A. Illegal hunting has caused a decrease in the number of sea turtles. B. Most turtles are eaten by Mexicans and Mexican Americans. C. A campaign to protect sea turtles. D. Many sea turtles are killed for people"s eating turtles in a religious observance. E. Government should prevent sea turtle hunting to increase the number of the species. F. A letter was written to Pope to save endangered sea turtles. |
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An allergy (过敏反应) is a strong reaction to a substance. Many things can cause allergies. The most common cause is pollen (花粉), which is usually produced by trees in the spring, grasses in the summer and weeds in the fall, as part of their reproductive process. Other causes include organisms, chemicals, plants and dead skin particles (微粒) from dogs and cats can also cause allergic reactions. So can insect stings and some food. The most common kind of allergic reactions is itchy (痒的), watery eyes and a blocked or watery nose. Allergies can also cause red, itchy skin. Some reactions can be life- threatening, for example, when breathing passages become blocked. It is not always easy to avoid allergies. Drugs may offer an effective treatment. Another treatment used in some cases is called immunotherapy (免疫疗法). A patient is injected with small amounts of the allergy-causing substance. The idea is that larger and larger amounts are given over time until the patient develops a resistance in his body. In the United States, experts estimate that up to 8% of young children have food allergies. Every year these allergies cause about 30,000 cases with severe reactions that require immediate treatment. It can result in breathing trouble and in some cases death. It is said that about 100 to 200 people will die. It says most of the reactions are caused by peanuts and tree nuts like walnuts. People can also be allergic to medicines. The American Academy of Allergy, Asthma and Immunology says about 10% of bad reactions to commonly used medicines are allergic. In other words, a person"s immune system overreacts and produces an allergic reaction. The most common reactions include skin rashes (皮疹), itching, breathing problems and swelling in areas such as the face. |
1. Allergies seldom occur in winter because _____. |
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A. plants don"t flower in cold weather B. people usually wear thick clothes C. pollen is active below freezing point D. the weather is not too cold for viruses |
2. What will happen if one"s breathing passages get blocked? |
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A. It is nothing serious. B. One"s life is at risk. C. One has to be sent to hospital. D. One is sure to breathe easily. |
3. According to immunotherapy, the patient is supposed to _____. |
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A. take some medicines to produce antibodies B. have immediate operations C. be given the allergy-causing substance until he develops a resistance D. be exposed to enough allergy-causing substances |
4. The best title would be "_____". |
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A. The ABCs of Allergies B. The Cause of Allergies C. The Treatment of Allergies D. The Prevention of Allergies |
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Living in a green area can make you live longer, according to research published today. The research also shows that the difference in life expectancy (预期寿命) between rich and poor becomes smaller among those who live in an environment with parks and trees. Richard Mitchell, from Glasgow University, and his colleagues, found that the gap between the number of deaths of people on high incomes and the number of deaths of those on low incomes in green areas was half that compared with figures relating to built-up areas. Green spaces, classified by the researchers as "open, undeveloped land with natural vegetation", encouraged people to walk and be more active. Exercise in these settings could have greater benefits than exercise elsewhere, the researchers said. The benefits potentially go beyond exercise. Studies have shown that being around green spaces can reduce blood pressure and stress levels, and possibly help patients recover faster. A number of researchers have looked at the effects of greenery on our well-being. But few studies had looked at whether living in green areas reduced health inequalities, the Glasgow team said. Using information from a land-use database of 2001, the researchers divided the pre-retirement population of England into four groups according to income level, and five groups according to access to green space. They then looked at death rate for 2001~2005. They found that the inequality in death rate from all causes relating to lack of money was less in those populations in the greenest areas compared with the figures for people living in more built-up places. They found an even stronger relationship when it came to deaths from certain diseases such as heart conditions and stroke (中风). There was no difference, however, in deaths from lung cancer. The researchers said that changing the physical environment was an easier way to fight against poor health than using media campaigns or giving out information on health. "The result of the study is clear: Environments that promote good health might be very important in the fight to reduce health inequalities." |
1. The underlined word "that" in Paragraph 2 refers to _____. |
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A. the gap B. the number of deaths C. the income D. the living area |
2. What was the special point of the Glasgow team"s research? |
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A. They offered a scientific definition of "green spaces". B. They encouraged people to exercise in green areas. C. They studied the effects of greenery on people"s health. D. They focused on the influence of greenery on health inequalities. |
3. What advice would the researchers probably give according to the last paragraph? |
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A. More health information should be given to the public. B. People should take more exercise every day. C. More trees and grass should be planted in cities. D. People should help to fight against health problems. |
4. What is the main idea of the passage? |
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A. People should live in green areas. B. Green spaces promote good health. C. Income influences health less than environment. D. Exercise in green areas benefits people a lot. |
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One day last September, as Britney Spears was about to board a flight to Los Angeles from London, a blue bottle fell out of her purse. She quickly put it back in, but not before the camera recorded the event. Neither Spears nor her spokesman was willing to comment on the contents of the bottle, but the next morning London"s Daily Express published a page of pictures under the headline "EXCLUSIVE: POP PRINCESS SPOTTED AT AIRPORT WITH POT OF SLIMMING TABLETS. " Spears was apparently carrying Zantrex-3, one of the most popular weight-loss pills now sold in the United States. The pill, which is sold at about fifty dollars for a month"s supply, contains a huge amount of caffeine, some green tea, and three common South American herbs that also act as stimulants (兴奋剂). It hit the U.S. market last March and has had a success that would be hard to overstate. Millions of bottles have been sold, and during the Christmas season it was displayed in the windows of the nation"s largest chain of vitamin shops, G.N.C. (It is so highly sought after that many of the stores keep it in locked counters.) Zantrex-3 is also sold at CVS, Rite Aid, Wal-Mart, and other chains, and over the telephone and on the Internet. If you type "Zantrex" into Google, more than a hundred thousand pieces of information about it will appear. At any moment, there are scores of people sell it on eBay. Perhaps the most interesting thing about the success story of Zantrex-3, however, is that it is far from unique.There are hundreds of similar products on the market today, and they are bought by millions of Americans. And though Zantrex"s producer makes some exciting statements ("the most advanced weight control compound (化合物) period"), so do the people who sell Stacker 2 and Anorex along with those who sell Carb Eliminator and Fat Eliminator. Almost all of these compounds suggest that they can help people lose weight and regain lost energy, and often without diet, exercise, or any other effort. |
1. Britney Spears is a / an _____. |
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A. dancer B. singer C. athlete D. chemist |
2. Which of the following is also a kind of weight-loss pill? |
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A. CVS B. Rite Aid C. Wal-Mart D. Anorex |
3. The underlined part of the sentence in the first paragraph is most likely similar in meaning to _____. |
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A. it is difficult to say how successful Zantrex-3 is B. you can"t overstate the success of Zantrex-3 C. you can"t think too highly of the success of Zantrex-3 D. Zantrex-3 is not very successful |
4. From the second paragraph we know that _____. |
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A. Zantrex-3 is one of the successful weight-loss pills on the US market B. Zantrex-3 is the most successful weight-loss pills on the US market C. Zantrex-3 is the only weight-loss pill on the US market D. there are five kinds of weight-loss pills on the US market |
5. The text mainly tells us _____. |
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A. when Britney Spears was found taking weight-loss pills with her B. how Zantrex-3 became successful in the USA C. weight-loss pills are very popular in the USA D. Zantrex-3 is forbidden to be sold on the US market |