共用题干 Solar StormAt the end of October 2003,a sudden solar storm hit the earth.A solar storm refers to the large amounts of charged particles released into space_________(1)the solar energyincreases.The release of the energy_________(2)place along with the activity of the sunspots with a cycle of 11 years.This time,the_________(3)of the storm exceeded expectations.This_________(4)of intense solar storm was caused by the eruption of a solar flare (闪光)and the ejection(喷发)of the solar corona(日冠)on October28, 2003. Large amounts of charged particles moved 150, 000,000 kilometers through space toward the _________(5)in 19 hours. They could affect aircraft roaming(漫游)in space.The high-energy particles will_________(6)some of the parts of an aircraft.They may also cause it to fail.High-energy particles can threaten the safety of an aircraft at a high orbit.If an aircraft orbits at a lower orbit,it is_________(7)because it is under the protection of the earth's magnetic field.A solar storm not only affects aircraft but also is a_________(8)to the environment and humans.The aerosphere and magnetic field of the earth can_________(9)humans from ultraviolet radiation and X-rays. While most of the X-rays are absorbed after they enter the aerosphere(大气层),still a few can_________(10) the ground.The geomagnetic storm caused by this round of solar storm reaches its highest level on the two_________(11)of the earth,which affects electricity supply of North America. Overexposure to_________(12)threatens the health of passengers on planes flying over the Polar Regions.If we fly in the sky during such a solar storm,it_________(13)we receive ten times the X-ray radiation.It's really damaging.Scientists say a solar eruption is like the sun sneezing,which will make the earth _________(14)a cold.Though this natural force is irresistible,scientists can still _________(15)its movement accurately by monitoring.Facing successive solar storms, humans can't drop their guard. _________(10)
A.lose B.reach C.break D.prepare正确答案B
