新GRE數學考試出題原則

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GRE數學考試一直是GRE考試害怕的一個存在,其實GRE數學考試是有規律可循的,在GRE數學考試中,一般都假定以下資訊為真:

新GRE數學考試出題原則

●All numbers used are real numbers;

●All figures lie on a plane unless otherwise indicated;

●All angle measures are positive;

●All lines shown as straight are straight. On the computer-based test, lines that appear“jagged" can also be assumed to be straight (lines can look somewhat jagged on the computer 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 drawn tO scale, solve the problem using your knowledge of mathematics, not by visual measurement or estimation.

細心的讀者會發現,上述假設實際上就是ETS出題原則,即:

●所有的數都是實數;

●除非題目中專門指出假設所有圖形都在同一個平面內;

●所有的角的測量值都是正數;

●伴隨問題的圖形將為解題提供有用的資訊。但是,只有在問題中指出本圖形是按比例畫出(drawn to scale)時,才可以用目測或估計而得到的資訊去解題。否則,只能運用你的數學知識去回答問題。這一解題原則可以簡稱為“只能讀圖,不能度量”的原則 ;

●所有顯示為直線的線均可當作直線來處理(在機試中,因為電腦顯示器的原因,直線可能會看起來呈“鋸齒狀”) 。