1.氧气和饮料 One of the limiting factors in human physical performance is theamount of oxygen that is absorbed by the muscles from the bloodstream.Accordingly, entrepreneurs have begun selling at gymnasiums and health clubsbottles of drinking water, labeled "SuperOxY" that has extra oxygendissolved in the water: Such water would be useless in improving physicalperformance, however, since the only wayto get oxygen into the bloodstream so that it can be absorbed by the muscles isthrough the lungs. Which of the following, if true, would serve the same function inthe argument as the statement in boldface? A. the water lost in exercising can be replaced with ordinary tapwater B. the amount of oxygen in the blood of people who are exercising isalready more than the muscle cells can absorb C. world-class athletes turn in record performances without suchwater D. frequent physical exercise increases the body s ability to takein and use oxygen E. lack of oxygen is not the only factor limiting human physicalperformance F:限制人类身体机能的一个因素是肌肉从血液里吸收的氧气 P:让氧气进入血液并能使肌肉吸收的唯一途径是通过肺 C:科学家发明的带有超级氧气的瓶装水不能增加人类的身体机能 Q:问水无用的另一个原因 思路:能解释原因,且与氧气相关联的 选项:A,解释了流失的水,❌;B,运动中的人的血液中的氧气已经超过肌肉细胞可以吸收的量了,✔;C,世界级的运动员打破纪录不需要这种水,❌;D,经常身体锻炼能增加身体吸收和使用氧气的能力,❌;E,无法解释,❌ 2.氮肥 F:氮肥会污染环境 P:科学家搞了个新种子,可以减少氮肥使用,并且不减少产量 C:这样做并不会减少污染 问支持 Q:问加强 思路:寻找方案的副作用 方向:可以减少氮肥的使用,但是新种子在使用过程中会产生其他污染环境的副产品 3.乐观防止心脏病 对10,000 个 individuals做的 survey, in eight years, people with open heart and optimisticattitude 患心脏病的几率比 pessimistic 的人低30%。由此得出,一个最佳的保持健康身体的有效方法就是保持开朗乐观。 问题:作者因为犯了啥错使得他这个观点有理由被质疑呢(put his reasoning into a skeptical place) 其中三个选项: A. 他丫没考虑到影响心脏病发病率的其他诸多因素,该打。 B. 他丫用一段时间的事儿(就是指的那&年咯)推到整个生命这么长时间的事儿,该打。 C. 他丫把两件同时发生的事看成是a cause-and-effect event, 但是又木有给出具体 evidence 证实这个因果关系,该打。 F:对1000个人做一个八年的追踪调查 P:开朗乐观的人患心脏病的几率比悲观的人低30% C:保持身体健康的有效方法是保持积极乐观的态度 Q:问削弱 选项:A,即使其他因素存在也不能保证心态与患病存在因果关系;B,不能削弱;C,相关因果关系,但未给出因果,只给出相关关系,无法证明是否为因果;
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