D．None, they spoke their first words

　　　31．The secret of language is that__________. .

　　　A．one sound might be as good as another

　　　B．people can understand each other

　　　C．a certain sound is for a certain thing

　　　D．there is a special sound for each person

　　　32．You could learn words________.

　　　A．before you knew what the language was

　　　B．after you knew what the language was

　　　C．before you knew the secret of the language

　　　D．when you were a baby

　　　33．The aim in using language is ________.

　　　A．to get everything one wants from others

　　　B．to say what one wants to know

　　　C．to share ideas, opinions, news, etc with one another

　　　D．to make oneself understood by others

　　　 One day, a patient came to see me. He worked as a waiter in a restaurant and his problem was acid reflux (胃酸倒流), a disease that influences as many as 40 percent of Americans, a marked increase in recent years. Reflux can lead to esophageal (食道的) cancer, which has increased by about 500 percent since the 1970s. The drugs we use to treat reflux don't always work and may even increase the risk of developing cancer when used long term.

　　　What is responsible for these worrying developments? For one, our poor diet, with its huge increases in the intake of sugar, fat, soft drinks, and unhealthy foods. But another important fact has been overlooked: dinnertime. Over the past twenty years, the time of my patients' evening meals has become later and later. Dinner - already pushed back by longer work hours - is often further delayed (推迟) by activities such as shopping and exercise.

　　　In my experience, the single most important treatment for reflux is to avoid late eating. A patient with reflux came to see me because her father and uncle died of esophageal cancer, and she was afraid of getting it too. Her nightly routine (常规) included a 9 p.m. dinner with at least two bottles of red wine. The reflux was serious, and changes were needed.

　　　She listened, then did not come back to see me for a year. "For the first two months, I just hated you," she told me, "and for the next two months, I was having some trouble eating. I guessed I was going to die of esophageal cancer." Then she added, "You know, we're the reason that it's not so easy to get 6 p.m. reservations (预约) at the good restaurants anymore."

　　　To stop the increase in reflux disease, we have to stop eating at least three hours before bed. As for my waiter patient? I told him to eat dinner before 7 p.m. Within six weeks, his reflux was gone.

　　　34．The disease the waiter caught is _____.

　　　A．on the rise B．easy to control

　　　C．unusual in America D．the most dangerous cancer

　　　35．What does the underlined word "overlooked" in Paragraph 2 mean?

　　　A．Talked about a lot. B．Paid no attention to.

　　　C．Carefully looked into. D．Taken into consideration.

　　　36．Why did the woman patient hate the author?

　　　A．He spoke of her dead father and uncle.

　　　B．He asked her to change her eating habits.

　　　C．He couldn't find a way to deal with her problem.

　　　D．He couldn't make her healthy again within a year.

　　　37．The author writes the text to tell us _____.

　　　A．not to work late at night B．to avoid eating at restaurants

　　　C．unhealthy foods cause cancer D．the danger of eating late at night

　　　 The morning of March 2, 2012, was a busy one for the students in Mrs. Goodknight's class in Henryville, Indiana. There was morning meeting with poems to read, jokes to share, and tests to prepare for. "It was just an ordinary day," says student Lyric Darling, 12.

　　　At noon, while students played basketball under a sunny sky, a huge tornado (龙卷风) was forming 50 miles away. Around 2:25 p.m., 20 minutes before school was supposed to let out, a huge tornado touched down in Fredericksburg, 20 miles away. As word spread, parents rushed to the school. Teachers rushed to get kids onto buses or into waiting cars. By 2:45, the skies were darkening.

"I was crying," says Lyric. "All around me, kids were crying." Two buses returned to the school with students whose parents had not been home. Teachers brought the kids to the office, where they all took cover under desks. Suddenly the power went out. And then the tornado attacked the school, filled with wood and trees and glass. The tornado was over the school for less than one minute. In that time, it almost completely