大学英语精读文本1-6册(txt下载) 分节阅读 6

Marley

马莉

theAtlantic

《大西洋》月刊

Henry

亨利

Liz

莉兹

HarvardLaw(School)

哈佛大学法学院

Clark

克拉克

艾略特

UnitThree

Text

Arewehumansaloneintheuniverse?Oristhereintelligentlifeonotherplanets?,however,,

THEQUESTFOR

EXTRATERRESTRIALINTELLIGENCE

CarlSagan

Throughallofourhistorywehaveponderedthestarsandmusedwhetherhumanityisuniqueorif,somewhereelseinthedarkofthenightsky,thereareotherbeingswhocontemplateandwonderaswedo,,wearealittlelonely;andwepondertheultimatesignificance,ifany,

,

Inthelastfewyears--inone-millionththelifetimeofourspeciesonthisplanet--wehaveachievedanextraordinarytechnologicalcapabilitywhichenablesustos