老prep1-sc-39（as is the case with的用法）

gegefdt606

As it is with traditional pharmacies, on-line drugstores rely on prescriptions to be successful, since it is primarily prescriptions that attract the customers, who then also buy other health-related items.

(A) As it is with traditional pharmacies, on-line drugstores rely on prescriptions to be successful
(B) As with the case of traditional pharmacies, on-line drugstores rely on prescriptions to have success
(C) As is the case with traditional pharmacies, prescriptions are the cornerstone of a successful on-line drugstore
(D) As traditional pharmacies, so on-line drugstores rely on prescriptions to be successful
(E) Like traditional pharmacies, the cornerstone of a successful on-line drugstore is prescriptions

prep解释上说as is the case with是固定搭配，但是什么意思呢？还有这个搭配是不是前后不一定要对称的？先谢过啦~~~

gegefdt606

up

gegefdt606

我再顶~~~NN帮忙解答下啊~~~~跪谢

aeoluseros

as is the case with中as和so一样是指代一个situation，as is the case with可以看作一个平行结构。
其实C像下面这样写也没有语法错误，而且也包含了原句要表达的意思：
As prescriptions are the cornerstone of successful  traditional pharmacies, they are of a successful on-line drugstore...
只是这样写有歧义，as可以引导原因状语从句，显得好像前者是后者成立的原因，而且这个结构不如as is the case with简洁。

gegefdt606

明白了，谢谢NN

onlylee0302

aeoluseros 发表于 2011-5-2 02:43
as is the case with中as和so一样是指代一个situation，as is the case with可以看作一个平行结构。其实C像 ...

楼主你好，这个句子后半句中没有划线的部分
since it is primarily prescriptions that attract the customers, who then also buy other health-related items.
中的it，指代的是什么？求指教~~~

aeoluseros

onlylee0302 发表于 2013-5-26 16:49
楼主你好，这个句子后半句中没有划线的部分
since it is primarily prescriptions that attract the cus ...

强调句，it无指代。