大学英语四级词汇理解专项强化真题试卷2
词汇理解
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【C1】______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【C2】______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【C3】______.
All of which, combined with California\’ s reputation as the home of technological【C4】______, makes the place ideal for developing and testing systems designed to monitor pollution in【C5】______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 stations that are【C6】______to yield minute-to-minute maps of【C7】______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【C8】______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【C9】______were forced to use their cars. Conversely, \\
1.【C1】
M
解析：空格前为介词of，故本空需要填入一个名词。结合句意可知，据美国肺脏协会的统计，从污染物等级来看，洛杉矶仍然是美国最糟糕的城市。备选项中只有pollutants(污染物)与前文形成衔接，更加符合文章意思，故答案为M。
2.【C2】
N
解析：分析句子结构，空格位于以nor开头的倒装句中。空格前有be动词is，空格后有介词to，因此空格处需要填入一个动词的过去分词形式。结合句意可知，加利福尼亚州的恶劣空气也不局限于其南部。备选项中只有restricted(限制)意思相近，符合题意，故答案为N。
3.【C3】
C
解析：空格前为不定冠词a，故本空需要填入一个以辅音音素开头的名词。结合句意可知，位于中央谷地的弗雷斯诺，在美国全年污染排行榜上名列榜首。居民的心脏和肺部因此受到影响。很显然，居民的心脏和肺部受影响是污染的结果。备选项中只有consequence(结果)符合句意，故答案为C。
4.【C4】
J
解析：空格前是形容词technological，故本空需要填入一个名词。结合句意可知，所有这些与加州作为技术创新之乡的美誉相结合，使其成为开发和测试系统的理想之地。备选项中只有innovation(创新，革新)符合句意，故答案为J。
5.【C5】
F
解析：空格前为介词in，故本空需要填入一个名词。结合句意可知，这些系统旨在详细监测污染。备选名词中只有detail(细节)能跟介词in构成固定搭配in detail，意为“详细地”，故答案为F。
6.【C6】
K
解析：空格前为be动词are，空格后为介词to，由此推断出空格处需要填入一个动词的过去分词形式。结合句意可知，该公司一直在试验监测站，预计能实时绘制室外空气污染图。备选动词中只有intended(打算，计划)符合句意，故答案为K。
7.【C7】
L
解析：空格前是介词of，空格后是名词词组air pollution，因此本空需要填入一个形容词作定语。结合句意可知，监测站预计能实时绘制室外空气污染图。备选项中只有outdoor(户外的)与下文提及的建筑物内发生的情况形成对比，符合句意，故答案为L。
8.【C8】
B
解析：空格前为be动词been，空格后为介词with，故本空需要填入一个动词的现在分词形式。结合句意可知，Aclima一直在与谷歌的街景系统合作。备选项中只有collaborating(合作)符合题意，故答案为B。
9.【C9】
I
解析：空格前为名词所有格city’s，空格后为be动词were，故本空需要填入一个名词。结合句意可知，当旧金山的公交系统工人罢工，城市居民被迫使用汽车的时候，系统就会显示出污染高峰。备选名词中只有inhabitants(居民)符合句意，故答案为I。
10.【C10】
E
解析：空格前为介词by，空格后为名词词组，因此本空需要填入一个动词的现在分词形式。结合句意可知，“骑车上班”的日子则会创造污染低谷。备选动词中只有creating(创造)既符合词性要求又符合句意，故答案为E。
Millions die early from air pollution each year. Air pollution costs the global economy more than $5 trillion annually in welfare costs, with the most serious【C1】______occurring in the developing world.
The figures include a number of costs【C2】______with air pollution. Lost income alone amounts to $225 billion a year.
The report includes both i
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