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Certain messenger molecules fight damage to the lungs from noxious air by telling the muscle cells encircling the lungs' airways to contract. This partially seals off the lungs. An asthma attack occurs when the messenger molecules are activated unnecessarily, in response to harmless things like pollen or household dust.

Which of the following, if true, points to the most serious flaw of a plan to develop a medication that would prevent asthma attacks by blocking receipt of any messages sent by the messenger molecules referred to above?

正确答案: D

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FLAW IN THE REASONING QUESTIONS

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楼主
发表于 2004-10-11 08:05:00 | 只看该作者

FLAW IN THE REASONING QUESTIONS


FLAW IN THE REASONING QUESTIONS


The correct answer will identify the error in the author’s reasoning and describe that error in general terms. Closely examine the relationship between the premises and the conclusion


1.       UNCERTAIN USE OF A TERM OR CONCEPT


Ambiguous use/different meaning/in two different ways/equivocate/shift in meaning/fails to define


2.       SOURCE ARGUMENT(针对人)


Attacks the person (or source) instead of the argument they advance.


Makes an attack on the character of opponents


It is directed against the proponent of a claim rather than against the claim itself


He directs his criticism against the person making the argument rather than directing it against the argument itself


It draws conclusions about the merit of a position and about the content of that position from evidence about the position’s source


Assuming that a claim is false on the grounds that the person defending it is of questionable character


3.       CIRCULAR REASONING(the premise and the conclusion are identical in meaning)


Assumes as true what is supposed to be proved.


It assumes what it seeks to establish


Argues circularly by assuming the conclusion is true in stating the premises


Presupposes the truth of what it sets out to prove


The argument assumes what it is attempting to demonstrate


It takes for granted the very claim that it sets out to establish


It offers, in place of support for its conclusion, a mere restatement of that conclusion


4.       ERROR OF CONDITIONAL REASONING


It is often used the word “sufficient(assured)”, “necessary(required)” to indicate this kind of errors


Taking the nonexistence of sth as evidence that a necessary precondition for that thing also did not exist (MISTAKEN NEGATION)


Mistakes being sufficient to justify punishment for being required to justify it (MISTAKEN REVERSAL)


It treats sth that is necessary for bringing about a state of affairs as sth that is sufficient to bring about a state of affair(CONFUSES A NECESSARY CONDITION FOR A SUFFICIENT CONDITION)


From the assertion that sth is necessary to a moral order, the argument concludes that that thing is sufficient for an element of the moral order to be realized (CONFUSES A NECESSARY CONDITION FOR A SUFFICIENT CONDITION)


Confuses a sufficient condition with a required condition (CONFUSE A SUFFICIENT  CONDITION FOR A NECESSARY CONDITION)


Infers from the idea that the current geography of modern cities resulted from a particular cause that it could only have resulted from that cause.


5.       MISTAKEN CAUSE AND EFFECT


Note the frequency with which the word “cause ” or ”effect” are used


(1) assuming a causal relationship on the basis of the sequence of events


mistakes a temporal relationship for a causal relationship


(2) assuming a causal relationship when only a correlation exists


confusing the coincidence of two events with a causal relation between the two


assumes a causal relationship where only a correlation has been indicated


(3) failure to consider an alternative cause for the effect, or an alternative cause for both the cause and the effect


fails to exclude an alternative explanation for the observed effect


overlooks the possibility that the same thing may causally contribute both to education and to good health


(4) failure to consider that the events may be reversed


the author mistakes an effect for cause


6.       STRAW MAN


The author attempts to attack an opponent’s position by ignoring the actual statement made by the opposing speaker and instead distorts and refashions the argument, making it weaker in the process. Often use the phrase “what you’re saying is” or ”if I understand you correctly” to preface the refashioned and weakened argument


Refutes a distorted version of an opposing position


Misdescribing the student representative’s position, thereby making it easier to challenge


Portrays opponents’ views as more extreme than they really are


Distorts the proposal advanced by opponents


7.       GENERAL LACK OF RELEVANT EVIDENCE FOR THE CONCLUSION


The author cites irrelevant data


Draws a conclusion that is broader in scope than is warranted by the evidence advanced


It uses irrelevant facts to justify a claim about the quality of the disputed product


It fails to give any reason for the judgment it reaches


It introduces information unrelated to its conclusion as evidence in support of that conclusion


8.       INTERNAL CONTRADICTION


Bases a conclusion on claims that are inconsistent with each other


The author makes incompatible assumptions


Introduce information that actually contradicts the conclusion


Offers in support of its conclusion pieces of evidence that are mutually contradictory


Some of the evidence presented in support of the conclusion is inconsistent with other evidence provided


Assumes sth that it later denies, resulting a contradiction


9.       APPEAL FALLACIES


(1) appeal to authority


the judgment of experts is applied to a matter in which their expertise is irrelevant


the argument inappropriately appeals to the authority of the major


it relies on the judgment of experts in a matter to which their expertise is irrelevant


accepts a claim on mere authority, without requiring sufficient justification


(2) appeal to popular opinion/numbers


it treats popular opinion as if it constituted conclusive evidence for a claim


attempts to discredit legislation by appealing to public sentiment


a claim is inferred to be false merely because a majority of people believe it to be false


the argument, instead of providing adequate reasons in support of its conclusion, makes an appeal to popular opinion.


(3) appeal to emotion


attempts to persuade by making an emotional appeal


uses emotive language in labeling the proposals


the argument appeals to emotion rather than reason


10.   SURVEY ERRORS


(1) use a biased sample


uses evidence drawn from a small sample that may well be unrepresentative


generalizes from an unrepresentative sample


states a generalization based on a selection that is not representative of the group about which the generalization is supposed to hold true


(2) questions are improperly constructed


(3) respondents give inaccurate responses


11.   EXCEPTIONAL CASE/OVERGENERALIZATION


Takes a small number of instances and treats those instances as if they support a broad, sweeping conclusion.


Supports a universal claim on the basis of a single example


The argument generalizes from too small a sample of cases


Too general a conclusion is made about investing on the basis of a single experiment


Bases a general claim on a few exceptional instances


12.   ERRORS OF COMPOSITION AND DIVISION


COMPOSITION: attributes a characteristic of part of the group as a whole or to each member of the group


DIVISION: attributes a characteristic of the whole or each number of the whole to a part of the group.


Judgments about groups and parts of a group


Assuming that because sth is true of each parts of a whole it is true of the whole itself


Improperly infers that each and every scientist has a certain characteristic from the premise that most scientists have that characteristic


Takes the view of one lawyer to represent the views of all lawyers


Presumes, without justification, that what is true of a whole must also to be true of its constituent parts


13.   FALSE ANALOGY


Treats as similar two cases that are different in a critical respect


Treats two kind of things that differ in important respects as if they do not differ


14.   FALSE DILEMMA


Assume that only two course of action are available when there may be others


Fails to consider that some students may be neither fascinated by nor completely indifferent to the subject being taught


15.   ERRORS IN THE USE OF EVIDENCE


(1) Lack of evidence for/against a position is taken to prove that position is false/true


   treats failure to prove a claim as constituting denial of that claim


   taking a lack of evidence for a claim as evidence undermining that claim


   treating the failure to establish that a certain claim is false as equivalent to a demonstration that the claim is true


(2) only some evidence against/for a position is take to prove that position is false/true(draw must be conclusion from some evidence)


    it confuses undermining an argument in support of a given conclusion with showing that the conclusion itself is false


    the argument takes evidence showing merely that its conclusion could be true to constitute evidence showing that the conclusion is in fact true


16.   TIME SHIFT ERRORS


Treat a claim about what is currently the case as if it were a claim about what has been the case for an extended period


Uncritically draws an inference from what has been true in the past to what will be true in the future


17.   NUMBERS AND PERCENTAGE ERRORS


The argument confuses the percentage of the budget spent on a program with the overall amount spent on that program



[此贴子已经被作者于2005-3-1 21:30:35编辑过]
沙发
发表于 2004-10-11 11:14:00 | 只看该作者

Great job!

板凳
发表于 2004-10-11 11:20:00 | 只看该作者
up, well done!
地板
发表于 2004-10-12 01:19:00 | 只看该作者

谢谢lawyer


你的贴子给我的帮助太大了


[此贴子已经被作者于2004-10-12 1:34:11编辑过]
5#
发表于 2004-11-3 17:37:00 | 只看该作者

谢谢lawyer

实在太好了

6#
发表于 2004-11-28 21:42:00 | 只看该作者

知恩图报。顶一把。

7#
发表于 2004-11-30 23:45:00 | 只看该作者

还是lawyer老哥厉害,我要是考前看到这个帖子,就不必题海战术了。

8#
发表于 2004-12-1 08:41:00 | 只看该作者

what's the meaning of this sentence?

It draws conclusions about the merit of a position and about the content of that position from evidence about the position’s source

9#
 楼主| 发表于 2004-12-1 09:10:00 | 只看该作者
从观点来源得出对观点的评价。
10#
发表于 2004-12-1 09:18:00 | 只看该作者
谢,看看gwd-2-14好不好。lawyer NN
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