阅读专题训练2.doc
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1、高二英语:阅读专题训练(2)(新人教版必修3)AA little under one-third of U.S. families have no Internet access and do not plan to get it, with most of the holdouts seeing little use for it in their lives, according to a survey released on Friday.Park Associates, a Dallas-based technology market research firm, said 29 pe
2、rcent of U.S. families, or 31 million homes, do not have Internet access and do not intend to subscribe(预订)to an Internet service over the next 12 months. The second annual National Technology Scan conducted by Park found that the main reason why potential customers say they do not subscribe to the
3、Internet is because of the low value to their daily lives rather than concerns over cost.Forty-four percent of these families say they are not interested in anything on the Internet, versus just 22 percent who say they cannot afford a computer or the cost of Internet service, the survey showed. The
4、answer “Im not sure how to use the Internet” came from 17 percent of participants who do not subscribe. The response “I do all my e-commerce shopping and YouTube-watching at work” was cited by 14 percent of Internet-access users. Three percent said the Internet doesnt reach their homes.The study fou
5、nd U.S. broadband adoption grew to 52 percent over 2006, up from 42 percent in 2005. Roughly half of new subscribers converted(转变)from slower-speed, dial-up Internet access while the other half of families had no prior access.“The industry continues to chip(击破)away at the core of non-subscribers, bu
6、t has a long way to go,” said John Barrett, director of research at Parks Associates. “Entertainment applications will be the key. If anything will pull in the holdouts, its going to be applications that make the Internet more similar to pay-TV,” he predicted.41. What does the underlined word “holdo
7、uts” in the first paragraph most probably mean?A. some American familiesB. those who hold out ones opinionsC. those who have been surveyedD. those who still havent access to the Internet currently42. Many potential customers refuse to subscribe to the Internet mainly because _.A. they show too much
8、concern about the cost B. they can find little value of itC. they do most YouTube-watching at work D. the Internet doesnt reach their homes43. From the passage we can infer that _.A. It is not an easy job to transform those holdouts into the Internet usersB. people will adopt dial-up Internet access
9、 no moreC. many Americans enjoy doing e-commerce shopping at homeD. more than half of the population are using the Internet in 200544. According to John Barrett, what is the key to attracting more U.S. families to broadband service?A. making the Internet look more similar to TV setB. applying the In
10、ternet more to entertainmentC. providing more pay-TV programsD. chipping away at the core of non-subscribers45. Which is the best title for the passage?A. Web develops with technologyB. The present situation of webC. Many Americans see little point to webD. It is urgent to promote web serviceBAgains
11、t the supposition than forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.This finding suggests that taking steps to prevent northern forest to limit the release
12、of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over next several centuries as result of a longer fire season. Sunlight taken in by t
13、he earth tends to cause warming, while heat mirrored back into space tends to cause cooling.This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenh
14、ouse gases from burning trees and plants are released into the atmosphere and thus trap heat.Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone(臭氧)levels increased, and ash from the fire fell on far-off sea ice, darkening th
15、e surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling.“We need to f
16、ind out all possible ways to reduce the growth of greenhouse gases in the atmosphere.” Scientists tracked the change in amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in north
17、ern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicated, 0.5 watts per square meter of area
18、 burned are soaked up by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.46. According to the new findings, taking steps to prevent northern fo
19、rest fires may _.A. result in a warming climateB. cause the forest fires to occur more frequentlyC. lead to a longer fire seasonD. protect the forests and the environment there47. The following are all the immediate effects after a forest fire EXCEPT _.A. large amounts of greenhouse gases enter the
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