请教PREP的模考语法题，大牛快来呀

amy2098

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

The sports Medicine Progams of the Olympic Training Center,a complex where final tryouts are held for athletes representing the US in the Olympic ,(is geared toward enhancing athletes' performance and toward their preparation )for international competition.
A.is geared toward enhancing athletes' performance and toward their preparation
B.is geared to enhance the performance of athletes and to prepare them
C.are geared to enhance athletes' performance and their preparation
D.are geared toward the enhancement of athletes' performance and toward preparing them
E.are geared toward enhancing the performance of athletes and preparing them
PS：E选项为什么PREPARING 前省TOWARD呢，能省的吗？

amy2098

谢谢解答

colasama

第二题

toward就一小小的介词，当然可以省略。
I ate up my breakfast and yours as well.在yours前加个up多奇怪啊

colasama

第一题
好久以前做过，答案不记得了。就记得当时觉得是个没见过的用法，觉得很难。
不过现在放松心态重新来看，其实很容易就能看出来选A。

从词性来看，as在这里明显是介词。没记得哪个介词可以接be动词的，就算有也是being（当然being在这里也错）.所以有are的B、E排除.
D跟A比，除了啰嗦没有区别。排除D

然后就剩A跟C了，those没有东西可以指代，排除C。
只有A了
上面是从反面用排除法。

从正面入手：
as varied as……其实就是个穿了马甲的as ……as 结构
跟as much as ，as beautiful as之类的用法没多大区别，只是对象变成复数的