在GRE數(shù)學考試中,一般都假定以下信息為真:

●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(fā)現(xiàn),上述假設(shè)實際上就是ETS 出題原則,即:

●所有的數(shù)都是實數(shù);

●除非GRE數(shù)學題目中專門指出假設(shè)所有圖形都在同一個平面內(nèi);

●所有的角的測量值都是正數(shù);

●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”);

●伴隨問題的圖形將為解題提供有用的信息。但是,只有在GRE數(shù)學的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信息去解題。否則,只能運用你的數(shù)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。

關(guān)于GRE數(shù)學考試中可以遵循的規(guī)律的介紹就是這些,希望你看完之后能夠?qū)RE數(shù)學有一個更加深刻的認識,同時掌握好這些規(guī)律將能夠幫助你很好的解決以前無法解決的GRE數(shù)學題目。