新GRE阅读理解36套每日讨论--22（群14106147）

普渡哥

Since science tries to deal with reality, even the most
  precise sciences normally work with more or less
  imperfectly understood approximations toward which
  scientists must maintain an appropriate skepticism. Thus,
5 for instance, it may come as a shock to mathematicians
  to learn that the Schrodinger equation for the hydrogen
  atom is not a literally correct description of this atom,
  but only an approximation to a somewhat more correct
  equation taking account of spin, magnetic dipole, and relativistic
10 effects; and that this corrected equation is itself only an
  imperfect approximation to an infinite set of quantum
  field-theoretical equations. Physicists, looking at the original
  Schrodinger equation, learn to sense in it the
  presence of many invisible terms in addition to the
15 differential terms visible, and this sense inspires an entirely
  appropriate disregard for the purely technical features of the
  equation. This very healthy skepticism is foreign to the
  mathematical approach. Mathematics must deal with
  well-defined situations. Thus, mathematicians
20 depend on an intellectual effort outside of mathematics for
  the crucial specification of the approximation that mathematics is to take literally.


(177 words)


11. According to the passage, scientists are skeptical
toward their equations because scientists
(A) work to explain real, rather than theoretical
or simplified, situations
(B) know that well-defined problems are often
the most difficult to solve
(C) are unable to express their data in terms of
multiple variables
(D) are unwilling to relax the axioms they have
developed
(E) are unable to accept mathematical
explanations of natural phenomena




12. The author implies that scientists develop a
healthy skepticism because they are aware that
(A) mathematicians are better able to solve
problems than are scientists
(B) changes in axiomatic propositions will
inevitably undermine scientific arguments
(C) well-defined situations are necessary for the
design of reliable experiments
(D) mathematical solutions can rarely be
applied to real problems
(E) some factors in most situations must remain
unknown

guijiehao333

A E

xling332

A E

lemonade88

11,A
12,D

Liam0205

AE

yangouu

AE

jasonliu119

AE

普渡哥

第二个正确答案是E，第一个还没有人做对：） 继续加油！

guijiehao333

11  D？

普渡哥

不好意思，我看错了：） 是AE，大家都对了：）

大家明天见，早点睡觉，加油复习！