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Two years ago, a team of linguists plunged into the remote hill country of northeastern India to study little-known languages, many of them unwritten and in danger of falling out of use.On average, every two weeks one of the world’s recorded 7,000 languages becomes extinct, and the expedition was seeking to document and help preserve the endangered ones in these isolated villages.At a rushing mountain river the linguists entered the tiny village of Kichang. They expected to hear the people speaking Aka, a fairly common tongue in that district. Instead, they heard a language that sounded as different from Aka as English does from Japanese. After further investigation, leaders of the research announced last week the discovery of a “hidden” language, known locally as Koro, completely new to the world outside these rural communities.When the three researchers reached Kichang, they went door to door asking people to speak their native tongue. The people live by raising pigs and growing oranges and rice. They share a subsistence economy and a culture with others in the region who speak Aka, or Miji, another somewhat common language. On the veranda(阳台) at one house, the linguists heard a young woman named Kachim telling her life story in Koro. She was sold as a child bride, was unhappy in her adopted village and had to overcome hardships before eventually making peace with her new life.The linguist recorded Kachim’s narrative in Koro, and an Indian television crew had her repeat it in Hindi. This not only enabled the researches to understand her story and her language but called attention to the cultural pressures threatening the survival of such languages, up against national languages dominant in schools, commerce and mass media.In the last Speakers: The Quest to Save the World Most Endangered languages, published last month by National Geographie Books, Dr. Harrien noted that Koro speaker “we thoroughly mixed in with local peoples and number perhaps no more than 800”. Moreover, linguist are not sure how Koro has survived this long as a viable language.By contrast, the Aka people number about 10,000 living in close relations with Koro speakers in a district of the state of Anunschal Prodesh, where at least 120 languages are spoken. Dr. Andenson said the coexistence of separate languages between two integrated groups that do not acknowledge an ethnic difference between them is highly unusual.The effort to identify “bot spot of threaten languages” the linguists said, is critical in making decisions to preserve and enlarge the use of such tongues which are treasure of a people’s history and culture.31. Why did a group of linguists visit the small village of northeastern India?32. Which of the following is true about the language called Koro by native residents?33. What’s the important purpose of recording Kachim’s story in Koro and then translating it into Hindi?34. In order to preserve and enlarge the use of the threatened languages in the world, it is necessary to（）.35. Which of the following is the best title for this passage?

Broccoli (西兰花) is high in vitamins and minerals Extracts of broccoli and banana may help in fighting stomach problem, research suggests, Laboratory studies show fibres from the vegetables may boost the body’s natural defenses against stomach infections.Trials are under way to see if they could be used as a medical food for patients with Crohn’s disease. Crohn’s disease is an inflammatory bowel disease that causes symptoms such as abdominal (腹部) pain. It affects about one in 1,000 people, and is thought to be caused by a mixture of environmental and genetic factors.The condition is common in developed countries where diets are often low in fibre and high in processed food, Scientists at the University of Liverpool looked at how roughage from vegetables influenced the passage of harmful bacteria through cells inside the gut. They found that fibres from the plantain, a type of large banana, and broccoli were particularly beneficial. But a common stabilizer added to processed foods during the manufacturing process had the opposite effect.Dr. Barry Campbell, from the University of Liverpool, said: “This research shows that different dietary components can have powerful effects on the movement of bacteria trough the bowel. We have known for some time the general health benefits of eating plantain and broccoli, which are both high in vitamins and minerals, but until now we have not understood how they can boost the body’s natural defenses against infection common in Crohn’s patients. Our work suggests that it might be important for patients with this condition to eat healthily and limit their intake of processed foods.”The research published in the journal Gut and carried out in collaboration with experts in Sweden and Scotland, investigated special cells, called M-cells, which line the gut and ward off invading bacteria. Work was carried out in laboratory-grown cells and tissue samples from patients undergoing surgery for stomach problems. Clinical trials are now underway in 76 Crohn’s patients to find out whether a medical food containing plantain fibres could help keep the disease at bay. “It may be that it makes sense for sufferers of Crohn’s to take supplements of these fibres to help pervert deterioration,” said Professor Jon Rhodes of the University of Liverpool.Commenting on the study, a spokesperson for Crohn’s and Colitis, which represents patients with inflammatory bowel disorders ,welcomed further insight into how the gut combats bacteria like E.Coll. “Knowledge of the M-cell role offers a more detailed explanation as to why a healthy diet can improve the health and well being for people with Crohn’s disease and healthy individuals alike,” she said.26. What is the main idea of this passage?27. Why do people in developed countries suffer most from Crohn’s disease?28. According to Dr. Barry Campbell what is still NOT understood about eating plantain?29. What is the aim of trials on Crohn’s sufferers?30. What did experts say on the discovery of M-cells?

As is known to all,（）wonderful sense of humor.

Petrol is refined from the（）oil we take out of the ground.

People are fascinated to see that the magician made a big and tall deer（）in a flash.

A good citizen is expected to（）to the law of his country.

Young children have a limited attention（）and can’t focus on one activity for long.

The destruction of these treasures are a loss for mankind that no amount of money could（）.

I would have come sooner, but I （）that they were waiting for me.

The （）for speeding is a fine of one hundred and fifty dollars.

Deserts and high mountains have always been a （）to the movement of people from place to place.

As is known to all, the Pope is the（）leader of the Rome Catholic Church.

As I was just getting familiar with this job, I had（）to ask my boss.

He said he could not come because he（）a meeting.

The British people are not so familiar with different cultures and other ways of doing things, （）is often the case in other countries.

In digital electronics, signals are broken down into thousands, maybe millions,（）, which are encoded as zeros and ones.

I tried phoning her office, but I couldn’t（）.

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