OG. NO.134

我的疑惑：choice A, B, and E can be faulted for using should in place of will to indicate future occurrences: should carries the suggestion, especially unwarranted in this context, that the Canadian scientists are describing what ought to happen.   这句话，结合A，B，E和原文，我还是不很理解。谢谢大家给予帮助。

本题的考点：1）should表示一种没有根据或者没有保证的含义。 而will 表示一种未来要发生的含义。

2） once in every nine years: 是一种非常累赘的表达方法。

3）不定惯词加名词---------表示一种一般的，范指的。

4）while的出现，要求前后需要一种结构的对称形式。

5）one person: 而不是a person, 会产生一种特指的具体的含义，而不是范指的含义。

134. Canadian scientists have calculated that one human being should be struck every nine years by a meteorite, while each year sixteen buildings can be expected to sustain damage from such objects.

(A) one human being should be struck every nine years by a meteorite

(B)  a human being should be struck by a meteorite once in every nine years

(C) a meteorite will strike one human being once in every nine years

(D) every nine years a human being will be struck by a meteorite

(E)  every nine years a human being should be struck by a meteorite

Choices A, B, and E can be faulted for using should in place of will to indicate future occurrences: should carries the suggestion, especially unwarranted in this context, that the Canadian scientists are describing what ought to happen. The phrase once in every nine years is needlessly wordy in B and C. Also, the language of C implies more than can reasonably be maintained: i.e., that a meteorite will strike one person, and no one else, exactly once during every nine-year period. Choice D is best: the phrasing is concise and free of unintended suggestions, and the use of the indefinite article in a human being is appropriate for describing what is expected to be true only on the average.

should： “应该发生”，而“原文并不能证明应该要发生”suggestion, especially unwarranted in this context, ought to会发生；

所以只能改为will，将要发生；