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B
When Beijing is hit by smog, residents often joke that the Chinese capital needs to build giant fans to clear out the polluted air. Mountains to the north and west help trap smog in the city, and a strong wind from Mongolia is the surest way to ensure cleaner air.
Beijing officials are now considering ways to help that process. Though giant fans are not on the menu, at least not yet, city planners are looking at ways to create corridors (走廊)that encourage wind flow through the capital. The plan is inspired by research on urban heat islands, which shows that large buildings that block the wind are one of the causes of higher average temperatures in cities as opposed to those in the countryside.
“This isn’t controlling pollution. It’s shifting the problem.” Wang Bing, a Beijing-based author, wrote on Sina Weibo. But the plan has received some interest from residents who have grown tired of repeated periods of heavy pollution.
Peng Yingdeng, an air pollution expert at the Beijing Municipal Research Institute of Environmental Protection, told the newspaper that the plan was more likely to require an adjustment of related laws to limit building heights and numbers in some areas. Similar proposals are under consideration in other major Chinese cities including Hangzhou, Nanjing, Shenyang and Wuhan.
“This kind of work to search for ways to reduce pollution is really worth applauding,” the state-run news agency Xinhua said in a commentary. “If scientists confirm it is effective, then we should promote it on a much larger scale.”
Some experts have expressed doubts whether the plan would make a significant difference. Serious pollution is usually associated with periods of little or no wind, and air corridors do little good if the wind isn’t blowing, Song Guojun, an environmental science professor told The Beijing News. Solving the air pollution problem mainly requires controlling pollution sources.
24. Why do people say “the Chinese capital needs to build giant fans”?
A. Because the weather in Beijing is very hot.
B. Because they think air corridors are a good idea.
C. Because Beijing is surrounded by mountains.
D. Because the pollution is too serious.
25. What is Wang Bing’ s attitude towards the construction of air corridors?
A. Disapproval. B. Supportive.
C. Cautious. D. Optimistic.
26. Using air corridors to solve pollution problem largely depends on ______.
A. electricity B. wind
C. technology D. laws
27. What is the solution to pollution problem according to Song Guojun?
A. To build giants fans. B. To construct air corridors.
C. To control pollution sources. D. To take the cars off the road.
C
A “match of the century” between human champion of the Chinese board game Go (围棋) and Google’s computer program kicked off in Seoul on Wednesday, which drew great attention.
The first game of the five-game match started at about 1 p.m. local time (0400 GMT) at Four Seasons Hotel in central Seoul. It will run through next Tuesday to determine the winner between South Korean Lee Sedol, the world Go champion in the past 10 years, and AlphaGo, developed by Google’s London-based subsidiary DeepMind.
The match of the century drew great attention from news organizations, Go fans and the general public across the world as well as in South Korea as it is seen as a representative match between humans and artificial intelligence (AI).
The Korea Baduk Association, a body for South Korean Go professionals, had received advance applications for an explanatory event of the match, but the limit of 60 seats had already surpassed.
South Korea’s public broadcaster KBS plans to broadcast live the match from 12:40 to 5 p.m., extending its initial (最初的) plan to air it for two hours from 3 p.m. due to great interests from the general public. It is unusual for the public broadcaster to broadcast live the Go game for more than four hours.
Cable channel TV Chosun will broadcast the match’s development every 10 minutes on Wednesday and Thursday, while planning to air live the whole matches on Saturday and Sunday.
The match is being aired live through YouTube around the world, while various Internet websites and TVs are broadcasting the landmark match.
Hundreds of journalists from around the world gathered at the venue (体育比赛场所) to report on the match between Lee and AlphaGo.
AlphaGo took the world by surprise as it defeated European Go champion Fan Hui in October last year. Some experts had predicted it would take decades of years for AI to defeat humans at the ancient Chinese board game.
Go, which originated in China more than 2,500 years ago, has been viewed as a grand challenge for AI due to its complexity and intuitive nature. It involves two players, who take turns putting markers (围棋子) on a grid-shaped board to gain more areas on it. One can occupy the markers of the opponent by surrounding the pieces of the other.
28. What does the underlined phrase “kicked off” mean?
A. Started. B. Stayed. C. Closed. D. Finished.
29. Why did the match draw so much attention in the world?
A. Because the match was the first one between humans and AlphaGo.
B. Because it is seen as a representative match between humans and AI.
C. Because it would take decades of years for AI to defeat humans at the ancient Chinese board game.
D. Because many TVs broadcast live the game.
30. The following statements are true except _______.
A. there are five matches between South Korean Lee Sedol and AlphaGo
B. AlphaGo gave the world a surprise by defeating European Go champion Fan Hui in October last year
C. Go originated in China more than 2,500 years ago
D. cable channel TV Chosun will broadcast all the five games
31. What’s the best title of the passage?
A. Go match between human champion and Google’s AI draws wide attention
B. Humans challenge artificial intelligence
C. Human Go champion will defeat Google’s AI AlphaGo in Go games
D. Report competition from all over the world become fierce in Go games
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