SSAT数学Lesson1(学生版).doc

绍兴环球雅思上虞分校 SSAT数学Lesson 1一、SSAT考试内容和形式试题部分题目数量时间Essay（作文）1 topic25minQuantitative（数学） 25 questions30minVerbal （语文）60 questions30minReading （阅读）40 questions40minQuantitative （数学）25 questions30min二、SSAT考试注意事项（1）作文部分不计分，但作为学校录取学生的重要参考依据；（2）在赴考前需关注SSAT官方网站信息，以便再次确认考试日期及地点；（3）上午8:30前务必抵达考场办理报到手续由监考人员指定座位；（4）考试时间一般为上午9:00-11:4512:15左右；考试期间不允许饮水、进食或使用个人药品等；（5）考卷上要标明你当前的年级，而不是明年准备就读的年级；注意听清楚考前的考试说明，关于名字填写和不准跨区做题的要求要弄明白；（6）SSAT考试由题库出题，因此每个考生手上的试卷中的题目都是不完全相同的；（7）除作文外，其他4个Section的题目顺序是会变化的，最为常见的顺序是数学、阅读、数学、词汇；（8）考试期间有2次休息时间，第1次休息时间为5分钟，安排在作文部分完成之后，第2次休息时间为10分钟，安排在2个Section完成之后，注意休息期间也不允许互相谈论考试内容；三、SSAT考试需携带的物品（准考证上会标明的）（1）准考证（网上报名完成后打印的SSAT Admission Ticket）（2）护照原件及护照上有照片那一页的复印件一份（3）2张最近3个月的2寸证件照片（4）2B铅笔、圆珠笔和橡皮四、SSAT分数计算（1）作文部分不计分，其余部分所有的选择题，每答对一题得1分，答错一题扣1/4分，放弃得0分。同时，分数只和答对和答错的题数相关。（2）SSAT的计分主要采用以下两种方式： A. 等级分（scale score） 将题目的对错换算成等级分，低级SSAT，各部分的等级分区间在440-710，故总分为1320-2130；而高级SSAT，各部分的等级分区间在500-800，总分在1500-2400。按照等级分来说，通常TOP100的学校要求SSAT成绩在1800以上，而TOP20的学校要求成绩在2200以上。下面就是一个近似的换分表格（真实考试中可能会有些许波动）。RAW(原始分)READING(阅读)VERBAL(词汇)MATH（数学）608005580050779800457527824080072575535722698725306926716982566264466820632617641156025906141057256358455425335570512506530-5and lower（或更低）500500500 注：每个部分满分800分，最低500分，总分1500-2400分。B. 百分成绩用百分比来表示学生成绩在所有参考学生中所在的位置，最高为99%，最低为1%。一般美国SSAT考生的平均水平是：数学70%，阅读70%，词汇70%。学校对国际学生的要求通常是SSAT的平均水平在80%以上。每一个考生的分数都会与3年之内参加SSAT考试的同年级同性别考生的分数做一个比对，得到一个百分成绩（Percentile），意思是该考生的成绩在所有这些人中间高过多少人。五、SSAT数学词汇（一） 常见符号plus ;positiveminus ;negativemultiplied by ;timesdivided byequalsapproximately equalsnot equal toless thangreater thanequal to or less than equal to or greater than is a member of the setthereforebecauseparallel toperpendicular to, at right angles withangleright angledegreeminutesecondcirclepi|x|the absolute value of x（二） 常见几何计算公式平面图形的周长和面积：PerimeterAreaTriangle三边之和(底高)/2Square边长4边长的平方Rectangle(长+宽)2长宽Parallelogram(长+宽)2底高Trapezoid四边之和(上底+下底)高/2Rhombus边长4两条对角线之积的1/2Circle2r=dr2立体图形的表面积和体积VolumeSurface AreaRectangular Prism长宽高2(长宽+长高+宽高)Cube棱长的立方6棱长棱长Right Circular Cylinderr2h2r h(侧)+ 2r2(底)*Sphere4r3/34r2（三）常见单位换算1. 路程方面：1 yard（码）=3 feet（英尺）=36 inches（英寸） 1 mile（英里）=1760 yards=5280 feet meter米 decimeter分米 centimeter厘米 millimeter毫米2. 重量和容量方面：1 pound（磅）=16 ounces（盎司） 1 ounce（盎司）=28 grams（克） 1 gallon（加仑）=4 quarts（夸脱）=8 pints（品脱）=16 cups liter/litre升 milliliter毫升 1 liter=1000 milliliters cubic meter立方米 cubic decimeter立方分米 cubic centimeter立方厘米 1 cubic meter=1000 cubic decimeters=1000000 cubic centimeters 1 liter=1 cubic decimeter=1000 milliliters 1 milliliter=1 cubic millimeter3. 价格（货币）方面：penny便士，分 cent分 nickel镍币 dime角 dollar美元 5 nickels=1 quarter=25cents 2 dimes and 1 nickel=1 quarter 100 cents=1 dollar六、SSAT真题回顾1. If ab is negative, which of the following CANNOT be negative?A. b-aB. a-bC. abD. abE. ab2. In a certain set of numbers, the ratio of integers to nonintegers is 1:4. What percent of the numbers in the set are integers?A. 20%B. 25%C. 40%D. 75%E. 80%3. What is the smallest positive number that leaves a remainder of 2 when the number is divided by 3, 4, or 5?A. 42B. 82C. 22D. 62E. 1224. If a die is tossed twice，the probability of getting a 3 on both tosses is:A. 1/4B. 1/36C. 1/12D. 1/6E. 1/255. An instrument store gives a 10% discount to all students off the original cost of an instrument. During a back to school sale an additional 15% is taken off the discounted price. Julie, a student at the local high school, purchases a flute for $306. How much did it originally cost?A. $325B. $375C. $400D. $408E. $4256. If y(x-1)=z then x=A. y-zB. z/y + 1C. y(z-1)D. z(y-1)E. 1-zy7. Which of the following values is NOT equal to 34(58+9)?A. 3467B. 58(34+9)C. 34 58 + 34 9D. 1,972 + 306E. (9 + 58) 348. Two angles of a triangle measure 15 and 85 . What is the measure for the third angle?A. 50B. 55C. 60D. 80E. 909. If 5 ounces is equal to 140 grams, then 2 pounds of ground meat is equal to how many grams?A. 863B. 878C. 896D. 915E. 93210. Which year did the most children take swimming lessons?A. 1990B. 1991C. 1992D. 1994E. 199511. Between which year did the largest decrease in children taking swimming lessons occur? A. 1990-1991 B. 1991-1992 C. 1992-1993 D. 1993-1994 E. 1994-199512. What was the average number of children taking swim lessons from 1990 to 1995? A. 250 B. 308 C. 385 D. 450 E. 1,85013. Which of the following is equal to 5.93 10? A. 0.0593 B. 0.00593 C. 593 D. 5930 E. 5930014. On a Map, 1 inch represents 20 miles. The distance between 2 towns is 6.2 inches. How many miles are actually between the two towns? A. 65 miles B. 84 miles C. 124 miles D. 138 miles E. 145 miles15. How many cubed pieces of fudge that are 3 inches on an edge can be packed into a Christmas tin that is 9 inches deep by 12 inches wide by 8 inches high with the lid still being able to be closed? A. 18 B. 24 C. 32 D. 36 E. 4316. Sarah is twice as old as her youngest brother. If the difference between their ages is 15 years. How old is her youngest brother? A. 10 B. 15 C. 20 D. 25 E. 3017. Which of the following fractions is equal to 5/6? A. 20/30 B. 15/24 C. 25/30 D. 40/54 E. 2/718. In a writing competition, the first place winner receives of the prize money. The second runner up receives of what the winner won. What was the total amount of prize money distributed if the winner receives $6,000? A. $6,000 B. $8,500C. $12,000D. $15,000E. $18,50019. You are lying 120 feet away from a tree that is 50 feet tall. You look up at the top of the tree. Approximately how far is your hear from the top of the tree in a straight line?A. 50 feet B. 75 feet C. 120 feet D. 130 feet E. 150 feet20. A cyclist bikes x distance at 10 miles per hour and r