Everyone has good days and bad days.
Sometimes, you feel as if you’re on top of the world and all the questions on your maths test might seem easy. But occasionally you feel horrible, and you lose things and cannot focus on our schoolwork.
For more than 20 years, scientists have suggested that high self-esteem(自尊) is the key to success.Now, new research shows that focusing just on building self-esteem may not be helpful. In some cases, having high self-esteem can make people less likeable or more upset when they fail in something.
“Forget about self-esteem,” says Jennifer Crocker, a psychologist at the University of Michigan, US. “It’s not the important thing.”
Feeling good
Crocker’s advice may sound a bit strange. After all, feeling good can be good for you.Studies show that people with high self-esteem are less likely to be depressed, anxious, shy, or lonely than those with low self-esteem.
However, after reviewing about 18,000 studies on self-esteem, Roy Baumeister, a psychologist at Florida State University, has found that building up your self-esteem will not necessarily make you a better person.
He believes that violent people often have the highest self-esteem of all. He also said:“ There’s no evidence that kids with high self-esteem do better in school.”
Problems
All types of people have problems. People with high self-esteem can have big egos(自我) that can make them less likeable, said Kathleen Vohs, a psychology professor at Columbia University.People with high self-esteem tend to think more of themselves, VOhs says. People with low self-esteem are more likely to rely on their friends when they need help.
What to do
Researchers say it is best to listen to and support other people. Find positive ways to contribute to society. If you fail in something, try to learn from the experience. “The best therapy(药方) is to recognize your faults,” Vohs says. “It’s OK to say, ‘I’ m not so good at that,’ and then move on.”
【小题1】What does the underlined part “on top of the world” in Paragraph 2 probably mean?

A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increases the risk.

Researchers from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma (黑素瘤)．They said that they found faults in studies that had reported associations between sunscreen use and higher risk of melanoma.

Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helps prevent skin cancer, which is increasing in incidence (发生率) faster than any other cancer in the United States.

But questions has been raised about sunscreen and whether it may has opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning.

The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer--- people with fair skin and freckles (雀斑), for example--- are more likely to use sunscreen．As a result, it may appear that sunscreen users get cancer more often.

The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.

1.People with fair skin and freckles         .

2.We can learn from the passage that         .

3.Which of the following can be the best title for this passage?

三：阅读理解（共25小题；每小题2分，满分50分）  

Eye Facts

    There are many commonly held beliefs about eyesight that are not proven facts. For example, some people believe that wearing glasses too soon weakens the eyes. But there is no evidence to show that the structure（结构）of eyes is changed by wearing glasses at young age. Wearing the wrong glasses, however, can prove harmful. Studies show that for adults there is no danger, but children can develop loss of sight if they have glasses unsuitable for their eyes.

    We have all heard some of the common myths about how eyesight gets bad. Most people believe that reading in weak light causes poor eyesight, but that is untrue. Too little light makes the eyes work harder, so they do get tired and strained. Eyestrain also results from reading a lot, reading in bed, and watching too much television. However, although eyestrain may cause some pain or headaches, it does not damage eyesight in the long term.

    Another myth about eyes is that they can be replaced, or transplanted from one person to another. There are close to one million nerve fibers（神经纤维）that connect the eyeball to the brain; as of yet, it is impossible to connect them all in a new person. Only certain parts of the eye can be replaced. But if we keep clearing up the myths and learning more about the eyes, someday a full transplant may be possible!

1. This passage is mostly about __________.

         A. different types of eye problems    B. myths about eyesight

         C. beliefs of eye doctors            D. eye transplants

2. One cause of eyestrain mentioned in the passage is __________.

         A. wearing glasses too long        B. suffering from pain or headaches

         C. reading in poor light            D. reading before going to bed

3. From the passage we can conclude that __________.

         A. doctors are still learning things about eyesight

         B. wearing wrong glasses is less harmful to adults

         C. eye transplants have been performed successfully

         D. people should not wear glasses at young age

    A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increase the risk.

    Researchers from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma (黑素瘤). They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma

 Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helps prevent skin cancer, which is increasing in incidence (发生率) faster than any other cancer in the United States.

    But questions has been raised about sunscreen and whether it may has opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning.

    The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer--- people with fair skin and freckles (雀斑), for example--- are more likely to use sunscreen. As a result, it may appear that sunscreen users get cancer more often.

    The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.

72. The underlined word “flaws” in the 2nd paragraph most probably means ______.

A. evidence        B. facts          C. faults              D. failures

73. People with fair skin and freckles          .

A. seldom use sunscreen              B. are more in danger of skin cancer

C. can be free from the harm of the sun   D. often expose themselves to the sun

74. We can learn from the passage that ______.

A. sunscreen users get skin cancer more often

B. the volunteers have proved the effect of sunscreen

C. the new study was based on the experiences of volunteers

D. the number of skin cancer patients is increasing in America

75. Which of the following can be the title for this passage?

A. Sunscreen to Prevent Skin Cancer           B. Sunscreen to Increase Skin Cancer

C. Skin Cancer Caused by Sunscreen           D. Skin Cancer Caused by Freckles

C
A long-awaited final report from the Food and Drug Administration (FDA) concludes that foods from healthy cloned animals and their offspring(后代) are as safe as those from ordinary animals, effectively removing the last US regulatory(监管的) barrier to the marketing of meat and milk from cloned cattle, pigs and goats.
The 968-page final report, not yet released but obtained by The Washington Post, finds no evidence to support people’s concerns that food from clones may have hidden risks.
But, recognizing that a majority of consumers are wary of food from clones—and that cloning could damage the good image of American milk and meat—the report includes hundreds of pages of raw(原始的) data so that others can see how it came to its conclusions.
The report also admits that human health concerns are not the only subject raised by the coming-out of cloned farm animals.
“Moral, religious and ethical concerns have been raised,” the agency notes in a document accompanying the report. But the report is “exactly a science-based evaluation.” It reports, because the agency is not authorized by law to consider those subjects.
In practice, it will be years before foods from clones make their way to store shelves in large quantities, in part because the clones themselves are too valuable to kill for meat or milk. Instead, the expensive animals—replicas(复制品) of some of the finest farm animals ever born—will be used firstly as breeding stock to create what supporters say will be a new generation of superior farm animals.
When food from those animals hits the market, the public may yet have its say. FDA officials have said they do not expect to require food from clones to be labeled as such, but they may allow foods from ordinary animals to be labeled as not from clones.
64.   What can we infer from the first paragraph?
A.    FDA has waited for a long time to get this final report.
B.    Products from cloned animals have been put into the market before.
C.    People are having the products from cloned animals safely.
D.    There have been once opposite opinions against cloned products.
65.   What does the underlined word “wary” mean?
A. Disappointed.           B. Careful.         C. Fond.                                 D. Proud.
66.   It will be a few years before foods from clones come into the market, partly because _____.
A.    people have little knowledge of the cloned animals
B.    supporters can’t give powerful evidence to support that
C.    the few cloned animals will first be used to create superior animals
D.    they are a new generation for the customers and are too valuable for the customers
67.   What can we conclude from the passage?
A.    FDA officials encourage people to eat more food from clones.
B.    FDA officials think the food from clones will sell better than ordinary food.
C.    People only worry about the health problems when it comes to foods from the clones.
D.    All the foods will not have detailed labels on them.