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标题: 快被比较结构搞疯了prep07-sc1 77 [打印本页]

作者: gtl0925 时间: 2011-9-18 20:39
标题: 快被比较结构搞疯了prep07-sc1 77

Scientists have found signs that moving water changed the chemical makeup of the surface of Mars in recent eras, therefore concluding that its crust is harboring up to three times as much water than was previously thought.

(A) eras, therefore concluding that its crust is harboring up to three times as much water than was

(B) eras, therefore concluding that the planet's crust harbors up to three times as much water or more as was

(D) eras and they have concluded, therefore, that its crust harbors up to three times as much water, or more, than

(E) eras and concluded, therefore, that the planet's crust is harboring up to three times more water as was

正确选项是c
求教NN们，我怎能看怎么都觉得c的最后少了一个像e选项最后的那个was，as...as...结构中这两个as都是什么词性啊？是不是c选项红色as后的那半句话涉及省略了啊？
求解，谢谢！！！

作者: wwc008love 时间: 2011-9-18 23:08
首先看A和B，therefore+完整句子，AB排除。
D as much as,or more than是一个固定搭配。D错
E three times 和more 不连用。而且more 和as混搭错误
很明显的混搭错误。。建议看下白勇语法。上面说的很详细

作者: 2011finish 时间: 2011-9-19 00:18
therefore可以ving表结构伴随，这里是语意不符A和B错，以及D as much as,or more than搭配错误

作者: cobbleqxz 时间: 2011-9-23 17:21
ABDE选项，都是more……than结构只有其中一个，都错，所以选C
LZ没看OG么……

作者: adsdsd 时间: 2016-7-30 01:03
Ron的解释：
"was" is ok.
it's not necessary, though, because "previously" is there. so, the sentence is more efficient without it.

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