阅读下面的短文，文章中有5处空白，文章后有6组文字，请根据文章的内容选择5组文 字，将其分别放回文章原有位置，以恢复文章原貌。 Agitated Sunspot Cause Trouble If the
lights in your house keen flickering, blame frequent sunspots. A sunspot is
actually charged particles flying at the speed 6f 3 million kilometers an hour
out of the surface of the sun to form sun storms. (1) .
The earth, which is directly energized by the sun, is
influenced by sun storms in a number of ways. (2) Wireless
short-wave communication, which depends on the wave’s reflection against this
layer of atmosphere, is likely to be jammed. It is said that mobile phone
communication may be affected too. (3) According to a
research conducted by the Russian scientists from 1957 to 1960, the frequency of
earthquakes can be linked to the movement of the sunspots.
Though little research has been carried out about how exactly the sunspot
will negatively harm the health of the people, a paper published by a North
Korea observatory says that sun storms may cause an increase in the incidence of
heart disease and skin disease. (4) Besides,
the nervous system is also affected, and traffic accidents are more frequent
when sunspots are active. It is hard to say when the sunspots
are most violent during their active year, but generally one active period is
believed to last possibly eight days. Not long ago there were two violent sun
storms breaking out, which seriously affected mobile phone communication, etc.
in many parts of the world. (5) A. Ionosphere
is high above the earth. B. One is that the magnetic filed of
the earth is much disturbed because of the sun’s interference in the ionosphere
which is 80 to 500 kilometers above the earth. C. Scientists
also say that the active movement of the charged sun storm also has effects on
earthquakes. D. Every 11 years, the sun, as its energy
accumulate inside up to a certain point, will send out streams of charged
particles, which affect the earth in different ways. E. But the
communication situation in each case returned to normal in about 24
hours. F. So, scientists warn that people going outdoors should
be careful to protect their exposed skin and eyes with clothes, umbrellas and
sunglasses from the strong sunlight rich.in ultraviolet rays.