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题库 / Prep2007E1-SC-33
More than 300 rivers drain into Siberia's Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.
More than 300 rivers drain into Siberia's Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.
With 20 percent of the world's fresh water, that is more than all the North American Great Lakes combined, Siberia's Lake Baikal has more than 300 rivers that drain into it.
Siberia's Lake Baikal, with more than 300 rivers draining into it, it holds more of the world's fresh water than all that of the North American Great Lakes combined, 20 percent.
While more than 300 rivers drain into it, Siberia's Lake Baikal holds 20 percent of the world's fresh water, which is more than all the North American Great Lakes combined.
More than all the North American Great Lakes combined, Siberia's Lake Baikal, with more than 300 rivers draining into it, holds 20 percent of the world's fresh water.
题目分析：
本题难度较大，需要仔细区分成分及语意方可找到答案。
选项分析：
A选项：Correct. 本选项在语法和逻辑上均是正确的。
B选项：that is more than all the North American Great Lakes combined是定语从句，但非限定性定语从句不能用that来引导，只能用which。另外，在主句部分，我们不能说Siberia's Lake Baikal has more than 300 rivers，即，Baikal不能拥有300条河，只能是三百条河流入Baikal。
C选项：语法有误。Siberia's Lake Baikal和代词it均是holds的主语，这造成了一个句子有两个主语。另外，with more than 300 rivers draining into it是独立主格结构，其是holds句的状语。在逻辑上，三百条河流入Baikal应是在描述Siberia's Lake Baikal的性质的，而描述名词的均应该是定语，不能使用状语。
D选项：状语从句while more than 300 rivers drain into it有误。它在修饰主句hold这个动作。但在逻辑上，“300条河流入”和“湖里的水占据了多少百分比的全球淡水”之间没有时间关系。也就是说，不能说“当300条河流入的时候，湖里的水就占了20%”。这好像是给“占20%”加了一个限定的时间。
又或者，现在如果突然所有的河都不流入了，短时间内这个湖逻辑上还是会占20%的淡水的。因此，不能用“流入”这个动作来做“占据”的时间状语。
E选项：with more than 300 rivers draining into it是独立主格结构错误同选项(C)。
题目分析：
本题难度较大，需要仔细区分成分及语意方可找到答案。
选项分析：
A选项：Correct. 本选项在语法和逻辑上均是正确的。
B选项：that is more than all the North American Great Lakes combined是定语从句，但非限定性定语从句不能用that来引导，只能用which。另外，在主句部分，我们不能说Siberia's Lake Baikal has more than 300 rivers，即，Baikal不能拥有300条河，只能是三百条河流入Baikal。
C选项：语法有误。Siberia's Lake Baikal和代词it均是holds的主语，这造成了一个句子有两个主语。另外，with more than 300 rivers draining into it是独立主格结构，其是holds句的状语。在逻辑上，三百条河流入Baikal应是在描述Siberia's Lake Baikal的性质的，而描述名词的均应该是定语，不能使用状语。
D选项：定语从句which is more than all the North American Great Lakes combined应就近修饰，这里只能修饰20 percent of the world's fresh water，这是不正确的。该定语从句描述的在逻辑上应是Siberia's Lake Baikal的特点。
E选项：with more than 300 rivers draining into it是独立主格结构错误同选项(C)。
A，Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.A do B, more than C可以表示A do B more than do C,也可以表示A do B, more than C do B,这里根据语意可知是后一种情况。可以看成是more than all the North American Great Lakes combined do，比较对象是水和水，ok。
才知道水和湖不能比啊
https://www.manhattanprep.com/gmat/forums/more-than-300-rivers-drain-into-t5054.html
比较的双方必须概念对等
A，Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.A do B, more than C可以表示A do B more than do C,也可以表示A do B, more than C do B,这里根据语意可知是后一种情况。可以看成是more than all the North American Great Lakes combined do，比较对象是水和水，ok。
(D) while作为连词表示当…的时候或者表示转折,而原句并没有这种逻辑关系; D，which指代20%的淡水，20%的淡水is more than all the lakes combined,将一定数量的水与湖比较，比较对象错误
A 选项，more than all the North American Great Lakes combined. 作为状语，修饰前面动作hold，
D 选项，which引导定语从句which is more than all the North American Great Lakes combined应就近修饰，这里只能修饰20 percent of the world's fresh water，这是不正确的。
D，which指代20%的淡水，20%的淡水is more than all the lakes combined,将一定数量的水与湖比较，比较对象错误
A，Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.A do B, more than C可以表示A do B more than do C,也可以表示A do B, more than C do B,这里根据语意可知是后一种情况。可以看成是more than all the North American Great Lakes combined do，比较对象是水和水，ok。
B，that做介词，指代20%的淡水，语意ok。但语法上，在正式的书面英语里that不能单独做代词，类似于that/this不能指代一件事；只有在平行结构、比较结构里为了避免重复表达才可以用that/those做代词指代前面提过的东西时，如：sth in A are like those in B；as……as those charging 500；A……than/like/exceed/，或是those materials，that girl等
E，more than形容词做伴随状语，逻辑主语是贝加尔湖，补全是：Lake Baikal is more than all the North American Great Lakes combined，贝加尔湖比北美全部的大湖加起来还要多，逻辑错误，贝加尔湖没法多，是世界上20%的水多。more than句没法做独立主格，因为因为more than all the North American Great Lakes不能看成一个名词，more没法修饰all；more than 300 rivers才是一个名词，more修饰300
(a) the lake holds..., more than ... combined. correct
problem in choice (e), which implies that lake baikal itself is somehow "more than all the North American Great Lakes combined". that doesn't make sense. →the fresh water才是比较对象
problem in choice (d), this is a direct comparison:(amount of water) IS MORE THAN (specific lakes) that's an illogical comparison; you can't compare a numerical amount of water (a numerical quantity) to a lake (a physical object).
个人感觉这道题的独立主格结构用法好像没啥错误......
B that从句错误
C 主语重复
D while使用错误
E More than all the North American Great Lakes combined应该是修饰holds 20 percent of the world's fresh water的，这里直接修饰lake了
在逻辑上，三百条河流入Baikal应是在描述Siberia's Lake Baikal的性质的，而描述名词的均应该是定语，不能使用状语。
(d)
this is a direct comparison:
(amount of water) IS MORE THAN (specific lakes)
that's an illogical comparison; you can't compare a numerical amount of water (a numerical quantity) to a lake (a physical object).
there's also the fact that (d) contains a "which" modifier that's modifying another "which" modifier.
that's not actually ungrammatical, but i would bet big money that you will never see that sort of thing in a correct answer.
nice
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RON：when you have an INITIAL MODIFIER THAT'S NOT A CLAUSE (i.e., it doesn't have its own subject and verb), then it must modify the immediately following noun.
same problem in choice (e), which implies that lake baikal itself is somehow "more than all the North American Great Lakes combined". that doesn't make sense.
thanks
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A more than all the North American Great Lakes combined. 独立主格作状语，修饰的是前面整个句子，而不是单独修饰水量或者贝加尔湖，正确
B比较的是水量和湖 错误
C有两个主语 错误
D比较水量和湖 错误
E句首More than all the North American Great Lakes combined修饰的是Siberia's Lake Baikal，指贝加尔湖比北美所有湖加起来都大 错误
B选项 “， that”错了，且根据背景原则，一定是“有三百条河流入”是背景，因为有300条河流入，才会有全球20% fresh water的占有量；
C选项 主语重复，且more than比较级修饰错误，have more of water than that是错的，这里是那句子和that（水）比较；
D选项， while错误
E选项，比较对象错误
【独立主格结构】
错选E
“with more than 300 rivers draining into it”是独立主格结构，应该充当状语而非定语。在E选项中，其充当了定语修饰了Siberia's Lake Baikal，所以是错误的
请问为什么which is more than all the North American Great Lakes combined修饰20 percent of the world's fresh water是错误的呢？A选项不也是more than all the North American Great Lakes combined修饰20 percent of the world's fresh water 这样吗？
a选项morethan...是做状语修饰前句hold主语是which 也就是SIberia's Lake Baikall吧 但是D是作定语从句 虽然说可以跳跃修饰 但是根据句意 应该做状语更好（个人理解 不一定准确）
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https://www.manhattanprep.com/gmat/forums/more-than-300-rivers-drain-into-t5054.html
BC语法上有硬伤，
D，while表示与此同时，当……时，或表示转折，此处没有转折之意，只能作当……时理解。当300条河汇入（贝加尔湖）时，贝加尔湖拥有世界上20%的淡水，while对贝加尔湖拥有20%的淡水这一状态的时间进行了限制，错误！
E，就近原则，more than要么作状语修饰holds，贝加尔湖拥有世界上20%的淡水，（伴随着贝加尔湖）比所有的北美大湖加起来还要多，伴随的逻辑合理，但不是贝加尔湖比300个湖多，是贝加尔湖拥有的淡水比300个湖多，伴随状语的逻辑主语不合理；more than要么做定语修饰贝加尔湖，依然是贝加尔湖拥有的淡水比300个湖多，错误！
A，超过300条河汇入贝加尔湖，which拥有世界上20%的淡水，比所有的北美大湖加起来还要多。语法和语意都顺利成立
一般有with的从句就基本是错的