prep上不懂的,希望大家帮忙

miafy

2.   (24209-!-item-!-188;#058&001071)

In the Louisiana Purchase of 1803, the United States acquired 828,000 square miles for about four cents an acre, which more than doubled the country's size and that brought its western border within reach of the Pacific Ocean.

(A) In the Louisiana Purchase of 1803, the United States acquired 828,000 square miles for about four cents an acre, which more than doubled the country's size and that brought

(B) For about four cents an acre the United States acquired, in the Louisiana Purchase of 1803, 828,000 square miles, more than doubling the country's size and it brought

(C) With the Louisiana Purchase in 1803, the United States acquired 828,000 square miles for about four cents an acre, more than doubling its size and bringing

(D) The United States, in the Louisiana Purchase of 1803, for about four cents an acre, acquired 828,000 square miles, more than doubling the country's size, bringing

(E) Acquiring 828,000 square miles in the Louisiana Purchase of 1803, the United States bought it for about four cents an acre, more than doubling the country's size and bringing

答案是Ｃ，可不可以帮忙分析一下其他的错误 

7.   (24727-!-item-!-188;#058&001574)

So-called green taxes, which exact a price for the use of polluting or nonrenewable fuels, are having a positive effect on the environment and natural resource base of countries as varied as
                    China, the Netherlands, and Hungary.

(A) as varied as

(B) as varied as are

(C) as varied as those of

(D) that are as varied as

(E) that are varied as are

不是as    as结构比较对象要相等吗，这个Ｃ也不等啊

tree76

2

A which不可指代全句

B more than doubling the country's size and it brought应为more than doubling and bringing。而且句子没有宾语。

D more than doubling 和 bringing之间需要and

E it指代错误，句子重心改变。

7

as vaired as 习惯用语

答案为A。

x as varied as y ；x y 要平行

countries
        as varied as
        China, the Netherlands, and Hungrary

C：those应该为that,指代the environment and natural resource base

建议楼主下载一个PREP注释版。虽然错误不少，但是很值得参考。

miafy

谢谢