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1、1.YuriGagarinwasaSovietcosmonaut(前苏联宇航员).On12April1961,hebecamethefirsthumanin outerspace andthefirsttoorbit(环绕)theEarth.Hereceivedmedalsfromaroundtheworldforhis pioneeringtour inspace.2.ChristopherColumbuswasanavigator(航海家)and explorer whosevoyagesacrosstheAtlan
2、ticOceanledtogeneralEuropeanawarenessoftheAmericancontinents.Withhisfourvoyagesof exploration,heinitiatedtheprocessofEuropeancolonizationofthe NewWorld.3.MountEverest,orMountQomolangma,isthe highest mountainonEarth,asmeasuredbytheheightabovesealevelofitssummit,8,
3、848meters.Itattracts climbers ofalllevels,fromwell-experiencedmountaineerstonewclimberswillingtopay substantial sumstoprofessionalmountainguidestocompleteasuccessfulclimb.1.WhatachievementshavehumansmadeinspaceexplorationsincethebeginningoftheSpaceAge?WhatareChina
4、'srecentachievementsinspaceexploration?Youranswer：Thebrainofapersonwhoisbrain-deadhascompletelyceasedfunctioning,asevidencedbyabsenceofbrainactivityonanelectroencephalogramforaspecificlengthoftime.Braindeathissometimesusedasalegaldefinitionofdeath.Thesignificantpoin
5、tisthatthebrainisnolongercapableofsustainingtherestofthebody'ssystemswithoutartificiallifesupport.Referenceanswer： Humanshavesucceededinlandingonthemoon/exploringMars.OnOct.15,2003,Chinasuccessfullylauncheditsfirstmannedspacecraft,ShenzhouV.OnOct.12,2005,ShenzhouⅥ,t
6、hesecondmannedspaceflightfromChina,waslaunchedintospace.OnSept.12,2008,ShenzhouⅦ,carryingthreecrewmembers,waslaunchedintospace.2.Canyounameanyexplorers?Doyouknowtheirachievements?Youranswer：Thebrainofapersonwhoisbrain-deadhascompletelyceasedfunctioning,asevidencedby
7、absenceofbrainactivityonanelectroencephalogramforaspecificlengthoftime.Braindeathissometimesusedasalegaldefinitionofdeath.Thesignificantpointisthatthebrainisnolongercapableofsustainingtherestofthebody'ssystemswithoutartificiallifesupport.Referenceanswer： MarcoPolowa
8、sagreatexplorer.HetraveledacrossAsiainthe1200s.LouisJolietwasafamousCanadianexplorerwhoexploredtheGreatLakesanddiscoveredtheMississippiRiv
