prep 2-20 求解答。

zhangtao1125

prep 2-20

The human nervous system and a telephonesystem superficially resemble each other, not only

because the former carries information inthe form of electrical impulses and because all of its
neural pathways converge in the brain andspinal cord, which together form a kind of central
exchange.

(A) The human nervous system and atelephone system superficially resemble each other, not only

because the former carries

(B) The human nervous system and atelephone system bear a superficial resemblance because

they both carry

(C) The human nervous system bears asuperficial resemblance to a telephone system both

because the former carries

(D) Superficially, a telephone systemresembles the human nervous system both because they

carry

(E) There is a superficial resemblancebetween a telephone system and the human nervous system,

not only because they both carry

正确答案为C。我的疑问在于B答案。

疑问一：prep解释说B的they无指代对象，这里they不能指代the human nervous system and a telephone system么。

疑问二：both必须和and连用么。both不能不能单独表示“都”这个意思么。比如举例说，James and Sandy both like apple。

myancamel

1.在指代问题上，C很好的解决了不用指代也能说明白的问题，B的指代就一定有问题，这是这个考试的特点；要是一定要扣细一点，你说they指代的是A+B，那么就有人认为指代的是A或者B，这就是歧义啊
2. both当然能单独用，但后面不是有and，而是有and because,而前面也要表达because的意思，那当然是both because...and because的形式更好了