Holding a cell phone against your ear or stalling it in your pocket may be hazardous to your health．

         This paraphrases a warning that cell phone; manufacturers include in the small print that is often tossed aside when a new phone is purchased．Apple, for example, doesn't want iP hones to come closer to you than 1．5 centimeters; Research In Motion, Blackberry's manufacturer, recommends 2.5 centimeters．

         If health issues arise from cell phone use, the implications are huge．Voice calls - Americans chat on cell phones 2．26 trillion minutes annually - generate $109 billion for the wireless carriers．

         Devra Davis, an epidemiologist who has worked for the University of Pittsburgh, has published a book about cell phone radiation, "Disconnect." The book surveys scientific research and concludes the question is not settled.

　　Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.

　　"Most cancers have multiple causes," she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.

　　Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid. No studies have yet been completed on cell phone radiation and children, she says.

　　Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiofrequency radiation had damaged DNA in their brains.

　　Ms. Davis recommends using wired headsets or the phone's speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen.

1.We can infer from the passage that________．

         A．Cell phone may do harm to our health if we hold it against our ear or store in our pocket

         B．Devra Davis thinks that there are many factors contributing to cancer．

         C．The increase in brain cancer in the young adults may have something to do with cell phone

         D．Children are more likely to be affected by radiation

2.According to the passage, how could children avoid being hurt by cell phone radiation?

         A．They can keep cell phones away from the abdomen．

         B．They can send short massage instead of making phone calls directly．

         C．They can pay more attention to the small print on the phone．

         D．They should use more advanced cell phones．

3.From this passage we can learn that．________．

         A．American cell phone manufacturers did not give any warning to their customers

         B．American cell phone manufacturers benefit greatly from their products

         C．Scientists have found the connection between brain cancer and ceil phone

         D．Cell phone should be banned because of the increase in brain cancer

4.In which column can we most probably read this passage?

         A．Advanced technology．         B．Entertainment．

         C．Science and life．               D．Celebrity．

Holding a cell phone against your ear or stalling it in your pocket may be hazardous to your health．
This paraphrases a warning that cell phone; manufacturers include in the small print that is often tossed aside when a new phone is purchased．Apple, for example, doesn’t want iP hones to come closer to you than 1．5 centimeters; Research In Motion, Blackberry’s manufacturer, recommends 2.5 centimeters．
If health issues arise from cell phone use, the implications are huge．Voice calls - Americans chat on cell phones 2．26 trillion minutes annually - generate $109 billion for the wireless carriers．
Devra Davis, an epidemiologist who has worked for the University of Pittsburgh, has published a book about cell phone radiation, "Disconnect." The book surveys scientific research and concludes the question is not settled.
　　Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.
　　"Most cancers have multiple causes," she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.
　　Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid. No studies have yet been completed on cell phone radiation and children, she says.
　　Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiofrequency radiation had damaged DNA in their brains.
　　Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen.
【小题1】We can infer from the passage that________．

Holding a cell phone against your ear or stalling it in your pocket may be hazardous to your health．

       This paraphrases a warning that cell phone; manufacturers include in the small print that is often tossed aside when a new phone is purchased．Apple, for example, doesn't want iP hones to come closer to you than 1．5 centimeters; Research In Motion, Blackberry's manufacturer, recommends 2.5 centimeters．

       If health issues arise from cell phone use, the implications are huge．Voice calls - Americans chat on cell phones 2．26 trillion minutes annually - generate $109 billion for the wireless carriers．

       Devra Davis, an epidemiologist who has worked for the University of Pittsburgh, has published a book about cell phone radiation, "Disconnect." The book surveys scientific research and concludes the question is not settled.

　　Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.

　　"Most cancers have multiple causes," she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.

　　Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid. No studies have yet been completed on cell phone radiation and children, she says.

　　Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiofrequency radiation had damaged DNA in their brains.

　　Ms. Davis recommends using wired headsets or the phone's speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen.

We can infer from the passage that________．

       A．Cell phone may do harm to our health if we hold it against our ear or store in our pocket

       B．Devra Davis thinks that there are many factors contributing to cancer．

       C．The increase in brain cancer in the young adults may have something to do with cell phone

       D．Children are more likely to be affected by radiation

According to the passage, how could children avoid being hurt by cell phone radiation?

       A．They can keep cell phones away from the abdomen．

       B．They can send short massage instead of making phone calls directly．

       C．They can pay more attention to the small print on the phone．

       D．They should use more advanced cell phones．

From this passage we can learn that．________．

       A．American cell phone manufacturers did not give any warning to their customers

       B．American cell phone manufacturers benefit greatly from their products

       C．Scientists have found the connection between brain cancer and ceil phone

       D．Cell phone should be banned because of the increase in brain cancer

In which column can we most probably read this passage?

       A．Advanced technology．       B．Entertainment．

       C．Science and life．            D．Celebrity．

第二节（共5小题；每小题2分，满分10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

　　Are you truly happy? Do you ever know what that it means to be happy and what it takes to achieve happiness?   51   the following are a few tips that I follow to create happiness in my life.

　　●  Make a plan for attaining goals that you believe will make you happy. You moods will very likely increase if you are going after something you value.

　　●  Surround yourself with happy people. It is easy to begin to think negatively when you are surrounded by people who think that way.   52   .

　　●  When something goes wrong, try to figure out a solution instead of being absorbed in self pity. Truly happy people don't allow setbacks to affect their mood because they know that with a little thought they can turn the circumstances back to their favor.

　　●    53   These few minutes will give you opportunity to focus on the positive things in your life and will lead you to continuous happiness.

　　●    54   .Whether you treat yourself to lunch, take a long, relaxing bath or simply spend a few extra minutes on your appearance, you will be subconsciously（下意识地）putting yourself in a better mood.

　　●  Finding the humor in situations can also lead to happiness. Find a way to make light of a situation that would otherwise make you happy.

　　●  Keeping healthy is another way to achieve happiness.   55   .

　　E．Spend a few minutes each day thinking about the things that make you happy.

　　F．There are some steps in life that lead to happiness.

　　G．It's also important to take some time each day to do something nice for yourself.

　　Transportation and communication networks bring people together. Yet sometimes people themselves create barriers(障碍) to transportation and communication.

　　In some countries, laws stop people from moving freely from place to place. Over the centuries, many groups of people have been denied the freedom to travel because of their race, religion, or nationality. In the Middle Ages, for example, Jews were often forbidden to move about freely within certain cities. South Africa's government used to require black Africans to carry passes when they travel within the country. Some governments require all citizens to carry identification papers and to report to government officials when ever they move.

　　Countries set up customs posts at their borders. Foreign travelers must go through a customs inspection before they are allowed to travel in the country. Usually travelers have to carry special papers such as passports and visa. Some countries even limit the number of visitors to their country each year. Others allow tourists to visit only certain areas of the country, or they may require that travelers be with an official guide at all times during their stay.

　　Many of those barriers to travel also act as barriers to communication. When two governments disagree with each other on important matters, they usually do not want their citizens to exchange news of ideas freely. Countries often try to keep military or industrial information secret.

　　Today, people have the ability to travel, to communicate, and to transport goods more quickly and easily than ever before. Natural barriers that were difficult or dangerous to cross a hundred years ago can now be crossed easily. The barriers that people themselves make are not so easy to overcome. But in spite of all the different kinds of barriers, people continue to enjoy the travel and the exchange of goods and ideas.

　53.The examples in Paragraph 2 are used to tell the readers that _____.

　　A. people have been allowed to travel freely within the country.

　　B. People have not been permitted to travel freely for various reasons.

　　C. Travelers have to carry special papers such as passports and visas.

　　D. Customs posts are necessary at the borders of the countries.

　　54.Some governments limit the freedom of communication because _____.

　　A. they intend to keep their national secrets unknown to others.

　　B. they think such freedom will lead to wars.

　　C. they often disagree with each other on important matters.

　　D. they want to show their authority over communication.

　　55.We may learn from the passage that _____.

　　A. people do not care about the removal of barriers between countries.

　　B. people can not remove the obstacles made by themselves.

　　C. man-made barriers are sometimes harder to overcome than natural ones.

　　D. barriers should be taken for granted as they always exist.

　56.Which of the following can serve as the best title of the passage?

　　A. Barriers Made by People　　　　　　　 B. Functions of Communication

　　C. Restrictions on Transportation　　　　D. Progress of Human Society