新GRE阅读题之逻辑单题精选
2. In the argument given, the two highlighted portions play which of the following roles?
A. The first is a position that the argument seeks to reject, the second is evidence that the argument uses against that position.
B. The first and the second are each pieces of evidence that have been used to support the position that the argument opposes.
C. The first presents the main conclusion of the argument; the second provides evidence in support of that conclusion.
D. The first is a judgment that serves as the basis for the main conclusion of the argument; the second states that main conclusion.
E. The first is an intermediate conclusion drawn in order to support a further conclusion stated in the argument; the second provides evidence in support of that intermediate conclusion.
答案：C
逻辑单题九
Columnist: Until very recently, Presorbin and Veltrex, two medications used to block excess stomach acid, were both available only with a prescription written by a doctor. In an advertisement for Presorbin, its makers argue that Presorbin is superior on the grounds that doctors have written 200 million prescriptions for Presorbin, as compared to 100 million for Veltrex. It can be argued that the number of prescriptions written is never a worthwhile criterion for comparing the merits of medicines, but that the advertisement’s argument is absurd is quite adequately revealed by observing that Presorbin was available as a prescription medicine years before Veltrex was.
1. In the columnist’s argument, the two highlighted portions play which of the following roles?
A. The first is a claim that the columnist’s argument seeks to clarify; the second states a conclusion drawn about one possible interpretation of that claim.
B. The first identifies the conclusion of an argument that the columnist’s argument is directed against; the second states the main conclusion of the columnist’s argument.
C. The first states the main conclusion of the columnist’s argument; the second states a conclusion that the columnist draws in defending that conclusion against an objection.
D. The first identifies an assumption made in an argument that the columnist's argument is directed against; the second states the main conclusion of the columnist’s argument.
E. The first is a claim that has been offered as evidence to support a position that the columnist opposes; the second states the main conclusion of the columnist’s argument.
答案：B
逻辑单题十
Members of the San, a hunter-gatherer society, have a diet far richer in fruits and vegetables and lower in salt than is typical in industrialized societies. They also differ from industrialized societies in that they have extremely low rates of high blood pressure and obesity. However, contrary to what some have claimed, if people in industrialized societies adopted the San’s diet, the incidence of high blood pressure and obesity in these societies might not be dramatically reduced, because ____________.
17. Which of the following most logically completes the passage?
A. psychological stress, which can also cause high blood pressure, occurs in both industrialized and nonindustrialized societies
B. the San’s low-salt diet is due, not to preference, but to the limited availability of salt in their region
C. a few members of the San have been found to suffer from circulatory system ailments other than high blood pressure
D. members of the San are far more physically active than are most members of industrialized societies
E. not all individuals with high blood pressure are obese
答案：D
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