新编六级听力每日练习-第412期.docx

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新编六级听力每日练习第412期

ConversationTwo22.A.Howtocareforpreciousmetals.B.Astandardunitformeasuringweight.C.Thevalueofpreciousmetals.D.Useofthemetricsystem.23.A.Tochecktheaccuracyofscales.B.Tocalculatethedensityofothermetals.C.Toobservechangesintheatmosphere.D.Tomeasureamountsofrainfall.24.A.Someonespilledwateronit.B.Itwasnotveryendurable.C.Itwasmadeoflowqualitymetal.D.Thestandardformeasuringhadchanged.25.A.Itisasmallamounttopayforsomuchpreciousmetal.B.Itisdifficulttojudgethevalueoftheobject.C.Itistoohighforsuchalightweight.D.Itisreasonableforanobjectwithsuchanimportantfunction.ConversationTwoW:Dr.Thomas?ThisisKeetBradleyfromtheDailyNews.[22]I'dliketoaskyousomequestionsaboutthenewofficialstandardweightthatyoupurchased.M:I'dbehappytohelpyou.Whatwouldyouliketoknow?W:Firstofall,howwasthestandardweightused?M:Well,[23]peopleinourdepartmentuseittocheckthescalesalloverthecountry.Thedepartmentofweightsandmeasures,weareagovernmentagency.It'sourresponsibility[23]toseethatallthescalesmeasureakilogramaccuratelysothisisthewayweusetoadjustthescales.W:Howdidyoucheckthescalesbefore?M:Wehaveanoldstandardweightthatweusedtouse.Ithadtobereplacedbecauseitwasimprecise.[24]Youseeitwasmadeofpoorqualitymetalthatabsorbedtoomuchmoisture.W:Oh.Sowhentheweatherwashumiditweighedmoreandwhenitwasdryitweighedless.M:Exactly.Andthatvariationcanaffectthestandardsofthewholecountry.Soourdepartmenthadthenewweightmadeoutofhigherqualitymetal.W:Howmuchdiditcost?M:About45,000dollars.W:45,000dollars?Foraonekilogramweight?That'smoreexpensivethangold.Isitreallyworththatmuch?M:[25]I'msureitis.Industriesdependonourgovernmentagencytomonitortheaccuracyofscalessothatwhentheybuyandselltheirproductsthereisonestandard.Thinkofthedrugindustry,forexample,thosecompaniesrelyonhighaccuracyscalestomanufactureandpackagemedicine.Questions22to25arebasedontheconversationyouhavejustheard.22.Whatistheconversationmainlyabout?正确答案：B解析：女士说：“我想问您一些关于您买的官方标准砝码的问题。”直接进入话题，故B正确。所有选项都是类似于名词词组的表达