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1、假期第十七天单项选择1、Thoughthey’retwins,theyhavenothingin______withone________.A.commons;another B.common;anotherC.common;other D.commons;other2、It’ssaidthatthepowerplantisnow largeaswhatitwas.A.twiceas B.astwice C.twicemuch D.muchtw
2、ice3、Manyairlinesnowallowpassengerstoprinttheirboardingpassesonline___________theirvaluabletime.A.save B.saving C.tosave D.saved4、JohnandI_______friendsforeightyears.WefirstgottoknoweachotherataChristmasparty.Butwe_______eachotherseveraltimesbe
3、forethat.A.hadbeen;haveseenB.havebeen;haveseenC.hadbeen;hadseenD.havebeen;hadseen5、Hefound________almostimpossibletoexpresswhathewantedtosay.A.that B.this C.it D.one阅读理解6、 Imagine,oneday,gettingoutofbedinBeijingandbeingatyourofficeinSh
4、anghaiinonlyacoupleofhours,andthereafterafulldayofwork,goingbackhometoBeijingandhavingdinnerthere. Soundsunusual,doesntit?Butit’snotthatunrealistic,withthedevelopmentofChina'shighspeedrailwaysystem.Andthat’snotall.Chinahasanevengreaterhigh-speedrailwaypla
5、n----toconnectthecountrywithSoutheastAsia,andeventuallyEasternEurope. Chinaisnegotiatingtoextenditsownhigh-speedrailwaynetworktoupto17countriesin10to15years,eventuallyreachingLondonandSingapore.Chinahasproposedthreesuchprojects.Thefirstwouldpossiblyconnec
6、tKunmingwithSingaporeviaVietnamandMalaysia.AnothercouldstartinUrumqiandgothroughKazakhstanandUzbekistan,andpossiblytoGermany.ThethirdwouldstartinthenortheastandgonorththroughRussiaandthenintoWesternEurope. IfChina'splanforthehigh-speedrailwaygoesforward,p
7、eoplecouldzipoverfromLondontoBeijinginundertwodays.ThenewsystemwouldstillfollowChina'shigh-speedrailwaystandard.Andthetrainswouldbeabletogo346kilometersanhour,almostasfastassomeairplanes.China'sbullettrain(高速客车),theoneconnectingWuhantoGuangzhou,alreadyhasthe
8、world'sfastestaveragespeed.Itcovers1,069kilometersinaboutthreehours.Ofcourse,therearesometechnicalchallengestoovercome.Therearesomanyissuevsthatneedtobesettled,suchassafety,railgauge(轨距),mainten
