Pigeons in London have a bad reputation. Some people call them flying rats. And many blame them for causing pollution with their droppings. But now the birds are being used to fight another kind of pollution in this city of 8. 5 million.
“The problem for air pollution is that it's been largely ignored as an issue for a long time,” says Andrea Lee, who works for the London-based environmental organization Client Earth. “People don,t realize how bad it is,and how it actually affects their health. '' London's poor air quality is linked to nearly 10,000 early deaths a year. Lee says, citing report released by the city manager last year, “If people were better informed about the pollution they're breathing,” she says,“they could pressure the government to do something about it. ''
Nearby, on a windy hill in London's Regent's Park, an experiment is underway that could help一the first week of flights by the Pigeon Air Patrol. It all began when Pierre Duquesnoy, the director for DigitasLBi, a marketing firm, won a London Design Festival contest last year to show how a world problem could be solved using Twitter. Duquesnoy, from France, chose the problem of air pollution.
“Basically, I realized how important the problem was,v he says. “But also I realized that most of the people around me didn't know anything about it. Duquesnoy says he wants to better measure pollution, while at the same time making the results accessible to the public through Twitter.
“So, ” he wondered, “how could we go across the city quickly collecting as much data as possible?” Drones （无人驾驶飞机）were his first thought. But it's illegal to fly them over London. “But pigeons can fly above London,right?” he says. “They live 一actually? they are Londoners as well. So, yeah, I thought about using pigeons equipped with mobile apps. And we can use not just street pigeons, but racing pigeons, because they fly pretty quickly and pretty low. ”
So it might be time for Londoners to have more respect for their pigeons. The birds may just be helping to improve the quality of the city's air.
28. What can we infer about London's air quality from paragraph 2?
A. Londoners are very satisfied with it.
B. The government is trying to improve it.
C. The government has done a lot to improve it.
D. Londoners should pay more attention to it.
29. Duquesnoy attended the London Design Festival to .
A.entertain Londoners B.solve a world problem
C.design a product for sale D.protect animals like pigeons
30. Why did Duquesnoy give up using drones to fly across London?
A.Because they are too expensive B.Because they fly too quickly.
C.Because they are forbidden. D.Because they fly too high.
3 l.Which can be the best title for the text?
A. London's New Pollution Fighter
B. London's Dirty Secret
C. Clean Air in London
D. Causes of Air Pollution in London

28. D 推理判断题。根据第二段“The problem for air pollution is that it's been largely ignored as an issue for a long time,"以及 People don't realize how bad it is, and how ithealth.可知，伦敦人应该更 关注伦的空气质。故选D项。
29. B 细节理解题。根据第三段 It all began when Pierre Duquesnoy, the director for DigitasLBi, a marketing firm, won a London Design Festival contest last year to show how a world problem could be solved using Twitter可知,Duquesnay参加伦敦设计节是为了解决一个世界性的问题。故选B 项。
30. C 细节理解题。根据第五段 But it's illegal to fly them over London.由此可知,Duquesnoy 初想 用无人机飞跃伦敦检测空气质量，但是因为市内禁止无人机飞行所以他放弃了这个想法。故选C 项。
31. A 标题归题。根据第一段 But now the birds are being used to fight another kind of pollution in this city of 8. 5 million.和最后一段 So it might be time for Londoners to have more respect for their pigeons. The birds may just be helping to improve the quality of the city's air.这些关键句可 知,Duquesnoy用鸽子检测空气质量、引导人们关注空气污染，鸽子成了伦敦新的环保战士。