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标题: 新prep237求助 [打印本页]

作者: EGHJUYMN 时间: 2010-6-1 22:20 标题: 新prep237求助

Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve metropolitan Boston.

A. Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve

B. Concerns about public health have led to the construction of three separate sewer systems between 1876 and 1904 to serve

C. Concerns about public health have led between 1876 and 1904 to the construction of three separate sewer systems for serving

D. There were concerns about public health leading to the construction between 1876 and 1904 of three separate sewer systems serving

E. There were concerns leading between 1876 and 1904 to the construction of three separate sewer systems for serving

答案为A，我选B

我的问题是:

1.A B 仅是时态上的差异吗？我是，我偏向现在完成时，强调对现在的影响

2.此处时间状语的位置有无讲究？

谢谢牛牛

作者: mandying 时间: 2010-6-2 06:45

B改變了意思 -- three separate sewer systems between 1876 and 1904

作者: EGHJUYMN 时间: 2010-6-3 06:53

那么请问：这是由于时间状语的位置造成的吗？一般人看不出阿

还有，时态上有没有讲究？

谢谢指教

作者: mandying 时间: 2010-6-5 22:44

是, 因為時間狀語修動詞, 也可以修名詞, 所以要小心.
致於時態, 是很主觀, 因為author到底想表達什麼, 不是那麼好猜(of course, 有些會很obvious).
妳是猜author想强调对现在的影响, 可是我們不是author..有點難猜

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