英语科技英语写作习题以及答案.docVIP

练习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 __an___ ever greater interest in this subject. 2. The power rating is the maximum power the resistor can safely dissipate without too great __a_ rise in temperature. 3. Its primary disadvantage is __an___ increase in noise. 4. __The___ successful design of the equipment requires ___a__ detailed knowledge of the performance specifications. 5. In __the___ Bohr model of the hydrogen atom, ___a__ single electron revolves around ___a__ single proton in a circle of radius R. 6. The unit of frequency is ___the__ hertz. 7. If __a___ voltage is applied across ___a__ circuit, ___an__ electric current will flow in __the___ circuit. 8. ____ Fig. 5-1 shows _____ Oersted’s experiment. 9. We should use ___an__ 18-volt battery here. 10. ___A__ machine is __a___ device for transmitting force to accomplish ___a__ definite purpose. 11. ___The__ hydraulic press will be considered in _____ Chapter 14. 12. ___The__ study of fluids in motion is one of _ the____ more difficult branches of mechanics because of __the___ diversity of phenomena that may occur. 13. It is easy to determine __the___ value of __the___ parameter μ. 14. By _____ Eq. (2-1) we have _the____ following relation. 15. It is necessay to use __an___ S-shaped tube here. 16. The authors work at __the___ University of Texas at _____ Arlinton. 17. This is __an___ R-bit transformer. 18. ___An__ XOR gate must be used here. II、将下列句子译成英语，注意正确地使用冠词： 1、这是一个h参数（parameter）。 This is an h parameter. 2、现在我们转向（turn to）讨论一下局域网（local area networks）。 Now let’s turn to a discussion of local area networks. 3、Bainbridge 质谱仪（mass spectrometer）是与光谱仪（optical spectrometer）一样重要的仪器。 The Bainbridge mass spectrometer is as important an instrument as the optical spectrometer. 4、必需求出为使一个电子通过（travel）这一段导线（length of the wire）需要多长的时间。 It is necessary to find out how long a time it needs to ravel the length of the wire for an electron.