B
A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increases the risk.
Research 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 have been raised about sunscreen and whether it may have the opposite effect 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---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.
60．The underlined word “flaws” in the 2nd paragraph most probably means _________.
A．evidences B．facts C．faults D．failures
61．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
62．We can learn from the passage that _________.
A．sunscreen users get skin cancer more often
B．the volunteers have proved the effect of the sunscreen
C．the new study has based on the experiences of volunteers
D．the number of skin cancer patients is increasing in America
63．Which of the following is the best title of the 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
What does it mean to day that we live in world of persuasion? It means that we live among competing interests. Your roommate’s need to study for an exam take priority（优先）over pizza. Your instructor may have good reasons not to change your grade. And the object of your romantic interest may have other choices.
In such a world, persuasion is the art of getting others to give fair and favorable consideration to our points of view. When we persuade, we want to influence what others believe and how they behave. We may not always prevail（占优势）--other points of view may be more persuasive, depending on the listener, the situation, and the merits of the case. But when we practice the art of persuasion, we try to ensure that our position receives the attention it deserves.
Some people, however, object to the very idea of persuasion. They may regard it as an unwelcome approach to their lives or as a control. In contrast, we believe that persuasion is inevitable--to live is to persuade. Persuasion may be moral or immoral, selfless or selfish, inspiring or discouraging. Persuaders may enlighten our minds or make us hurt. Moral persuasion, however, calls on sound reasoning and is sensitive to the feelings and needs of listeners. Such persuasion can help us apply the wisdom of the past to the decisions we now must make. Therefore, an essential part of education is learning to resist the one kind of persuasion and to encourage and practice the other.
Beyond its personal importance to us, persuasion is a need to society. The right to persuade and be persuaded is the basic principle of the American political system.What’s the author’s attitude towards persuasion?
| A．Critical. | B．Uninterested. | C．Supportive. | D．Neutral. |
The passage states that some people are against persuasion because they think it is .
| A．an unwelcome influence | B．difficult to do well |
| C．not trustworthy at all | D．never successful |
We can conclude from the passage that persuasion means .
| A．getting people to act according to your will |
| B．exercising power over other people |
| C．making use of your past wise experience |
| D．getting other people to consider your reasonable points of view. |
According to the passage, we can infer that .
| A．we can learn how to persuade in school |
| B．only society can benefit from persuasion |
| C．persuasion plays an important role in America |
| D．persuasion is considered to be an inborn ability |
I must have been about fourteen then, and I put away the incident from my mind with
the easy carelessness of youth. But the words, Carl Walter spoke that day, came back to me
years later, and ever since have been of great value to me.
Carl Walter was my piano teacher. During one of my lessons he asked how much practicing I
was doing. I said three or four hours a day.
"Do you practice in long stretches, an hour at a time?"
"I try to."
"Well, don't," he exclaimed. "When you grow up, time won't come in long stretches. Practice in minutes, whenever you can find them five or ten before school, after lunch, between household tasks. Spread the practice through the day, and piano-playing will become a part of your life."
When I was teaching at Columbia, I wanted to write, but class periods, theme-reading, and committee meetings filled my days and evenings. For two years I got practically nothing down on paper, and my excuse was that I had no time. Then I remembered what Carl Walter had said. During the next week I conducted an experiment. Whenever I had five minutes unoccupied, I sat down and wrote a hundred words or so. To my astonishment, at the end of the week I had a rather large manuscript ready for revision, later on I wrote novels by the same piecemeal method. Though my teaching schedule had become heavier than ever, in every day there were idle moments which could be caught and put to use. I even took up piano--playing again, finding that the small intervals of the day provided sufficient time for both writing and piano practice.
There is an important trick in this time--using formula: you must get into your work quickly. If you have but five minutes for writing, you can't afford to waste four chewing your pencil. You must make your mental preparations beforehand, and concentrate on your task almost instantly when the time comes. Fortunately, rapid concentration is easier than most of us realize.
I admit I have never learnt how to let go easily at the end of the five or ten minutes. But life can be counted on to supply interruptions. Carl Walter has had a tremendous influence on my life. To him I owe the discovery that even very short periods of time add up to all useful hours I need, if I plunge（投入）in without delay.The meaning of “stretch” in the underlined part is the same as that in sentence “ ”.
| A．The forests in the north of the province stretch for hundreds of miles. |
| B．Bob worked as a government official for a stretch of over twenty years. |
| C．My family wasn’t wealthy by any stretch of the imagination. |
| D．During his senior year his earnings far enough to buy an old car. |
Which of the following statements is true?
| A．The writer didn’t completely take the teacher’s words to heart at first. |
| B．Carl Walter has had a great influence on the writer's life since he became a student. |
| C．The writer owes great thanks to his teacher for teaching him to work in long stretches. |
| D．Rapid concentration is actually more difficult than most people imagine. |
We can infer that the writer .
| A．has new books published each year however busy his teaching is |
| B．is always tired of interruptions in life because his teaching schedule is always heavy |
| C．has formed a bad habit of chewing a pencil while writing his novels |
| D．can find sufficient time for mental preparations beforehand, so he's devoted to work instantly |
What is the best title of this passage?
| A．Concentrate on Your Work | B．A Little at a Time |
| C．How I Became a Writer | D．Good AdviceIs Most Valuable |
Meeting people from another culture can be difficult. From the beginning, people may send the wrong signal （信号）. Or they may pay no attention to signals from another person who is trying to develop a relationship.
Different cultures emphasize （强调） the importance of relationship building to a greater or lesser degree. For example, business in some countries is not possible until there is a relationship of trust. Even with people at work, it is necessary to spend a lot of time in "small talk", usually over a glass of tea, before they do any job．In many European countries -- like the UK or France -- people find it easier to build up a lasting working relationship at restaurants or cafes rather than at the office.
Talk and silence may also be different in some cultures. I once made a speech in Thailand．I had expected my speech to be a success and start a lively discussion; instead there was an uncomfortable silence. The people present just stared at me and smiled．After getting to know their ways better, I realized that they thought I was talking too much. In my own culture, we express meaning mainly through words, but people there sometimes feel too many words are unnecessary.
Even within Northern Europe, cultural differences can cause serious problems. Certainly, English and German cultures share similar values; however, Germans prefer to get down to business more quickly. We think that they are rude. In fact, this is just because one culture starts discussions and makes decisions more quickly.
People from different parts of the world have different values, and sometimes these values are quite against each other. However, if we can understand them better, a multicultural environment （多元文化环境） will offer a wonderful chance for us to learn from each other.In some countries, eating together at restaurants may make it easier for people to _____.
| A．develop closer relations | B．share the same culture |
| C．get to know each other | D．keep each other company |
The author mentions his experience in Thailand to show that _________.
| A．the English prefer to make long speeches |
| B．too many words are of no use |
| C．people from Thailand are quiet and shy by nature |
| D．even talk and silence can be culturally different |
According to the text, how can people from different cultures understand each other better?
| A．By sharing different ways of life. | B．By accepting different habits. |
| C．By recognizing different values. | D．By speaking each other’ s languages. |
What would be the best title for the text?
| A．Multicultural Environment. | B．Cross-Cultural Differences. |
| C．How to Understand Each Other. | D．How to Build Up a Relationship. |
Many facts suggest that children are overweight and the situation is getting worse, according to the doctors. I feel there are a number of reasons for this.
Some people blame the fact that we are surrounded （包围） by shops selling unhealthy, fatty foods, such as fried chicken and ice cream, at low prices. This has turned out a whole generation of grown-ups who seldom cook a meal for themselves. If there were fewer of these restaurants, then probably children would buy less take-away food.
There is another argument that blames parents for allowing their children to become overweight. I agree with this, because good eating habits begin early in life, long before children start to visit fast food shops. If children are given fried chicken and chocolate rather than healthy food, or are always allowed to choose what they eat, they will go for sweet and salty foods every time, and this will carry on throughout their lives.
There is a third reason for this situation. Children these days take very little exercise. They do not walk to school. When they get home, they sit in front of the television or their computers and play computer games. Not only is this an unhealthy pastime（消遣）, it also gives them time to eat more unhealthy food．What they need is to go outside and play active games or sports.
The above are the main reasons for this problem, and therefore we have to encourage young people to be more active, as well as steering them away from fast food shops and bad eating habits.According to the text, what kind of children may eat more unhealthy food?
| A．Those who often take exercise. |
| B．Those who often watch television. |
| C．Those who often have meals at home. |
| D．Those who often walk to school. |
The author thinks that children are becoming overweight because
| A．their parents often cook meals for them |
| B．they are too busy to go out and play |
| C．they can’ t choose what to eat |
| D．there are too many fast food shops around |
The word "steering" underlined in the last sentence most probably means _______.
| A．forcing | B．guiding | C．driving | D．moving |
The main purpose of the text is to _________.
| A．tell a story | B．provide facts | C．give advice | D．compare opinions |
When Ben Franklin was only a boy, he always wanted to know about things. He was always asking his father and brothers “What?” and “How?” and “Why?”
They couldn’t always tell him what he wanted to know.
When they couldn’t tell him, Ben tried to find out for himself.
Many times Ben did find out things that no one knew before. The other boys would say, “That Ben Franklin! He’s always finding out something new!”
Ben lived close to the water. He liked to go there to see the boats. He saw how the wind blew them across the water.
One day Ben said to himself, “Why can’t the wind help me float across the water? And I’m going to try.” Ben got his big kite. He took hold of the kite string and ran with it. The wind took the kite up into the air. Then Ben jumped into the water.
The wind blew the kite high into the air. Ben began to float across the water. Soon he was on the other side, and he had not worked at all.
One boy shouted, “Look at Ben floating across the water! His kite takes him to the other side without any work!”
“Yes,” said another. “He’s always finding new ways to do things.”When he was only a child, Ben .
| A．liked to fly a kite by himself | B．always asked easy questions |
| C．always liked to play with water | D．always liked to find out how things worked |
His father and brothers .
| A．couldn’t answer all his questions | B．could answer all his questions |
| C．tried hard to find out something new for him | |
| D．were too busy to answer his questions |
How did Ben Franklin float across the water?
| A．The other boy took him across it. | B．The water carried him across it. |
| C．The flying kite took him across it. | D．A boat took him across it. |
He found out many things that .
| A．children didn’t know | B．his father and brothers knew |
| C．people didn’t know | D．most people knew |
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