西安电子科技大学网络教育学院 模拟试题(二) 《科技英语》期末考试试题 考试形式120分钟 题号 五 总分 题分 得分 I. Put the following sentences into Chinese: (4 points for each The varieties of nonferrous(有色金属) metal are nearly four times what they were Faraday was unable to calculate the velocity of propagation of electrom agnetic waves, a task which required the mathematical precision of Maxwell, which Faraday entirely lacked 3. The wave theory can give no reason why there should be a threshold frequency below which no photoe lectrons are observed no matter how strong the light beam, something that follows naturally form the quantum theory 4. The first step in a nuclear reaction between two colliding nuclear particles is their joining together to form a com pound nucleus 5. A further com plication is the tendency of the pilot's blood to leave his he ad because of inertia, leaving him im paired vision and perhaps unconscious 6. Discussion of this material is deferred until the final chapter because only then is the feedback, circuit, and application background necessary to fully appreciate the subtleties of com pensating modem operational am plifiers available 7 Of wider application is the fact that matter usually expands when its tem perature is increased and contracts when its temperature is decreased 8. The greater the nuclear mass, the less of the neutrons energy is transferred to the nucleus 9. The turning of the earth on its own axis is what makes the change from day to night 10. It is the existence of and the ability to control precisely these two independent charge-transport mechanisms that make possible all junction semiconductor devices西安电子科技大学网络教育学院 模拟试题（二） 《科技英语》期末考试试题 （考试形式 120 分钟） 题号 一 二 三 四 五 总分 题分 得分 I. Put the following sentences into Chinese: (4 points for each) • The varieties of nonferrous( 有色金属 ) metal are nearly four times what they were. 2. Faraday was unable to calculate the velocity of propagation of electromagnetic waves, a task which required the mathematical precision of Maxwell, which Faraday entirely lacked. 3. The wave theory can give no reason why there should be a threshold frequency below which no photoelectrons are observed, no matter how strong the light beam , something that follows naturally form the quantum theory. 4. The first step in a nuclear reaction between two colliding nuclear particles is their joining together to form a compound nucleus. 5. A further complication is the tendency of the pilot's blood to leave his head because of inertia, leaving him impaired vision and perhaps unconscious. 6. Discussion of this material is deferred until the final chapter because only then is the feedback, circuit, and application background necessary to fully appreciate the subtleties of compensating modem operational amplifiers available. 7. Of wider application is the fact that matter usually expands when its temperature is increased and contracts when its temperature is decreased. 8. The greater the nuclear mass, the less of the neutron's energy is transferred to the nucleus. 9. The turning of the earth on its own axis is what makes the change from day to night. 10. It is the existence of and the ability to control precisely these two independent charge-transport mechanisms that make possible all junction semiconductor devices