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楼主
发表于 2009-11-29 00:28:32 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
33. GWD21-Q33:

One of the limiting factors in human physical performance is the amount of oxygen that is absorbed by the muscles from the bloodstream.  Accordingly, entrepreneurs have begun selling at gymnasiums and health clubs bottles of drinking water, labeled “SuperOXY,” that has extra oxygen dissolved in the water.  Such water would be useless in improving physical performance, however, since the only way to get oxygen into the bloodstream so that it can be absorbed by the muscles is through the lungs.



Which of the following, if true, would serve the same function in the argument as the statement in boldface?



A.      the water lost in exercising can be replaced with ordinary tap water

B.      the amount of oxygen in the blood of people who are exercising is already more than the muscle cells can absorb

C.      world-class athletes turn in record performances without such water

D.      frequent physical exercise increases the body’s ability to take in and use oxygen

E.       lack of oxygen is not the only factor limiting human physical performance

这题黑体字的意思不是“使氧气进入血液的唯一方法就是通过肺部使氧气被肌肉吸收”~俺觉得下面没一个能替换的
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沙发
 楼主| 发表于 2009-11-29 12:33:41 | 只看该作者
请XDJM们看看啊~
板凳
发表于 2009-11-29 18:00:17 | 只看该作者
One of the limiting factors in human physicalperformance is the amount of oxygen that is absorbed by the musclesfrom the bloodstream.  Accordingly, entrepreneurs have begun selling atgymnasiums and health clubs bottles of drinking water, labeled“SuperOXY,” that has extra oxygen dissolved in the water.  Such waterwould be useless in improving physical performance, however, since the only way to get oxygen into the bloodstream so that it can be absorbed by the muscles is through the lungs.

结论是这种such water would be useless in improving physical performance,
原因就是
the only way to get oxygen into the bloodstream so that it can be absorbed by the muscles is through the lungs.
所以黑体字部分的fonction是为了证明这种水对提高
physical performance没有用。

那么只要选出一个同样可以证明这种水没有用的选项即可。
B 说 the amount of oxygen in the blood of people who are exercising is already more than the muscle cells can absorb  血液中已有的氧气含量已经超过肌肉可以吸收的程度。 所以无论这种水多么牛,人体都不能吸收啦! fonction 和黑体部分是一样的。


地板
 楼主| 发表于 2009-11-30 12:10:10 | 只看该作者
嗯~做这种题不能但看黑体部分,还要根据句子来判断。谢谢楼上啦
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