GRE数学考试找准方法就不会觉得难


发布人:admin           2019-05-08 17:27:20

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摘要: 在GRE数学考试中,一般都假定以下信息为真: All numbers used are real numbers; All figures lie on a plane unless otherwiseindicated; All angle measures are positive; All lines shown as straight are straight. On the computer-based test, lines thatappearjagged can also be assumed to be straight (lines can look somewhat jagged on thecomputer screen): Figures are intended to provide useful information for answering the questions.

   在GRE数学考试中,一般都假定以下信息为真:

  All numbers used are real numbers;

  All figures lie on a plane unless otherwiseindicated;

  All angle measures are positive;

  All lines shown as straight are straight. On the computer-based test, lines thatappear“jagged" can also be assumed to be straight (lines can look somewhat jagged on thecomputer screen):

  Figures are intended to provide useful information for answering the questions.However,except where a figure is accompanied by a“Note" stating that the figure is drawntO scale, solve the problem using your knowledge of mathematics, not by visualmeasurement or estimation.

  细心的考生会发现,上述假设实际上就是ETS 出题原则,即:

  所有的数都是实数;

  除非GRE数学题目中专门指出假设所有图形都在同一个平面内;

  所有的角的测量值都是正数;

  所有显示为直线的线均可当作直线来处理(在机试中,因为电脑显示器的原因,直线可能会看起来呈“锯齿状”);

  伴随问题的图形将为解题提供有用的信息。但是,只有在GRE数学的问题中指出本图形是按比例画出(drawn to scale)时,才可以用目测或估计而得到的信息去解题。否则,只能运用你的数学知识去回答问题。这一解题原则可以简称为“只能读图,不能度量”的原则。

 

 

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