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英语数学
英语】小升初英文奥数题系列3
发布:
2009-12-3114:
36|作者:
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前两期英文奥数推出之后,家长和同学们都反映非常好,说受益匪浅,甚至有的学校还考到了原题。
因此现在我们推出系列三。
1、Anantcoversadistanceof90metresin3hours.Theaveragespeedoftheantindecimetresperminuteis____.
2、
3、Inacertaintownsomepeoplewereaffectedbya’flu’epidemic.Inthefirstmonth20%ofthepopulationcontractedthefluwhilst80%werehealthy.
Inthefollowingmonth20%ofthesickpeoplerecoveredand20%ofthehealthypeoplecontractedthedisease.
Whatfractionofthepopulationishealthyattheendofthesecondmonth?
4、Mpho,Barry,Sipho,EricaandFatimaaresittingonaparkbench.
Mphoisnotsittingonthefarright.Barryisnotsittingonthefarleft.
Siphoisnotsittingateitherend.EricaissittingtotherightofBarry,
butnotnecessarilynexttohim.FatimaisnotsittingnexttoSipho.
SiphoisnotsittingnexttoBarry.
Whoissittingatthefarright?
5、Ofthe28T?
shirtsinadrawer,sixarered,fiveareblue,andtherestare
white.IfBobselectsT?
shirtsatrandomwhilstpackingforaholiday,whatistheleastnumberhemustremovefromthedrawertobesurethathehasthreeT?
shirtsofthesamecolour?
6、Inanalienlanguage,jalezborgfarnmeans“goodmathsskills”.Nurfklarborgmeans“mathsinharmony”anddarkoklarfarnmeans“goodingold”.
Whatis“harmonygold”inthislanguage?
7、Fivechildren,Amelia,Bongani,Charles,DevineandEdwina,wereinthe
classroomwhenoneofthembrokeawindow.Theteacheraskedeachofthemtomakeastatementabouttheevent,knowingthatthreeofthemalwayslieandtwoalwaystellthetruth.Theirstatementswereasfollows:
Amelia:
“Charlesdidnotbreakit,nordidDevine.”
Bongani:
“Ididn’tbreakit,nordidDevine.”
Charles:
“Ididn’tbreakit,butEdwinadid.”
Devine:
“AmeliaorEdwinabrokeit.”
Edwina:
“Charlesbrokeit.”
Whobrokethewindow?
8、Didyouknow?
Apalindromeisanumberwhichreadsthesameforwardsasbackwardse.g.35453.Nextyear2002isanexampleofapalindromicnumber.Whatisthedifferencebetween2002andthenumberofthepreviouspalindromicyear?
9、Ifa⊕b=(2×a)(3×b)thenthevalueof2⊕(3⊕5)is____.
10、TwoantsstartatpointAandwalkatthesamepace.Oneantwalksarounda3cmby3cmsquarewhilsttheotherwalksarounda6cmby3cm
rectangle.Whatistheminimumdistance,incentimetres,anyonemust
coverbeforetheymeetagain?
参考答案:
1、单位换算,注意单词,90×10÷(3×60)=5
2、46
3、0.68
4、Erica
5、抽屉原则7
6、注意一一对应,borg=maths,farn=good,jalez=skills.Klar=in,Nurf=harmony,darko=gold.答案是Nurfdarko.
7、Charles
8、1001
9、67
10、108
小升初英文奥数题系列之二
时间:
2008-1-121:
57:
00来源:
学而思教育作者:
英语网网络编辑组
第一期英文奥数推出之后,家长和同学们都反映非常好,说受益匪浅。
因此我们推出系列二。
但同时也有些问题,很多家长反映孩子觉得比较难。
首先希望家长多多辅导孩子,其实奥数知识同学们是都会的,但是有些英文单词不认识,希望家长帮助孩子共同提高。
另外,我们只是希望那些比较优秀的同学和学有余力的同学来做,没有必要所有同学都要会做。
1、Didyouknow?
Inthedecimalnumbersystem(base10)tendifferentdigits,0to9,areusedtowriteallthenumbers.Inthebinarynumbersystem(base2)twodifferentdigitsareused,i.e.0and1.
Whichoneofthefollowingnumbersisnotavalidnumberinthe
octalnumbersystem(base8)?
A)128B)127C)126D)125E)124
2、Thenumberofdiagonalsthatcanbedrawninaregularpolygonwith
twentysides(icosagon)is_____.
3、Ifaandbareintegers,10⊗3=1,152⊗7=3,andthen379⊗6isequalto_____.
4、Twonumbersareintheratio2:
3.When4isaddedtoeachnumbertheratiochangesto5:
7.Thesumofthetwooriginalnumbersis____.
5、ThegreatestnumberofMondayswhichcanoccurin45consecutive
daysis____
6、Saulplaysavideogameinwhichhescores4forahitandlost6foramiss.After20roundshisscoreis30.Thenumberoftimeshehasmissedis____.
7、ThreegirlsA,BandCrunina100mrace.WhenAfinishes,Bis10m
behindAandwhenBfinishesCis20mbehindB.HowfarinmetreswasCfromAwhenAfinished?
(Let’sassumealltheathletesrunataconstantspeed)
8、Theareasofthefacesofarectangulaboxare84cm2,70cm2and30cm2.Thevolumeoftheboxincm3is____.
9、Youhave3weights:
1kg,3kgand9kgaswellasanequalarmbalance,asshown.Howmanydifferentweightobjectscanyouweighwiththesethree?
[Remembertheweightsmaybeplacedoneitherside]
参考答案:
1、A考察我们学过的简单的进制问题,显然8进制中没有8出现
2、170找规律,公式为n×(n-3)÷2
3、1定义新运算,就是求379÷6的余数。
4、40,16和24
5、7
6、5
7、28米,根据距离比求出速度比,三者的速度比为1:
9/10:
18/25
8、420分解质因数
9、13种
小升初英文奥数题[1]
2008-07-0610:
20:
49来源:
巨人学校英语教研组作者:
佚名[打印][评论]
小升初英文奥数题1
1、In2004,16JunefallsonaWednesday.Onwhatdayoftheweekwill16Junefallin2010?
2、Ifhalfofanumberis30,thenthree-quartersofthatnumberis____.
3、Thesumofthedigitsofthefollowingproduct999×555
4、Threepositiveintegershaveasumof28.Thegreatestpossibleproductthattheseintegerscanhaveis_____.
5、Inwhatfollows,□andΔaredifferentnumbers.When503isdividedby□theremainderis20.When503isdividedbyΔtheremainderis20.When493isdividedby□xΔtheremainderis_____.
6、Alady,herbrother,hersonandherdaughter(allrelatedbybirth)playedvolleyball.Theworstplayer'stwin(whoisoneofthefourplayers)andthebestplayerareofoppositesex.Theworstplayerandthebestplayerareofthesameage.Whocannotbetheworstplayer(s)?
A)brotheronly
B)daughteronly
C)sonanddaughteronly
D)ladyanddaughteronly
E)ladyonly
7、Ifyoucontinuethegivennumberpattern,inwhatrowandinwhatpositioninthatrowwillthenumber320be?
1--------------row1
23--------------row2
456--------------row3
78910--------------row4
Theanswersaregivenintheorderofrow;position.
参考答案:
1、Wednesday2、453、27(求数位上上的数字之和)4、28=9+9+10,因此答案为810
5、503-20=483483=3×7×23=21×23,因此□xΔ=483,因此此题余数是10.6、D7、25,20
218.79.199.*
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GRE考试之数学部分术语总汇
代数部分
1.有关数学运算
add,plus加subtract减difference差multiply,times乘product积divide除divisible可被整除的dividedevenly被整除dividend被除数,红利divisor因子,除数quotient商remainder余数factorial阶乘power乘方radicalsign,rootsign根号roundto四舍五入tothenearest四舍五入
2.有关集合
union并集propersubset真子集solutionset解集
3.有关代数式、方程和不等式
algebraicterm代数项liketerms,similarterms同类项numericalcoefficient数字系数literalcoefficient字母系数inequality不等式triangleinequality三角不等式range值域originalequation原方程equivalentequation同解方程,等价方程linearequation线性方程(e.g.5x+6=22)
4.有关分数和小数
properfraction真分数improperfraction假分数mixednumber带分数vulgarfraction,commonfraction普通分数simplefraction简分数complexfraction繁分数numerator分子denominator分母(least)commondenominator(最小)公分母quarter四分之一decimalfraction纯小数infinitedecimal无穷小数recurringdecimal循环小数tenthsunit十分位
5.基本数学概念
arithmeticmean算术平均值weightedaverage加权平均值geometricmean几何平均数exponent指数,幂base乘幂的底数,底边cube立方数,立方体squareroot平方根cuberoot立方根commonlogarithm常用对数digit数字constant常数variable变量inversefunction反函数complementaryfunction余函数linear一次的,线性的factorization因式分解absolutevalue绝对值,e.g.|-32|=32roundoff四舍五入
6.有关数论
naturalnumber自然数positivenumber正数negativenumber负数oddinteger,oddnumber奇数eveninteger,evennumber偶数integer,wholenumber整数positivewholenumber正整数negativewholenumber负整数consecutivenumber连续整数realnumber,rationalnumber实数,有理数irrational(number)无理数inverse倒数compositenumber合数e.g.4,6,8,9,10,12,14,15……primenumber质数e.g.2,3,5,7,11,13,15……注意:
所有的质数(2除外)都是奇数,但奇数不一定是质数reciprocal倒数commondivisor公约数multiple倍数(least)commonmultiple(最小)公倍数(prime)factor(质)因子commonfactor公因子 ordinaryscale,decimalscale十进制nonnegative非负的tens十位units个位mode众数median中数commonratio公比
7.数列
arithmeticprogression(sequence)等差数列geometricprogression(sequence)等比数列
8.其它approximate近似(anti)clockwise(逆)顺时针方向cardinal基数ordinal序数directproportion正比distinct不同的estimation估计,近似parentheses括号proportion比例permutation排列combination组合table表格trigonometricfunction三角函数unit单位,位
几何部分
1.所有的角
alternateangle内错角correspondingangle同位角verticalangle对顶角centralangle圆心角interiorangle内角exteriorangle外角supplementaryangles补角complement aryangle余角adjacentangle邻角acuteangle锐角obtuseangle钝角rightangle直角 roundangle周角straightangle平角includedangle夹角
2.所有的三角形
equilateraltriangle等边三角形scalenetriangle不等边三角形isoscelestriangle等腰三角形righttriangle直角三角形oblique斜三角形inscribedtriangle内接三角形
2007-6-1015:
40
回复
218.79.199.*
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3.有关收敛的平面图形,除三角形外
semicircle半圆
concentriccircles同心圆quadrilateral四边形pentagon五边形hexagon六边形heptagon七边形octagon八边形nonagon九边形decagon十边形polygon多边形parallelogram平行四边形equilateral等边形plane平面square正方形,平方rectangle长方形regularpolygon正多边形rhombus菱形trapezoid梯形
4.其它平面图形
arc弧line,straightline直线linesegment线段parallellines平行线segmentofacircle弧形
5.有关立体图形
cube立方体,立方数rectangularsolid长方体regularsolid/regularpolyhedron正多面体 circularcylinder圆柱体cone圆锥sphere球体solid立体的
6.有关图形上的附属物
altitude高depth深度side边长circumference,perimeter周长radian弧度surfacearea 表面积volume体积arm直角三角形的股crosssection横截面centerofacircle圆心 chord弦radius半径anglebisector角平分线diagonal对角线diameter直径edge棱 faceofasolid立体的面hypotenuse斜边includedside夹边leg三角形的直角边 medianofatriangle三角形的中线base底边,底数(e.g.2的5次方,2就是底数)opposite直角三角形中的对边midpoint中点endpoint端点vertex(复数形式vertices)顶点tangent切线的transversal截线intercept截距
7.有关坐标
coordinatesystem坐标系rectangularcoordinate直角坐标系origin原点abscissa横坐标 ordinate纵坐标numberline数轴quadrant象限slope斜率complexplane复平面
8.其它
planegeometry平面几何trigonometry三角学bisect平分circumscribe外切inscribe内切 intersect相交perpendicular垂直pythagoreantheorem勾股定理congruent全等的 multilateral多边的
其它
1.单位类
cent美分penny一美分硬币nickel5美分硬币dime一角硬币dozen打(12个)score廿(20个)Centigrade摄氏Fahrenheit华氏quart夸脱gallon加仑(1gallon=4quart)yard码m