Tests Show Women Suited for Space Travel（理工类）
      Between 1997 and 1981, three groups of American women, numbering 27 in all, between the age of 35 and 65, were given month-long tests for space travel purposes._____ (1) _____
      Those women were carefully selected from among many applicants. _____ (2) _____ They were not allowed to smoke or drink alcohol during the tests, and they were expected to tolerate each other’s company at close quarters for the entire period. Among other things they had to stand pressure three times the force of gravity and carry out both physical and mental tasks while exhausted from strenuous physical exercise._____ (3) _____During that time they suffered backaches and other discomforts._____ (4) _____
      Results of the tests suggest that women will have significant advantages over men in space.
      _____ (5) _____Men’s advantages in terms of strength and stamina, meanwhile, are virtually wiped out by the zero-gravity condition in space.

A. At the end of ten days, they had to spend a further twenty days absolutely confined to bed.
B. They were volunteers and were paid barely above the minimum wage.
C. These tests were conducted to determine how they would respond to conditions resembling those aboard the space shuttle.
D. They need less food and less oxygen and they stand up to radiation better.
E. Some of them were over 65.
F. When they were finally allowed up, the more physically active women were especially subject to pains due to a slight calcium loss.
Agitated Sunspot Cause Trouble
      If the lights in your house keep flickering, blame frequent sunspots.
      A sunspot is actually charged particles flying at the speed of 3 million kilometers an hour out of the surface of the sun to form sun storms.
      Every 11 years, the sun, as its energy accumulate inside up to a certain point, will send out streams of charged particles. _____ (1) _____
      One is that the magnetic field of the earth is much disturbed because of the sun’s interference  in the ionosphere, which is 80 to 500 kilometers above the earth. Wireless short-wave communication, which depends on the wave’s reflection against this layer of atmosphere, is likely to be jammed. _____ (2) _____
      Scientists also say that the active movement of the charged sun storm also has effects on earthquakes. 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.
      Little research has been carried out about how exactly the sunspot will negatively harm the health of the people. _____ (3) _____ 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.
Besides, the nervous system is also affected. _____ (4) _____
      It is hard to say when the sunspots are most violent during their active year, but generally one active period is believed to last possible 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 important to wireless and mobile communication.
B. But the communication situation in each case returned to normal in about 24 hours.
C. Statistics show that traffic accidents are more frequent when sunspots are active.
D. 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.
E. It is said that mobile phone communication may be affected too.
F. These charged particles affect the earth, which is directly energized by the sun in a number of ways.