游客
题文

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.
科目 英语   题型 阅读理解   难度 中等
登录免费查看答案和解析
相关试题

Last week, while visiting my dad with my daughter, we went to a restaurant for dinner. When we were seated, my dad asked the waitress if there were any soldiers eating at the restaurant. Then waitress said there was a soldier having dinner with his friend. My dad told the waitress to tell the soldier and his friend that their dinner was paid for! He also said that he did not want to be known as the benefactor(施主).
Then waitress later commented on my dad’s thoughtful behavior saying that she had never seen anything like this before. At a local college, she had studied opera and so she used this to thank my dad by performing a piece from The Pearl Fisherman. Her voice brought me to tears because it sounded perfect!
After a while, the soldier appeared at our table (I don’t know how he knew my dad paid the bill for him.) and said that he would be sent to the front the next morning and that he could not leave this country without saying “thanks” to my dad. My dad replied that it was he who wanted to say “thanks”. They shook hands as the soldier left.
Before we left, the waitress came by again. She did a magic show as another way to show her “thanks” to my dad. Her show was really great. My dad left her a note with email address asking for her next performance time in addition to a $ 50 tip.
Everyone witnessed something exemplary(可作榜样的) in the human spirit that night. I can only hope to see more of this in the future.
What did the soldier do in response to the author’s father’s kindness?

A.He gave something to author’s dad.
B.He gave a big tip to the waitress.
C.He said thanks to the author’s dad in person.
D.He did a magic show for the author and her father.

The author considered her father’s action to be ____.

A.funny B.understandable
C.worthless D.honorable

Their passage mainly tells us that we should ____.

A.learn to be grateful to others
B.find ways to thank others
C.try to learn from each other
D.respect soldiers and waitresses

Thirteen, for me, was a challenging year. My parents divorced and I moved to a new town with my father, far from my old family and friends. I was terribly lonely and would cry myself to sleep each night. To ease my sadness, my father purchased an old horse for me at a local auction. I named him Cowboy.
Cowboy was without a doubt the ugliest horse in the world. But I didn’t care. I loved him beyond all reason. I joined a riding club and suffered rude comments and mean snickers about Cowboy’s looks. I never let on about how I felt, but deep inside, my heart was breaking. The other members rode beautiful, registered horses.
When Cowboy and I entered the events where the horse is judged on appearance, we were quickly shown the gate. No amount of preparation and love would turn Cowboy into a beauty. My only chance to compete would be in the speed events. I chose the jumping race.
One girl named Becky rode a big brown horse in the race events. She always won the blue ribbons. Needless to say, she didn’t feel threatened when I competed against her at the next show. She didn’t need to. I came in next to last.
The stinging memory of Becky’s smirks made me determined to beat her. For the whole next month I woke up early every day and rode Cowboy five miles to the arena (赛马场). We practiced running and jumping for hours in the hot sun and then I would walk Cowboy home totally exhausted. All of our hard work didn’t make me feel confident by the time the show came. I sat at the gate and sweated it out while I watched Becky and her horse charge through the course and finish in first place.
My turn finally came. I put on my hat, rubbed Cowboy’s neck and entered the arena. At the signal, we dashed toward the first fence, jumped it without trouble and raced on to the next one. Cowboy then flew over the second, third and fourth fences like a bird and I turned him toward the finish line. As we crossed the line the crowd was shocked into silence. Cowboy and I had beaten Becky and her fancy horse by two seconds!
I gained much more than a blue ribbon that day. At thirteen, I realized that no matter what the odds, I’d always come out a winner if I wanted something badly enough to work for it.
The underlined expression "shown the gate" (paragraph 3) most probably means ______.

A.told how to enter the arena
B.shown how to make the horse beautiful
C.removed from the competition early
D.told to enter the timed-speed events

When the final race finished, nobody cheered because .

A.the audience didn’t like Cowboy
B.people envied the writer
C.the win was unexpected
D.the writer bad run out of time

Why was the writer not confident of victory?

A.He was an inexperienced rider.
B.He had not practiced enough.
C.He believed he was unpopular with the crowd.
D.He thought his horse wasn’t as good as the others.

What did the writer learn from his experience?

A.Life can sometimes be unfair.
B.Anything is possible if one tries hard enough.
C.A positive attitude will bring success.
D.One should not make judgments based on appearance.

As a junior at McGill University, Doreen Sykora had a difficult time when she first began college. She said, “I was always well prepared for my examinations. But when I go into class to take the exam, I would fall apart. I could just blank out because of nervousness and fear.” Hitoshi Sakamoto, an anthropology(人类学) student at Temple University in Tokyo reports similar experiences.
These two young students were experiencing something called test anxiety. Because a student worries and is stressed about a test, his or her mind does not work as well as it usually does. The student cannot write or think clearly because of the severe tension and nervousness.
Now there are special university courses to help students. In these courses, advisors and psychologists try to help students by teaching them to manage test anxiety. Such a course helps students learn to live with stress and not fail because of it. First students take a practice test to measure their worry level. If the tests show that their stress level is high, the students can take a short course to manage the fear. These courses teach students how to relax their bodies. They get training to become calm in very tense situations. By controlling their nervousness, they can let their minds work more easily. Learned information then comes out without difficulty on a test.
Doreen Sykora saw immediate results after taking such a course. She now has enthusiasm about the relaxation methods. “Mostly, what I do is imagine myself in a very calm place. Then I imagine myself picking up a pencil. I move slowly and carefully. I breathe easily and let all the tension out. With each breath, more worry leaves me. It really works too. My grades have improved greatly! I’m really doing well at McGill now. This relaxation method works not only on examinations, but it has improved the rest of my life as well.”
For Hitoshi in Tokyo, the results were much the same. He is enjoying school a lot more and learning more.
What is the similarity between Doreen Sykora and Hitoshi Sakamoto?

A.They both had experiences of test anxiety.
B.They failed in all the examinations.
C.They are students from the same university.
D.They both had the same poor studying habits.

The underlined phrase “blank out” in Paragraph 1 refers to “_______.”

A.get an extra paper
B.be unable to think clearly
C.lose interest in the exam
D.refuse to take the exam

What’s the purpose of some special university student-help courses?

A.To learn more knowledge about test anxiety.
B.To show a stress level experienced by students.
C.To help students to reduce test anxiety.
D.To have a better understanding of test anxiety.

One of the most traditional features of American culture is to respect the self-made man — the man who has risen to the top through his own efforts, usually beginning by working with his hands. While the leader in business or industry or the college professor occupies a higher social position and commands greater respect in the community than the common laborer or even the skilled factory worker, he may take pains to point out that his father started life in America as a farmer or laborer of some sort.
This attitude toward manual(体力的) labor is now still seen in many aspects of American life. One is invited to dinner at a home that is not only comfortably but even luxuriously (豪华地) furnished and in which there is every evidence of the fact that the family has been able to afford foreign travel, expensive hobbies, and college education for the children; yet the hostess probably will cook the dinner herself, will serve it herself and will wash dishes afterward, furthermore the dinner will not consist merely of something quickly and easily assembled from contents of various cans and a cake or a pie bought at the nearby bakery. On the contrary, the hostess usually takes pride in careful preparation of special dishes. A professional man may talk about washing the car, digging in his flowerbeds, painting the house. His wife may even help with these things, just as he often helps her with the dishwashing. The son who is away at college may wait on table and wash dishes for his living, or during the summer he may work with a construction gang on a highway in order to pay for his education.
From the second paragraph of this passage we can find that _______.

A.Hagner busies herself by following a trend
B.Hagner doesn't spend much time on her full-time job
C.Hagner is interested in sports and music
D.Hagner wastes much time helping her children's lessons

British parents, as the writer described in this passage, _______.

A.treat their children as sports players
B.give their children little time to develop freely
C.bring up their children in a simple way
D.pay no attention to their children's lessons

The writer's opinion about after-school clubs is that ________.

A.activities in the country are too competitive
B.children should attend four clubs at a time
C.clubs should have more subjects for school children
D.some clubs result in competitive pressures

The last paragraph tells us that in Britain _______.

A.parents used to take their children to every club
B.parents have all benefited from children’s clubs
C.parents used to be wise on how to raise children
D.parents have come to know the standard of education

Recently Cathy Hagner sadly finds that life for her and her three children is set to permanent(永久的)fast-forward.
Their full school day and her job as a lawyer's assistant are busy enough. But Hanger also has to take the two boys to soccer or hockey or basketball while dropping off her daughter at piano lessons or Girl Scout Club.
Often, the exhausted family doesn't get home until 7 pm. There is just time for a quick supper before homework. In today's world, middle-class American and British parents treat their children as if they are competitors racing for some finishing line.
Parents take their children from activity to activity in order to make their future bright. It seems that raising a genius has become a more important goal than raising a happy and well-balanced child.
“Doctors across the country are reporting a growing number of children suffering from stomachaches and headaches due to exhaustion and stress,” says child expert William Doherty of the University of Minnesota.
Teachers are dealing with exhausted kids in the classroom. It's a very serious problem. Many children attend after-school clubs by necessity. But competitive pressures also create an explosion of activities. They include sports, language, music and math classes for children as young as four.
“There is a new parenting trend under way which says that you have to tap all your child’s potential at a young age; otherwise you will let him down,” says Terry Apter, a Cambridge-based child and adolescent psychiatrist(青少年精神病专家).
“It isn't entirely new: there have always been pushy parents. But what was previously seen as strange behavior is now well accepted.”
From the second paragraph of this passage we can find that _______.

A.Hagner busies herself by following a trend
B.Hagner doesn't spend much time on her full-time job
C.Hagner is interested in sports and music
D.Hagner wastes much time helping her children's lessons

British parents, as the writer described in this passage, _______.

A.treat their children as sports players
B.give their children little time to develop freely
C.bring up their children in a simple way
D.pay no attention to their children's lessons

The writer's opinion about after-school clubs is that ________.

A.activities in the country are too competitive
B.children should attend four clubs at a time
C.clubs should have more subjects for school children
D.some clubs result in competitive pressures

The last paragraph tells us that in Britain _______.

A.parents used to take their children to every club
B.parents have all benefited from children’s clubs
C.parents used to be wise on how to raise children
D.parents have come to know the standard of education

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号