以下为部分英语四级选词填空原文及答案：
四级选词填空原文及答案
26 pollutants
27 restricted
28 consequence
29 innovation
30 detail
31 intended
32 outdoor
33 collaborating
34 inhabitants
35 creating
Air quality
Something in the air tonight
Tackling atmospheric pollution is hard。 More data will help
Print edition | Science and technology
Feb 13th 2016 | LOS ANGELES
SINCE the 1940s， southern California has had a reputation for smog。 Things are not as bad as once they were but， according to the American Lung Association， a health group， Los Angeles is still the worst city in the United States for levels of 26 ozone， nitrogen oxides， hydrocarbons and carbon monoxide。 Gazing down on the city from the Getty Centre， an art museum in the Santa Monica Mountains， haze can blot out the view of the Pacific Ocean。 Nor is the state’s bad air 27 restricted to its south。 Fresno， in the central valley， comes top of the list in America for year-round particulate pollution。 Residents’ hearts and lungs are strained as a 28 consequence。
All of which， combined with California’s reputation as the home of technological 29 innovation， makes the place ideal for developing and testing systems designed to monitor pollution in 30 detail。 And that is just what Aclima， a fledgling firm in San Francisco， has been doing over the past few months。 It has been trying out arrays of monitoring stations， some of them mobile， that are 31 intended to yield minute-to-minute maps of 32 outdoor air pollution。 Such stations will also be able to keep an eye on what is going on inside buildings， including offices。
The stations in Aclima’s arrays are triangular and measure 20cm along a side。 Each contains 12 off-the-shelf sensors that detect pollutants such as ozone， carbon monoxide and methane， as well as the small particles of which smog is composed。 They also monitor basic data such as temperature and humidity， which affect how pollution forms and lingers。 The elements of an array may be fixed and spaced according to what exactly they are trying to measure。 Or they can be attached to vehicles， so that entire roads can be sampled routinely。
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