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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 whosevoyagesacrosstheAtlanticOce
2、anledtogeneralEuropeanawarenessoftheAmericancontinents.Withhisfourvoyagesof exploration,heinitiatedtheprocessofEuropeancolonizationofthe NewWorld.3.MountEverest,orMountQomolangma,isthe highest mountainonEarth,asmeasuredbytheheightabovesealevelofitssummit,8,848meters.It
3、attracts climbers ofalllevels,fromwell-experiencedmountaineerstonewclimberswillingtopay substantial sumstoprofessionalmountainguidestocompleteasuccessfulclimb.1.WhatachievementshavehumansmadeinspaceexplorationsincethebeginningoftheSpaceAge?WhatareChina'srecentachievemen
4、tsinspaceexploration?Youranswer：Thebrainofapersonwhoisbrain-deadhascompletelyceasedfunctioning,asevidencedbyabsenceofbrainactivityonanelectroencephalogramforaspecificlengthoftime.Braindeathissometimesusedasalegaldefinitionofdeath.Thesignificantpointisthatthebrainisnolonge
5、rcapableofsustainingtherestofthebody'ssystemswithoutartificiallifesupport.Referenceanswer： Humanshavesucceededinlandingonthemoon/exploringMars.OnOct.15,2003,Chinasuccessfullylauncheditsfirstmannedspacecraft,ShenzhouV.OnOct.12,2005,ShenzhouⅥ,thesecondmannedspaceflightfromC
6、hina,waslaunchedintospace.OnSept.12,2008,ShenzhouⅦ,carryingthreecrewmembers,waslaunchedintospace.2.Canyounameanyexplorers?Doyouknowtheirachievements?Youranswer：Thebrainofapersonwhoisbrain-deadhascompletelyceasedfunctioning,asevidencedbyabsenceofbrainactivityonanelectroenc
7、ephalogramforaspecificlengthoftime.Braindeathissometimesusedasalegaldefinitionofdeath.Thesignificantpointisthatthebrainisnolongercapableofsustainingtherestofthebody'ssystemswithoutartificiallifesupport.Referenceanswer： MarcoPolowasagreatexplorer.HetraveledacrossAsiainthe1
8、200s.LouisJolietwasafamousCanadianexplorerwhoexploredtheGreatLakesanddiscoveredtheMississippiRiv
