科技人员科技英语写作班练习题和测验题.doc

科技人员科技英语写作班练****题和测验题
课后练****1
I、在下列每个句子的空白处填上适当的冠词（如果必要的话），然后将句子译成汉语：
1. There has been _____ ever greater interest in this subject.
2. The power rating is the maximum power the resistor can safely dissipate without too great _____ rise in temperature.
3. Its primary disadvantage is _____ increase in noise.
4. _____ successful design of the equipment requires _____ detailed knowledge of the performance specifications.
5. In _____ Bohr model of the hydrogen atom, _____ single electron revolves around _____ single proton in a circle of radius R.
6. The unit of frequency is _____ hertz.
7. _____ Fig. 5-1 shows _____ Oersted’s experiment.
8. _____ machine is _____ device for transmitting force to accomplish _____ definite purpose.
9. _____ hydraulic press will be considered in _____ Chapter 14.
10. It is easy to determine _____ value of _____ parameter
μ.
11. By _____ Eq. (2-1) we have _____ following relation.
12. It is necessay to use _____ S-shaped tube here.
13. The authors work at _____ University of Texas at _____ Arlinton.
II、根据所给的汉语文本，改正各英语文本中的错误：
1、【汉语原文】UASMA协议采用了独特的幀结构。
【英语文本】UASMA protocol employs an unique frame structure.
2、【汉语原文】最后，用这种方法设计了宽带阶梯阻抗变换器。
【英语文本】At last, broad stepped impedance transformer is designed by this method.
3、【汉语原文】先应秘密共享系统安全性的动态分析和评估 [这是一篇论文的标题]
【英语文本】Dynamic analysis and evaluation of security for proactive secret sharing system
4、【汉语原文】利用状态转移图，获得了系统的安全性概率。
【英语文本】With state-transition diagram, security probability of system is obtained.
5、【汉语原文】该方法适用于任意形状的一维势垒。
【英语文本】The approach can be applied to one-dimensional potential barrier with arbitrary profile.
6、【汉语原文】我们提出了一种基于牛顿叠代法的数值方法。
【英语文本】We propose a kind of numerical method based on the Newton’s iterative method.
课后练****2
I、将下列句子译成英语，注意正确使用介词：
1、这类计算机与那类相比有许多优点。
2、我们必须解这个方程把回路电流（loop current）求出来。
3、在这新的五章中，第一章论述负反馈（negative feedback）的基本原理。
4、这个电路（circuit）中的电流（current）与电压（voltage）的相位（p