PALO AITO, California—“Switching off the television may help prevent children from getting fatter—even if they do not change their diet or increase the amount they exercise,” US researchers said last week.
A study of 192 third and fourth grades, generally aged eight and nine, found that children who cut the number of hours spent watching television gained nearly two pounds(0.91 kg) less over a one-year period than those who did not change their television diet.
“The findings are important because they show that weight loss can only be the result of a reduction in television viewing and not any other activity,” said Thomas Robinson, a pediatrician(儿科专家) at Stanford University.
“American children spend an average of more than four hours per day watching television and videos or playing games, and rates of childhood being very fat have doubled over the past 20 years,” Robinson said.
In the study, presented this week to the Pediatric Academic Societies’ annual meeting in San Francisco, the researchers persuaded about 100 of the students to reduce their television viewing by one-quarter to one-third.
Children watching fewer hours of television showed a significantly smaller increase in waist size and had less body fat than other students who continue their normal television viewing, even though neither group ate a special diet nor took part in any extra exercise.
“One explanation for the weight loss could be the children unstuck to the television may simply have been moving around and burning off calories,” Robinson said.
“Another reason might be due to eating fewer meals in front of the television. Some studies have suggested that eating in front of the TV encourages people to eat more,” Robinson added.The purpose of the first two paragraphs is ______.
| A．to report the time children spend watching TV |
| B．to show that more TV time leads to getting fatter |
| C．to tell us the best way to reduce weight |
D．to int roduce the background of the research |
According to the passage, the time American children usually spend on watching TV ____.
| A．is more than four hours a day | B．is less than four hours a day |
| C．doubled in the last twenty years | D．is more than on any other activities |
The time the 100 children spend on TV every day is about _______ in the study.
| A．a quarter of an hour | B．four hours | C．three hours | D．one hour |
Which of the following statements is TRUE according to the passage ?
| A．Weight increase owes to the result of a reduction in TV viewing. |
| B．The percentage of children getting fatter has doubled in the last 20 years. |
| C．Children usually eat less while watching TV. |
| D．Children usually eat nothing while watching TV. |
The main idea of the passage would be ______.
| A．less TV time helps reduce children’s weight |
| B．fewer meals is a must in reducing children’s weight |
| C．the less you eat, the thinner you will be |
| D．more exercise is of great benefit to reduce weight |
I would li
ke to tell you a story about my uncle Theo. He is my oldest uncle, a tall, thin, grey-haired man whose thoughts are always on learning and nothing else. He is quiet, gentle and absent-minded and with about as much sense as a child where money is concerned. Well, he applied a post in Camford University. It was a very good post and there were hundreds of candidates who applied for 
it, and about fifteen, including Theo, were asked to be interviewed.
Camford is a very small town; there is only one hotel in it, and it was so full that they had to put many of the candidates two in a room. Theo was one of these, and the man who shared the room with him was a self-confident fellow called Adams, about twenty years younger than Theo, with a loud voice, and a laugh that you could hear all over the hotel. But he was a clever fellow all the same and had a good post in Iscaiot College, Narkover. Well, the Dean, who was the head of the department of the University, and the committee interviewed all the candidates; and as a result of this interview, the number of the candidates was reduced to two, Uncle Theo and Adams. The committee couldn’t decide which of the two to take, so they decided to make their final choice after each of the candidates had given a public lecture in the college lecture-hall. The subject they had to speak on was “The Civilization of the Ancient Summerians”; and the lecture had to be given in three days’ time.
Well, for these three days Uncle Theo never left his room. He worked day and night at that lecture, writing it out and memorizing it, almost without eating or sleeping. 
Adams didn
’t seem to do any preparation at all. You could hear his voice and his laughter where he had a crowd of people around him. He came to his room late at night, asked Uncle Theo how he was getting on with his lecture, and then told him how he had spent the evening playing bridge, or at the music hall. He ate like a horse and slept like a log; and Uncle Theo sat up working at his lecture.
The day of the lecture arrived. They all went into the lecture hall and Theo and Adams took their seats on the platform. And then, Theo discovered, to his horror, that typewritten copy of his speech had disappeared! The Dean said they would call on the candidates on the alphabetical order, Adams first; and the despair in his heart, Theo watched Adams calmly take the stolen speech out of pocket and read it to the professors who were gathered to hear it. And how well he read it! Even Uncle Theo had to admit he couldn’t have read it nearly so eloquently himself, and when Adams finished there was a great burst of applause. Adams 
bowed and smiled, and sat down.
Now, it was Theo’s turn. But what could he do? He had put everything he knew into the lecture. His mind was too much upset to put the same thoughts in another way. With a burning face he could only repeat, word for word, in a low, dull voice, the lecture that Adams had spoken so eloquently. There was hardly any applause when he sat down.
The Dean and the committee went out to decide who the successful candidate was, but everyone was sure what their decision would be. Adams leaned across to Theo and patted him on the back and said, smilingly, “Hard luck, old fellow, but after all, only one of us could win”
Then the Dean and the committee came back, “Gentlemen”, the Dean said, “the candidate we have chosen is Mr. Hobdell.” Uncle Theo had won! The audience were completely taken by surprise, and the Dean continued, “ I think I ought to tell you how we arrived at the decision. We were all filled with admiration at the learning and eloquence of Mr. Adams. I was greatly impressed. But, you will remember, Mr. Adams read his lecture to us. When Mr. Hobdell’s turn came, he repeated that speech, word by word from memory, though, of course, he couldn’t have seen a line of it before. Now a fine memory is absolutely necessary for this post; and what a memory Mr. Hobdell must have! This is why we decided that Mr. Hobdell was exactly the man we wanted! ”
As they walked out of the room, the Dean came up to Uncle Theo, who was so confused but so happy that he hardly knew whether he was standing on his head or heels; and as he shook Theo’s hand he said, “Congratulations, Mr. Hobdell! But, my fellow, when you are on our staff, you must be more careful and not leave valuable papers lying about!”. Which of the followings best describes Uncle Theo?
| A．Good-mannered | B．Modest | C．Childish | D．Bookish |
What do we know about the post at Camford University?
A．The applicants ha d to sit for an examination. |
| B．There was much competition for the post. |
| C．The post requires a lot of teaching experience. |
| D．The post offered quite high salary. |
. Adams did not bother to do any preparation because______.
| A．he was quite familiar with the subject. |
| B．he knew the committee members well. |
| C．he had a well-thought-out plan. |
| D．he had full confidence in himself. |
When Uncle Theo’s turn came, _______.
| A．he felt so angry that he couldn’t see a word. |
| B．he felt so upset that he could not remember anything. |
| C．he had to put the same thoughts in another way. |
| D．he had to repeat the speech, word by word from memory. |
When the committee went out to make a decision, Adams _______.
| A．could not help feeling worried. |
| B．could hardly wait to show his joy. |
| C．felt sorry for Theo and tried to cheer him up. |
| D．felt ashamed and tried to chat with Theo. |
Theo became successful because _______.
| A．he had a better memory than Adams. | |
B．he was more experienced than Adams. |
C．the committee knew he was exactly the man they wanted. |
| D．the committee knew Adams had copied Theo’s speech. |
XI'AN - China's conservation work for the endangered crested ibis（朱鹮）is facing new challenges, including an increasing mortality rate due to inbreeding, and the conflict between the need to expand natural habitats and local communities' economic interests, bird experts have warned.
The crested ibis, once widespread in Japan, China, Russia and the Korean Peninsula, almost 
became extinct in the first half of the 20th century.
Before 1981, when seven crested ibis were accidentally found in Yangxian county, in Northwest China's Shaanxi province, academics thought the species had been extinct in China for almost 17 years.
Due to the huge effort put into species protection since 1981, the number of crested ibis in China has risen to an estimated 1,617, including 997 in the wild, the State Forestry Administration said at a meeting on crested ibis protection in Xi'an on Monday.
However, although the ibis population exceeds 1,000, the birds are still not free from the threat of extinction, said Fang Shengguo, director of the State Conservation Center for Gene Resources of Endangered Wildlife at Zhejiang University.
“Ornithologists used inbreeding in the early stages of protection so that numbers of the precious birds could increase quickly, but that method had conseque
nces,” Fang said.
"Studies have proved that as a result of inbreeding, crested ibis have the lowest genetic diversity of all endangered birds," Fan
g said.
"It means a high mortality rate and more physical defects for hatched chicks."
“The government should collect genetic information from all crested ibis and establish a genetic database as soon as possible, then design a scientific mating plan for the species,” Fang said.
So far, about 90 percent of crested ibis live in Shaanxi province, and fewer than 140 ibis live in three zoos in other parts of the country, including Beijing Zoo, according to Liu Dongping, an assistant researcher at the National Bird Banding Center of China, which is affiliated to the Chinese 
Academy of Forestry.
The bird has lost the ability to migrate, he said, adding that if an unexpected natural disaster occurred in Shaanxi province or an infectious disease spread through the area, the ibis population could be greatly reduced.
Experts also warned that the increased population of ibis, whether in the wild or in captivity, requires a 
larger and more varied natural habitat.
Rampant hunting, the massive loss of habitat caused by deforestation and the overuse of pesticides, which killed aquatic insects on which the ibis feed, are believed to be the main reasons for the sharp reduction in the ibis population before 1981.
So, in 1983, a State-level natural reserve was set up in Shaanxi province to protect the bird. But the struggle for living space between human and animal has never stopped, said Lu Baozhong, deputy director of the Shaanxi Crested Ibis Conservation Station.
"For example, ibis often look for loaches in farmers' rice fields. Sometimes their claws trample the rice seedlings. In another case, villagers discovered some land with abundant mineral resources which happened to be a habitat for ibis," said Lu, who has devoted 30 years to ibis protection.
A long-term win-win solution for ibis and local communities needs to be developed, one that would provide ecological compensation for local residents, Lu said.. What’s the best title for the passage?
| A．The Rare Bird in China | B．New Problems for the Crested Ibis |
| C．The Way to Save the Crested Ibis | D．The Reason for the Crested Ibis’s Extinction |
Which of the following statement is TRUE ?
| A．The crested ibis is a native of China. |
| B．Before 1981, the crested ibis was extinct in China. |
| C．The crested ibis is now free from the threat of extinction. |
| D．Most of the crested ibis are in Shaanxi province. |
. Why did the experts adopt the way of inbreeding to protect the crested ib
is?
| A．To increase the mortality rate. |
| B．To increase the number of the crested ibis. |
| C．To get more physical defects for hatched chicks |
| D．To have the lowest diversity of the endangered bird. |
. What may be the reason for the reduction in the population of the crested ibis before 1981?
| A．inbreeding | B．economic development |
| C．over hunting | D．sandstorm |
. What can we learn from the passage?
| A．Due to our great efforts, the crested ibis lives in the wild well. |
| B．Scientists will choose a better habitat for the crested ibis. |
C．The problems of the crested ibis have not been solved now. |
| D．The government has established a genetic database of the crested ibis. |
Being a mother is apparently not like it was in the good old days.
Today’s parents yearn for the golden age that their own mothers enjoyed in the 1970s and 1980s, researchers found. Mothers have less time to themselves and feel under greater pressure to handle work and family life than the previous generation. As a result, 88 per cent said they felt guilty about the lack of time they spent with their children.
The survey of 1,000 mothers also found that more than a third said they had less time to themselves than their mothers did – just three hours a week or 26 minutes a day. And 64 per cent said this was because they felt they ‘had’ to go out to work, while nearly a third (29 per cent) said they were under constant pressure to be the ‘perfect mother’, the report found.
Other findings showed social networking and parenting websites, as well as technology such as Skype, were important in providing help and support among female communities. Kate Fox, a member of the Social Issues Rese
arch Centre, which conducted the survey for Procter & Gamble, said: ‘With increasing pressure on 
mothers to work a “double shift” — to be the perfect mother as well as a wage-earner — support networks are more important than ever.
It comes as a separate report examining childcare in the leading industrialised nations found that working mothers in Britain spend just 81 minutes a day caring for their children as a ‘primary activity’. Mothers who stay at home, on the other hand, manage twice as much time – more than two and a half hours – looking after their offspring, according to the Organisation for Economic Co-operation and Development.
Critics say the pressure on women to work long hours, and leave their offspring in the hands of nurseries or childminders, is putting the well-being of their children at risk.
The study also reveals that, despite the fact that more and more modern mothers go out to work, the burden of childcare still falls on them - even if their husband is not in work. A father who is not in work tends to spend just 63 minutes a day looking after his child - 18 minutes less than a mother who goes out to work. Working fathers spare less than three quarters of an hour with their children.. What does the passage mainly talk about?
| A．The good old days of mothers in the 1970s and 1980s. |
| B．The great sufferings of today’s children. |
| C．The statistics of working mothers and full-time mothers. |
| D．The big problems that today’s working mothers face. |
. What does the underlined phrase “yearn for” probably means ___________.
| A．hate | B．miss | C．abandon | D．control |
Which of the following problems is NOT mentioned in the passage?
| A．Today’s mothers have less time left for their children and themselves. |
| B．The working mothers can hardly strike the balance between work and family. |
| C．Most of the mothers can not control their husbands nowadays. |
| D．Modern fathers do not spend enough time with their children. |
From para. 4, we can infer that ___________.
| A．working mothers can seek help on line |
| B．Skype is a very famous expert in studying social issues |
| C．working mothers’ double shift is to be a wife and a mother |
| D．Kate Fox has opened a website offering help to working mothers |
. What critics say means that _____________.
| A．it is wise for working mothers to put their kids in nurseries or childminders |
| B．too much time in nurseries or childminders is bad for kids’ mental and physical health |
| C．nurseries or childminders are dangerous places for children |
| D．children do not like nurseries or childminders at all |
In a surprising discovery about where higher life can survive, scientists have found a shrimp -like creature and a jellyfish swimming beneath an Antarctic ice sheet.
About 180 meters below the ice where no light can get through, scientists had figured nothing much more than a few microbes (微生物) could exist.
That’s why a NASA team was surprised when they lowered a video camera to get the first long look at the underbelly of an ice sheet in Antarctica. A curious shrimp-like creature came swimming by and then parked itself on the camera’s cable. Scientists also pulled up a tentacle (触须) they believe came from a jellyfish.
“We were operating on the presumption that nothing’s there.” said NASA ice scientist Robert Bindschadler. “It was a shrimp you’d enjoy havin
g on your plate.”
“We were just gaga (狂热的) over it,” he said when talking about the 7.5cm long, orange creature starring in their two-minute video. Technically, it’s not a shrimp. It’s a Lyssianasid amphipod, which is distantly related to the shrimp.
The video is likely to inspire experts to rethink what they know about life in harsh environments. And it has scientists thinking that if shrimp-like creatures can live below 180 meters of Antarctic ice in freezing dark water, what about other cold places? What about Europa, a frozen moon of Jupiter?
Cynan Ellis – Evans, a scientist of the British Antarctic Survey called the finding fascinating. He said it was possible the creatures swam in from far away and don’t live there permanently.
But Kim, who is a co-author of the study, doubts it. “The site in West Antarctica is at least 19 km from open seas. Bindschadler drilled a 20 cm-wide hole and was looking at a tiny amount of water. That means it’s unlikely that two creatures swam from great distances and were captured randomly in that small area,” she said.
“Yet scientists were puzzled at what the food source would be for these creatures. While some microbes can make their own food out of chemicals in the ocean, complex life like the shrimp can’t,” Kim said.
“So how do they survive? That’s the key question.” Kim said.
“It’s pretty amazing when you find a huge puzzle like that on a planet where we thought we know everything.” Kim said.. Scientists had believed that harsh environments could only have been populated by ______ .
| A．jellyfish | B．mammals | C．microbes | D．shrimp-like creatures |
According to Kim, the shrimp-like creature _________ .
| A．swam great distances to Antarctic | B．has always lived in the area |
| C．gradually evolved from shrimps | D．has nothing in common with shrimps |
The finding is significant in that __________.
| A．it marks NASA’S first Antarctic biological study |
| B．it proves there is marine life in the Antarctic |
| C．it could inspire further study of life in harsh environments |
| D．it shows that Lyssianasid amphipod is closely related to shrimps |
. The last three paragraphs suggest that __________.
| A．researchers will look at the places the creatures came from |
| B．ice scientists will drill deeper to find more creatures |
C．scientists know very little about the planet they live o n |
| D．further research will be done about what the creatures live on |
If English means endless new words, difficult grammar and sometimes strange pronunciation, you are wrong. Haven’t you noticed that you have become smarter since you started to learn a language?
According to a new study by a British university, learning a second language can lead to an increase in your brain power. Researchers found that learning other languages changes grey matter. This is the area of the brain which processes information. It is similar to the way that exercise builds muscles.
The study also found the effect is greater, the younger people learn a second language.
A team led by Dr Andrea Mechelli, from University College London, took a group of Britons who only spoke English. They were compared with a group of “ea
rly bilinguals” who had learnt a second language before the age of five, as well as a number of later learners.
Scans showed that grey matter density(密度)in the brain was greater in bilinguals than in people without a second language. But the longer a person waited before mastering a new language, the smaller the difference.
“Our findings suggest that the structure of the brain is changed by the experience of learning a second language,” said the scientists.
It means that the change itself increases the ability to learn.
Professor Dylan Vaughan Jones of the University of Wales, has researched the link between bilingualism and maths skills. “Having two languages gives you two windows on the world and makes the brain more flexible,”he said. “You are actually going beyond language and have a better understanding of different ideas.”
The findings were matched in a study of native Italian speakers who had learned English as a second language between the ages of two and 34. Reading, writing, and comprehension were all tested. The results showed that the younger they started to learn, the better. “Studying a language means you get an entrance to another world,” explained the scientists... The main subject talked about in this passage is_______.
| A．science on learning a second language | |
B．man's ability of learning a  second language |
|
| C．language can help brain power | D．language learning and maths study |
..In the second paragraph, the writer mentions “exercise” in
order to_______.
| A．say language is also a kind of physical labor |
| B．prove that one needs more practice when he (she) is learning a language |
| C．to show the importance of using the language when you learn the language |
| D．make people believe language learning helps grey matter work well |
.. We may know from the scientific findings that______
__.
| A．the earlier you start to learn a second language the higher the grey matter density is |
| B．there is no difference between a later second language learner and one who doesn't know a second language |
| C．the experience of learning a second language has bad effect on people's brain |
| D．the ability of learning a second language is changing all the time |
.. In the last two paragraphs, the author wants to tell us that_______.
| A．learning a second language is the same as studying maths |
| B．early learning of a second language helps you a great deal in study other subjects |
| C．Italian is the best choice for you as a second language |
| D．you’d better choose the ages between 2 and 34 to learn a second language |
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