2010年12月23日SAT數(shù)學(xué)題庫(kù)精選試題

在 SAT 數(shù)學(xué)部分，解答問(wèn)題所需要的全部信息都提供給了每個(gè)考生。因此，考生在仔細(xì)閱讀題干以后所需要做的就是思考解題的方法。誠(chéng)然，每一道SAT數(shù)學(xué)題都可能有一種乃至多種解題方法，但考生還是要盡量尋找最為便捷的途徑，節(jié)省考場(chǎng)上寶貴的時(shí)間。 我們從SAT數(shù)學(xué)題庫(kù)中精選了一些題目，會(huì)陸續(xù)提供給大家，答案和解析在第二頁(yè)。

　　Read the following SAT test question, then click on a button to select your answer.

　　


　　What is the area of the triangle in the figure above?

　　A.4.0

　　B.7.5

　　C.8.0

　　D.8.5

　　E.15.0

答案和解析

　　Correct Answer: B

　　Here's Why:

　　Figures in a Coordinate Plane

　　The figure provides all the information you need to answer the question.

　　What Is the Question Asking?

　　You are asked to figure out the area of a triangle that is defined by the points in a coordinate plane.

　　What Do You Know?

　　The triangle in the figure is a right triangle with the right angle at the lower left.

　　Because it is a right triangle, its base and height are the two sides that form the right angle.

　　The area of a triangle isbh.



　　The base of the triangle extends from point (0, 0) to point (5, 0). So it is 5 units long.

　　The height of the triangle extends from point (0, 0) to point (0, 3). So it is 3 units long.

　　Area =bh=(3)(5)= (15)= 7.5

　　Difficulty: Medium

　　Question Type: Standard Multiple Choice

　　在充分理解SAT數(shù)學(xué)考試題型、掌握考試規(guī)律、多做SAT數(shù)學(xué)題庫(kù)的基礎(chǔ)上，相信廣大考生只要經(jīng)過(guò)自己的努力訓(xùn)練，一定能夠在SAT數(shù)學(xué)部分獲得優(yōu)異成績(jī)，為進(jìn)入美國(guó)一流本科學(xué)府深造打下堅(jiān)實(shí)的基礎(chǔ)。


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