2015年职称英语考试理工类完型填空必备精选习题(5)

　　China to Help Europe Develop GPS Rival

　　China is to contribute to a new global satellite navigation system being developed by European nations. The Galileo satellite system will _____ a more accurate civilian alternative to the Global Positioning System , operated by the US military. China will provide 230m Euros in funding and will _____ with technical, manufacturing and market development.

　　A new center that will coordinate co-operation will be set _____ at Beijing University. China has a substantial satellite launch industry and could potentially help _____ the Galileo satellites.

　　The US has claimed that Galileo could interfere with the US with _____ to downgrade the GPS service during military conflicts. European officials say this is unfounded and counter that US opposition is caused by the commercial challenge Galileo would present to GPS. Galileo will be _____ to within a meter, while the civilian GPS service is accurate to around 10 meters.

　　The Galileo satellite constellation will consist of 27 operational and three reserve satellites _____ the Earth at an altitude of 23,600 kin. The satellites will be strung along three medium-Earth orbits at 56 degrees inclination _____ the equator and will provide global coverage. The system should be _____ by 2008 and the entire project is expected to cost around 3.2 billion Euros

　　The European Commission has said Galileo will _____ be used for transportation technology, scientific research, land management and disaster monitoring.

　　Galileo will provide two _____; a standard civilian one and an encrypted , wide-band signal called the Public Regulated Service . This second signal is _____ to endure localized jamming and will be used by police and military services in Europe.

　　The first Galileo satellite is _____ to launch late in 2004. Clocks on board the satellites will be synchronized through 20 ground sensors stations, two command centers and 15 uplink stations.

　　Receivers on the ground will use time signals from the satellites to precisely calculate their _____. A =search and rescue function will also let distress signals be _____ through the constellation of satellites.

　　1 A set B represent C offer D indicate

　　2 A cooperate B install C prevent D protect

　　3 A off B with C in D up

　　4 A broadcast B launch C put D use

　　5 A ability B service C system D channel

　　6 A open B likely C different D precise

　　7 A getting B considering C orbiting D improving

　　8 A to B in C along D beside

　　9 A operational B complex C advanced D cheap

　　10 A correctly B ironically C strangely D primarily

　　11 A channels B signals C directions D functions

　　12 A brought B taken C designed D protected

　　13 A told B scheduled C considered D allowed

　　14 A quality B colour C weight D location

　　15 A set B responded C transmitted D converted

　　【参考答案】

　　1. C 2. A 3. D 4. B 5. A 6. D 7. C 8. A 9. A 10. D

　　11. B　 12. C　 13. B　 14. D　 15. C