上外MTI真题.doc

翻译英语基础： 第一大题：完型，无选项，无首字母，15空，2分一个，讲得大概是人类祖先并非起源于非洲，而是可能从亚洲迁移而来的. Evolution Into Africa – the human ancestors from Asia The human family tree may not have taken root in Africa after all, claimscientists, after finding that its ancestors may have travelled from Asia. By Richard Alleyne, Science Correspondent 7:00PM BST 27 Oct 2010 While it is widelyaccepted that man evolved in Africa, in fact its immediate predecessors mayhave 1colonised thecontinent after developing elsewhere, the study says. The claims are madeafter a team 2unearthedthe fossils of anthropoids – the primate group that includes humans, apes andmonkeys – in Libyas Dur At-Talah. Paleontologistsfound that 3amongstthe 39 million year old fossils there were three distinct families ofanthropoid primates, all of whom lived in the 4area at approximately the same time. Few or anyanthropoids are known to have existed in Africa during this 5period, known as theEocene epoch. This could eithersuggest a huge gap in Africas fossil record – 6unlikely, say the scientists, given the amount ofarchaeological work undertaken in the area –7 or that the species colonised Africafrom another continent at this time. As the evolutioninto three species would have 8taken extreme lengths of time, combined with the lack of fossilrecords in Africa, the team concludes that Asia was the most likely 9origin. Writing in thejournal Nature, the experts said they believed migration from Asia to be themost 10plausibletheory. Christopher Beard,of the Carnegie Museum of Natural History in Pittsburgh, said: 11If our ideas are correct,this early colonisation of Africa by anthropoids was a truly 12pivotal event — one ofthe key points in our evolutionary history. At the time,Africa was an island continent; when these 13anthropoids appeared, there was nothing on thatisland that could compete with them. It led to aperiod of flourishing evolutionary divergence amongst anthropoids, and one ofthose lineages 14resultedin humans. If our ear