A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin caner, actually increases the risk.
Researchers from the University of Yale based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanomas(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, 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.The underlined word “flaws” in the 2nd paragraph most probably means ________.
A.evidences B.facts C.faults D.failures
2.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
3.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
4.Which of the following can be the best 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
难度: 简单查看答案及解析
One day, a college student was taking a walk with a professor. As they went along, they saw lying in the path a pair of old shoes. They supposed the shoes belonged to a poor man who was employed in a field close by, and who had nearly finished his day’s word.
The student turned to the professor, saying, “ Let us play the man a trick: we will hide his shoes, and hide ourselves behind those bushes, and wait to see his confusion when he cannot find them”.
“My young friend,” answered the professor, “we should never amuse ourselves at the expense of the poor. But you are rich, and may give yourself a much greater pleasure by tricking on the poor man. Put a coin into each shoe, and then we will hide ourselves and watch how the discovery affects him.”
The student did so, and they both placed themselves behind the bushes close by. The poor man soon finished his work, and came across the field to the path where he had left his coat and shoes. After he slipped his foot into one of his shoes, he felt something hard. He bent down to feel w hat it was, and found the coin. Astonishment and wonder were seen on his face.
He fixed his eyes on the coin, turned it round, and looked at it again and again. He then looked around him on all sides, but no person was to be seen. He now put the money into his pocket, and continued to put on the other shoe; but his surprise was doubled on finding the other coin. His feelings overcame him. He fell upon his knees, looked up to heaven and cried a sincere thanksgiving, in which he spoke of his wife, sick and helpless, and his children without bread, Whom the timely help, from some unknown hand, would save from dying．
The student stood there, deeply affected, and his eyes filled with tears．“Now,”said the professor,“are you not much better pleased than if you had played your intended trick？” The youth replied,“You have taught me a lesson which I will never forget．
1.The student wanted to play the poor man a trick to _________________．
A.find the truth B.show his wisdom
C.amuse himself D.teach him a lesson
2.After finding the two coins, the man felt_____________．
A.helpless B.interested
C.peaceful D.Thankful
3.We can know from the passage that the professor is ___________．
A.wise B.rich
C.humorous D.Serious
4.What dose the story intend to tell us？
A.A small act of kindness brings great joy．
B.God helps those who help themselves．
C.Where there is a will, there is a way．
D.Actions speak louder than words．
难度: 中等查看答案及解析
Tips for Cycle Trips
Cycling has many advantages as a form of travel, as it is the fastest way to travel by human power, and slow enough to allow the type of local involvement that is impossible with powered travel. Cycle travel is a cheap form of transportation.
Distance
On level terrain（地形）, without a headwind, a cyclist of average fitness on a touring bike can comfortably cover 60-120km a day. Distances of up to 250km a day are possible, but anything much beyond 120km will require considerable physical tension and not allow many stops to enjoy the places you visit. For many, 80-100km a day will be the most suitable distance to aim for, as it will give a sense of achievement and also leave plenty of time for meals and activities.
Geography
The gradient（坡度）of the trip will reduce your range. A basic rule is that for every 100 metres of altitude you climb, you should add an extra 15 minutes to your journey time. In hilly or mountainous areas, the easiest routes for cycling are downstream along major rivers, as overall they will be downhill. A long, roundabout route along a river will usually be easier than a short, direct route over a hill or mountain pass. However, it is worth bearing in mind that the most scenic routes often come from hilly terrain.
Eat
Food choice depends largely on where you are, so see the respective sections for more information about foods. As you will be working hard, it’s important to get enough energy in your food. On long trips away from major towns, there may be little quality food available, so be prepared to live on candy bars, prepared meat products and the like if the need arises.
Sleep
While you can take a tent with you, many hotels and especially campsites can accommodate cyclists. However, there are also some hotels that may be less used to accommodating cyclists. If you are exploring an unfamiliar place, asking about the accommodation spares you the search for a new place to stay after a long exhausting day of travel.
1.Which of the following distance does the author suggest to ordinary cyclists a day?
A.90km. B.50km.
C.130km. D.250km.
2.What can we learn from the passage?
A.Cycling over a mountain is challenging but worthy.
B.Hotels seldom provide accommodation for cyclists.
C.High quality food is easy to get on long trips.
D.It takes cyclists 15 minutes to climb 10m of altitude.
3.Where can we probably read this passage?
A.In a geography book. B.In a research report.
C.In a travel magazine. D.In a science fiction.
难度: 中等查看答案及解析
When we think of leadership, we often think of strength and power. But what are these really, and how do they operate?
Leadership today is not about forcing others to do things. If this is even possible, it is short-tern, and tends to backfire. If you order someone to do something against their will, they may do it because they feel they must, but the anger they feel will do more harm in the long-term. They will also experience fear.
Fear causes the thinking brain to shut down, making the person unable to function at his or her best. If they associate you with .his emotion of fear, they will become less functional around you, and you will have succeeded in not only shooting yourself in the foot, but possibly making a very good employee or partner unable to perform effectively. Fear has no place m leadership.
The way we influence people in a lasting way is by our own character, and our understanding and use of emotion. We can order someone to do something, which may be part of the work day, or we can employ them at the emotional level, so they become fully devoted to the projects and provide some of their own motivation. Today’s work place is all about relationships.
Anyone works harder in a positive environment in which they’re recognized and valued as a human being as well as worker. Everyone produces just a bit more for someone they like. Leaders understand the way things work. They know the pay check is not the single most motivating factor in the work life of most people.
The true strength of leadership is an inner strength that comes from the confidence of emotional intelligence—knowing your own emotions, and how to handle them, and those of others. Developing your emotional intelligence is the single best thing you can do if you want to develop your relationships with people around you, which is the key to the leadership skills.
1.An employee man have a feeling of fear in the work place when .
A.he is forced to do things
B.he cannot work at his best
C.he feels his brain shut down
D.he thinks of his work as too heavy
2.Which of the following is TRUE according to the passage?
A.People tend to associate leadership with fear.
B.Good relationship is the key to business success.
C.Smart people are more functional in the work place.
D.Working conditions affect people’s physical health.
3.To positively influence employees, a leader should first of all .
A.develop his own personality
B.provide better suggestions
C.give his employees a pay raise
D.hide his own emotion of fear
4.Good leadership is mainly seen in a leader’s ability to .
A.provide a variety of projects for employees
B.help raise employees’ living standards
C.give employees specific instructions
D.deal wisely with employees’ emotions
难度: 中等查看答案及解析
Doctors say anger can be an extremely damaging emotion, unless you learn how to deal with it. They warn that anger can lead to heart disease, stomach problems, headaches, emotional problems and possibly cancer.
1. Some people express anger openly in a calm reasonable way. Others burst with anger, and scream and yell. But other people keep their anger inside. They can not or will not express it. This is called repressing anger.
For years many doctors thought that repressing anger was more dangerous to a person’s health than expressing it. They said that when a person is angry, the brain releases the same hormones (荷尔蒙). They speed the heart rate, raise blood pressure, or sugar into the blood, etc. 2.
Some doctors say that both repressing and expressing anger can be dangerous. They believe that those who express anger violently may be more likely to develop heart disease, and they believe that those who keep anger inside may face a greater danger of high blood pressure.
3. They say the first step is to admit that you are angry and to recognize the real cause of the anger, then decide if the cause is serious enough to get angry about. If it is, they say, “4. Wait until your anger has cooled down and you are able to express yourself calmly and reasonably.”
Doctors say that a good way to deal with anger is to find humor in the situation that has made you angry. 5.
A.In general the person feels excited and ready to act.
B.They say that laughter is much healthier than anger.
C.Expressing anger violently is more harmful than repressing it.
D.Anger may cause you a cancer.
E.Do not express your anger while angry.
F.Anger is a normal emotion that we all feel from time to time.
G.Doctors say the solution is learning how to deal with anger.
难度: 中等查看答案及解析
One summer night, on my way home from work, I decided to see a movie. I knew the theatre would be air conditioned and I couldn’t face my _______ apartment.
Sitting in the theater I had to look through the _______ between the two tall heads in front of me. I had to keep changing the angle (角度)_______ she leaned over to talk to him,_______ he leaned over to kiss her. Why do Americans express such feelings in a _______ place?
I thought the movie would be good for my English, but _______ it turned out, it was an _______ movie. After about an hour I decided to give up the movie and _______ my popcorn (爆米花). I’ve never understood why they give you so much popcorn! It tasted pretty good,_______.
After a while I heard ________ more of the romantic-sounding Italians. I just heard the ________ of the popcorn crunching (嘎扎的响声) between my teeth. My thought started to ________. I remembered when I was in South Korea, I ________ to watch Kojak on TV frequently. He spoke perfect Korean-I was really amazed. He seemed like a good friend to me ________ saw him again in New York speaking ________ English instead of perfect Korean. He didn’t even have a Korean accent and I ________ like I had been cheated. When our family moved to the United States six years ago, none of us spoke any English.________ we had begun to learn a few words, my mother suggested that we all should speak English at home. Everyone agreed, but our house became very ________ and we all seemed to avoid each other. We sat at the dinner table in silence,________ that to speaking the difficult language. Mother tried to say something in English, but it came out all ________ and we all burnt into laughter and decided to forget it! We have been speaking Korean home ever since.
1.A.hot B.warm C.heated D.cool
2.A.hole B.space C.break D.reserve
3.A.by time B.on time C.every time D.some time
4.A.while B.whenever C.or D.and
5.A.clean B.public C.private D.open
6.A.since B.as C.what D.when
7.A.Italian B.English C.Korean D.American
8.A.exchange B.lack C.threw D.eat
9.A.too B.still C.certain D.though
10.A.no B.any C.much D.few
11.A.voice B.signal C.sound D.noise
12.A.wander B.wonder C.imagine D.leave
13.A.enjoyed B.happened C.used D.turned
14.A.because B.until C.then D.therefore
15.A.perfect B.informal C.formal D.practical
16.A.felt B.looked C.seemed D.appeared
17.A.While B.Once C.Before D.If
18.A.empty B.happy C.quiet D.mature
19.A.preferring B.stopping C.referring D.connecting
20.A.wrong B.right C.wonderful D.honest
难度: 中等查看答案及解析
阅读下面句子，从四个选项（A、B、C、D)中选出划线单词的同义词或英文解释。
1.Apart from a significant amount of money, the wallet also had her phone and a phone of an important official.
A.Therefore B.Consequently C.Meanwhile D.Besides
2.The next Saturday, we would sold the treasures we’d purchased the week before at a tidy profit.
A.medium B.clean C.small D.considerable
3.He persisted through weeks of temptations to quit, just by doing a little more each day to further his goal.
A.enticements B.contempt C.hesitations D.regrets
4.Her own experience as a child was marked with adversity--- in her youth, she was rejected from a preschool and called horrible names, even by adults.
A.fortune B.hardships C.pride D.kindness
5.All fires should be thoroughly extinguished before leaving the area.
A.started up B.put off C.put out D.put up
难度: 中等查看答案及解析
请根据首字母提示及所给汉语意思，在空格处填入正确的单词，并将答案填写在答题卡上（请填写完整的单词）
1.Income tax for the low-paid should be a______ by the government.
2.This world-class p______ in evening dress plays classical music on the violin.
3.In China, the Spring Festival is the most ______ (充满活力的) and important festival because it is a festival that looks forward to the coming of spring.
4.Cloning can make contributions to the animals which are at the edge of e ______
5.In the ______ (不在,缺席) of the teacher, the monitor is in charge of the whole class.
6.Compared with 2010, the number of students a______ for the summer university has increased by 20% this year.
7.Charles, overcome with ______ (困倦，倦意), slept in his clothes, sitting in an armchair with his head fallen forward on the bed.
8.The ______ (顽固的) student turned a deaf ear to the teacher’s instructions.
9.It is ______ (体贴的，考虑周到的) of you to look after my daughter when I am away.
10.The Japanese war criminals can never be f______ for the crimes they committed on Chinese people.
难度: 中等查看答案及解析
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者（从第11处起）不计分。
When I was still young in my high school, my mother dragged me to play basketball to lose weight. Therefore, it turned out to be a bitter failure because I devoted my time on study. One day, a friend of me contacted me and suggested that we start to swim. Without any hesitation, I agreed because we all thought that it was coolest thing in the world. I couldn’t forget the day on that I was thrown into the cold water. Fortunately, I survived. Honest speaking, I had a hard time recovered from the shock. Then my friend teaches me to hold my breath underwater. Finally, I succeeded. Now realizing that having sports are beneficial to my health, I develop a strong taste for swimming, which becomes part of my life.
难度: 中等查看答案及解析
假定你是李华，你们学校下周将举办一场以“保护濒危动物”为主题的宣传活动，学生自己设计海报并展览。你的朋友David对此很感兴趣，请你用英语给他写一封电子邮件，内容包括：
1. 时间与地点；2. 活动内容。
注意：1. 词数100词左右；
2. 可以适当增加细节，以使行文连贯。
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难度: 中等查看答案及解析