求教 新PREP2-164

ohohgeegee

164.Mixed with an equal part of water, ethylene glycol, a compound commonly used as an automotive antifreeze, is effective at temperatures as low as –30 degrees Fahrenheit.
A.temperatures as low

B.temperatures so low

C.as low temperatures

D.as few
E.as little


选项分析:

(A)Correct；主语是ethylene glycol，mixed过去分词前置修饰有被动的含义，Mixed的逻辑主语即句子的主语ethylene glycol。a compound 引导同位语从句，Be effective为句子谓语。

(B)so as只用于否定句中。

(C)at后面缺少名词作宾语

(D)at后面缺少名词作宾语；few不能形容温度

(E)at后面缺少名词作宾语；little不能形容温度

类似题链接：
prep 2-9 The Environmental Protection Agency frequently puts mandatory controls on toxic substances that present as little risk as one in a million chances to cause cancer.

(A) as little risk as one in a million chances to cause

(B) as little risk as one chance in a million of causing

(C) as little risk as one chance in a million that it will cause

(D) a risk as little as one chance in a million for causing

(E) a risk as little as one chance in a million for it to cause

Key: B

如果D和E改成a risk as little as one chance in a million of causing也就对了

我的疑问是：例题中C选项不对是因为at后面缺少temperature做宾语，但是类似连接的正答B prevent后面不是也没有宾语么？不是直接接了as+N+as..
是因为prevent是及物动词可以这样，at后面就一定要加个N， 不能直接加as+N+as..

请明白人帮忙解答下~谢过啦~ XD

HarrisZheng

object following present is risk, a uncountable noun.

wangjieava23

楼上是神来之笔，谢谢呀

wangjieava23

Mixed with an equal part of water, ethylene glycol, a compound commonly used as an automotive antifreeze, is

effective at temperatures as low as –30 degrees Fahrenheit.

temperatures as low
temperatures so low
as low temperatures
as few            
as little

答案：A

prep 2-9 The Environmental Protection Agency frequently puts mandatory controls on toxic substances that present as

little risk as one in a million chances to cause cancer.
(A) as little risk as one in a million chances to cause
(B) as little risk as one chance in a million of causing
(C) as little risk as one chance in a million that it will cause
(D) a risk as little as one chance in a million for causing
(E) a risk as little as one chance in a million for it to cause

答案：B
     其实B真的挺复杂的。是 as little as one chance in a million 和 a risk of causing cancer 两个的叠加。
     关于单复数的问题，Ron 也只是表示自己觉得是错的，但是需要验证。

同时，通过这两个题的对比，我认为GMAC倾向于 n+as+adj+as这样中规中矩的说法。