GRE数学拿满分需要注意哪些问题

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GRE数学拿满分需要注意哪些问题

篇1:GRE数学拿满分需要注意哪些问题

common factor 公因子

least common multiple 最小公倍数

composite numbe 合数

prime factor 质因子

prime number 质数

factor 因数

consecutive integer 连续的整数

set 集合

sequence 数列

tenths’ digit 十分位

tenth 十分位

units’ digit 个位

whole number 整数

GRE数学单位转化的细节

首先,如果考到不同度量衡之间的转换,题目往往会告诉我们转换的比例。比如说《GRE官方指南 – 第十二版》中第156页的第28题,题目中使用的单位是inches, 而在问题中使用的单位是kilometers,涉及到了不同度量衡之间的转换。

这道题目的末尾处就明确写出了 (1 kilometer is approximately 3.9×104 inches.) 所以对于这类转换大家无需担心,只需根据题目数据细心转换即可。

其次,要想GRE数量掌握单位转换相关题目,必须掌握的就是同一度量衡内单位的转换,比如说最常考到的就是hour – minute – second之间的转换,此时尤其要注意的就是1 hour = 60 minutes,而不是 = 100 minutes,经常有同学做题时一时大意就会转换错误。

另外一个常考的就是km – m – cm之间的转换,1km = 1,000m, 1m = 100cm,以及kg – g – mg之间的转换,1kg = 1,000g, 1g = 1,000mg。比如说2月份就考到了kg与mg之间的转换,题目告诉了我们一种东西1kg的价钱,让我们求这种东西600mg的价钱是多少。

此时我们就需要知道1kg = 1,000g = 1,000,000mg。另外由于GRE是美国考试,所以题目中时常也会遇到美制度量衡的单位,比如说英尺 (feet)和英寸 (inch),1 feet = 12 inches,1 feet2 = 12×12 inch2 = 144 inch2,这些转换都是我们需要知道的。

记笔记的习惯同样可以帮助我们解决GRE数学备考中单位转换的问题。同学们笔记中记到数字时,一定不要只记数字本身,还要把单位也给记下来,这样子立刻就会注意到题目前后单位的不同,做题时就不会因为粗心而忘记换算。

GRE数学重点知识:排列

排列(permutation):

从N个东东(有区别)中不重复(即取完后不再取)取出M个并作排列,共有几种方法

P(M,N)=N!/(N-M)!=N.…...N-M+1)

例如从1-5中取出3个数不重复,问能组成几个三位数

P(3,5)=5!/(5-3)!

=5!/2!

=5..../(2.)=5..=60

也可以这样想从五个数中取出三个放三个固定位置那姆第一个位置可以放五个数中任一一个,所以有5种可能选法..二.. 余下四个数中任一个,....4.....三... 3....

所以总共的排列为5..=60

同理可知如果可以重复选(即取完后可再取),总共的排列是5..=125

组合(combination):

从N个东东(可以无区别)中不重复(即取完后不再取)取出M个(不作排列,即不管取得次序先后),共有几种方法

C(M,N)=P(M,N)/P(M,M)=N!/(M-N)!/M!

C(3,5)=P(3,5)/P(3,3)=5!/2!/3!=5../(1..)=10

可以这样理解:组合与排列的区别就在于取出的M个作不作排列-即M的全排列P (M,M)=M!,

那末他们之间关系就有先做组合再作M的全排列就得到了排列所以C(M,N).(M,M)=P(M,N),由此可得组合公式

性质:C(M,N)=C( (N-M), N )

即C(3,5)=C( (5-2), 5 )=C(2,5) = 5!/3!/2!=10

对Quartile的说明:

Quartile(四分位数):

第0个Quartile实际为通常所说的最小值(MINimum)

第1个Quartile(En:1st Quartile)

第2个Quartile实际为通常所说的中分位数(中数、二分位分、中位数:Median)

第3个Quartile(En:3rd Quartile)

第4个Quartile实际为通常所说的最大值(MAXimum)

篇2:GRE数学拿满分需要注意哪些问题

大家除了对1st、3rd Quartile不了解外,对其他几个统计量的求法都是比较熟悉的了,而求1st、3rd是比较麻烦的,下面以求1rd为例: 设样本数为n(即共有n个数),可以按下列步骤求1st Quartile:

(1)将n个数从小到大排列,求(n-1)/4,设商为i,余数为j

(2)则可求得1st Quartile为:(第i+1个数).4-j)/4+(第i+2个数)./4 例(已经排过序啦!):

1.设序列为{5},只有一个样本则:(1-1)/4 商0,余数0

1st=第1个数./4+第2个数./4=5

2.设序列为{1,4},有两个样本则:(2-1)/4 商0,余数1

1st=第1个数./4+第2个数./4=1.75

3.设序列为{1,5,7},有三个样本则:(3-1)/4 商0,余数2

1st=第1个数./4+第2个数./4=3

4.设序列为{1,3,6,10},四个样本:(4-1)/4 商0,余数3

1st=第1个数./4+第2个数./4=2.5

5.其他类推!

因为3rd与1rd的位置对称,这是可以将序列从大到小排(即倒过来排),再用1rd的公式即可求得:

例(各序列同上各列,只是逆排):

1.序列{5},3rd=5

2.{4,1},3rd=4./4+1./4=3.25

3.{7,5,1},3rd=7./4+5./4=6

4.{10,6,3,1},3rd=10./4+6./4=74=64.{10,6,3,1},3rd=10./4+6./4=7

定理:

1. 正整数n有奇数个因子,则n为完全平方数

2. 因子个数求解公式:将整数n分解为质因子乘积形式,然后将每个质因子的幂分

别加一相乘.eg. 200=2.. .5. 因子个数=(3+1)(2+1)=12个

3.能被8整除的数后三位的和能被8整除;能被9整除的数各位数的和能被9整除.

4.多边形内角和=(n-2)x180

5.菱形面积=1/2 x 对角线乘积

6.欧拉公式(面体有几边): 边数=2(面数或顶点数-1)

GRE数学考试的基本要素

1、高中知识

各种三角诱导公式,和,差,倍,半公式与和差化积,积化和差公式,平面解析几何。

说明:Cracking the GRE Math Test里面第一章就是复习高中知识,我看内容基本差不多了,大家也就不用另外找书复习了。

2、数学分析

极限,连续的概念,单变量微积分(求导法则,积分法则,微商),多边量微积分及其应用,曲线及曲面积分,场论初步。

参考书:张筑生先生的3册《数学分析新讲》,Walter Rudin的Principles of Mathematical Analysis

说明:Cracking the GRE Math Test用了两章来复习数学分析,基本够了。我只是另外看了一些场论的公式以及Fourier分析的一点内容。不过sub中有一些数学分析方面的题目很灵活,要你判断一个命题是否正确,对于错误选项如果想不出反例来就有些麻烦了,大家要注意。

3、微分方程

基本概念,各种方程的基本解法。

参考书:Wolfgang Walter, Ordinary Differential Equations

说明:以Cracking the GRE Math Test中的相关章节为主,一般不难。

4、线性代数

普通代数,艾森斯坦因法则,行列式,向量空间,多变量方程组解法,特征多项式及特征向量,线形变换及正交变换,度量空间。

参考书:镇系之宝,张贤科老师的《高等代数学》,Seymour Lipschutz的Theory and Problems of Linear Algebra

说明:Cracking the GRE Math Test这本书里面的东西也差不多够了,不过鉴于sub越来越难,大家还是回去翻翻张老师的书吧。

5、初等数论

欧几里得算法,同余式的相关公式,欧拉-费马定理。

参考书:冯老师的《整数与多项式》

说明:以Cracking the GRE Math Test相关章节为主。

6、抽象代数

群论及环域的基本概念及运算法则。

参考书:冯老师的《近世代数引论》

说明:抽象代数的内容最近几年越来越多,今年考试中考到了极大理想。还好我在做REA的题目的时候碰到了高斯整环的题目,所以回去好好翻了翻书。大家要认真准备这一部分的内容。

7、离散数学

命题逻辑,图论初步(基本概念,表示法,邻接and关联距阵,基本运算定理如V+F-E=2),集合论(注意了解一下偏序的概念)。

参考书:J. A. Bondy and U.S.R. Murty,Graph theory with applications

说明:逻辑的题目比较简单,也就是命题逻辑的基本运算,最多再加上真值表,随便找一本离散数学的书看看基本概念就行了。集合论的题目也比较简单。不过由于系里面没有开图论的课,所以大家还是好好看书,Bondy这本书看看第一章就行了。

8、数值分析

高斯迭代法,插值法等基本运算法则。

参考书:李庆扬等的《数值计算原理》

说明:内容很少,我考试的时候没见过。

9、实变函数

可数性概念,可测,可积的概念,度量空间,内积等概念。

说明:以Cracking the GRE Math Test相关章节为主。

10、拓扑学

邻域系,可数性公理,紧集的概念,基本拓扑性质。

参考书:J. R. Munkres, Topol.y

说明:重点,近几年的分量越来越大。以Cracking the GRE Math Test相关章节为主,不过据说考过foundamental group,大家还是好好看看书。

11、复变函数

基本概念,解析性(共厄调和的概念),柯西积分定理,Taylor&Laurent展式(重点),保角变换(非重点),留数定理(重点)

参考书:方企勤先生的《复变函数教程》,Lars V. Ahlfors的Complex Analysis

说明:学过复变就行了,一定要记住基本公式。

12、概率论与统计

古典概型,单变量概率分布模型,二项式分布的正态近似

参考书:李贤平的《概率论基础》

说明:以Cracking the GRE Math Test中相关章节为主,一般来说很简单。不过由于2字班没有学过古典概型(托文sir的福),所以还是把李贤平的这本书好好看了看。统计方面不用担心,不会有难题,所以不用专门找书看。

GRE数学拿满分需要注意哪些问题

篇3:GRE数学拿满分需要注意哪些问题

GRE数学拿满分需要注意哪些问题?这10个易错陷阱别忽视

GRE数学常见陷阱

1、度量单位不一样,每个数字指代的对象有差别。

2、长题绕弯,注意前后阅读。

3、题目经常有隐含条件:如integer,consecutive,总之,所寄予的每一个条件都是与解答问题相关的,任何一个条件都有存在的意图。

4、有没有过于自信,想当然认为某条件。

GRE数学高分关注要点

1、我看清了问题问得是什么了?

2、单位有没有变化?

3、有没有用到所有的原题文字了?

4、运算中,我有没有少掉了细微的步骤?

GRE数学满分最高原则

1、做错一定是没有考虑周到。

2、看起来无关的条件和选项,其实有关。

3、注意ETS千方百计在考你,它们老奸巨猾。

GRE数学考试的专业术语

倒数(reciprocal) x的倒数为1/x

THE THIRD POWER是三次方的意思

2^5=the fifth power of 2

abscissa 横坐标

ordinate 纵坐标

quadrant 象限

coordinate 坐标

slope 斜率

intercede 截距(有正负之分)

solution (方程的)解

arithmetic pr.ression 等差数列(等差级数)

an=an+(n-1)d s=1/2(a1+an)

common divisor 公约数

篇4:gre考试需要注意什么呢

gre考试需要注意什么呢?

何时可以收到gre考试分数通知?

成绩通知约在考後6-8周由ETS寄出(目前国内由专门考试中心负责,成绩两个月后可取)。

报名GRE时,在电脑报名表上第12栏的收受单位中,每位考生可以免费要求ETS将测验成绩通知寄往指定的四所学校或机构,ETS考後6-8周,会将考生成绩的正本(OfficialSc oreReports )的第一份在直接寄到考生指定的四所学校或机构,另一份寄至所申请的科系。

如何变更或取消GRE考试报名?

gre考试考生在报名时,可以在电脑报名表上指定四所收受学校,也可以在报名後利用gre考试准考证上的考生资料更正联(GRECorrect ionStub)更改寄送学校,但该更正联必须在考试前一天寄达ETS或於当日考试结束後立即送至考场办公室,逾期恕不受理。

考後如何办理GRE考试成绩加发?

考生收到成绩单後,如还想再请ETS寄成绩正本给其他学校,则必须付申请费,每所学校或机构以相应的费用来收费。可利用GRE英文资料手册中间夹页的“成绩加发申请表”,申请表可重覆影印使用。

如何加发一份GRE考试分数的成绩单给考生本人?

考生若成绩单遗失,可按照成绩加发方式申请,在成绩加发申请寄至ETS。ETS收到成绩加发申请表後,会在十个工作天内以平邮方式直接寄出成绩单给考生。

地址变更如何处理?

报名後您的地址如有变动,务必要更正您在ETS的个人资料,更正方式如下:可利用准考证上的考生资料更正联(GRECorrect ionStub)直接寄至ETS,必须让ETS在考试日前一天收到。在考试当日於考後直接将考生资料更正联交至考场办公室。去信向ETS说明新旧地址,并要求变更,否则档案上仍是旧的地址。

gre考试写作水平提升方法介绍

大家都知道,新GRE考试是计算机考试,我们都需要非常清楚,笔试则大不相同。考试分为语文和数学两部分。数学是初中的难点。中文很难。它可以分为空白填充和阅读。在难度方面,词汇是基础,0是需要的。多练习阅读。GRE写作主要注重逻辑推理和分析性写作两项技能,并将加大力度引入要求考生有针对性地回答的实践题,减少考生依赖事先准备好的材料(如背诵)的可能性。

找到gre考试写作的关键,你就能得到高分

众所周知,GRE的写作成绩并不容易获得。许多考生会因为一些原因而失分,例如语法问题或不恰当的例子。

1)词汇。许多人问他们是否需要在写作前记住词汇书。据我们所知,词汇书是为笔试的汉语部分而收集整理的,与作文没有多大关系。gre写作方法,gre写作怎么练作文所需的高级水平仍然是这些。当一台机器或一个考官看到它时,他会把它锁起来,知道如何写议论文,他会依靠它们。此外,一些常用动词和名词的同义词应分成若干组记忆。英语修辞不是华丽的,而是多变的。句型应该是可变的,表达相同意思的词也应该是可变的。原来英语单调,重复是禁忌。

2)模板。如何使用模板不是使用模板,而是合理使用模板。因为初学者一眼就直奔主题是件好事。什么是结构?模板是结构。模板是骨架,支撑,但不是灵魂。当然,灵魂部分是文章的主要目的,靠自己不懈的写作,不断的研究去探索和发现。不要依赖模板。没有灵魂的骷髅得不到高分。

最全面的GRE写作复习计划

注意新的GRE作文练习,如何准备Arg练习?每个GRE考试题目都要看一看,找出逻辑错误,提取关键词或信号词。按照传统的分类模式,问题习题的编写可分为社会、技术、行为、教育、历史、媒体、艺术、国际等大类。但是,在以后的审查中,这样的分类并不能满足高效审查的需要。因此,在开始准备问题练习时,需要对练习进行分类。找出每个大类之间的水平关系。例如,科学技术在教育、社会、行为和历史中的应用和影响。这样,每个GRE考试题目的核心点就会更清晰,方向也会写得更多。梳理练习时间为7-10天,还有很多任务要完成。

新GRE作文常见弊病及解决方案

写作速度慢,内容不饱满

在新GRE作文中的另一个普遍问题是写作速度太慢,这显然是因为在考试前所作的准备不够充分。GRE考试的写作除了开头段和结尾段,中间一般应该写三段。但是考生在规定时间内往往只能写两段,而且字数也不够,只能写400字左右。GRE写作虽然没有字数要求,gre写作方法,gre写作怎么练但是一篇较好的、成熟的,能够充分展示自己观点的GRE作文,一般应在600字左右,或者是600字以上。由此可见,一篇400字左右的文章在内容上是不够充实的。

论证不够吸引人

在阐述思想观点之后,缺乏有力的例证去支持所阐述观点。或者总是引用每个人都耳熟能详的例证,例如目前最流行的例证有两个B和两个E,两个B即Bill Gates和Bill Clinton。两个E即Einstein和Edison.并不是这些例证不恰当或不足以说明问题,而是如果每一位GRE考试的考生都把爱迪生发明电灯作为例证,都引用爱因斯坦所说的成功是百分之九十九的勤劳加上百分之一的天分,那么自己的文章就显得平庸乏味,不吸引人。同时,也说明考生的知识面狭窄,视野不开阔

五个GRE写作考试高分技巧

1.GRE考试积极改写GRE作文: 必须多修改,如果不勤修改自己的文章,就不知道自己原来的漏洞和不足在哪,闷头写,只能导致lose the stake! 当认真学习一段时间写作之后,再回头改第一篇习作,肯定会发现自己很多毛病,这说明:我们在进步!

2.从别人的GRE作文上吸取经验:必须学习别人的文章,不管是老外280,还是版主们组织的同主题习作,都是非常宝贵的学习,参考资料,看到别人的文章和写作思路,是提高自己水平的有效途径!小站教育建议大家看看版主们原来写的习作和互拍,真的会受益匪浅。例如:among,needle,pooh,鬼谷子等牛人的,不一一列举了。

3.GRE考试多思考多动脑:必须多思考,多写不如多改,多改不如多想,当然这种想不是fantasy and daydream.二是针对写作思路和自我总结!

研究GRE考试作文范文:必须研究范文,尤其是5分和6分的范文,他们真的非常重要,因为那是最权威的辅导资料!不是简单的熟读和背诵,而是逐字逐句的体会作者的意思及修辞。还有提醒一点,对范文的评论也都非常精彩,建议大家参考!这会非常有利于理解考试所考的重点。

复习GRE写作考试必备攻略

写作练习要趁早

对于任何的考试都是一样,练习不仅要趁早,还需要在练习的时候加强对写作模式的总结。有很多人都以为刚开始写好一点花多长时间都值得其实到后来发现根本不是这样,限时和不限时两种感觉完全不同。限时之后就会发现,GRE考试没有固定的套路在三十分钟内基本不可能完整的写出一篇从没见过的argument.这里的套路不是大家都熟知的在网上和书上流行的摸版。而是自己总结出来的一套写作模式,更重要的是思维模式。

小站教育老师建议:不推崇使用模版,因为每个人要有自己的写作套路,别人的模版尽量不要直接拿来用,毕竟那些还是别人的东西,最好自己能弄出来自己的风格来。而写作套路,就是仁者见仁,智者见智的事情了,练习作多了,提纲列多了,基本就出来了。

多加写作练习

对于GRE写作来说,想要得到高分就必须要勤加练习,通过练习我们能够得出自身的不足点,也能发现自己的写作优势。所以,在复习GRE写作的时候,一定要多加练习。

GRE作文从读懂题目指令做起

Issue有六种题目指令:

指令1:

Write a response in which you discuss the extent to which you agree or disagree with the statement and explain your reasoning for the position you take. In developing and supporting your position, you should consider waysin which the statement might or might not hold true and explain how these considerations shape your position.

指令2:

Write a response in which you discuss the extent to which you agree or disagree with the recommendation and explain your reasoning for the position you take. In developing and supporting your position, describespecific circumstances in which adopting the recommendation would or would not be advantageous and explain how these examples shape your position.

指令3:

Write a response in which you discuss the extent to which you agree or disagree with the claim. In developing and supporting your position, be sure to address the most compelling reasons or examples that could be used tochallenge your position.

指令4:

Write a response in which you discuss which view more closely aligns with your own position and explain your reasoning for the position you take. In developing and supporting your position, you should address both of the views presented above.

指令5:

Write a response in which you discuss the extent to which you agree or disagree with the claim AND the reason on which that claim is based.

指令6:

Write a response in which you discuss your views on the policy above and explain your reasoning for the position you take. In developing and supporting your position, you should consider the possible consequences of implementing the policy and explain how these consequences shape your position.

这六种GRE作文题目指令侧重各有不同,但相通之处为:要求考生考虑到不同角度,不同情况,不同条件,抑或是不同的结果,不同的立场。在观点立场上不是一刀切式的支持或反对,而是调和性的占比,即对一个话题的观点可以是完全同意/反对,部分同意/反对, 观点是内容正负占比的外在呈现。

Argument题目指令有八种:

1.Write a response in which you discuss what specific evidence is needed to evaluate the argument and explain how the evidence would weaken or strengthen the argument.

2.Write a response in which you examine the stated and/or unstated assumptions of the argument. Be sure to explain how the argument depends on these assumptions, and what the implications are for the argument if the assumptions prove unwarranted.

3.Write a response in which you discuss what questions would need to be answered in order to decide whether the recommendation and the argument on which it is based are reasonable. Be sure to explain how the answers to these questions would help to evaluate the recommendation.

4.Write a response in which you discuss what questions would need to be answered in order to decide whether the advice and the argument on which it is based are reasonable. Be sure to explain how the answers to these questions would help to evaluate the advice.

5.Write a response in which you discuss what questions would need to be answered in order to decide whether the recommendation is likely to have the predicted result. Be sure to explain how the answers to these questions would help to evaluate the recommendation.

6.Write a response in which you discuss what questions would need to be answered in order to decide whether the prediction and the argument on which it is based are reasonable. Be sure to explain how the answers to these questions would help to evaluate the prediction.

7.Write a response in which you discuss what questions would need to be addressed in order to decide whether the conclusion and the argument on which it is based are reasonable. Be sure to explain how the answers to the questions would help to evaluate the conclusion.

8.Write a response in which you discuss one or more alternative explanations that could rival the proposed explanation and explain how your explanation(s) can plausibly account for the facts presented in the argument.

这8种GRE写作题目指令,实则可以归为4大类(evidence类、assumption类、question类、explanation类)。但不论是哪一类,实则都包含了加强或削弱已有论证。论证的加强与否取决于:论据evidence的有无,假设assumption得以证实与否,所提问题答案的肯定与否,其它解释存在与否。因此,Argument并非一边倒式的批评,而是公平客观的正负评价,加强削弱皆可。

篇5:GRE填空高效备考需要注意哪些问题

GRE填空高效备考需要注意哪些问题?这4条提分学习建议值得参考

新GRE填空题解题建议

1. 单词背诵不能放松

尽管在之前的考试改革中,填空题部分取消了类比反义词,但这并不代表参加GRE考试就不需要很大的词汇量,恰恰相反,现在ETS在填空部分对词汇提出了更高更精确的要求。因此,背单词仍然是参加考试的首要任务。

2. 加大阅读训练质与量

由于新GRE更多的考察大家对于单词的用法和精确含义的掌握,同时在填空中加深了对阅读理解能力的考查。因此,大量的阅读训练必不可少。

3. 适当延长备考周期

相比词汇记忆,阅读理解能力的提高需要话费的时间和精力都更多,在单纯的词汇记忆对分数提高已经没有那么明显的情况下,建议各位考生根据自己的实际英语水平和复习情况适当延长备考时间,给自己更多的学习和准备时间。

4. 抛掉侥幸心理,保持放松心态

虽然新GRE考试的填空题部分依旧只有客观题,但是现在猜对选项的概率相比之前已经大大下降了,所以大家最好还是不要存有侥幸心理,脚踏实地的认真备战。依靠自己的真实实实力应对新GRE考试。

新GRE填空题解题方法和流程

1. 判断题目究竟是哪种类型,例如有因果型、对比型、平行型、补述说明型和分号型。

2. 找出答案关键字。遇到有主要子句和附属子句的多复合句,如果空格在主要子句,那么答题的关键字一定是在附属子句中。

3. 填空题有时是一个空格,有时是两个空格。如果是两个空格,则选题时先做由关键字决定的那一个格。

4. 由题型和题意,判定空格内的字应该具有正面还是负面意思。

5. 根据关键字,采用排除法剔除一切不可能的选项。

6. 如果时间允许,将你选择的答案代入空格,再重读一次。

新GRE填空题介绍

填空题通常出现在词汇部分(Verbal Section)的最前面,一共七题。填空题考的是对英文句子整体性的了解。考生不但要懂得串联上下文和辨识文法结构,还要具备丰富的词汇量,大多数考生一般是把答案带入空格去做拼图游戏,这样既浪费时间又无效果。

新GRE填空题与托福填空题的区别

GRE的填空题与托福语法里的填空题截然不同。托福里的句子填空题测试的纯粹是语法,简单地说,就是句法,所以托福的填空题才有句法的别称。

GRE填空500题词汇精选真题详解

题目

The description of humans as having an internal clock is not a (i)___ . Or rather, it is – you do not have a tiny watch in your cerebellum – but it also refer to (ii)___ , a specialized bundle of cells that regulates cyclical processes.

Blank (i) Blank (ii)

A. euphemism D. an elusive psychological phenomenon

B. cliché E. a standard literary

C. metaphor F. a real biological feature

正确答案

CF

题目解析

原句翻译:人体内有计时器的说法并不是比喻。更确切地说 —— 你小脑中没有一块小表 —— 但它仍然指涉一种确实的生物特征,大量特化的调节周期性过程的细胞。

词汇含义

euphemism 委婉的说法

cliche 陈词滥调

metaphor 隐喻,象征

or rather (used to introduce a more precise expression 用以提出更确切的说法)更准确地说,更具体地说

cerebellum 小脑

elusive 躲避的,难以定义或描述的,难以捉摸的

bundle 许多,大量

regulate 调节,管理,使保持规律

cyclical 循环的,周期性重复的

GRE填空500题词汇精选真题详解

题目

The province has long claimed to be just another developing region, even as its economy ___ those of other regions and threatens to eclipse the rest of the country combined.

A. parallels

B. bolsters

C. corroborates

D. outstrips

E. engages

正确答案

D

题目解析

原句翻译:这个省一直以来被称为另一个欠发达地区,恰逢它的经济超过其他地区,甚至威胁到该国其他地区的经济总和。

词汇含义

本题关键在于理解 developing,发展中的,欠发达的,发达的叫 developed 。本题没有明显的指示词,但属于让步关系,不妨理解为(即使)它的经济已经超过了其他地区的总和,(但)它一直以来仍然被称为欠发达地区。有时讲民族复兴和平崛起,有时讲仍是发展中国家,主要看开的是什么会。

even as (复合连词)恰逢,just at the same time when

developing 发展中的(意味着发展水平较低),欠发达的

parallel 使平行,与 …平行,与 … 类似,与 … 匹敌,比较,比拟

bolster 支持,鼓励

corroborate (以证据)证实(某种说法、信仰、理论等),(以新证据)进一步证实

outstrip 超过,超越

engage 预订,预约,订婚,参与,占用,与 … 冲突,吸引

eclipse 使 … 的光消失,(天体等因被遮蔽)产生蚀,使 … 相形见绌、黯然失色,把 … 比下去

GRE填空500题词汇精选真题详解

题目

At first, most of the famous fairy tales seem so implausible and so irrelevant to contemporary life that their ___ is hard to understand.

A. universality

B. persistence

C. appeal

D. ephemerality

E. survival

F. transience

正确答案

BE

题目解析

原句翻译:最初,多数著名童话都显得如此不合逻辑,也与当代生活无关,以至于人们很难理解它们靠什么流传下来。

词汇含义

so ... that ... 引导的因果关系

fairy tale 童话

implausible 似乎不合情理的,不像真实的,难以说服人的

contemporary 同时代的,年龄大致相仿的,当前的,现代的

universality 全体,共同

persistence 坚持不懈,执意,持续,存留,继续存在

appeal 呼吁,上诉,恳求,吸引力,感染力

ephemerality 短命,短暂

transience 稍纵即逝

GRE填空500题词汇精选真题详解

题目

Wilson is wont to emphasize the ___ of ants, how ants with full stomachs will regurgitate liquid food for those without, or how the old will fight so the young can survive.

A. beneficence

B. altruism

C. unpredictability

D. intelligence

E. fecundity

F. fertility

正确答案

AB

题目解析

原句翻译:W 历来强调蚂蚁的慷慨与利他,吃饱的如何反刍流食以喂养饿的,或年长者如何为了换取年幼者的生存机会而战斗

词汇含义

wont 惯常的,一贯的,可能的

beneficence 慷慨行为,捐助(物),慈善

altruism 利他主义,无私

intelligence 才智,脑力,信息,情报

fecundity 多产,丰饶,繁殖力,创造力

fertility 肥沃(的程度或状态),人口出生率

篇6:备考GRE写作需要注意的问题

备考GRE写作需要注意的问题

【从形式上讲】

逻辑写作考试包括两个不同的部分:

1.Issue task(30min),要求作者根据所给题目,完成一篇表明立场的逻辑立论文。

2.Argument task(30min),要求考生分析所给题目,完成一篇驳论文,指出并且有力的驳斥题目中的主要逻辑错误。

【从特点上讲】

1. GRE写作考试有题库:

为了达到公平,ETS公布了它考试的所有写作题库,那么为了达到能和native speaker一起竞争,考生应该在考前对所有题目都进行预习(节约考试时的审题时间),并通过100-150个提纲的写作了解GRE写作的一般结构,通过30-50篇写作来练习自己的写作思路和表达。对题库中的题目越熟练,对考试越有利。

2. GRE写作考试的评阅是计件工作制的:

每个评卷人对你文章的评阅非常快,不可能对每个细节都很仔细地去看。考生应该迎合评卷人的评卷思路,用最规范的结构和最清晰的表达来体现自己的思路:首段要鲜明地提出观点,中间段落层次要拉开,每段的开始应该就是该段的topic sentence.

3. GRE写作的评分是整体评分(holistic scoring):

首先,从ETS公布的各分数段评分标准看,其评分主要注重以下三个方面:①、逻辑分析能力(要求insightful);②、文章的组织(要求well-organized);③、语言能力(要求standard written English; concise; varied structure等)。

但是ETS也强调,评分是整体的,而不是各个角度分别评分。这就说明,虽然中国考生的语言能力偏弱,但是只要能在其他两个角度上给评卷人非常 impressive的感觉,一样可以拿到6分。因此,在短期内尽力提高语言能力的同时(语言能力的培养不是一天两天可以完成的),我们在复习时应该尽可能地对题目进行深入的分析,学习高分作文的文章结构,通过这两个方面的突破来迅速提高作文整体的分数。

4. GRE写作两个部分在总分中的权重是一样的:

由于AA的写作不牵涉自己观点的展开,只须指出作者逻辑上的漏洞,因此在经过训练以后,写起来并不困难;而AI的写作需要自己展开自己设立的观点,不但需要逻辑上的洞察能力,还需要论证观点的能力,语言组织的能力,因此对于中国考生来讲比较困难,难以短期内有较大提高。但是这两个部分在总分中的权重是一样的,因此考生的策略应该是尽量提高AI部分的写作能力而力保AA部分满分(或高分)。因为如果AA部分满分的话,AI部分只需争取在4分以上就可以保证整体作文分数在5分以上。

通过对以上关于对新GRE写作备考信息的解读,希望各位考生消除惧怕心理,有十足的信心,相信通过认真的备考,同学们会取得非常满意的成绩。

GRE issue写作优秀实例:达到目标的手段

题目:

If a goal is worthy, then any means taken to attain it are justifiable.

只要值得,不择手段达到目的是合理的。

正文:

The speaker claim that if a goal if worthwhile, then any means taken to achieve this goal is justifiable. Although the assertion makes sense when we consider the underlying of this implication is that whatever the conditions, the natures of the endings deserve our effort wholehearted. But if we examine the broad meaning that this claim carries, we find this threshold statement suffer deficiencies from many aspects of consideration.

First let define the worthiness of a goal. How worthwhile and valuable a goal is lies not only in the subjective meditation and evaluation of an individual, we must consider the interactive influence exerted by this goal on others. For example, a country may consider the goal of achieving economic success and well being of its citizens to be worthwhile, but if we know they exploit cheap labor forces in third-world country,utilize scarce natural resources that being exported from poor countries, or dump low-cost goods in these countries, our morals reveal us the dark side of the goal and make it less worthwhile than it seems to be to its home people. On a personal level, a person’s food might be the others’ poison, so did the goal. Consider the ambition of

Napoleon, his ambitious goal is to conquer the whole European Continent, which considered by himself and many of his follows to be the most glorious plan they have ever made. But by resorting to wars, killings, and blood shedding, their sweet dream turn out to be the nightmare of people habituating in this continent. In a word, since no goal is set from a pure disinterested, impartial perspective, it is necessary to bear the interwoven relationship in mind before targeting at a certain goal. Even if a goal is worthwhile agreed by majority of people, we should consider cost-and-benefit side of things in an effort to obtaining an nonbiased, all-around point of view. Most people today agree that the exploration of outer space is a worthy goal considering the valuable research materials we would get from for our physics and medial experiment and weather forecast. What is more, due to the limit longevity of earth and the ever increasing of populations, we see high calls to find another habitat for our future generations. Even if all the advantages and benefits involved justify the worthiness of this goal, not all means taken would be considered as sensible and judicial. Since most pressing social problem such as AIDS prevention, poverty,environmental problems still in need of immediate attention and observation, we need to allocate most of our resources to tackle these problems. As a result, even if one way of achieving the breakthrough in out space exploration would be to devote all research staff and available resource to this project, we have to struggle a balance between the worthiness of a goal and the proper way to obtain this goal.

The above statement is welcomed and readily embraced by the new trend of practicality since in a society where personal achievement is highly valued, we look more to ending than means. That is to say, people tend to neglect and forgive their own wrongdoings or others’ wrongdoings in a sense that their goals are goodwill–intending and worthwhile. For one thing, for a personal, a society, or even a nation,even they consider things from a totally isolated or functional perspective, no matter how great achievement they obtain, they are selfish losers with nothing to be accomplished from the physiological point of view. In the second place, we observe too many cases where good intention result in total chaos derive not from the dirty tricks they construe but out of the improper means they take. Since the founding of

People’s Republic of China, under the leadership of Chairman Mao, China has undergone a reform in the area of economy, which is to implement planned economy. Mao’s intention is good, and his goal is to realize communalisms in this new country to short its economic gap with the western country in the shortest as possible. But without considering the properness of this means from the economic and social point of view, he threw china into years of economic regression and stillness. Ideas went contrary to our wills and intentions occasionally and thus make the consideration and full analyzes of the means to obtaining goals even pressing.

To sum up, I am against the speaker’s assertion since he neglects one important aspect of how to evaluate goals. To devote to a worth goal is justifiable and the effort instilled in this process deserve our accolade since it is always this power that push the society forward. But by neglecting the means of how to obtain these goals, we put ourselves in an embarrassing place of functionalists and opportunists. As a result, it is highly resulted to look from different perspectives to figure our where the true value of a goal lies and how to achieve it.

GRE 写作优秀实例:孩子整体和局部的发展

题目:

Society should identify those children who have special talents and abilities and begin training them at an early age so that they can eventually excel in their areas of ability. Otherwise, these talents are likely to remain undeveloped.

社会应该发现那些具有特殊天赋和能力的孩子,并且在年幼的时候就开始训练他们以便于这些孩子最终可以在他们擅长的领域中出类拔萃。否则这些天才就可能会止步不前。

正文:

I strongly agree with the author on the claim that gifted children should be identified and provided special education. Since such training can help better develop talented individual and greatly benefit the whole society, it is necessary to put this proposal into reality as soon as possible.

Both theoretical studies and experimental practices have indicated that gifted children would better develop themselves under circumstances specially designed for them.Starting with the observation of extraordinary children, teachers from kindergartens and elementary schools have long been reporting their being obsessed with certain “troublesome” kids by their unique behavioral patterns. For example, while the whole class is learning basic arithmetic such as twelve plus thirteen is twenty-five, a math whiz, exercising multiplication on 4-digit numbers without awareness of what's going on in the classroom, may always draw the teacher's attention. So it is very often a headache for the teachers in that to punish this committed kid for not being attentive is so unreasonable. Actually letting him/her to stay in this class is an unreasonable thing itself since what is taught is far behind what is wanted. Hence the solution is to set up a special class or institution for all kids of this kind. I came to know one of these classes in China which mainly aims at academically promising stars. Some thirty talented children of ten years old from elementary schools are enrolled every two years and they will be sent to universities in various majors at the age of fourteen,since they are capable of learning much more and much faster. That is to say ------take the chemistry major as an example ------ some of them will be doing experiments in university chemistry curriculum with ease while others of the same age find it painful to understand the composition of water. It makes a great difference once their potentials are fully developed. Therefore one can see the necessity in providing the talented such institutions as the genuine nourishment they need.

Moreover, these specialized institutions are capable of preventing some unpleasant consequences. Needless to say without these institutions we will miss the chance to produce numerous experts on various fields, or at least their debuts have to be postponed. More importantly, the unbalanced development, that is indulgence in their field of interest and disregard on others, is a commonplace among gifted children. A young math whiz may find it hard to ask for direction when lost his/her way since he/she is poor at communication. Or a young poet with personality flaws frequently complains for his/her absurd demands not being fulfilled. This problem is particularly conspicuous in that they are unexpectedly superior in one field yet unbearably inferior in another. In this case, gifted children's class can better afford solutions than ordinary ones as their experts on psychology can put more emphasis on these points, while ordinary school teachers tend to overlook such problems. In these classes it is far more convenient to make distinct therapy for individual on his/her own drawbacks, and produce genius with personality well-being and other necessary living skills. Thus the specialized institutions yield experts but not maniacs, which is a very satisfying outcome.

Last but not the least, establishment of these institutions is beneficial to the society.These kids with special training will generally work at an early age, and therefore produce more wealth for the society. Teenage university graduates can best support this thesis. The society spend less on their education yet gets back more once they get a job. Also it has been found out that people are usually more creative in their youth,as we recall those prominent figures like Goethe, or Mozart, or Einstein. On the behalf of the society it is advantageous for the talented spend his/her youth on research than on education. Therefore we can expect more inventions from them, be they scientific theory or painting masterpiece. Eventually we see how wise it is to invest in the special training programs.

In conclusion, I believe identification and special education for gifted children is necessary for the society. These projects should be carried out without hesitation, and the society will find it a strikingly wise decision as the talented make contributions in all aspects of life.

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GRE数学备考需要做哪些准备

GRE数学拿满分需要注意哪些问题
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