Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles Islands.
78. Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles Islands.
(A) sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of
(B) sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on
(C) sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of
(D) sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on
(E) sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of
这里E选项从语法上讲为什么不对？我把 which（found in Puerto Rico in 1991）was dated at 34 million years old 看做SLOTH的定从，主谓一致是符合的呀。虽然从语义上讲应该排除E选项：化石使SLOTH成为最早知道的。。。。动物
78. Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles Islands.
(E) sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of
这里E选项从语法上讲为什么不对？我把 which（found in Puerto Rico in 1991）was dated at 34 million years old 看做SLOTH的定从，主谓一致是符合的呀。虽然从语义上讲应该排除E选项：化石使SLOTH成为最早知道的。。。。动物
sloth which, found in Puerto Rico in 1991, was dated at 没有这种句子结构
sloth, which was found in Puerto Rico in 1991也不对，因为该用essential modifier "that"
sloth that was found in Puerto Rico in 1991 was dated at
或者sloth found in Puerto Rico in 1991 was dated at
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发表于 2014-8-5 09:56:31
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