新SAT数学练习及答案解析【详细讲解】!改革之后,新SAT数学考试难度有所增加,但是对于国内考生来说只要能读懂题并且认真答题,大部分是可以取得满分的。下面智课网为大家带来了新SAT数学练习题,考生可以在考前60天多结合练习掌握考点。

  Read the following SAT test question and thenclick on a button to select your answer.

  According to a standard weather table, when the airtemperature is 59 degree Fahrenheit (°F) at sealevel, the air temperature is 48.3°F at an altitude 3,000 feet (ft) above sea level. If airtemperature depends linearly on altitude, then which of the following gives the airtemperature, T, in °F, as a function of altitude, h, in feet?

  A.T(h)=59-3.6h

  B.T(h)=59-10.7h

  C.T(h)=59-0.0107h

  D.T(h)=59-0.0036h

  重点单词讲解:

  bacteria [bæk'tiəriə] n. (复数)细菌

  calculated ['kælkjuleitid] adj. 计算出的;适合的;

  temperature ['tempritʃə(r)] n. 温度,气温,体温,发烧

  initial [i'niʃəl] n. (词)首字母

  altitude ['æltitju:d] n. 高度,海拔,高地

  option ['ɔpʃən] n. 选择权,可选物,优先购买权

  approximately [ə'prɔksimitli] adv. 近似地,大约

  function ['fʌŋkʃən] n. 功能,函数,职务,重大聚会

  multiple ['mʌltipl] adj. 许多,多种多样的

  答案:D

  解析:

  Option D is correct. The rate of change can becalculated by subtracting 48.3 from 59 and thendividing by 3000. Therefore, the rate of change isapproximately 0.0036, and the initial value for Tat sea level is 59°F.

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