og-70 The gyrfalcon ,an Arctic bird of prey ,has survived a close brush with extinction ;its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970s.
A extinction;its numbers are now five times greatly than B extinction ;its numbers are now five times more than C extinction ,their numbers now fivefold what they were D extinction ,now with fivefold the numbers they had E exinction,now with numbers five times greater than
觉得og对这题的解释不清不楚的，说：有些错误的答案imply there are now more numbers ,rather than more gyrfalcons，对此很费解？？？我有以下几个问题， 1.这里numbers不是gyrfalcon的数量吗，为什么数量要变成复数？？？ 2.此题用more 和great有什么区别 3,DE用的with结构为什么错，这里的with修饰什么的 4.正确答案是A，可than后面只有一个when从句，不是没有比较宾语啥的做比较对象了吗
平时我们学的语法里number有两种情况: 1) 表示quantitiy，此时用单数。比如The number of girl students is 20. 2) 表示multitud，此时a number of=numbers of用于修饰可数名词，然后两者interchangeable，a + adj. + number of= adj. +numbers of
但是对于OG Verbal II 70这道题，我疑惑的是its numbers的用法？可否用its number代替？ http://www.beatthegmat.com/the-gyrfalcon-t51538.html 这里有个例子： numbers of ' is correct when used in a sentence such as The peacock's numbers are estimated to be two times greater than last year, easing the concern of the forest officials worried about the population of the peacocks. 我是否可以理解为，the numbers的这种用法可以等同于population? 如果用了number，则单纯给人感觉是数字上的概念而非一个物种的数量概念？于是需要用numberS来强化？
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发表于 2011-3-14 19:31:21
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