大家新年快乐，prep07两道语法题求解。

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1.As with those of humans, the DNA of grape plants contains sites where certain unique sequences of nucleotides are repeated over and over.

(A) As with those of humans, the DNA of grape plants contains sites where
(B) As human DNA, the DNA of grape plants contain sites in which
(C) As it is with human DNA, the DNA of grape plants, containing sites in which
(D) Like humans, the DNA of grape plants contain sites where
(E) Like human DNA, the DNA of grape plants contains sites in which
A选项是错误的，语法笔记中说As with为错误表达法。
是不是只有在这句话中是错误的用法？因为据我所知，as with在语法中是对的，意思是“正如....的情况一样”，看作是as is the same with的省略形式，with后面跟名词、动名词或者从句。
如果是as with 在此句话中是错误的，那么谁可以讲解一下为什么错了？我知道A肯定不如E好。

112.        (30283-!-item-!-188;#058&005246)

In hoping to restrain economic growth, interest rates were raised by British policymakers, making it more expensive to borrow for businesses and consumers.

(A) In hoping to restrain economic growth, interest rates were raised by British policymakers, making it more expensive to borrow for businesses and consumers.
(B) Making it more expensive for businesses and consumers to borrow, interest rates were raised by British policymakers, in hopes of their restraining economic growth.
(C) In making borrowing for businesses and consumers more expensive, British policymakers, in hopes they will restrain economic growth, had raised interest rates.
(D) Hopefully restraining economic growth, British policymakers raised interest rates, making more expensive borrowing by businesses and consumers.
(E) Hoping to restrain economic growth, British policymakers raised interest rates, making it more expensive for businesses and consumers to borrow.
答案为E。
关于E选项，我认为it是不存在先行词的，它所指代的是"British policymakers raised interest rates”这句话，这样的用法在gmat中不允许吧？难道是形式主语么？
另外我查阅了词典关于it的用法，其中有一个是used to refer to a fact or situation that is already known or hanppening(指已知正在发生的事情或情况)，给出的例句是：“When the factory closes, it will mean 500 people losing their jobs.” 那么，此句中的it用法在gmat中是不是也不被允许？
诚意向各位求解。

wyw1018

不说as with是否正确，those无指代
it应该是形式宾语而不是指代前面那句话
GMAT的语法规则不允许it指代一句话

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wyw1018 发表于 2014-1-1 13:26
不说as with是否正确，those无指代
it应该是形式宾语而不是指代前面那句话
GMAT的语法规则不允许it指代一句 ...

如何判断it是否为形式主语、形式宾语？我怎么看以上那句的it就是指代全面所发生的一件事情。Hoping to restrain economic growth, British policymakers raised interest rates, making it more expensive for businesses and consumers to borrow.