BEIJING - A research team led by Chinese scientists have discovered dietary modulation of gut microbiota（膳食干预肠道菌群）can alleviate both genetic and simple obesity in children.
The findings of the team, led by Zhao Liping with Shanghai Jiaotong University, Yin Aihua with the Guangdong province children's hospital, and Tang Huiru with Chinese Academy of Sciences, have been published on EBioMedicine, a renowned medical journal co-sponsored by Cell and The Lancet in July.
The team identified bacterial genomes specifically for producing obesity-related metabolites（代谢物）, and said an improved gut microbiota can significantly help to treat genetic obesity such as Prader-Willi Syndrome (PWS).
Beginning in childhood, PWS affected kids develop an insatiable appetite, leading to chronic overeating and obesity.
The scientists used a diet therapy with beneficial gut bacteria on trial patients and found considerable diminished appetite, weight loss and improved health conditions on the patients.
The paper concluded dysbiosis（失调）of gut microbiota is highly related with both genetic and simple obesity in children, implicating dietary modulation of gut microbiota a potentially effective treatment method.
Which of the following factors contributes to child obesity ?
| A．dietary modulation of gut microbiota |
| B．beneficial gut bacteria |
| C．an improved gut microbiota |
| D．dysbiosis of gut microbiota |
Which can replace the underlined word “diminished”？
| A．unsatisfied | B．increased |
| C．decreased | D．good |
Where is the passage extracted?
| A．Medicine book | B．Science book |
| C．Doctor’s instructions | D．News report |
Which might be the best title for the passage?
| A．Chinese scientists discover treatment to child obesity. |
| B．The reasons for genetic obesity in children has been found. |
| C．Obesity-related research has been done by Chinese scientists. |
| D．An effective treatment to obesity has been found. |
Last year, I lived in Chile for half a year. I lived with a Chilean family and had the responsibilities of any Chilean teenager. I had good days and bad days I didn’t understand.
Chuquicamata, my host community, is a mining camp. When I arrived there, I was scared. It was so different from what I was used to. There were lots of dogs on the streets, and there was no downtown, few smoothly paved streets, and little to do for entertainment. Rain was not seen very often, earthquakes and windstorms were frequent.
I had studied Spanish for two and a half years and was always one of the best students in my class. But in my first week in Chile I was only able to communicate and needed one person to whom I could explain my shock. I couldn’t speak the thoughts in my head and there were so many.
Most exchange students experience this like me. Culture shock presents itself in everything from increased aggression (敌对心理) towards the people to lack of appetite. I was required to overcome all difficulties.
As time passed, everything changed. I began to forget words in English and to dream in Spanish and love Chilean food. I got used to not depending on expensive things for fun. Fun in Chuquicamata was being with people. And I took math, physics, chemistry, biology, Spanish, art, and philosophy.
But the sacrifices were nothing compared to the gain. I learned how to accept and to succeed in another culture. I now have a deeper understanding of both myself and others.The author came to Chile last year with the purpose of ________.
| A．paying a visit to Chile as a tourist |
| B．experiencing Chilean life as a teacher |
| C．studying Chilean culture as a college student |
| D．studying knowledge as an exchange student |
On arriving in Chile, why did the author feel frightened?
| A．Because he did not know how to get along with the local people. |
| B．Because it was full of dangers like earthquakes and windstorms. |
| C．Because its living conditions were worse than what he was used to. |
| D．Because it was not convenient for him to shop there. |
In the first week in Chile the author ________.
| A．was not used to eating Chilean food |
| B．had some friends to have a chat with |
| C．couldn’t communicate with people |
| D．couldn’t express his thoughts in English |
What did the author most probably think of his life in Chile?
| A．Wonderful and worthwhile | B．Difficult but meaningful |
| C．Difficult and meaningless | D．Boring and disappointing |
According to the passage, which of the following statements about Chile is TRUE?
| A．its official language is Spanish and English. |
| B．It is a developing country without foreign students. |
| C．It seldom rains and natural disasters often happen. |
| D．Most Chileans are not friendly to foreigners. |
In the US and Britain, the slogan around colleges was “Save water. Shower with a friend.” Now, Wuhan University has come up with another system for the campus bathhouse. It charges students for the amount of time in a shower. Before entering the bathhouse, students pay for the amount of time they want in the shower with cash or their student ID card. The clock starts ticking the minute the tape is turned on. It pauses when a button is pressed for soap. An integrated circuit (IC) card reader at each tap shows the time. No money, no water. The benefits of the new system can be seen with the old system, which charged 1 Yuan for each person regardless of time in the shower. The university used about 320 tons of water daily under the old system, but only 160 tons now.
Many students use the new system but opinions on it are divided. Some students say it is bad because bathing had become a sort of race. Many people using it for the first time are not sure how long they need to shower. Some might be embarrassed if their time is up and they’re still covered in soap. They have to ask the bathhouse worker to help them buy extra time.
“It’s a flaw in the system that you can not buy extra time on the ID card,” said Ren, a freshman in Wuhan University. The university is also considering some students’ suggestions that they be allowed to pay after they’ve finished the shower. Not surprisingly, some are complaining about losing the hour shower. But many students say the move helps them develop a water-saving sense.
Without the time limits, most students tended to shower for 30 to an hour in the bathhouse.
Some even used the hot water to wash their clothes. “In my experience, 10—20 minutes is enough,” said Dai Zhihua, a third-year student who usually takes 8 minutes.
A similar system has been installed in other universities. Shanghai Normal University introduced it at its Fengxiang Campus in September. The bathing fee there is 0.2 Yuan per minute. One male student responded by setting a record with a two-minute shower.According to the passage, which of the following is NOT true?
| A．Students pay for the amount of time they want in the shower. |
| B．The clock times all through while the student is bathing except when the bather paused for soap. |
| C．If money runs out, there will be no water. |
| D．Having finished bathing, the student has to pay for it. |
The underline word “flaw” (Paragraph 3) most probably means __________.
| A．fault | B．advantage | C．pity | D．perfection |
Since the new system has performed, __________ of water can be saved.
| A．a quarter | B．one third | C．one half | D．two thirds |
It can be inferred from the passage that __________.
| A．The new operation can raise students’ environmental awareness. |
| B．the new operation can solve the water crisis. |
| C．a similar operation has been set in other universities. |
| D．The university has saved a lot of water by using the new system. |
In which column can you find this passage?
| A．People. | B．Society. | C．Campus Life. | D．Lifestyle. |
Five years ago, David Smith wore an expensive suit to work every day. “I was a clothes addict,” he jokes. “I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled.” Today David wears casual clothes—khaki pants and sports shirt—to the office. He hardly ever wears a necktie. “I’m working harder than ever,” David says, “and I need to feel comfortable.”
More and more companies are allowing their office workers to wear casual clothes to work. In the United States, the change from formal to casual office wear has been gradual. In the early 1990s, many companies allowed their employees to wear casual clothes on Friday, but only on Friday. This became known as “dress-down Friday” or “casual Friday”. “What started out as an extra one-day-a-week benefit for employees has really become an everyday thing.” said business consultant Maisly Jones.
Why have so many companies started allowing their employees to wear casual clothes? One reason is that it’s easier for a company to attract new employees if it has a casual dress code. “A lot of young people don’t want to dress up for work,” says the owner of a software company, “so it’s hard to hire people if you have a conservative dress code.” Another reason is that people seem happier and more productive when they are wearing comfortable clothes. In a study conducted by Levi Strauss Company, 85 percent of employers said that they believe that casual dress improves employee morale（士气）. Only 4 percent of employers said that casual dress has a negative effect on productivity. Supporters of casual office wear also argue that a casual dress code helps them save money. “Suits are expensive, if you have to wear one every day,” one person said. “For the same amount of money, you can buy a lot more casual clothes.” David Smith refers to himself as having been “a clothes addict,” because __________.
| A．he often wore khaki pants and a sports shirt |
| B．he couldn’t stand a clean appearance |
| C．he wanted his clothes to look neat all the time |
| D．he didn’t want to spend much money on clothes |
David Smith wears casual clothes now, because __________.
| A．they make him feel at ease when working |
| B．he cannot afford to buy expensive clothes |
| C．he looks handsome in casual clothes |
| D．he no longer works for any company |
According to this passage, which of the following statements is FALSE?
| A．Many employees don’t like a conservative dress code. |
| B．Comfortable clothes make employees more productive. |
| C．A casual clothes code is welcomed by young employees. |
| D．All the employers in the U.S. are for casual office wear. |
According to this passage, which of the following statements is TRUE?
| A．Company workers started to dress down about twenty years ago. |
| B．Dress-down has become an everyday phenomenon since the early 1990s. |
| C．“Dress-down Friday” was first given as a favor from employers. |
| D．Many workers want to wear casual clothes to impress people. |
In this passage, the following advantages of casual office wear are mentioned except
__________.
| A．saving employees’ money | B．making employees more attractive |
| C．improving employees’ motivation | D．making employees happier |
Anger is good for you, as long as you control it, according to new psychology research. A new study from Carnegie Mellon University shows anger may help people reduce the negative impacts of stress and help you become healthier.
“Here getting emotional is not bad for you if you look at the case of anger,” said Jennifer Lerner of Carnegie Mellon. “The more people display anger, the lower their stress responses.”
Lerner studied 92 UCLA students by asking them to count back from 6,200. They must say out loud every thirteenth number. Researchers disturbed them by asking them to count faster or ask them other questions. If they made any mistakes, they had to restart from the very beginning. Many students felt depressed about making so many mistakes or got angry.
Lerner used a hidden video camera and recorded all their facial expressions during the test. The researchers describe their reactions as fear, anger and disgust.
Other researchers recorded the students’ blood pressure, pulse and production of a high-stress hormone（荷尔蒙）called cortisol. People whose faces showed more fear during the experiment had higher blood pressure and higher levels of the hormone. Both can have lasting effects such as diabetes（糖尿病）, heart disease, depression and extra weight gain.
When people feel fear, negative impacts increase, but when they get angry, those negatives go down, according to the study.
“Having that sense of anger leads people to actually feel some power in what otherwise is a maddening（令人发狂的）situation,” Lerner said.
Lerner previously studied Americans’ emotional response to the 9/11 terrorist attacks two months after the incident. She found people who reacted with anger were more optimistic. These people are healthier compared with those who were frightened during the event. So in maddening situations, anger is not a bad thing to have. It’s a healthier response than fear. What is the story mainly about?
| A．The findings of new psychology research. |
| B．What you can do with anger in certain cases. |
| C．Different effects produced by anger and fear. |
| D．Healthier responses in maddening situations. |
Which statement will Jennifer Lerner agree with?
| A．It’s better to be angry than to be frightened. |
| B．Different reactions reflect different outlooks on life. |
| C．Don’t control your anger and it makes you powerful. |
| D．Pessimistic people are generally healthier than optimistic people. |
What does the underlined word “both” refer to according to the passage?
| A．Fear and anger. | B．Blood pressure and pulse. |
| C．Blood pressure and cortiso1. | |
| D．Higher blood pressure and higher levels of the hormone. |
In what ways can anger be beneficial to people?
| A．By showing their optimistic side. | B．By reducing their stress. |
| C．By reducing high blood pressure. | D．By taking the place of fear. |
The researchers irritated（激怒）the students by __________.
| A．recording their performance secretly |
| B．asking them to count to 6, 200 again and again |
| C．disturbing them and making them start all over again |
| D．criticizing them when they made mistakes |
Everybody has one of those days when everything goes wrong. This is what happened to Harry.
He got up one morning very late because he had forgotten to wind up his alarm clock（闹钟）. He tried to shave（刮脸）quickly and cut himself. When he got dressed he got blood all over his clean shirt, so he had to find another one. The only other shirt that was clean needed ironing（熨）, so he ironed it. While he was ironing it, there was a knock at the door. It was the man to read the electricity meter（表）. He showed him where the meter was, said good-bye and found that the iron had burnt a hole in his shirt. So he had to wear the one with the blood on it after all. By this time it was very late, so he decided he couldn’t go to work by bus. He telephoned for a taxi to take him to work. The taxi arrived and Harry got in and began to read the newspaper.
In another part of the town, a man had killed a woman with a knife and was seen to run away in a taxi. When Harry’s taxi stopped outside his office, a policeman happened to be standing there. He saw the blood on Harry’s shirt, and took him to the police station. He was kept till 3 o’clock in the afternoon before the police were sure that he was not the man they wanted. When he finally arrived at the office at about four, his boss took a look at him and told him to go away and find another job.Harry had __________.
| A．a lucky day | B．an unlucky day | C．a busy day | D．a good day |
Put the following sentences into correct order according to the passage.
a. The man who read the electricity meter came.
b. Harry ironed his shirt.
c. Harry got blood all over his clean shirt.
d. There was a knock at the door.
e. Harry wore the shirt with blood on it.
| A．a, b, c, d, e | B．b, a, d, c, e | C．b, a, c, d, e | D．c, b, d, a, e |
Why did Harry wear the shirt with blood on it?
| A．The iron had burnt a hole in his clean shirt. |
| B．The only other needed ironing. |
| C．He had only one shirt. |
| D．He cut himself and got blood all over his shirt. |
Harry was taken to the police station because __________.
| A．his taxi stopped outside his office and a policeman happened to be there |
| B．there was blood on his shirt and he was in a taxi |
| C．a man killed a woman with a knife |
| D．the murderer（杀人犯）was seen to run a away in a taxi |
His boss told him to go away and find another job because __________.
| A．he had been kept by the police | B．there was blood on his shirt |
| C．he was late for work | D．he had killed a woman |
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