2. 外语
  3. Israeli archaeologists have discovered human remains dating from 400,000 years ago,(1)______ conventional wisdom that Homo sapie

Israeli archaeologists have discovered human remains dating from 400,000 years ago,(1)______ conventional wisdom that Homo sapie

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问题     Israeli archaeologists have discovered human remains dating from 400,000 years ago,(1)______ conventional wisdom that Homo sapiens(2)______in Africa.
    Avi Gopher, of Tel Aviv University’s Institute of Archaeology, said testing of stalactites(钟乳石) and other(3)______found in a cave east of Tel Aviv(4)______ that eight teeth uncovered there could be the earliest(5)______ so far of our species. " Our cave was used for a period of about 250, 000 years— from about 400,000 years ago to about 200, 000 years ago," he told the reporters.
    " The teeth are(6)______ through the(7)______ of the cave, some in the deeper part;(8)______ from 200, 000 years and through all kinds of other layers that can be(9)______ 400, 000 years. The oldest are 400,000 years old" ,he added.
    That calls into question the(10) ______held view that Africa was the(11)______of modern man, said Gopher, who headed the dig at Qesem Cave.
    "It is(12)______ at the moment that the earliest Homo sapiens that we know is in east Africa and is 200,000 years old,or a little less. We don’t know of anywhere else where anyone(13)______ to have an earlier Homo sapiens,"he said.
    Gopher said the first teeth were (14)______in 2006 but he and his team waited until they had several samples,then(15)______ years of testing, using a variety of dating methods,(16)______ publishing their findings.
    Digging continues at the cave, the university said, with researchers (17)______ to uncover(18) ______finds that will enable them to(19)______the findings published up to now and to enhance our understanding of the(20)______of mankind, and especially the appearance of modern man.
(19)
选项 A、confirm
B、validate
C、affirm
D、acknowledge
答案A
解析 动词辨析题。根据上面的句意，此处需要一个表示“确认”的单词。[A]confirm意为“确认”，符合文意，故为正确答案。[B]validate意为“确认，证实”，强调“从法律上确认”；[C]affirm意为“肯定属实，断言”，强调“所说内容的真实性”；[D]acknowledge意为“承认”。上述三个选项都不符合文意。
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