2018年6月四六级真题答案※ 微信对答案 ※ 万题库估分

　　Since the 1940s, southern California has had a reputation for smog. Things are not as bad as they once were but, according to the American Lung Association, Los Angeles is still the worst city in the United States for levels of  26  .Gazing down on the city from the Getty Center, an art museum in the Santa Monica Mountains, one would find the view of the Pacific Ocean blurred by the haze(霾).Nor is the state’s bad air  27  to its south. Fresno, in the central valley, comes top of the list in America for year-round pollution. Residents’ hearts and lungs are affected as a  28  .

　　All of which, combined with California’s reputation as the home of technological  29  ,makes the place ideal for developing and testing systems designed to monitor pollution in  30  .And that is just what Aclima, a new firm in San Francisco, has been doing over the past few months. It has been trying out monitoring that are  31  to yield minute-to-minute maps of  32  air pollution. Such stations will also be able to keep an eye on what is happening inside buildings, including offices.

　　To this end, Aclima has been  33  with Google’s Street View system. Davida Herzl, Aclima’s boss, says they have revealed pollution highs on days when San Francisco’s transit workers went on strike and the city’s  34  were forced to use their cars. Conversely, “cycle to work” days have done their job by  35  pollution lows.

　　26. 答案M

　　解析：空前介词，空格填名词，结合语义，M选项正确。

　　27. 答案N

　　解析：固定搭配be restricted to，N选项正确。

　　28. 答案C

　　解析：空前不定冠词，空格填名词，固定搭配as a consequence，表示“因此”，C选项正确。

　　29. 答案J

　　解析：空前形容词，空格填名词，结合语义，J选项正确。

　　30. 答案F

　　解析：空前介词，空格填名词，固定搭配in detail，表示“详细地”， F选项正确。

　　31. 答案K

　　解析：固定搭配be intended to，结合语义，K选项正确。

　　32. 答案L

　　解析：空前介词，空后名词，空格填形容词，结合语义，L选项正确。

　　33. 答案B

　　解析：结合时态和固定搭配collaborate with，B选项正确。

　　34. 答案I

　　解析：空前所有格，空格填名词，结合语义，I选项正确。

　　35. 答案E

　　解析：空前介词，空后名词，空格填动词ing，结合语义，E选项正确。

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