大学科技英语课文例句和课后部分答案..docVIP

1.把激光射束射向地球Laser beams are emitted at the moon 2.这个模型描述了原子的情况This model is descriptive of the behavior of an atom 3.那位教授将做有关移动通讯方面的讲座That professor will deliver a lecture on mobile communication 4.她给本科生上C++程序设计语言课She gives undergraduates lessons in the C++programming language 5.这些学生在做物理实验These students are making an experiment in physics 6.他们在做电学实验They are doing an experiment on electricity 7.该教授对沃氏函数的研究起了重要作用The professor has played an important role in the research on the Walsh Functions 8.无线电波朝四面八方传播Radio waves travel in all directions 9.为此，我们必须在负载两端接一个电容器For this purpose,we must connect a capacitor across the load 10.在这个温度上该金属就会融化At this temperature the metai will melt 11.该专家将在会议上宣读一篇重要的学术论文The expert will read an important academic paper at the conference 12.速度等于距离与时间之比Speed is the ratio of distance to time 13.太阳离地球的距离是很远的The distance of the sun from the earth is very great 14.温度对金属导电率的影响是很小的The effect of temperature on conductivity of metals is small 15.本节论述晶体管与电子管相比的优点This section deals with the advantages of transistors over electron tubes 16.重力加速度随纬度的变化，部分原因是由于地球的自转The variation of g with latitude is due in part to the earth’s rotation 17.Y对x的依从关系用y=f(x)表示The dependence of y on x is expressed by y=f(x) 18.人们用椭圆来描述行星绕太阳的运行情况Ellipses are used to describe the motions of the planets around the sun 19.我们讨论了电流通过酸碱盐溶液的情况We have discussed the passage of an electric current through liquid solutions of acids,bases,and salts 20.物体对净力F的影响就是正比于F的加速度a The response of a body to a net force F is an acceleration a proportional to F 21.把式（4）与式（6）相比较，我们就能的得到一下几个关系式A comparison of Eq.(4)with Eq.(6)Leads to the following relations 22.我们可以把一个力分解成x和y分量The resolution force into x and y components is possible 23.应避免使人体接触有潜在毒性的物质Exposure of the body to potentially toxic substances should be avoided 24.这些特殊问题是有把原子能用作为能源而产生的These special problems arise from the use of atomic energy as a source of power 25.把电流定义为电荷的运动对我们大家都是熟悉的The definition of an electric current as the fl