题目
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Garland"s research team reviewed 63 studies, including several large long-term ones, on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. “There"s nothing that has this ability to prevent cancer,” he said, urging governments and public health officials to do more to fortify (增强) foods with vitamin D. Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health. Vitamin D is found in milk, as well as in some fortified orange juice, yogurt and cheeses, usually at around 100 international units（IU）a serving. “People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day” Garland said， adding that it was well within the safety guidelines established by the National Academy of Sciences.
The authors said that taking more vitamin D could be especially important for people living in northern areas, which receive less vitamin D from sunshine.
“African Americans, who don"t produce as much of the vitamin because of their skin colour, could also benefit significantly from a higher intake,” the authors said.
61. According to the passage, people are advised to take more Vitamin D, because__.
A. it is nutritious B. it can‘t harm people’s health
C. it can lower cancer risk D. it is not taken enough every day
62. Which of the following can not help people get more Vitamin D?
A. Have some sunshine B. Have more meat
C. Have more fortified cheese D. Have a vitamin supplement
63.Who can Garland probably be?
A. A health researcher B. A doctor
C. A scientist D. A public health official
64.Which of the following food can lower people‘s chance of getting cancer?
A. Milk B. Fortified orange juice
C. Fortified yogurt D. All of the above
65.People from which area should take more Vitamin D according to the passage?
A. Asian people B. African people
C. American people D. European people
答案
解析
核心考点
试题【Cancer researchers urged people on Wednesday to take more vitamin D to lower ris】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
第三部份：阅读理解（共两节，满分50分）
第一节，阅读下列短文，从每题所给的四个选项（A、B、C、D）中，选出可以填入空白处的最佳选项，并在答题卡上将该选项涂黑。（共20小题，每小题2分，满分40分）
A
Here is how your health risks increase at different BMIs(体重指数) if your waist circumference（腰围） is higher than 40 inches（102 cm） in men and 35 inches （88 cm） in women:
·If your BMI is in the 18.5 to 24.9 range, or “Normal”, then a larger waist that is near or greater than 40 inches for men and 35 inches for women can indicate that you are at “increased” risk.
·If your BMI is in the 25 to 29.9 range, or “Overweight”, then a larger waist (less than or equal to 40 inches for men and 35 inches for women) can indicate that you are at “increased” risk. Above these sizes,the risk is considered “high”.
·If your BMI is in the 30 to 34.9 range, or “Obese(肥胖症)I”, then a larger waist (less than or equal to 40 inches for men and 35 inches for women) can indicate that you are at “high” risk. Above these sizes, the risk is considered “very high.”
·If your BMI is in the 35 to 39.9 range, or “Obese II”, then a larger waist (less than or equal to 40 inches for men and 35 inches for women) can indicate that you are at “very high” risk. Above these sizes, the risk is still considered “very high”.
·If your BMI is or in the 40 + range, or “Obese III”, then a larger waist (less than or equal to 40 inches for men and 35 inches for women) can indicate that you are at “extremely high” risk. Above these sizes, the risk is still considered “extremely high”.
41．People’s BMIs fall into ______ ranges.
A．3 B．4 C．5 D．6
42．How can we judge a man’s health risk according to the passage?
A．By his BMI.
B．By his waist circumference.
C．From neither his BMI nor his waist circumference.
D．From both his BMI and his waist circumference.
43．If a woman’s BMI is 35 and her waist is 34, we can consider her health risk is _____.
A．normal B．high C．very high D．extremely high
44．The best title for this passage might be _____.
A．What Having a Bigger Belly Means.
B．High Risks.
C．Measuring Belly Fat.
D．Are You at High Risk?
E
Although we already know a great deal about flu, and although the World Health Organization is constantly collecting detailed information from its chain of flu reference laboratories throughout the world, it is extremely difficult for epidemiologists, who study infectious diseases, to predict when and where the next flu epidemic will occur, and how serious it will be. There are three kinds of flu virus, known as A, B and C. Flu C virus is relatively stable and causes mild infections that do not spread far through the population. The A and B types are unstable, and are responsible for the epidemics that cause frequent concern. Following any virus attack, the human body builds up antibodies （抗体） which can be changed into immunity to that type of virus but a virus with the ability to change its character is able to bypass this protection. Variability（可变性） is less developed in the flu B virus, which affects only human beings. Flu B virus may cause a widespread epidemic but will have little effect if introduced into the same community soon afterwards, since nearly everyone will have built up antibodies and will be immune. The flu A virus, which affects animals also, is extremely unstable and is responsible for some of the worst outbreaks of the disease, such as the world epidemic, of 1918 and 1919, when about half the world’s population were infected and about twenty million people died, some from pneumonia caused by the virus itself and some from secondary complication caused by bacteria. Accurate prediction is difficult because of the complication of the factors. A particular virus may be related to one to which some of the population have partial involved immunity. The extent to which it will spread will depend on factors such as its own strength, or virulence （病毒性）, the ease with which it can be transmitted and the strength of the opposition it encounters （遇到）. Scientists, however, have a reliable general picture of the world situation. 72. Which of the following is the most appropriate title for the passage? A. Symptoms of Flu B. Man VS Flu Virus C. WHO: The Major Organization against Flu Virus D. Variability of Flu Virus 73. What does the author say about the flu B virus? A. B Virus is relatively stable and causes mild infections that do not spread far through the population. B. B Virus is unstable, and is responsible for the epidemics that cause frequent concern. C. B virus is extremely unstable and is responsible for some of the worst outbreaks of the disease.
D. B virus has a very developed variability, and it affects only human beings. 74. Which of the following is NOT mentioned as a factor contributing to the extent to which a virus spreads?A. The strength of the virus. B.The ease with which the virus can be transmitted. C. The strength of the opposition. D.The immunity the virus can bring about. 75. This article is quite probably ________.A. a piece of news B. a special science reportC. an introduction to a disease D. a scientific fiction Many Chico State students have learned of the convenience of small motorcycles and scooters when it comes to parking on or near campus. Motorcycle parking is something that is available when compared to the amount of vacant automotive parking—something especially valuable when running a bit late for class. Motorcycle-riding students have also learned to appreciate the 50 to 80 average miles per gallon, especially today when it seems as if gasoline prices are shooting up faster and more often than a back alley addict.
Still, some people are reluctant to ride the steel horse. Marc Lewis, a 24-year-old Chico State anthropology student, is one of those people. “I’ve had motorcycles in the past. I know what they’re about. I want another one, for recreational purposes,” Lewis said. The only things holding Lewis back are insurance costs and what he refers to as “unsafe drivers”. Safety and insurance costs certainly are important factors.
Chris Kelley, employee of Cost-U-Less Insurance Center at 166 Cohasset Road, Suite 3, admits that motorcycle insurance can get pricey. The average price per month for Chico State students in their 20s is about $100, Kelley said. “The most expensive rate I’ve ever charged was something like $32,000 a year,” Kelley said. “The guy had a horrible record.”
If a motorcycle is something that you’ve always been curious about but have been frightened by the dangerous image it is often given, try rethinking your position. Motorcycling is one of the most diverse activities in existence. Consider the information you find here a brief introduction to several of the more popular aspects of motorcycle riding.
44. When it comes to motorcycles, one tends to think of ____.
A. a late night in Downtown Chico B. the horse made of steel
C. the money paid for insurance D. a horrible image motorcycles give
45. According to the second paragraph, which of the following is NOT true?
A. It is very convenient for students to ride motorcycles.
B. The campus has enough parking place for motorcycles.
C. Students are often late for class riding motorcycles.
D. Motorcycles consume less gasoline.
46. Why are some people unwilling to ride the steel horse?
A. Because they often have their bones broken.
B. Because they are worried about the costly insurance and safety problems.
C. Because they have to pay for the pricey gasoline.
D. Because they don’t want to ride it for entertainment.
47. The writer intends to tell us in the last paragraph that ____.
A. we shouldn’t buy a motorcycle due to the danger it causes
B. many people are frightened by the dangerous image
C. we shouldn’t be curious about the motorcycle any more
D. motorcycles are still popular regardless of the disadvantages
The report, released on Wednesday, was treated as the first overall look at the global health burden from UV radiation, which is linked to up to 90 percent of melanoma（恶性黑色素瘤） and other skin cancers. UV radiation can also cause sunburn, more rapid skin aging, eye diseases, and reactivation of the herpes（疱疹） virus that causes cold sores, and pterygium, a fleshy growth on the surface of the eye.
“We all need some sun, but too much sun can be dangerous—and even deadly,” said Dr Maria Neira, the director of WHO’s agency of public health and the environment, who released the report.
To prevent cancer and other diseases linked to UV radiation, the agency recommends that people:
— Limit time in the midday sun.
— Use shade wisely and seek shade when UV rays are most intense.
— Wear protective clothing, hats and sunglasses.
— Use sunscreen with a sun protection factor 15+.
— Avoid sunlamps and tanning parlours.
People under age 18 should not use them at all.
“The application of sunscreens should not be used to prolong sun exposure but rather to protect the skin when exposure is unavoidable,” the report warned.
The report also noted that the ground’s surface can make a difference:
— Fresh snow reflects as much as 80 percent of ultraviolet light.
— Sea foam reflects about 25 percent.
— Dry beach sand reflects about 15 percent.
Small amounts of exposure to the sun help the skin to produce vitamin D.
48. The report was highly spoken of mainly because ____.
A. it had listed up to 60,000 deaths from UV radiation
B. it related the deaths to UV radiation
C. it showed the advantages and disadvantages of UV
D. it found out the approaches to preventing deaths from UV radiation
49. According to Dr Maria Neira, which of the following is TRUE?
A. In fact we need only a small amount of sunlight.
B. Receiving large amounts of sunlight will cause deaths.
C. Midday sunlight has stronger UV radiation.
D. Melanoma will disappear if we follow the report’s advice.
50. As a construction worker, it is strongly recommended that ____.
A. he should stay inside the building B. he spread sunscreen on the face
C. he should wear good sunglasses D. he be equipped with sun protection
51. Which of the following can be the headline of the passage?
A. UV—A Deadly Killer From The Sun B. Melanoma Can Be Prevented Today
C. UV—A Great Need For Vitamin D D. Teenagers Mustn’t Stay Outside
D
To what degree can a computer achieve intelligence (智力)? The answer to this question may lie in a newly-developed US computer program called Smarter Child and the Internet．
If you ran into Smarter Child online , you would be surprised at this kid’s huge memory．It can recite many facts． For example , Smarter Child knows every baseball player in every team this season．
He knows every word in the dictionary and the weather in every major city areas across the US．However , if you ask Smarter Child other questions , you get stranger answers．A question about Smarter Child’s age returns． “One year, 11 days, 16 hours, 7 minutes, and 47 seconds!” Asking where he lives gets , “In a clean room in a high-tech building in California．”
Smarter Child uses the vast information on the World Wide Web as his memory bank．To answer questions about spelling , for instance , Smarter Child goes to American Heritage Dictionary online．For the weather , he visits www．intellicast．com．
Some scientists believe that by joining the many systems of the Internet , an artificial being with the combined knowledge of , say , Albert Einstein, Richard Nixon and Britney Spears could be born．However if Smarter Child wants to think and learn on his own like the boy-computer David in the movie A．I．, Artificial Intelligence , he must overcome two problems．
The first is that computers find it difficult to read web pages because the files are labeled in different ways．That’s why programmers need to tell Smarter Child where to look for the weather．It would be a much more difficult task to let him find it himself．
Another problem is that while Smarter Child can process (处理) information more exactly and faster than any human , he lacks common sense—a basic grounding of knowledge that is obvious to any young child．
67．From the text we can infer that www．intellicast．com is a website___________．
A．which is specially designed to help Smarter Child
B．where we people can find Smarter Child
C．where weather forecasts are made
D．which is about artificial intelligence
68．It is probably most difficult for Smarter Child to_______．
A．tell us how to spell a difficult word
B．tell us how the American government is run
C．provide us with a famous poem by Shakespeare
D．learn how to tell right behaviors from wrong ones。
69．Which of the following is TRUE according to the text?
A．Smart Child has his own memory bank big enough for all kinds of information．
B．A．I．Artificial Intelligence is probably the name of a film about a boy-computer．
C．Smart Child can recognize different files and find information needed on his own．
D．We have similar product now which has the knowledge of Einstein , Nixon and Spears．
70．Which of the following is the best title for the passage?
A．A New Web Child B．Smarter Child
C．The Future of Internet D．Intelligence Development
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