Read the following article and select the best answer. Article: One morning, teachers arrived to find the little country schoolhouse swallowed in flames. They dragged an unconscious little boy, who went to start the fire in the old-fashioned coal stove to heat, out of the flaming building more dead than alive. He had major burns over the lower half of his body and was taken to a nearby county hospital. From his bed the dreadfully burned, semi-conscious little boy faintly heard the doctor talking to his mother. The doctor told his mother that her son would surely die -- which was for the best, really -- for the terrible fire had ruined the lower half of his body. But the brave boy didn't want to die. He made up his mind that he would survive. Somehow, to the amazement of the physician, he did survive. When the deadly danger was past, he again heard the doctor and his mother speaking quietly. The mother was told that since the fire had destroyed so much flesh in the lower part of his body, it would almost be better if he had died, since he was doomed to be in a wheelchair all lifetime with no use at all of his lower limbs . Once more the brave boy made up his mind. He would not be a disabled man. He would walk. But unfortunately from the waist down, he had no motor ability. His thin legs just hung there, all but lifeless. Ultimately he was released from the hospital. Every day his mother would massage his little legs, but there was no feeling, no control, nothing. Yet his determination that he would walk was as strong as ever. When he wasn't in bed, he was confined to a wheelchair. One sunny day his mother wheeled him out into the yard to get some fresh air. This day, instead of sitting there, he threw himself from the chair. He pulled himself across the grass, dragging his legs behind him. He worked his way to the white fence bordering their lot. With great effort, he raised himself up on the fence. Then he began dragging himself along the fence,resolved that he would walk. He started to do this every day until he wore a smooth path all around the yard beside... Question: Glenn got seriously burned _ . - when he was playing near the stove - when he went to set fire to the schoolhouse - when he was probably younger than ten - when his teachers were lighting the fire
when he was probably younger than ten

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Read the following article and select the best answer. Article: To live forever was the dream of many emperors in ancient China.People were ordered to call them Wansui,which means 10,000 years,but no human could live that long.How long can humans really live? According to the latest scientific discovery,humans are able to live up to the age of 120 or perhaps even longer. Several recent studies showed that our life span can be extended far beyond normal limits.Cynthia Kenyon,a professor at the University of California in San Francisco doubled the life of a worm from two weeks to a month.By changing the function of a single gene,known as daf-2,the scientist not only added extra days to the worm's life but also kept it a healthy as worms which were half its age. There are two similar genes in the bodies of mammals.By changing the function of on gene,scientists extended the life of a mouse by 1 8 per cent(or 4.5 months).Another gene is called IGF-1.Researchers still don't know how it affects our body.But by reducing its functions the life of a mouse increases by 33 per cent for 8.6 months).The average life span of a mouse is 26 months. In the experiment of extending life,an ancient saying,"you are what you eat." also seems to be true.Vegetables contain fewer calories than meat,and help to prolong life,scientists say. Research has found that taking in fewer calories affects our lives in a similar way to reducing IGF-1. US biologist John Phelan suggests low calorie diets could increase human life span,but there is no proof yet. Researchers are still waiting for the results of a study started in 1987.Monkeys are fed with low calorie food to see what happens.A monkey's typical life span is 40 years,so there is a little while to wait. In China,average,life expectancy has now reached 70,double that of 1949. Increasing the length of our lives may bring us closer to the dreams of our ancient emperors.But it may also cause social problems such as housing and employment,social scientists have warned. Question: Which of the following is TRUE about statement of life span? - A few emperors in ancient China could live up to 10,000 years. - Creatures aren't able to lives up to 120 years. - The dream of living forever is coming true. - In China,the average life span is twice as long as it was half a century ago.
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In China,the average life span is twice as long as it was half a century ago.

Read the following article and select the best answer. Article: Since the Internet came into homes, the daily life has never been the same again. But the thing that worries most of us is that we can get viruses from the Internet. But can we catch viruses on our cell phones? A new study in the journal Science says yes, but the spread of such mobile software that can bring harm to our cell phones won't reach dangerous levels until more cell phones are on the same operating system. Computers are easily attacked by viruses because they share data, especially over the Internet. Of course, nowadays, more people are using their cell phones more and more frequently. They use them for emailing, text messaging and downloading troublesome ring tones, etc.,so it is obvious that cell phone viruses are a threat as well. Scientists used nameless call data from more than six million cell phone users to help model a possible outbreak. And they concluded that viruses that spread from phone to phone by Bluetooth are not much concerned, because users have to be in close physical relation for their phones to "see" one another. However, viruses that spread through multimedia messaging services can move much faster, because they can come in disguise , such as a cool tune sent by a friend. The good news is that to be effective, these viruses need their victims to all use the same operating system, which not enough of us do. Because there is no Microsoft operating system for mobile phones, yet. Thank goodness. Question: What is the passage mainly about? - The operating system of cell phones. - The threat of cell phone viruses. - The wide use of cell phones. - Computer viruses.
The threat of cell phone viruses.