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阅读下面材料, 在空白处填入适当的内容或括号内单词的正确形式。

Scientists have discovered that_1. (stay) in the cold could help us lose weight. Researchers at the University of California found that exposure to the cold increases levels of a protein that helps form brown fat--the type of fat that produces heat and keeps us warm. Brown fat burns energy, 2. helps us lose weight. White fat stores extra energy, which results 3. weight gain. The researchers said that because air conditioning and heating give us constant, 4. (comfort) temperatures, our body’s need for brown fat has decreased. They found that: “Outdoor workers in northern Finland who 5. (expose) to cold temperature have 6. significant amount of brown fat when 7. (compare) to same-aged indoor workers.” The research was conducted on two different control groups of mice. 8. group was injected with the protein that helps create brown fat. This group later gained 30% less weight after both groups were fed high-fat diets. The researchers say this could be good news in the fight against obesity. People who are obese have 9. (low) levels of brown fat than thinner people. Head researcher Hei Sook Sul said, “This protein could become an important target for research into the treatment and prevention of obesity and obesity-related diseases.” She added, “If you can somehow increase levels of this protein, you could 10. (possible) lose more weight even if eating the same amount of food.”

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In choosing a friend, one should be very careful. A good friend can help you study. You can have fun together and make each other happy. Sometimes you will meet“fair weather friends”. They will be with you if you have money or luck, but when you are down, they will run away. How do I know when I have found a good friend? I look for certain qualities (品质) of character, especially understanding, honesty and reliability (可靠).

Above all else, I look for understanding in a friend. A good friend tries to understand how another person is feeling. He is not quick to judge. Instead, he tries to learn from others. He puts himself in the other person's place, and he tries to think of ways to be helpful. He is also a good listener. At the same time, however, a good friend is honest. He does not look for faults (过错) in others. He notices their good points. In short, a friend will try to understand me and accept me.

Another quality of a friend is reliability. I can always depend on (信赖) a good friend. If he tells me he will meet me somewhere at a certain time, I can be sure that he will be there. If I need a favor, he will do his best to help me. If I am in trouble, he will not run away from me.

There is a fourth quality that makes a friend special. A special friend is someone with whom we can have fun. We should enjoy our lives, and we would enjoy our friendship. That is why I especially like friends who are fun to be with. A good friend likes the same things I like. We share experience and learn from each other. A good friend has a good sense of humor (幽默), too. He likes to laugh with me. That is how we share in the joy of being friends. And I know that he is looking for the same quality in me.

When I meet someone who is reliable, honest, and understanding, I know I've found a friend!

1.Which of the following qualities the writer thinks is the most important in choosing ________a friend?

A. understanding. B. honesty.

C. reliability. D. a sense of humor.

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A. they will give you all that they have when you need help

B. you will be refused when you get into trouble

C. you will become rich

D. you can be sure that you get real friends

3.This passage mainly discuss ______ .

A. the qualities of a friend

B. where to choose friends

C. how to get along with friends

D. the importance of having a friend

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It is named a kind of wooden Eiffel Tower, because of the fact that there was a large wooden platform far out in the lake on which stood an improbably high diving board. It was, I’m sure, the county’s tallest wooden structure and no one had ever been known to jump from it.

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D. He lost his confidence and started to panic,

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He met her at a party. She was outstanding while he was so normal. After the party, he invited her for coffee. She was surprised but being polite, she agreed.

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Parents whose children think the latest Nike or Adidas shoes may be better than buying old-fashioned plimsolls (橡胶底帆布鞋) because they encourage a healthier style of running, researchers said.

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完形填空

阅读下面短文,从短文后各题所给的四个选项(A、B、C、D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

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阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

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