2. 外语
  3. The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find fiv

The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find fiv

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问题 The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.
   These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.
Some paleontologists claim that the discovery of what appear to be feathers in the fossil of an Archosaur could force a revision of current theories on the phylogeny of Archosaurs, alter conceptions of dinosaur skin surfaces, and require scholars to credit birds with a far earlier origin than previously thought.
选项 A、require scholars to credit birds with a far earlier origin than previously thought
B、scholars may be required to credit birds with a far earlier origin than previously thought
C、require a crediting by scholars of birds with a far earlier origin than previously thought
D、compared to what was previously thought, require scholars to credit birds with a far earlier origin
E、crediting birds with a far earlier origin than scholars had previously thought
答案A
解析 A is grammatically correct and idiomatic, so it is the best choice. To maintain parallel structures with the other clauses in this sentence with an understood connection to the verb "could," the sentence should read "could force  [could] alter  and [could] require... ;" thus, A and C are the only choices. The construction "require a crediting by scholars of birds" in C is awkward and confusing, so A is the best answer.
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