GWD-8-Q34
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
答案是D,
(1)为什么不是E?
(2) D为什么要用have been...?
(3) found 和 made 属于什么成分,是谓语还是定语?如何区分是“谓语动词”还是“作修饰的过去分词”?
1)E的明显错误在于并列的谓语was dated和made之间没有and连接。
2)have been 是因为in 1991,这里暗含的时态clue是 since 1991,自1991化石被发现以来...
3)A逻辑错,是化石的年代确认这一事实证明了树懒是最早的哺乳动物,而不是化石使得树懒成为最早。在这里found和dated分词作定语,made是谓语动词,后有宾语及宾语补足语。
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