Cell phones:Is there a cancer link?
Could your cell phone give you cancer? Whether it could or not, some people are worrying about the possibility that phones, power lines and Wi-Fi could be responsible for a range of illnesses, from rashes to brain tumors.
Some say there is evidence to support the growing anxieties. David Carpenter, a professor of environmental health sciences at the university at Albany, in New York, thinks there’s a greater than 95 percent chance that power lines can cause childhood leukemia (白血病). Also there’s a greater than 90 percent chance that cell phones can cause brain tumors. “It’s apparent now that there’s a real risk, ”said Carpenter.
But others believe these concerns are not justified. Dr Martha Linet, head of radiation epidemiology (流行病学) at the US National Cancer Institute, has looked at the same research as Carpenter but has reached a different conclusion. “I don’t support warning labels for cell phones, ”said Linet. “We don’t have the evidence that there’s much danger.”
Studies so far suggest a weak connection between EMFs (电磁场) and illness—so weak that it might not exist at all. A multinational investigation of cell phones and brain cancer, in 13 countries outside the US, has been underway for several years. It’s funded in part by the European Union, in part by a cell phone industry group. The final report should come out later this year, but data so far don’t suggest a strong link between cell phone use and cancer risk.
【小题1】From the passage we can learn that some people are worried because________.A.they have evidence that the use of cell phones can lead to cancer |
B.they feel surprised and alarmed about cell phone use |
C.some experts have given a warning |
D.cell phones are responsible for brain tumors |
A.the worrying is unnecessary |
B.cancer—warning labels should be on cell phones |
C.there is a link between cell phones and cancer |
D.cell phones have nothing to do with cancer |
A.Optimistic. | B.Objective. |
C.Opposite. | D.Casual. |
A.explained | B.confirmed (证实、确认) |
C.classified | D.restricted (限制) |
For the British, the home is a private place in which he or she goes to hide away from the troubles of life. It is very seldom that one would be invited to a British person’s home. It is rude to knock on a person’s door if you into. Never ask how much the house or any of the items in it costs.
To the American, most of them want their home to be a place where they can entertain and share their lives with their friends. They may be glad to show you around their houses. They may also be pleased when you show your interest and pleasure in their houses.
Both British and American people will engage in (参与) quite a bit of chat and a drink or two before the meal is served. After the first mouthful, you should say how delicious the food is and ask something about it. Remember, never eat with your mouth open and make very little noise while eating. It would be nice of you to help your host in any way. Maybe offer to pour some drinks or clear up after the meal.
【小题1】British people ________invite friends to their home.A.often | B.always | C.seldom | D.never |
A.you can use anything you like | B.you can ask how much his house is |
C.you may ask the cost of the items in it | D.you are not free to go wherever you wish |
A.angry | B.happy | C.sad | D.worried |
A.Differences between British and American home. |
B.Differences between British and American table manners. |
C.Development of table manners of British and the United States. |
D.Some manners on visiting British and American people’s home. |
You may have done something wrong, but now you're willing to make things right.
State what your letter is about. It’s a good idea to begin by letting them know that this letter is an apology. If you don’t want them to be confused about why you’re writing or what you’re going to say, say something like: “
State your mistake. Now that you’re apologizing, say what you’re apologizing for and why it was incorrect.
Offer a solution that will lead to change. Just saying that you’re sorry isn’t really enough. What really gives an apology some power is finding a way to solve the problem in the future.
A.I’m sorry if your feelings got hurt. |
B.I want to write you a letter to apologize. |
C.Accept responsibility. |
D.Be very exact and descriptive. |
E.An apology letter is a great way to start making amends(修补)for a mistake. |
F.It is never too late to make an apology. |
G.This is better, even, than just saying that it will never happen again. |
The American book Who Moved My Cheese has been a bestseller all over the world. It teaches people how to face changes in their lives. Now its author Spence Johnson has written a book just for teens. The book tells us that when facing change in our lives, like a new school or new friends, don’t be afraid. Instead, use this change to make a better life. The book gives an example of a change at school. A school is changing from having two terms to three terms because there are too many students.
Several teens are talking about this. Most of them are unhappy and worried. But Chris is not. He laughs and tells a story about two mice, two “little people” and some cheese.
The four are in a maze looking for the cheese. Here, cheese means something important in life, like moving to a new class or getting into college. But they find the cheese is gone. The mice realize that they can’t change what has happened and have to find more cheese. This means finding different dreams. The little people, however, can’t do this. They are afraid of change so they find no cheese.
After Chris finishes the story, the friends understand one thing: to get more cheese, move in a new direction quickly. His friends understand how this can be used in the changes all teens face, such as doing well at school or having good relationships or just feeling good about yourself.
【小题1】The book Who Moved My Cheese is _________.A.written all over the world |
B.read across the world |
C.sold only in America |
D.loved only by teens |
A.Mice and little people | B.students | C.Cheese | D.Readers |
A.The author is Britain. |
B.There are three terms in every school. |
C.Most teens don’t understand Chris’ story. |
D.The book tells teens how to face changes in their lives. |
A.Never change in our life | B.Change when you like to do |
C.Change with the changes | D.Pay attention to the change |
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