微臣gre325班gre數(shù)學7.14線上講座

1、GRE數(shù)學講座微臣教育 Weichen Education帥 旗2014.07.142011年GRE考試全面實行改革，其中GRE數(shù)學部分，即Quantitative也進行了相應修改。總體上講GRE數(shù)學部分難度有所提高。但是在Quantitative中考試所要求的能力和以前考試一樣。 在ETS所出的Official Guide（一下簡稱OG）中，明確的寫到新GRE在Quantitative部分的考察學生內容為： 基本數(shù)學技能 基本數(shù)學概念的理解 定量推理、建模以及利用數(shù)學方法解決問題的能力 GRE Quantitative 考察內容1. 精通算術運算2. 精通代數(shù)方程的求解3. 具有將文字信息轉

2、換為數(shù)學術語的能力4. 具有構想幾個圖像以及數(shù)之間關系的能力5. 具有用直覺和非常規(guī)的方法去解決一般數(shù)學問題的能力6. 具有在真實生活場景中運用數(shù)學的能力GRE Quantitative考試目的GRE數(shù)學的出題總體基本假設 All numbers used are real numbers. 所有的數(shù)都是實數(shù)All figures lie on a plane unless otherwise indicated. 除非題目中有專門指出，假設所有圖形都在同一平面內All angle measures are positive 所有的測量角度都是正數(shù)All line shown as strai

3、ght are straight. On the computer-based test, lines that appear “jagged” can also be assumed to be straight. 所有顯示為直線的線都可以當作直線來處理Figures are intended to provide useful information for answering the questions. However, except where a figure is plish by a “Note” stating that the figure is drawn to scal

4、e, solve the problem using your knowledge of mathematics, not by visual measurement or estimation. 伴隨問題的圖形將為解題提供有用的信息。但是，只有在問題中指出相應圖形是按比例畫出 drawn to scale）時，才可以用目測或者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。GRE Quantitative 復習注意事項一、全面復習考點- 最大公約數(shù)，最小公倍數(shù)1. Let S be the set of all positive integers n such n2 is a m

5、ultiple of both 24 and 108. Which of the following integers are divisors of every integer n in S?Indicate all such integers.A 12B 24C 36D 72GRE Quantitative 復習注意事項一、全面復習考點-關于比例2. At Megalomania Industries, factory workers were paid $20 per hour in 1990 and $10 per hour in 2000. The CEO of Megalomani

6、a Industries was paid $5 million per year in 1990 and $50 million per year in 2000. The percent increase in the pay of Megalomanias CEO from 1990 to 2000 was what percent greater than the percent decrease in the hourly pay of Megalomanias factory workers over the same period? (A) 850%(B) 900%(C) 950

7、%(D) 1700%(E) 1900%GRE Quantitative 復習注意事項二、熟悉數(shù)學詞匯以及在英語中數(shù)學語言的表達習慣6. Each employee of a certain company is in either Department X or Department Y, and there are more than twice as many employees in Department X as in Department Y. The average (arithmetic mean) salary is $25,000 for the employees in D

8、epartment X and $35,000 for the employees in Department Y. Which of the following amounts could be the average salary for all of the employees of the company?Indicate all such amounts.A $26,000B $28,000C $29,000D $30,000E $31,000F $32,000G $34,000GRE Quantitative 復習注意事項二、熟悉數(shù)學詞匯以及在英語中數(shù)學語言的表達習慣7. A re

9、ctangular rug covers half of a rectangular floor that is 9 feet wide and 12 feet long. If the dimensions of the rug are in the same ratio as those of the floor, how many feet long is the rug?15. If n is a positive integer, what is the remainder when 38n+3+2 is divided by 5?A 0B 1C 2D 3E 4第一章 GRE Quantitative概述三、熟悉做題的技巧-學會分析數(shù)據(jù)結構，不是暴力解題16. If p and r are prime numbers, which of the following must also be prime?A prB p+rC pr+1D p2+r2E None of the above第一章 GRE Quantitative概述三、熟悉做題的技巧-學會使用特殊值法1、 英文理解能力不夠好 There is twice as much A as B Eight less than 3 times y Decrease to/ Decreas