The 2012 London Olympics had enough problems to worry about. But one more has just been added -- a communications blackout caused by solar storms.
　　After a period of calm within the Sun, scientists have detected the signs of a flesh cycle of sunspots that could peak in 2012, just in time for the arrival of the Olympic torch in London.
　　Now scientists believe that this peak could result in vast solar explosions that could throw billions of tons of charged matter towards the Earth, causing strong solar storms that could jam the telecommunications satellites and interact links sending five Olympic broadcast from London.
　　"The Sun's activity has a strong influence on the Earth. The Olympics could be in the middle of the next solar maximum which could affect the functions of communications satellites," said Professor Richard Harrison, head of space physics at the Rutherford Appleton Laboratory in Oxfordshire.
　　At the peak of the cycle, violent outbursts called coronal mass ejections (日冕物质抛射) occur in the Sun's atmosphere, throwing out great quantities of electrically-charged matter. "A coronal mass ejection can carry a billion tons of solar material into space at over a million kilometres per hour. Such events can expose astronauts to a deadly amount, can disable satellites, cause power failures on Earth and disturb communications," Professor Harrison added. The risk is the greatest during a solar maximum when there is the greatest number of sunspots.
　　Next week in America, NASA is scheduled to launch a satellite for monitoring solar activity called the Solar Dynamics Observatory (SDO), which will take images of the Sun that are 10 times clearer than the most advanced televisions available.
　　The Rutherford Appleton Laboratory helped to make the high-tech cameras that will capture images of the solar flares (太阳耀斑) and explosions as they occur.
　　Professor Richard Harrison, the lab's director, said that the SDO should be able to provide early warning of a solar flare or explosion big enough to affect satellite communications on Earth "If we have advanced warning, we'll be able to reduce the damage. What you don't want is things switching off for a week with no idea of what's caused the problem," he said.
【小题1】The phrase "communications blackout" in paragraph 1 most probably refers to____________ during the 2012 Olympics.

A young Scottish lady, like a lot of teens today, got tired of home. The daughter objected to her family’s 　【小题1】　lifestyle and said, “I don’t want your God. I am leaving!” She left home. Before long, she was disappointed and unable to find a job, so she took to the streets to do everything she could to 　【小题2】　. Many years passed by, her father died, her mother grew 　【小题3】　, and the daughter became more and more stubborn in her way of life.
No  【小题4】 was made between mother and daughter during these years. The mother, having 　 heard of her daughter’s whereabouts, went to the poor part of the city in 　【小题5】　of her daughter. She stopped at 　【小题6】　of the rescue missions(收容所) with a simple speech. “Would you allow me to 　【小题7】　this picture?” It was a picture of the smiling, gray-haired mother with a handwritten 　【小题8】　at the bottom: “I love you still … come home!”
One day the daughter wandered into a rescue mission for a hot meal. She sat 　【小题9】　listening to the service, all the while letting her 　【小题10】　wander over to the bulletin board. There she saw the picture and thought, could that be my mother?
She couldn’t 　【小题11】　until the service was over. She stood and went to look. It was her mother, and there were those words, “I love you still … come home!”　【小题12】　she stood in front of the picture, she wept. It was too 　【小题13】　to be true.
It was night, but she was so 　【小题14】　by the message that she started walking home.　【小题15】　the time she arrived it was early in the morning. She was afraid and 　【小题16】　her way timidly. As she knocked, the door 　【小题17】　open on its own. She thought someone must broken into the house. Concerned for her mother’s 　【小题18】　, the young girl ran to the bedroom and shook her mother awake and said, “It’s me! It’s me! I’m home!”
The mother couldn’t believe her eyes. They fell into each other’s 　【小题19】　. The daughter said, “I was so worried and thought someone had broken in.” The mother replied gently, “No, dear. From the day you left, that door has never been 　【小题20】　.”

The common cold is the world's most widespread illness, which is plagues (瘟疫) that flesh receives. The most widespread fallacy (谬误) of all is that colds are caused by cold. They are not. They are caused by viruses passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone who already has one.

If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever. But they do not. And in isolated arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes.

　　During the First World War soldiers who spent long periods in the trenches (战壕) cold and wet, showed no increased tendency to catch colds. In the Second World War prisoners at the notorious Auschwitz concentration camp (奥斯维辛集中营), naked and starving, were astonished to find that they seldom had colds.

　　At the Common Cold Research Unit in England, volunteers took part in experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time. After taking hot baths, they put on bathing suits, allowed themselves to be dipped with cold water, and then stood about dripping wet in drafty room. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.

　　If, then, cold and wet have nothing to do with catching colds, why are they more frequent in the winter? Despite the most pains-taking research, no one has yet found the answer. One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier for cold viruses to be passed on.

　　No one has yet found a cure for the cold. There are drugs and pain-killer pills such as aspirin, but all they do is relieve the symptoms.

1.How many examples are offered by the writer to support his argument?

2.Which of the following does not agree with the chosen passage?

3.Arctic explorers may catch colds when _______.

4.Volunteers taking part in the experiments in the Common Cold Research Unit _______.

5.The passage mainly discusses _______.