比较级最高级: B, the construction its numbers are ... more is not idiomatic: there are more birds, but not more numbers / 修饰数量大多少倍用greater
对比：时间状语
252
D A
主被动：主动大于被动，C
句意理解：逻辑概念，The shift to plural Bicycles detracts（转移） from clarity by suggesting that multiple bicycles are owned by each person in question.
主谓（单复数）一致：D, the singular owns does not agree with its plural subject three... owners
253
B
定从：现行词位置
分词：要修饰句末的名词时，用逗号加分词肯定会错
比较级：固定搭配：than usual, than ever, and than ever before
254
B
对比： more common among x than among y
255
C
代词指代单复一致: A, B, an agreement error between plural payments and singular it.
主被动：D,E
罗嗦：E, payments... to be paid is redundant and unidiomatic
256
A E
修饰语位置：in two letters 修饰的歧异 我们可以理解成为 (1) the great eruption of Vesuvius in two letters 或者 (2) wrote in two letters
分词：B, the verb phrase that begins being the only eyewitness accounts modifies the subject of the preceding clause, suggesting nonsensically that the nephew of Pliny the Elder himself was the eyewitness accounts
257
D
主谓（单复数）一致
258
A
宾从
时态
句意理解：C may be faulted for distortion of meaning and diminished clarity because it suggests that the point of Wootton's example was the elephant's very existence; comparative earnings are presented (after and) as incidental detail（句子重心改变了,或者说，句子表达的有效性
259
A
分词
260
E
副词修饰动词（短语）:The adverbial so that can modify verbs (e.g., decreased) but not nouns (e.g., the decrease).
代词指代：In A and B, the referent of it is unclear, as the pronoun could refer to either unemployment or decrease
A is faulty because its construction illogically suggests that Europeans arrived in the New World on Columbus Day 1992 and that Project SETI was initiated five centuries thereafter.
263
A D
固定搭配：as a result of
修饰语位置：the largest library of the ancient world at Alexandria generates ambiguity: one possible reading is that the ancient world was located at Alexandria. （又是一个状语引起歧义的句子at alexandria）
罗嗦：C, the phrase because of the result of is unidiomatic as well as redundant
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发表于 2006-1-18 20:18:00
