2. 题目的内容和形式更加多样化: 与实际生活、工作相结合 要求:积累与留心更多社会常识与经验
例题: A bank has opend a new branch and ,as part of a promotion, the bank branch is offering $1,000 certificates of deposit at an interst rate of 4% per year, compounded semiannually. The bank is selling certificates with terms of 1,2,3 or 4 years. Which of the following fuctions gives the total amount, A, in dollars, a customer will receive when a certificate with a term of k years is finnally paid. A) A= 1,000(1+0.04K) B) A=1,000(1+0.08K) C) A=1,000(1.04)k D) A=1,000(1.04)2k 解读:银行几乎与每个人的生活都息息相关,存款利率与收益具体如何计算则是这道题考查的重点。
例题: The cost of using a telephone in a hotel meeting room is $0.20 per minute. Which of the following equations represents the total cost c, in dollars, for h hours of phone use? A) c = 0.20(60h) B) c = 0.20h+60 C) c = 60h/0.20 D) c = 0.20h/60 解读:在实际生活中,在酒店除了房间费用,其他费用包括电话,mini-bar里的食品,甚至网络都是要收取相应费用的。这道题则是需要我们根据题目提供的信息建立酒店会议室电话费的计算公式。
图表题增加 要求:提高解读和整合数据能力 例题:
Michael swam 2,000 yards on each of eighteen days. The scatterplot above shows his swim time for and corresponding heart rate after each swim. The line of best fit for the data is also shown. For the swim that took 34 minutes, Michael’s actual heart rate was about how many beats per minutes less than the rate predicted by the line of best fit? A) 1 B) 2 C) 3 D) 4 解读:想要看懂图表,就需要理解图表中横纵轴以及点、线对应题目中的哪些文字信息。 这道题中则需要重点理解根据已知数据做出的预测与实际数据之间是会存在偏差,然后根据题目要求计算出实际差值。 与STEM,美国社会科学知识等领域紧密相关 要求:具备相应的科学背景知识、信息处理能力, 以及逻辑推理能力
例题: a = 1,052 + 1.08t The speed of a sound wave in air depends on the air temperature. The formula above shows the relationship between a, the speed of a sound wave, in feet per second, and t, the air temperature, in degrees Fahrenheit (°F). Which of the following expresses the air temperature in terms of the speed of a sound wave? A) t = (a-1052)/1.08 B) t = (a+1052)/1.08 C) t = (1052-a)/1.08 D) t = 1.08/(a+1052)
解读:这答题涉及物理学科相关知识,题目中已经给出公式以及相应解释。只要理解变量的意义以及相应单位,就可以按照题目要求解题。
例题: The number of states that joined the United States between 1776 and 1849 is twice the number of states that joined between 1850 and 1900. If 30 states joined the United States between 1776 and 1849 and x states joined between 1850 and 1900, which of the following equations is true? A) 30x=2 B) 2x=30 C) x2=30 D) x+30=2 解读:美国是联邦制国家,各个州加入联邦的时间不同,这道题以此背景,实际上考查学生找到变量和常量,建立简单方程式的能力。
例题: In order to determine if treatment X is successful in improving eyesight, a research study was conducted. From a large population of people with poor eyesight, 300 participants were selected at random. Half of the participants were randomly assigned to receive treatment X, and the other half did not receive treatment X. The resulting data showed that participants who received treatment X had significantly improved eyesight as compared to those who did not receive treatment X. Based on the design and results of the study, which of the following is an appropriate conclusion? A) Treatment X is likely to improve the eyesight of people who have poor eyesight. B) Treatment X improves eyesight better than all other available treatments. C) Treatment X will improve the eyesight of anyone who takes it. D) Treatment X will cause a substantial improvement in eyesight.
解读:这道题给我们简述了一个改善视力科学实验,从实验对象的选择,分组到进行实验,最后要求学生根据以上信息得出科学结论。
综上所述,虽然新SAT数学总体上对中国学生的要求更高了,满分并不像之前那么容易获得。但是中国学生仍可以凭借扎实的知识基础领先一步,只要不断提升阅读以及结合实际应用的能力,相信大家一定能取得理想的成绩。
注意在备考过程,要扎实学好初高中数学中涉及的知识点,熟练掌握计算方法,注重日常词汇阅读的积累,同时不断提升对文字的理解能力,锻炼提取核心数据信息和逻辑推理的能力,在实际生活中也需要多留心积累生活经验,提高解决实际问题的能力,从而在考试中将自身的数学优势发挥出来。(环球网) |