Overweight has been a great concern for some people. In an attempt to keep normal weight, people have    48    tried various methods. Nevertheless, not all the ways are    49  when it comes to health. For weight loss, many people   50    the high-protein, low-carbohydrate(碳水化合物)diets. However, such diets might have   51  harmful long-term effects on the colon (结肠), a small study indicates.
On average, the study found when the men were on the high-protein diets, they had higher levels of substances known as N-nitrous compounds that have been  52    cancer. And when they were on the high-protein, low-carbohydrate diet, they had lowered amounts of fiber-originated compounds thought to be protective against    53   .
The findings   54  that people should be aware of consuming too much protein and too little fiber over a long period. In general, experts   55  that adults get about 28 grams of fiber per day though—it’s not known whether that’s enough for someone on a high-protein weight-loss diet.

I’d like to buy a house—modern, comfortable and      , in a quiet neighborhood.

Science can’t explain the power of pets, but many studies have shown that the company of pets can help lower blood pressure and raise chances of recovering from a heart attack, reduce loneliness and spread all-round good cheer.
Any owner will tell you how much joy a pet brings. For some, an animal provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State University of New York measured stress (紧张) levels and blood pressure in people ---half of them pet owners ---while they performed 5 minutes of mental arithmetic (算术) or held a hand in ice water. Subjects completed the tasks alone, with a husband/wife, a close friend or with a pet. People with pets did it best. Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates. With pets in the room, people also made fewer math mistakes than when doing in front of other companions. It seems people feel more relaxed (放松)around pets, says Allen, who thinks it may be because pets don’t judge.
A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on diet-and-exercise programs; a separate group of 56 people without pets were put on a diet program. On average, people lost about I1 pounds, or 5% of their body weight. Their dogs did even better, losing an average of 12 pounds, more than 15% of their body weight. Dog owners didn’t lose any more weight than those without dogs but, say researchers, got more exercise overall---mostly with their dogs --- and found it worth doing.
【小题1】What does the text mainly discuss?

Competition between international universities is heating up, as China grows as one of the largest exporters of students aiming to study abroad. “Lots of universities are becoming more and more aggressive to attract Chinese students. Every day I receive contacts from universities in the US expressing the desire to come to China to recruit students,” said Frank Joseph, a commercial officer from embassy of the United States.

One key reason why more Chinese students are able to study abroad is the economy: With China’s boom within the past decade, more families have the financial wherewithal (资金) to send their children to international universities. There will be a total of 200,000 family-funded Chinese students studying overseas in 2011, up 20 percent from last year, said Wu Zaofeng, deputy secretary general of China Education Association for International Exchange.

International institutions, Joseph said, are also facing increasingly tough financial situation with a shortage of domestic students and a drop in government subsidies (补贴). Students, especially in the US are paying high tuition fees and living expenses. Chinese students with money to spend, according to experts, can fill up the gap. Students on average spend 150,000 yuan to 200,000 yuan every year studying in US, according to statistics from the US Institute of International Education. During 2009-2010, there were approximately 81,000 Chinese students studying in the US, up 19.8 percent from 2008.

Representatives from approximately 60 universities from the United States are planning to arrive in Beijing this weekend to attract more Chinese students at this year’s fair. Besides the US, many other countries are also vying (竞争) to enroll Chinese students.

Post-study work visa put out by British government allows all international students completing a UK degree qualification to apply for a visa to stay on and look for work in UK for up to 2 years. Being the third most popular destination for international students next to the US and the UK, France has set up two types of scholarships and has handed out an increase of 26 percent in scholarship funds to Chinese students in recent years.

1.The reason for heating up competition between international universities is __________.

2. Why are more Chinese students able to study abroad?

3.Which of the following statements is TRUE?

4. From the passage we can learn that __________.

Happiness is U-shaped, for we are happier at the start and end of our lives but hit a slump when we are middle-aged, British and US researchers say.

Economists from the University of Warwick, central England, and from Dartmouth College, New Hampshire, looked at data on the mental health of two million people from 80 countries.

In Britain, the probability of depression for men and women peaks at around 44 years of age, Warwick University said in a press release.

In the United States, though, ________________________between men and women. Among women, unhappiness peaked at around the age of 40, whereas among men, it was about 50.

But the U-shape of happiness is constant around the world, and mid-life depression occurs regardless of marital status（婚姻状况）, changes in job or income.

The study appears in Social Science & Medicine, published by the Dutch publishing house Elsevier.

"It happens to men and women, to single and married people, to rich and poor, and to those with and without children.” said co-author Andrew Oswald.

One possibility may be that people realize they won't achieve many of their ambitions at middle age. The researchers said.

Another reason could be that after seeing their fellow middle-aged peers begin to die, people begin to value their own remaining years and embrace life once more.

But the good news is that if people make it to aged 70 and are still physically fit, they are on average as happy and mentally healthy as a 20-year old.

"For the average persons in the modern world, the dip in mental health and happiness comes on slowly, not suddenly in a single year," Oswald said. "Only in their fifties do people emerge from this low period.”

1. Which sentence in the passage is the closest in meaning to the following one?

There are chances that the middle-aged people will realize their ideal is likely to be unattainable.

__________________________________________________________________________

2. Fill in the blank in Paragraph 3 with a proper sentence．（within 10 words）

__________________________________________________________________________

3. How do you understand the sentence that “Happiness is U-shaped”? （within 20 words）

__________________________________________________________________________

4. Is mid-life depression a common Phenomenon in the world? How do you know? （within 15 words）

__________________________________________________________________________

5. Translate the underlined sentence in the last paragraph into Chinese

__________________________________________________________________________