gre范文：GRE作文范文大全（118）
本文主要讲解GRE作文相关内容，希望能帮助童鞋们提高写作能力。查字典出国留学网编辑部敬上。
Another problem with the argument is that the author's conclusion is too broad. Based on
evidence about certain chemicals that might cause two particular heath-related symptoms, the
author concludes that the recalled tuna contains no chemicals that pose a health risk. However,
the author fails to account for the myriad of other possible health risks that the recalled tuna
might potentially pose. Without ruling out all other such risks, the author cannot justifiably
reach his conclusion.
A third problem with the argument involves that fact that the eight particular chemicals with
which the test was concerned are only the eight "most commonly blamed" for nausea and
dizziness. It is entirely possibly that other chemicals might also cause these symptoms, and
that one or more of these other chemicals actually caused the symptoms. Without ruling out
this possibility, the author cannot jusufiably conclude that the recalled tuna would not cause
nausea and dizziness.
A final problem with the argument involves thetesting procedure itself. The author provides
no information about the number of recaUed cans tested or the selection method used. Unless
the number of cans is a sufficiently large sample and is statistically repre sentative of all the
recalled cans, the study's results are not statistically reliable.
In conclusion, the article is unconvincing as it stands. To strengthen the assertion that the
recalled tuna would not cause nausea and dizziness, the author must provide evidence that
the three chemicals mentioned that occur naturally in other canned foods also appear naturally
in Promofoods' tuna. The author must also provide evidence that ingesting other canned foods
containing these three chemicals does not cause these symptoms. To better evaluate the
argument, we would need to know whether the sample used in the tests was statistically
significant and representative of all the recalled tuna. We would also need to know what other
chemicals in the recalled tuna might pose any health risk at all. 感谢您阅读《GRE作文范文大全（118） 》一文，查字典出国留学网()编辑部希望本文能帮助到您。本文主要讲解GRE作文相关内容，希望能帮助童鞋们提高写作能力。查字典出国留学网编辑部敬上。
Argument 54
The following appeared in a local newspaper.
"People should not be misled by the advertising competition between Coldex and Cold-Away,
both popular over-the-counter cold medications that anyone can purchase without a doctor's
prescription. Each brand is accusing the other of causing some well-known, unwanted side
effect: Coldex is known to contribute to existing high blood pressure and Cold-Away is known
to cause drowsiness. But the choice should be clear for most health-conscious people:
Cold-Away has been on the market for much longer and is used by more hospitals than is
Coldex. Clearly, Cold-Away is more effective."
This argument concludes that Cold-Away is a more effective non-prescription cold
medication than Coldex. The argument points out that each one has a distinct unwanted side
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effect: Cold-Away causes drowsiness, while Coldex contributes to existing high blood pressure.
To support its conclusion, the argument points out that Cold-Away has been on the market
considerably longer, and that it is used by more hospitals than Coldex. I find the argument
unconvincing for three reasons.
First, the mere fact that Cold-Away has been on the market longer than Coldex is scant
evidence of their comparative effectiveness. Well-established products are not necessarily
better than newer ones. Moreover, in my observation newer medicines often make use of
newer pharmaceutical developments than competing products; thus it can be argued that
since Cold-Away has been on the market longer than Coldex it is likely to be less, not more,
effective than Coldex.
Secondly, the argument unfairly assumes that hospitals prefer Cold-Away because of its
comparative effectiveness as a cold medication. It is entirely possible that hospitals do not
consider drowsiness an undesirable side effect for their patients. For that matter, perhaps
hospitals use Cold-Away primarily for this effect rather than as a cold medication.
A third problem with the argument involves Coldex's side effect: high blood pressure.
Admittedly, people who already have a serious blood pressure problem would probably be well
advised to use Cold-Away instead. However, only those people are susceptible to this side
effect. Thus for all other people the vast majority of cold-medicine users--Coldex's side effect
is irrelevant in choosing between the two products. Moreover, if a person without high blood
pressure wishes to avoid drowsiness, Coldex would seem to be the preferable medication. 感谢您阅读《GRE作文范文大全（118） 》一文，查字典出国留学网()编辑部希望本文能帮助到您。本文主要讲解GRE作文相关内容，希望能帮助童鞋们提高写作能力。查字典出国留学网编辑部敬上。
In sum, the argument is unconvincing as it stands. To strengthen it, the argument's
proponent must provide dear evidence that hospitals prefer Cold-Away because of its
effectiveness in treating colds. To better assess the argument, I would need better evidence
comparing the effectiveness of the two products--perhaps through clinical studies or reliable
surveys of the general population.
Argument 55
A folk remedy* for insomnia, the scent in lavender flowers, has now been proved effective. In a
recent study, 30 volunteers with chronic insomnia slept each night for three weeks on
lavender-scented pillows in a controlled room where their sleep was monitored. During the first
week, volunteers continued to take their usual sleeping medication. They slept soundly but
wakened feeling tired. During the second week, the volunteers discontinued their medication.
As a result, they slept less soundly than the previous week and felt even more tired. During the
third week, the volunteers slept longer and more soundly than in the previous two weeks. This
shows that over a short period of time lavender cures insomnia.
*A folk remedy is usually a plant-based form of treatment common to traditional forms of
medicine, ones that developed before the advent of modern medical services and technology.
The speaker concludes that the scent of lavender provides an effective short-term cure for
insomnia. To support this conclusion the speaker cites a three-week experiment in which
researchers monitored the apparent effects of lavender on 30 insomniacs, who slept on
lavender-scented pillows each night of the experiment. The speaker's account of the
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experiment reveals several critical problems with it. Together, these problems serve to
undermine the speaker's argument.
A threshold problem involves the definition of insomnia. The speaker fails to define this
critical term. Ifinsomnia is defined as an inability to fall asleep, then how soundly or long a
person sleeps, or how fired a person feels after sleep, is irrelevant to whether the person
suffers from insomnia. In short, without a dear definition of insomnia it is impossible to assess
the strength of the argument. 感谢您阅读《GRE作文范文大全（118） 》一文，查字典出国留学网()编辑部希望本文能帮助到您。