The geomagnetic storm caused by this round of solar storm reaches its highest _11_ on the two poles of the earth, which affects electricity supply of the northern America. Overexposure to radiation threatens the health of passengers on planes flying _12_ the Polar Regions. If we fly in the sky during such a solar storm, it means we receive ten times the X-ray radiation. Its _13_ damaging.
Scientists say a solar eruption is like the sun sneezing, which will make the earth catch cold. Though this natural force is irresistible, scientists can _14_ detect its movement accurately by monitoring. Facing successive solar storms, humans cant drop their _15_.
1. A. refers to B. depends on C. prevents from D. acts on
2.A. among B. above C. along D. aboard
3.A. height B. intensity C. color D. shape
4.A. piece B. portion C. set D. round
5.A. sun B. earth C. star D. moon
6.A. delete B. determine C. damage D. detect
7.A. protection B. usage C. change D. float
8.A. resistance B. means C. help D. threat
9.A. Who B. While C. Where D. What
10.A. many B. much C. little D. few
11.A. position B. part C. concern D. level
12.A. with B. outside C. over D. on
13.A. really B. seldom C. hardly D. impossibly
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