阅读下面的短文，文中有15处空白，每处空白给出了4个选项。 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 (1) a more accurate civilian alternative to the Global
Positioning System (GPS), operated by the US military. China will provide 230m
Euros (USD 259m) in (2) and will cooperate with technical,
manufacturing and market evelopment. "China will help Galileo to (3)
the major world infrastructure for the growing market for location
services," said Loyola de Palacio, EU transport commissioner. A new
center that will coordinate co-operation was also announced (4)
the European Commission, the European Space Agency (ESA) and the
Chinese Ministry of Science and Technology not long (5) . The
China-Europe Global Navigation Satellite System Technical Training and
Cooperation Center will be (6) at Beijing University. China
has a substantial satellite launch industry and could potentially help launch
the Galileo satellites. The US has claimed that Galileo could
interfere (7) the US ability to downgrade the GPS service
during military conflicts. European officials say this is unfounded and counter
that US opposition (8) the commercial challenge Galileo would
present to GPS. Galileo will be precise to within a meter, while the civilian
GPS service is accurate to around 10 meters. The Galileo satellite constellation
will (9) 27 operational and three reserve satellites orbiting
the Earth at all altitude of 23,600 km. The satellites will be strung along
three medium-Earth orbits at 56 degrees inclination to the equator and will
provide global coverage. The System should be operational by 2008 and the entire
project is expected to (10) around 3.2 billion Euros (USD 3.6
billion). The Europearl Commission has said Galileo will primarily
be used for transportation technology, scientific research, land management and
disaster monitoring. Galileo will provide two signals; a standard
civilian one and an encrypted, wide-band signal (11) the
Public Regulated Service (PRS). This second signal is designed to withstand
localized jamming and will be used by police and military services in Europe.
European Commission (12) have said China will not be given
access to the PRS. The first Galileo satellite is scheduled to
launch late in 2004. Clocks on board the (13) 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 (14) . A "search
and rescue" function will also (15) distress signals be
relayed through the constellation of satellites.
infrastructure n. 基础结构，基础设施 encrypt v. 把……编码 jam
v. (信号)干扰 unfounded adj.无事实根据的 sensorn. 传感器；敏感元件
constellation n.(卫星)群集 inclination n. 倾斜
uplink n. (从地球到通讯卫星的)上行线路，向上传输 1. A. offer
B. offered C. will offer
D. has offered 2. A. funding
B. providing C. paying
D. charging 3. A. build
B. use C. become
D. do 4. A. in
B. at C. on
D. by 5. A. before
B. ago C. after
D. later 6. A. found B.
produced C. positioned D. located
7. A. with B. for
C. about D. above
8. A. results in B. gives rise to
C. is due to D. causes 9. A. be made
from B. consist of C. consist in
D. be consisted of 10. A. spend
B. gain C. give
D. cost 11. A. offered
B. called C. used
D. turned 12. A. officials
B. countries C. organization D. agreement
13. A. 不填 B. the satellite
C. the satellites D. satellites 14. A. speed
B. direction C. distance
D. location 15.