数学专业英语课后答案word版本Word文档下载推荐.docx

1、5.运算operation，加法addition，减法subtraction，乘法multiplication，除法division，证明proof，推理deduction，逻辑推理logical deduction6.测量土地to measure land，推导定理to deduce theorems，指定的运算indicated operation，获得结论to obtain the conclusions，占据中心地位to occupy the centric place汉译英（1）数学来源于人类的社会实践，包括工农业的劳动，商业、军事和科学技术研究等活动。 Mathematics co

2、mes from mans social practice, for example, industrial and agricultural production, commercial activities, military operations and scientific and technological researches. （2）如果没有运用数学，任何一个科学技术分支都不可能正常地发展。No modern scientific and technological branches could be regularly developed without the applica

3、tion of mathematics. （3）符号在数学中起着非常重要的作用，它常用于表示概念和命题。Notations are a special and powerful tool of mathematics and are used to express conceptions and propositions very often. （4）17 世纪之前，人们局限于初等数学，即几何、三角和代数，那时只考虑常数。Before 17th century, man confined himself to the elementary mathematics, i. e. , geomet

4、ry, trigonometry and algebra, in which only the constants were considered. （5）方程与算数的等式不同在于它含有可以参加运算的未知量。Equation is different from arithmetic identity in that it contains unknown quantity which can join operations. （6）方程又称为条件等式，因为其中的未知量通常只允许取某些特定的值。Equipment is called an equation of condition in tha

5、t it is true only for certain values of unknown quantities in it. （7）方程很有用，可以用它来解决许多实际应用问题。Equations are of very great use. We can use equations in many mathematical problems. （8）解方程时要进行一系列移项和同解变形，最后求出它的根，即未知量的值。To solve the equation means to move and change the terms about without making the equati

6、on untrue, until the root of the equation is obtained, which is the value of unknown term. 英译汉1.Algebra has evolved from the operations and rules of arithmetic.The study of arithmetic begins with addition,multiplication,subtraction,and division of numbers:4+7,37682,49-22,408.In algebra we introduce

7、symbols or letterssuch as a,b,c,d,x,y,zto denote arbitrary numbers and，instead of special cases，we often consider general statements：a+b,cd,x-y,xa.代数是从算术的运算和规则当中逐渐发展起来的，算术的研究是从数的加减乘除开始的。例如4+7，37682，49-22，408。在代数学里,我们采用符号或字母。例如a,b,c,d,x,y,z来表示任意的数字，而不考虑那些特殊情况。我们经常考虑的是一般的表达式，例如a+b,cd,x-y,xa。2.The lang

8、uage of algebra serves a twofold purpose.First,we may use it as a shorthand to abbreviate and simplify long or complicated statements.Second,it proves a convenient means of generalizing many specific statements.代数的语言有两个作用。第一个是使用它作为一种速记法去缩减和减化那些又长又复杂的表达。第二，它被证明是一种概括许多具体的表达方式的便捷途径。3.Many expressions i

9、nvolve two or more operations.Grouping symbols tell us which operation is to be done first.The common grouping symbols are parentheses,（）,brackets.,and the fraction bar,.For example,in the expression 2（3+4）,we do the addition first and then we do the multiplication:2（3+4）=2（7）=14.许多数学表达式包含两个或更多的运算。分

10、组符号告诉我们哪一个运算先做。常见的分组符号是圆括号，方括号和分数线。例如，在数学表达公式2（3+4）里。我们先做加法再做乘法2（3+4）=2（7）=142.2 几何与三角1.学会institution，建筑师 architect, 机械师 machinist, 制图员draftsman, 测量者surveyor, 木匠carpenter2.点point, 端点endpoint, 线line, 直线straight line, 线段 line segment, 曲线curved line, 折线 broken line, 射线ray , 平面 plane,曲面 curved surface3.

11、立体solid, 柱体cylinder, 立方体cube,球 sphere, 棱锥pyramid,圆锥 cone ,4.圆circle,圆心 center, 直径diameter, 半径radius, 半圆semicircle, 弦chord, 弧arc, 优弧major arc, 劣弧minor arc5.角angle, 边side, 三角形triangle, 直角三角形right triangle,斜边 hypotenuse, 直角边right-angle side6.长度length,宽度 breadth/width,厚度 thickness, 位置position7.几何的geomet

12、rical,立体的 three-dimensional , 弯曲的curved,等距离的 equidistant ,无限的 infinite8.培养创造力train originality,必须的毅力 necessary perseverance , 提高鉴赏力raise/improve the appreciation ability9.消失了的边界vanishing boundaries/landmarks,有序性和优美感 orderliness and sense of beauty, 几何图形大量存在geometric forms abound in , 定理成立的先决条件a prer

13、equisite to a theorem （1）许多专家都认为数学是学习其他科学技术的必备基础和先决条件。Many experts recognize that mathematics is the necessary foundation and prerequisite of studying other science technology. （2）西方国家的专家认为几何起源于巴比伦和埃及人的土地测量技术，其实中国古代的数学 家对几何做了许多出色的研究。The western experts think that geometry had its origin in the measu

14、rements by the Babylonians and Egyptians of their lands. Infect, the ancient Chinese mathematicians made much remarkable study for geometry. （3）几何的学习使学生在思考问题时更周密和审慎，他们将不会盲目接受任何结论。In studying geometry, the student is taught to think clearly and critically and he is led away from the practice of blind acceptance of any conclusions. （4）数学培养学生的分析问