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1、030922人类的起源-吴新智（Theoriginofmankind-wuxinzhi）HercoupleinTanzaniawildernessvalleytofindfossils,lookingformorethan20years,nearly30years,by1959foundaskullofthemoreimportant,itisinthemiddleofthis,thisisheracouple,togetherwiththeskull,alsofoundsomestone.Youknowstoneis
2、madeinperson,notnatural,arethetoolsofstone,thestonewiththeskull'sformation,withthepotassium,argonmethodtodeterminetheradioactiveisotopeisthe1.75million-year-old,soitisthehumanhistoryisextendedin1.75million,itwas1959,sothatyearwasselectedasoneofthetoptennewsofthe
3、world.Inthe1960s,aBritishgirl,highschoolgraduate,calledJanegoodall,afewyearsagotoBeijing,nowmakeanimalprotection,shewasveryinterestedinancienthuman,shearrivedinAfrica,justpleasethegentleman,isLouisleakey,changeforher,shelivesjusttotheforest,toobservechimpanzeesl
4、iving,shelookedforalongtime,theresultsfoundthatchimpscanmaketools,youcansticktogetridofthebranchesofthegrass,dotheyusesticktonestinthegrass,becausetheantsinAfricaisverybig,itsnestlikegrave,sowecallanthill,insertedintotheanthilltolandtheantseat,thatistochangethes
5、hapeoftheobjectinnature,usedforoneself,thisisthebeginningofmakingtools.Sowhat'sthepointoffindingsuchamanufacturingtool?That'sabigdeal.Whatisthedefinitionofhumanbeforethat?It'sananimalthatcanmaketools,sowe'vediscoveredtheearliesttools,the175millionyearsoftoolstha
6、twe'vebeentalkingabout,soweknowthattherearepeople.TheJavamanwasdiscoveredin1891,buttherehasbeenalotofdebateaboutit,andit'sbeenalongargument,andfordecades,it'snotbeendecidedthathe'sanape,what'sthereason?Itwasbecausetherewasnotoolforhimtofindoutthathisbrainwasthes
7、izeofmodernapes.Soatthattimein1959,accordingtothedefinitionofthatperson,theperson'shistorywasabout1.75millionyears,becausetheearliesttoolwas1.75millionyears.SonowJanegoodallfoundthatchimpscanmaketools,thatistosaybymakingtoolsforpeoplewiththehistoryoftheapebounda
8、rymarkdoesn'twork,isnotappropriate,sopeoplewillhavetodiscuss,isusingasymboltodistinguishdifferentpeopleandapes,weknowthatapesintopeople,buttowhatstateis?Itisdifficult
