When drive-ins were at the height of their popularity in the late 1950s, some 4,000 existed in the United States, but today there are less than one-quarter that many.
there are less than one-quarter that many
there are fewer than one-quarter as many
there are fewer than one-quarter of that amount
the number is less than one-quarter the amount
it is less than one-quarter of that amount
1. A错在用了less,语义上是less drive-ins,可数名词,应该用fewer。句子里的there are用了复数和less不可数,以及后面that many用了可数--都不协调
2. CDE错在amount-只能用在不可数例如continuous quantities/mass nouns,例如water,furniture。RON说C的amount改为number就是正确的。
3. B正确。as many意为一样多。常用为 as many as。。表示平行,但当句子在这个结构之前已经陈述过那个比较的数字的时候,就不需要一定要as many asXXX,这样反而是累赘redundancy。as many表达有:twice as many, one-quarter as many等等表示与两倍一样多,与四分之一一样多,句子中肯定前面已经表达过与XXX的quantity一样多了,所以可以这么使用。
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