参考答案

正确答案：A
Goodevening.Welcometo"TravelogueNight".[29]TonightourspotlightisonSantaCatalinaIsland,located26milesupthesouthernCaliforniacoast.ForyearstheislandwithitstinyresorttownofAvalon,hasbeenahavenforcampers,fishersandswimmers.TheislandwasdiscoveredbyaPortugueseexplorerin1542.Duringitshistory,SantaCatalinapassedthroughthehandsofmanynations.[30]In1919,afterafiredestroyedmuchofAvalon,chewing-gummagnateWilliamWrigleyJr.purchasedtheislandwiththreemilliondollars.[31]Wrigleyboughttheislandprimarilyasthetrainingcampforhisbaseballteam,theChicagoCubs.Soon,however,themillionairebecameinterestedindevelopingCatalinafurtherasabeautifulpeacefulretreatwithsomethingforeveryone.Duringthenexttenyears,hotelswereconstructed,thegolfcourseenlarged,andevenaspecialsteamertheCatalinawasbuilttocarry2,000passengers.In1928,Mr.WrigleydecidedtobuildahugedancehallcalledtheCasinoBallRoom.Withtheballroomdancecrazesweepingthecountrythenthecasinobecamethefavoritevenueofbignamebandleaders.[32]Themostfamousmusiciansandsingersofthe1930sand1940splayedthereforthosewhoenjoyeddancingtotheirbigbandtunes.YoucanseeforyourselfwhatCatalinalookslikeasweturndownthelightsnow.29.Whatisthemainpurposeofthetalk?30.WhowasWilliamWrigleyJr.?31.Initially,whatwasWrigleyspurposeofbuyingtheisland?32.WhatkindofmusicwaspopularonSantaCatalinaIsland?【整体预测】快速浏览各题选项，根据其中的关键词SantaCatalinaIsland、baseball、build、establish、retreat、camp、music等可以推测，短文可能与某一度假小岛有关，需重点关注与小岛的建没、棒球、休闲、音乐等有关的信息。【解题思路】1．四项均为不定式短语。2．四项均合有与介绍有关的词汇(givebackgroundinformation，tell，introduce)。3．两项含有SantaCatalina。结论：由于本题为该短文的第一题，因此很有可能考查讲话者的意图，即短文的主旨。【解析】讲话者在开头处就介绍了主题：“今天的《旅行见闻之夜》将带大家来到圣卡塔利娜岛。”接着，讲话者介绍了小岛的地理位置、历史、后期建设开发等等，可见应选A。