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. |
Recently, a study was carried out to determine who was the greatest American president. Sixty-five presidential historians took part in it, and they judged the past forty-two American leaders based on ten leadership qualities, including public persuasiveness(信服), crisis leadership, management of the economy, moral leadership, and conduct of international relations. The historians also looked at administrative ability (管理能力), relations with Congress, ability to set goals, and the pursuit of equal justice for all. Finally, the experts took into consideration the historical period in which the president lived.
The historians chose Abraham Lincoln as American’s greatest president. He had also been named the greatest president in a similar study in 2000. Abraham Lincoln was the president who led the nation through the Civil War in the 1860s, and was able to unite it in the end. He also took the first steps to abolish(废除) slavery in America.
Edna Medford, a professor of history at Howard University in Washington, D.C., was an adviser on this study and the earlier one. She says Abraham Lincoln is seen to represent the values the nation most honors, such as truthfulness, moderation, and respect for human rights.
The historians put American’s first president, George Washington, second on the list, while Franklin D. Roosevelt, Theodore Roosevelt, and Harry Truman follow in that order. John F. Kennedy, the country’s first Roman Catholic president, is sixth on the list. Like Lincoln, Kennedy was murdered while in office.
Among recent presidents, Ronald Reagan was named the tenth best and Bill Clinton rated fifteenth, while the historians put former president George W. Bush at number thirty-six. His father, George H.W. Bush, did much better, being placed at number eighteen.We learn from the text that ___________.
| A．this is the second time Abraham Lincoln has been chosen as America’s greatest president |
| B．Edna Medford didn’t take part in the study conducted in 2000 |
| C．George H.W. Bush was thought to have done worse in office than George W.Bush |
| D．Harry Truman was rated the fourth-best president by the study |
Which of the following belong to the ten leadership qualities considered?
a. Being able to persuade the public.
b. Taking effective measures during a financial crisis.
c. Balancing home life and career.
d. Pursuing equal justice for all.
| A．a,b,c | B．b,c,d | C．a,b,d | D．a,c,d |
Who is rated worst among the following four presidents?
| A．John F. Kennedy | B．George W. Bush |
| C．Bill Clinton | D．George Washington |
The text is mainly about ________.
| A．the ten qualities a great president needs |
| B．how Abraham Lincoln improved the country |
| C．the values the American nation honors most |
| D．a study of American presidents |
Have you ever played the video dance game? Now such games are used to help lose weight!
Like many other teenage boys, Jones loved sports. But at 5 feet, 175 pounds, he found his weight a trouble. His doctor wanted him to lose 50 pounds so that he may catch up with the football game by the end of summer.
Jones chose the popular dance Revolution video game at home to increase his activity. He had lost about 10 pounds by changing his diet. Now, after two weeks playing the game, he has lost another 10!
In West Virginia, 43% of the nearly 6,000 children examined for heart disease risk were considered over-weighted; more than 25% were too fat. “we are in a crisis of childhood obesity not only in West Virginia but in America,” said a researcher.
Researchers are looking at the potential for improving effects by using the game. A teacher in West Virginia has been using the video game in her classes since last fall. She reported that the game does improve heart health as well as eye-hand coordination, and her students take the video game as a great alternative to jumping rope or ball games.
The US Education Department is putting the game in 20 schools to control childhood obesity. Well, are you going to try such a game to dance away your extra weight?Jones’ main problem was that .
| A．he was too short |
| B．he was over-weighted |
| C．he lacked the skill in football |
| D．he didn’t keep a healthy diet |
The underlined word means .
| A．being unfriendly | B．being unhappy |
| C．being unhealthy | D．being overweight |
It can be learned that .
| A．in West Virginia 25% of the children were too fat |
| B．after playing the game, Jones has lost weight |
| C．the teacher is a failure in using the video game |
| D．the US Education Department is promoting the game all over the country |
The most suitable title for the passage is .
| A．Dance Away Your Weight |
| B．Play the Video Dance Game |
| C．Solve the Problem of Obesity |
| D．A Magic Video Dance Game |
Babysitter Wanted
I am seeking a babysitter for my 6-month-old son. A few hours on Saturdays and Sundays to help me and then additional times as needed. Applicant should be over 18, responsible, loving, warm, and have experience in caring for babies. The pay is $ 10 an hour.
If this sounds like a good fit for you, please reply to: rebecharv @ aol.com or call 800-4964. It is urgent!
Office Manager wanted
Our company is looking for a full-time manager to run the business. Strong skills and some experience are needed in organization and business management.Also, he or she should be familiar with computer.
Please send your resume to jim @ californiaaquatics. com or call 800-6978 to apply.
Waiter/ Waitress wanted
Specialty Restaurant is looking for an experienced waiter/waitress. A knowledge of wines and experience in dining are necessary. Must work well under pressure and understand the basics of fine dining and customer service.
If you're interested, please contact us at job-tkupe 1329358152 @ craigslist. Org to apply.
This is a part-time job. Please, no phone calls about this job!
Office Cleaner Wanted
Looking for Part-time work? A position available in the Mississauga area! Part-time 4 hours per day from 10:00 a.m.-2:00 p.m.
Some experience is necessary. Pay: $15 per hour.
Reply to: job-p3b7u-1365632206 @ craigslist.org or call 800-8197The position of a(n) ___________ is full-time job.
| A．babysitter | B．office manager |
| C．waiter/ waitress | D．office cleaner |
What can we learn from the passage?
| A．The office cleaner has to work three hours each day. |
| B．One can apply for a waiter or waitress by telephone. |
| C．Experience is necessary for all these four jobs. |
| D．A babysitter earns $5 more than an office cleaner per hour. |
In which column can we read these messages in the newspaper?
| A．Advertising | B．News |
| C．Entertainment | D．Sports |
Koalas remind people of teddy bears. They have thick fur and large ears. Their broad, flat nose makes them look cute, similar to teddy bears. In fact koalas aren’t cute. They have sharp teeth and very sharp claws! Koalas are marsupials. This means the mother carries her baby in a pocket while it develops, similar to a kangaroo. The baby koala lives in its mother’s pocket for the first six months of its life.
The name “koala” comes from a native Australian word that means “no drink”. The koalas get almost all their water from the eucalyptus(桉树) leaves they eat. That’s where they get their food too. Koalas eat only eucalyptus leaves, and only the leaves of certain eucalyptus trees. The eucalyptus trees are where the koalas live. It’s also where they sleep. Koalas sleep about nineteen hours a day!
Why do they sleep so much? Some people think it’s because they’re lazy. But koalas aren’t lazy. They sleep so much because there isn’t much nutrition (营养) in eucalyptus leaves. Koalas store hardly any fat, so they must save their energy. One way to do this is to move slowly and sleep a lot.
After a day of sleeping they like to move around and eat just after sunset. They live alone most of the time. Koalas are very protective of their trees. If a koala sees another koala eating in its favorite tree, it might tell the other koala to leave by “barking” at it. Koalas do “talk” to each other. Besides barks, the males make a deep grunting sound. The mothers and babies talk in soft clicking sounds. If they get scared they may scream like a baby.According to the article, how are koalas and kangaroos alike?
| A．They both have thick fur. |
| B．They both have sharp teeth. |
| C．They both eat eucalyptus leaves. |
| D．They both carry their young in a pocket. |
The word “koala” comes from a word that means ________.
| A．no drink | B．moving slowly |
| C．large ears | D．barking loudly |
Why do koalas sleep a lot?
| A．Their babies need to get much rest. |
| B．They get tired from playing so much. |
| C．Their food does not give them much energy. |
| D．They do not like to be awake when it is warm. |
If an adult koala screams like a baby, he may get ________.
| A．worried | B．hungry | C．scared | D．sleepy |
The baby is just one day old and has not yet left hospital. She is quiet but alert (警觉) . Twenty centimeters from her face researchers have placed a white card with two black spots on it. She stares at it carefully. A researcher removes the card and replaces it by another, this time with the spots differently spaced. As the cards change from one to the other, her gaze (凝视) starts to lose its focus — until a third, with three black spots, is presented. Her gaze returns she looks at it for twice as long as she did at the previous card. Can she tell that the number two is different from three, just 24 hours after coming into the world?
Or do newborns simply prefer more to fewer? The same experiment, but with three spots shown before two, shows the same return of interest when the number of spots changes. Perhaps it is just the newness? When slightly older babies were shown cards with pictures of objects (a comb, a key, an orange and so on), changing the number of objects had an effect separate from changing the objects themselves. Could it be the pattern that two things make, as opposed to (而非) three? No again. Babies paid more attention to squares moving randomly on a screen when their number changed from two to three, or three to two. The effect even crosses between senses. Babies who were repeatedly shown two spots became more excited when they then heard three drumbeats than when they heard just two; likewise (同样地) when the researchers started with drumbeats and moved to spots. Babies are sensitive to the change in______.
| A．the size of cards |
| B．the colour of pictures |
| C．the shape of patterns |
| D．the number of objects |
Why did the researchers test the babies with drumbeats?
| A．To reduce the difficulty of the experiment. |
| B．To see how babies recognize sounds. |
| C．To carry their experiment further. |
| D．To keep the babies’ interest. |
Where does this text probably come from?
| A．Science fiction. | B．Children’s literature. |
| C．An advertisement. | D．A science report. |
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