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1、第十七天单项选择1、Thoughthey’retwins,theyhavenothingin______withone________.A.mons;another B.mon;anotherC.mon;other D.mons;other2、It’ssaidthatthepowerplantisnow largeaswhatitwas.A.twiceas B.astwice C.twicemuch D.muchtwice3、Manyairlinesnowa
2、llowpassengerstoprinttheirboardingpassesonline___________theirvaluabletime.A.save B.saving C.tosave D.saved4、JohnandI_______friendsforeightyears.WefirstgottoknoweachotherataChristmasparty.Butwe_______eachotherseveraltimesbeforethat.A.hadbeen;haveseenB
3、.havebeen;haveseenC.hadbeen;hadseenD.havebeen;hadseen5、Hefound________almostimpossibletoexpresswhathewantedtosay.A.that B.this C.it D.one阅读理解6、 Imagine,oneday,gettingoutofbedinBeijingandbeingatyourofficeinShanghaiinonlyacoupleofhours,andthere
4、afterafulldayofwork,goingbackhometoBeijingandhavingdinnerthere. Soundsunusual,doesntit?Butit’snotthatunrealistic,withthedevelopmentofChina'shighspeedrailwaysystem.Andthat’snotall.Chinahasanevengreaterhigh-speedrailwayplan----toconnectthecountrywithSoutheastAsia,
5、andeventuallyEasternEurope. Chinaisnegotiatingtoextenditsownhigh-speedrailwaynetworktoupto17countriesin10to15years,eventuallyreachingLondonandSingapore.Chinahasproposedthreesuchprojects.ThefirstwouldpossiblyconnectKunmingwithSingaporeviaVietnamandMalaysia.Anothe
6、rcouldstartinUrumqiandgothroughKazakhstanandUzbekistan,andpossiblytoGermany.ThethirdwouldstartinthenortheastandgonorththroughRussiaandthenintoWesternEurope. IfChina'splanforthehigh-speedrailwaygoesforward,peoplecouldzipoverfromLondontoBeijinginundertwodays.Thene
7、wsystemwouldstillfollowChina'shigh-speedrailwaystandard.Andthetrainswouldbeabletogo346kilometersanhour,almostasfastassomeairplanes.China'sbullettrain(高速客车),theoneconnectingWuhantoGuangzhou,alreadyhastheworld'sfastestaveragespeed.Itcovers1,069kilometersinaboutthreeh
8、ours.Ofcourse,therearesometechnicalchallengestoovere.Therearesomanyissuevsthatneedtobesettled,suchassafety,railgauge(轨距),maintenanceofrailwaytrac