fraction

CET4TEM4IELTSGRE考研TOEFLCET6中低频词常用词汇

英 ['frækʃ(ə)n] 美['frækʃən]

释义

n. 分数；部分；小部分；稍微

词态变化

复数: fractions;

近义词

division section part portion segment

中文词源

fraction 部分，少量

来自PIE*bhreg, 分开，破开，词源同break, fragment. 即破开的部分，少量。

英文词源

fraction: fraction: [14] Like fracture [15], which preserves its etymological meaning more closely, fraction comes ultimately from fractus, the past participle of Latin frangere ‘break’. This verb goes back to prehistoric Indo-European *bhr(e)g-, which also produced English break. The Latin derived noun fractiō simply meant ‘breaking’, particularly with reference to the breaking of Communion bread, but all trace of this literal sense has now virtually died out in English, leaving only the mathematical sense ‘number produced by division’ and its metaphorical offshoots.

Amongst the English meanings that have disappeared is ‘discord, quarrelling’, but before it went it produced fractious [18].
=> fracture, fragile, frail
fraction (n.): late 14c., originally in the mathematical sense, from Anglo-French fraccioun (Old French fraccion, "a breaking," 12c., Modern French fraction) and directly from Late Latin fractionem (nominative fractio) "a breaking," especially into pieces, in Medieval Latin "a fragment, portion," noun of action from past participle stem of Latin frangere "to break (something) in pieces, shatter, fracture," from Proto-Italic *frang-, from a nasalized variant of PIE root *bhreg- "to break" (cognates: Sanskrit (giri)-bhraj "breaking-forth (out of the mountains);" Gothic brikan, Old English brecan "to break;" Lithuanian brasketi "crash, crack;" Old Irish braigim "break wind"). Meaning "a breaking or dividing" in English is from early 15c.; sense of "broken off piece, fragment," is from c. 1600.

双语例句

1. If a stranger stops you, just wind the window down a fraction.: 如果有陌生人拦你的车，把车窗摇下一点点就行。

2. These 50,000 arrears cases represent a tiny fraction of all home owners.: 这5万个欠款案例只代表所有业主中的一小部分人。

3. The crop represents a tiny fraction of U.S. production.: 农作物仅占美国出产物极小的一部分。

4. Only a small fraction of a bank's total deposits will be withdrawn at any one time.: 任何时候，一家银行的总存款只有少量会被提取。

5. The car missed me by a fraction of an inch.: 那车子差一点儿就要撞到我了.

英英释意

1. a component of a mixture that has been separated by a fractional process

2. a small part or item forming a piece of a whole

3. the quotient of two rational numbers

实用场景例句

Only a small fraction of a bank's total deposits will be withdrawn at any one time.: 任何时候，一家银行的总存款只有少量会被提取。

She hesitated for the merest fraction of a second.: 她略微犹豫了一下。

She hesitated for a fraction of a second before responding...: 她在回答之前犹豫了一下。

Here's how to eat like the stars, at a fraction of the cost...: 这就是如何花少量钱却能像明星一样吃喝的方法。

The students had a grasp of decimals, percentages and fractions.: 学生们掌握了小数、百分数和分数。

Objective To Validte the Yeliabil of left ventricle ejection fraction ( LEF ) measured by reconstructed impedance cardiography ( RICG ).: 目的验证重建心阻抗图测量左室射血分数 ( LEF ) 的可靠性.

The value of a fraction is inversely proportional to that of the denominator.: 分数值与分母值成反比例.

They complain that moneylenders advance only a fraction of the item's value.: 他们抱怨说借款人只能提前支付一小部分物品的价值.

We should fraction the stone before putting it into the box.: 我们得把这块石头弄碎才能将它放进盒子.

What's the relationship of the ratio, the division and fraction?: 比和除法、分数之间有什么关系?

The car missed me by a fraction of an inch.: 那车子差一点儿就要撞到我了.

Even native speakers know only a fraction of these.: 即便是母语为英语的人也只认识其中一小部分.

Please open the train [ car ] window a bit [ crack ; fraction ] .: 请把这车窗打开一点点.

In this system, the heavy fraction of petroleum has corrosion resistance for steel.: 在该体系中石油重馏份对钢有缓蚀作用.

The higher the filling fraction, the stronger the influence of rod rotating on band gap.: 插入体的填充率越高, 方柱转动对系统带隙的影响越大.

Other independent predictors of mortality were age, impaired left ventricular fraction, and triple vessel disease.: 其他的死亡率独立预测因子还有年龄较大、左心室射血功能下降和三支血管病变.

A fraction of the 26 miles he once ran in the Big Sur International Marathon.: 就是冉迪曾经跑过的26英里国际马拉松赛程的一小段.

Computer Assistant Instruction for Mathematical Learning Difficulties to calculate fraction multiplication and use prompt situation.: 困难学生计算分数乘法的效果及应用提示程度的情形.

Cytosol The soluble fraction of cytoplasm remaining after all particles have been removed by centrifugation.: 胞质溶胶(细胞溶胶):离心后细胞质可溶的部分,不包括细胞中的颗粒成分.

During the course of data processing in microcomputer, operation problems of decimal fraction are often met.: 在单片机应用系统的数据处理过程中, 经常会遇到小数的运算问题.

Concept: The fraction of unchanged drug reaching systemic circulation following administration by any route.: 经任何给药途径给予一定剂量的药物后到达全身血循环内药物的百分率.

Every month a fraction of my allowance is spent on roses.: 每个月我用零花钱中的一小部分买玫瑰花.

The cost is only a fraction of his salary.: 那项费用不过是他薪水的一小部分.

He does not like the new governess by a fraction.: 他一点也不喜欢他的新家庭女教师.

In order to represent a binary number , the fraction point can be assigned at certain position.: 要显示二进制小数, 小数点位可以固定在某个位置.

Open the window a fraction, please.: 请把窗户打开一点.

Only a small fraction of a bank's total deposits will be withdrawn at any one time.: 任何时候，一家银行的总存款只有少量会被提取。

If a stranger stops you, just wind the window down a fraction.: 如果有陌生人拦你的车，把车窗摇下一点点就行。

The fraction was then multiplied by 100 and rounded to the nearest half or whole number.: 然后，分数被乘以100，取整为最接近的半数或整数。

These 50,000 arrears cases represent a tiny fraction of all home owners.: 这5万个欠款案例只代表所有业主中的一小部分人。

考试真题

Since tobacco is one of the biggest causes of premature death in the UK, a measure that tames the habit even by a fraction is worth trying.

Only a small fraction of the population was literate, but the production of books grew at an extraordinary speed.

The stakes are higher for me to share data because it's a bigger fraction of what's happening in my lab.

The circle is divided into sections, and each section represents a fraction of the data.

The graph is commonly used to show percentages; the whole pie represents l00 percent, so each piece is a fraction of the whole.

The under-estimation was systematic: when adding two numbers, the monkeys always paid attention to the larger of the two, and then added only a fraction of the smaller number to it.

In the internet age, at least in theory ,this fraction can be much reduced.

In the internet age, at least in theory, this fraction can be much reduced.

同义词辨析

part, piece, section, division, portion, fraction, fragment, segment, share

这些名词均可表示"整体的一部分"之意。

part：含义广，最普通用词。常指整体中可大可小的一部分，也可指整体中可分开的独立部分。

piece：指整体中的一些个体，尤指从某个整体上分出来的一部分。

section：指整体中的分区，部分与部分之间有显著界限。

division：通常指按类划分或分割成而的部分。常含抽象意义。

portion：侧重从整体中所分配到的那一部分，含一定的独立意义。

fraction：指包含在全体中的一部分，暗示微不足道的一部分。

fragment：指因破裂、分割等产生的支离破碎、不规则的一部分。

segment：指某物的特定部分或自然形成的部分，也指线形物品的一段。

share：指共有的东西中应占有的一部分。