Preptest 37-2-4,5,求解

blueflower86 · 发表于 2009-11-18 15:14:19

4. Compare to us, people who lived a century ago had very few diversions to amuse them. Therefore, they likely read much more than we do today.
-most weaken the argument
B。 On average, people who lived a century ago had considerably less leisure time than we do today.
C. The number of books sold today is larger than it was a century ago.

答案选B.我本人也是选择B。但是选的时候有些犹豫。想弄清楚其中的差别。

5. Although consciousness seems to arise from physical processes, physical theories can explain only why physical systems have certain physical structures and how these systems perform various physical functions. Thus, no strictly physical theory can explain consciousness.
----Assumption

B. An explaination of consciousness must encompass more than an explaination of physical structures and functions.
C. The physical structures and functions of consciousness are currently unknown.

Answer is B.

GMATMASTER · 发表于 2009-11-19 21:53:14

4. The argument relies on some assumptions. Here, B. weakens the availability of leisure time to read. C. is intended to attack the availability of books to read. But C is about the total number of books sold, not on the "average" level. Considering the population explosion over the past century, there are much more people today than a century ago. With C only, We do not know whether "on average, people who lived a century ago had considerably fewer books to read than we do today". Besides, people of one century ago could obtain books to read through other ways than buying.

GMATMASTER · 发表于 2009-11-20 07:30:17

5. The conclusion is that physical theories cannot explain consciousness, not that consciousness cannot be explained at all. It is possible that the physical structures and functions of consciousness are KNOWN and can be explained by some other theories, but cannot be explained by physical theories.

Preptest 37-2-4,5,求解

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