepeopleof Kiribatiareafraidthatonedayinthenot-too-distantfuturetheircountry willdisappearfromthefaceoftheearth-literallySeveraltimesthisyear thePacificislandnationhasbeenfloodedbyasuddenhightide.Thesetides whichsweptacrosstheislandanddestroyedhousescamewhentherewasneither windnorrain.Thisneverhappenedbeforesaytheoldercitizensof Kiribati.??Whatiscausingthesemysterioushightides?The answermaywellbeglobalwarming.Whenfuelslikeoilandcoalarebeing burnedpollutants污染物arereleased;thesepollutantstrapheatintheearth’s atmosphere.Warmertemperaturescausewatertoexpandandalsocreatemorewater bymeltingglaciers冰川andpolar极地的icecaps.??Ifthetrend continuesscientistssaymanycountrieswillsuffer.Bangladeshforexample mightloseone-fifthofitsland.Thecoral珊瑚islandnationsofthePacific likeKiribatiandtheMarshallIslandshoweverwouldfaceanevenworsefate- theywouldbeswallowedbythesea.Thelossofthesecoralislandswouldbe everyone’sloss.Coralformationsarehometomorespeciesthananyotherplace onearth.??Thepeopleofthesenationsfeelfrustrated.Thesea onwhichtheireconomieshavealwaysbeenbasedissuddenlythreateningtheir existence.Theydon’thavethemoneyforexpensivetechnologicalsolutionslike seawalls.Andtheyhavenocontroloverthepollutantswhicharebeingreleased mainlybyactivitiesinlargeindustrializedcountries.Alltheycandoisto hopethatindustrializedcountrieswilltakestepstoreduce pollution.ThecoralislandnationsofthePacifichavealonghistoryofcivilization.
{{*HTML*}}? ?阅读下面这篇短文短文后列出了7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C {{B}}??????? ??????????? ???TheThreattoKiribati{{/B}}??Thepeopleof Kiribatiareafraidthatonedayinthenot-too-distantfuturetheircountry willdisappearfromthefaceoftheearth-literallySeveraltimesthisyear thePacificislandnationhasbeenfloodedbyasuddenhightide.Thesetides whichsweptacrosstheislandanddestroyedhousescamewhentherewasneither windnorrain.Thisneverhappenedbeforesaytheoldercitizensof Kiribati.??Whatiscausingthesemysterioushightides?The answermaywellbeglobalwarming.Whenfuelslikeoilandcoalarebeing burnedpollutants污染物arereleased;thesepollutantstrapheatintheearth’s atmosphere.Warmertemperaturescausewatertoexpandandalsocreatemorewater bymeltingglaciers冰川andpolar极地的icecaps.??Ifthetrend continuesscientistssaymanycountrieswillsuffer.Bangladeshforexample mightloseone-fifthofitsland.Thecoral珊瑚islandnationsofthePacific likeKiribatiandtheMarshallIslandshoweverwouldfaceanevenworsefate- theywouldbeswallowedbythesea.Thelossofthesecoralislandswouldbe everyone’sloss.Coralformationsarehometomorespeciesthananyotherplace onearth.??Thepeopleofthesenationsfeelfrustrated.Thesea onwhichtheireconomieshavealwaysbeenbasedissuddenlythreateningtheir existence.Theydon’thavethemoneyforexpensivetechnologicalsolutionslike seawalls.Andtheyhavenocontroloverthepollutantswhicharebeingreleased mainlybyactivitiesinlargeindustrializedcountries.Alltheycandoisto hopethatindustrializedcountrieswilltakestepstoreduce pollution.ThepeopleofKiribatiworrythatonedaytheircountrywillbetakenawaybyasuddenhightide.
{{*HTML*}}? ?阅读下面这篇短文短文后列出了7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C {{B}}??????? ??????????? ???TheThreattoKiribati{{/B}}??Thepeopleof Kiribatiareafraidthatonedayinthenot-too-distantfuturetheircountry willdisappearfromthefaceoftheearth-literallySeveraltimesthisyear thePacificislandnationhasbeenfloodedbyasuddenhightide.Thesetides whichsweptacrosstheislandanddestroyedhousescamewhentherewasneither windnorrain.Thisneverhappenedbeforesaytheoldercitizensof Kiribati.??Whatiscausingthesemysterioushightides?The answermaywellbeglobalwarming.Whenfuelslikeoilandcoalarebeing burnedpollutants污染物arereleased;thesepollutantstrapheatintheearth’s atmosphere.Warmertemperaturescausewatertoexpandandalsocreatemorewater bymeltingglaciers冰川andpolar极地的icecaps.??Ifthetrend continuesscientistssaymanycountrieswillsuffer.Bangladeshforexample mightloseone-fifthofitsland.Thecoral珊瑚islandnationsofthePacific likeKiribatiandtheMarshallIslandshoweverwouldfaceanevenworsefate- theywouldbeswallowedbythesea.Thelossofthesecoralislandswouldbe everyone’sloss.Coralformationsarehometomorespeciesthananyotherplace onearth.??Thepeopleofthesenationsfeelfrustrated.Thesea onwhichtheireconomieshavealwaysbeenbasedissuddenlythreateningtheir existence.Theydon’thavethemoneyforexpensivetechnologicalsolutionslike seawalls.Andtheyhavenocontroloverthepollutantswhicharebeingreleased mainlybyactivitiesinlargeindustrializedcountries.Alltheycandoisto hopethatindustrializedcountrieswilltakestepstoreduce pollution.Someindustrializedcountriesareunwillingtospendmoneyinreducingpollution.
{{*HTML*}}{{B}}第三篇{{/B}} {{B}}??????? ??London’sFirstLightRailSystem{{/B}}??TheDocklands LightRailwayDLRtookjustthreeyearstobuildatacostof￡77million.It isLondon’sfirstLightRailSystembutitsroutefollowsthatofanumberof olderlineswhichcarriedthenineteenthcenturyrailwaysthroughthecrowded districtsoftheEastEnd.??Thesectionofthelinefromthe TowerGatewayStationtoPoplarfollowsthelineofoneofLondon’searliest railwaystheLondon&Blackwell1840acable-drawnrailwaylater convertedtosteamwhichcarriedpassengerstosteamshipsatBlackwellPier andprovidedtransportforthemessengersandclerkswhowentbackwardsand forwardsbetweenthedocks码头andthecityeveryday.??From PoplartoIslandGardensanewlinecrosseshighabovethedockwatersand thenjoinstheoldtrackoftheMillwallExtensionRailwaybuilttoservicethe MillwallDocks1868andtoprovidetransportforworkersinthelocal factories.Thislinewashorse-drawnforpartofitsmuteuntilthe 1880s.??ThePoplartoStratfordsectionoftheDLRroutewas firstdevelopedbytheNorthLondonRailwaybuiltinthe1850stolinktheWest andEastIndiaDockswiththemanufacturingdistrictsoftheMidlandsandNorth ofEngland.Therewere.majorrailwayworksandsidings岔线atBowuntil recently.??Thetrainsareautomaticallycontrolledfromacentral computerwhichdealswithallsignalingandothersafetyfactorsaswellas adjustingspeedstokeepwithinthetimetable;onboardeachvehicleTrain Captainswhoarealsofullyqualifieddriversareequippedwithtwo-wayradios tomaintaincontactwithcentralcontrol.Therearepassengerliftsand self-serviceticketmachinesateverystation.ItappearsthatthePoplartoStratfordsectionoftheDLRroutewasoriginallydevelopedto______
{{*HTML*}}? ?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235和6段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个止确选项分别完成每个句子 {{B}}?????????? ??????????? ?Robots{{/B}}1?Themostsophisticated先进的Japaneserobots whichhavevisionsystemsandworkatveryhighspeedsarestillbasedon Americandesigns.Studiesofrobotsparticularlycomputercontrolsoftwareare consideredtobegenerallylessadvancedinJapanthaninAmericaor Europe.2?Althoughindustrialrobotswereoriginallydevelopedas devicesforsimplyhandlingobjectstodaytheircommonestusesareformore skilledworklikewelding焊接spray-paintingandassemblingcomponents.3 ?InBritainrobotsalesappropriatelypeakedin1984buthavebeen decliningeversince.ThisispartlybecauseBritishwageratesaretoolowto makerobotsfinanciallyattractiveandpartlybecauseengineersnowhavemore experiencewithrobotsandaremoreawareofthedifficultiesofintroducing themeffectively.4?Ithasbeencalculatedthatarobotusesonaverage about100timesmoreenergythanahumantodoanequivalentjob.5?It isestimatedthat20%ofallcomicbookheroesinJapanarerobots.Thisisan enormousnumberbecausecomicsaresopopularthattheymakeupathirdofall materialpublishedinJapan.6?Thereliabilityofrobotsismeasuredin theirM.T.B.F.ormeantimebetweenfailures.Thishasrisenfromabout250 hoursinthemid-1970stoabout10000hourstodayequivalenttoworking18 hoursadayfortwoyears.Onewayrobotmanufacturershaveincreased reliabilityistotesteverysinglecomponenttheybuyinsteadofthenormal procedureofjusttestingasmallsample.7?Thebiggestsinglebenefit ofintroducingrobotsclaimedbyJapanesecompaniesisthattheyincrease qualitycontrol.Onceprogrammedtherobotscanworkmoreaccuratelyand consistentlythanhumanswhocangettiredandbored.Paragraph3______
{{*HTML*}}? ?下面有3篇短文每篇短文后有5道题每道题后面有4个选项请根据文章的内容从每题所给的4个选项中选择1个最佳答案{{B}}第一篇{{/B}} {{B}}??????? ?????EtaCarinae{{/B}}??Aspossibly thegalaxy’s银河mostmassivestarEtaCarinaeisnowengaginginsomevery unusualbehaviour.AustralianastronomersbeingintheSouthernHemisphere 半球areabletoobserveitclearly.??Inthe19thcenturyEta Carinaewasforatimethethirdbrighteststarinthesky.Ithasnowbecome lessbrightsothatbinoculars双筒望远镜areneededtoseeit.Itseemstobe brighteningandbecominglessbrightoveraperiodofmanyyearssaidDrBob DuncanfromtheAustraliaTelescopeNationalFacility.??Whileit isnotunusualforstarstovaryinbrightnesstheperiodisusuallymuch shorter.Since1992ithasbecomefourtimesbrighterandthenlastyearit begantodropdramaticallyhesaid.??Theprobleminobserving EtaCarinaeisthatithasbeensurroundedbyacloudofgasanddustmakingit hardtoseethestardirectly.Howeverradiowavesandinfraredlight红外线can passthroughthiscloudsotelescopesthatreceivethesewavelengthscan observewhatisoccurring.??EtaCarinaeisofparticularinterest toastronomersbecauseitseemstobeinitsdeaththroes剧痛.Beingsolarge itwillendupasasupernova超新星.Therehasnotbeenasupernovainour galaxysincetheinventionofthetelescope.Whilea1987explosioninanearby galaxygaveastronomersplentyofvaluabledatatheyarehungryforaneven closerlook.??EtaCarinaehasotheruniquefeaturesandisthe onlystarknowntoproduceanultraviolet紫外线laserthatisbrighterthanthat producedbytheSun.Lasershavebeenobservedinotherfrequenciesfromafew stars.ThewordperiodinParagraph3meansthelengthoftime
{{*HTML*}}{{B}}第二篇{{/B}} {{B}}??????? ??NewFoodsandtheNewWorld{{/B}}??Inthelast500 yearsnothingaboutpeople--nottheirclothesideasorlanguages--has changedasmuchaswhattheyeat.Theoriginalchocolatedrinkwasmadefromthe seedsofthecocoatree可可树bySouthAmericanIndians.TheSpanishintroduced ittotherestoftheworldduringthe1500’s.Andalthoughitwasvery expensiveitquicklybecamefashionable.InLondonshopswherechocolate drinkswereservedbecameimportantmeetingplaces.Somestillexist today.??ThepotatoisalsofromtheNewWorld.Around1600the SpanishbroughtitfromPerutoEuropewhereitsoonwaswidelygrown.Ireland becamesodependentonitthatthousandsofIrishpeoplestarvedwhenthecrop failedduringthePotatoFamine饥荒of1845-1846andthousandsmorewere forcedtoleavetheirhomelandandmovetoAmerica.??Thereare manyotherfoodsthathavetraveledfromSouthAmericatotheOldWorld.But someotherswentintheoppositedirection.Brazilisnowtheworld’slargest growerofcoffeeandcoffeeisanimportantcropinColombiaandotherSouth Americancountries.ButitisnativetoEthiopiaacountryinAfrica.Itwas firstmadeintoadrinkbyArabsduringthe1400%.??Accordingto anArabiclegendcoffeewasdiscoveredwhenapersonnamedKaldinoticedthat hisgoatswereattractedtotheredberriesonacoffeebush.Hetriedoneand experiencedthewide-awakefeelingthatonethirdoftheworld’spopulation nowstartsthedaywith.ThousandsofIrishpeoplestarvedduringthePotatoFaminebecause
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