词汇:7haipE5sCnik 5bu:stEp
equator n.赤道 milestonen.里程碑
scramjetn.超音速燃烧冲压式, cargon.货物
combustionn.燃烧 brinkn.边缘
1. The Hyper-X broke the record because
B it flew along the equator.
D it traveled at a supersonic speed.
A A jet engine that gets oxygen from the air.
C A rocket engine that carries its own supply of oxygen.
3. What is NOT true about the scramjet engine?
B It extracts oxygen from the air that flows through the engine.
D It doesnt carry its own oxygen supply.
flight?
B It was self-powered,so it lasted only 11 seconds.
D It is a major milestone in the journey of making a new type of very fast airplanes,
A To make another 11-second hypersonic flight at 10 times the speed of the sound.
C To retest the aircraft that is left.
答案与题解:
2. B 第四段讲了三种发动机的氧气喷气式发动机是从空气中汲取氧气,火箭发动机必须自携氧气,而超音速冲压喷气发动机则不必白携氧气,而这正是Hyper-X使用的发动机装置。
4. D 文章的第六段中,密歇根大学的研究人员Werner J.A.Dahm说,Hyper-X的试飞成功只是研制一种新式快速飞机过程中的一个里程碑,而不是新型飞机的诞生。所以,D是正确选择,A是错误选择。B也不是Werner J.A.Dahm想要表达的意思。C是其他下程师而不是Werner J.A.Dahm说的话。
【2015年职称英语理工类A级阅读理解试题以及答案(5)】相关文章:
★ 2014年职称英语考试综合类的阅读理解备考练习题及答案10
★ 2014年职称英语考试(综合类)阅读理解试题及答案(3)
★ 2014年职称英语考试综合类的阅读理解备考练习题及答案2
最新
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01