7. In this argument the author concludes that people trying to lose weight are better
off consuming sugar than the artificial sweetener aspartame. To support this conclusion
the author argues that aspartame can cause weight gain by triggering food cravings,
whereas sugar actually enhances the bodys ability to bum fat. Neither of these reasons
provides sufficient support for the conclusion.
The first reason that aspartame encourages food cravings is supported by research
findings that high level s of aspartame deplete the brain chemical responsible for
registering a sense of being sated, or full. But the authors generalization based on this
research is unreliable. The research was based on a sample in which large amounts of
aspartame were administered; however, the author applies the research findings to s
target population that includes all aspartame users, many of whom would probably not
consume high levels of the artificial sweetener.
The second reason that sugar enhances the bodys ability to bum fat is based on
the studies in which experimental groups, whose members consumed sugar after at least
45 minutes of continuous exercise, showed increased rates of fat burning. The authors
general claim, however, applies to all dieters who use sugar instead of aspartame, not
just to those who use sugar after long periods of exercise. Once again, the authors
generalization is unreliable because it is based on a sample that clearly does not
represent all dieters.
To conclude, each of the studies cited by the author bases its findings on evidence
that does not represent dieters in general; for this reason, neither premise of this
argument is a reliable generalization. Consequently, I am not convinced that dieters are
better off consuming sugar instead of aspartame.
大学英语四级词汇54
四级词汇词根联想记忆法12
大学英语四级词汇50
大学英语四级词汇73
大学英语四级词汇69
大学英语四级词汇36
大学英语四级词汇43
大学英语四级词汇39
大学英语四级词汇55天
大学英语四级词汇41
大学四级英语常考短语讲义第八讲
四级词汇词根联想记忆法20
四级词汇词根联想记忆法3
四级词汇词根联想记忆法8
大学英语四级词汇66
大学英语四级词汇70
大学英语四级词汇67
大学英语四级词汇58
大学英语四级词汇64
大学英语四级词汇52
大学英语的四级词汇
四级词汇词根联想记忆法19
大学英语四级词汇35
大学英语四级词汇37
四级词汇词根联想记忆法13
四级词汇词根联想记忆法4
大学英语四级词汇62
大学英语四级词汇45
四级词汇词根联想记忆法5
四级词汇词根联想记忆法24
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |