2015年5月16日托福阅读真题预测

Another major discovery was made in Egypt in 1989. Several skeletons of another early whale, Basilosaurus, were found in sediments left by the Tethys Sea and now exposed in the Sahara desert. This whale lived around 40 million years ago, 12 million years after Pakicetus. Many incomplete skeletons were found but they included, for the first time in an archaeocyte, a complete hind leg that features a foot with three tiny toes. Such legs would have been far too small to have supported the 50-foot-long Basilosaurus on land. Basilosaurus was undoubtedly a fully marine whale with possibly nonfunctional, or vestigial, hind legs.

1. The word “exposed” in the passage is closest in meaning to

○explained

○visible

○identified

○located

2. The hind leg of Basilosaurus was a significant find because it showed that Basilosaurus

○lived later than Ambulocetus natans

○lived at the same time as Pakicetus

○was able to swim well

○could not have walked on land

3. It can be inferred that Basilosaurus bred and gave birth in which of the following locations

○On land

○Both on land and at sea

○In shallow water

○In a marine environment

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