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
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
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.
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．
假如你是新华中学的学生会主席李华，你校学生会应英国Westminster School邀请，暑假将到该校进行交流访问，向该校学生介绍中国传统文化。请你给该校联系人Mr. Smith写一封邮件，信的要点如下：
1.感谢对方的邀请
2.询问食宿、活动安排和说明要介绍的传统文化内容
3.祝愿交流活动成功
注意：
1.词数100左右；
2.可以适当增加细节，以使行文连贯；
3.开头和结尾已给出，不计入总词数。
Dear Mr. Smith，
I am Li Hua, chairman of the Student Union of Xin Hua High School.
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
________________________________________________________________________
Thank you for your attention! Best wishes!
Yours,
Li Hua
How to keep yourself safe from new virus?
After a new-type coronavirus was detected in viral pneumonia cases in Central China's Wuhan city three months ago, more cases have been reported in recent days. 1.:
1. Wear masks outdoors
●Wearing a mask is one of the most effective ways to protect you from getting infected.
●Make sure to wear it properly by tightening up the nose clip and pulling the bottom of it over your chin.
●2., a mask is also needed to prevent you from spreading germs to others.
2. Cover your coughs and sneeze with tissue
Cover your mouth and nose with a tissue when you cough or sneeze, or you can cough or sneeze into your sleeve, but avoid covering with your hands directly.
3. 3.
Wash your hands with soap and running water thoroughly for at least 15 seconds.
● Before eating and after using the toilet
● After returning home
● After touching trash or garbage
● After contacting with animals or handling animal wastes
4. Strengthen your immune system and exercise regularly
● Exercise regularly is one of the most important ways to help you stay away from catching any infections.
● Make sure that shared spaces have good air flow and avoid going to crowded places such as hospitals, railway stations and airports. 4.
● Seek prompt medical attention if you have symptoms of fever and respiratory infection.
● Avoid close contact with people who have flu or cold-like symptoms.
●5.. Avoid contact with wild animals or farmed livestock without any protection.
A.If your hands are not visibly dirty
B.Eat thoroughly cooked meat and eggs
C.Wash your hands frequently and properly
D.Protect yourself and others from getting sick
E.Wear a mask if transport or movement is necessary
F.If you’re not feeling well or have symptoms of fever
G.To prevent catching the infection, here’s what you can do
