雅思词汇之“臭氧”能对你怎么样？

当人们的目光还聚焦在PM2.5的时候，臭氧已经悄然走进我们的生活了，让我们看下看似“无害”的臭氧究竟对人们有啥影响？

今天，高幸老师通过一篇来自《中国日报》的文章，告诉你能学到哪些实用的雅思词汇。

Ozone overtakes PM2.5 as the top pollutant in Beijing

From China Daily     Updated：2016-05-24

Warm days come with a downside, as masks can't stop pollutant at ground level in Beijing

【1】Excessive ozone gas has become the prime pollution problem in Beijing in recent days, replacing the notorious PM2.5, and it's likely to linger for a couple of days, the capital's environmental monitoring authority said on Monday.

【2】Because of the sunshine, many residents may not have noticed that ozone reached an alarming 242 micrograms per cubic meter at 2 pm on Sunday, according to the Beijing Environmental Monitoring Center.

【3】During warm weather, ground-level ozone increases. It is known to harm lung function and irritate the respiratory system. Exposure to ozone is linked to premature death, asthma, bronchitis, heart attack and other cardiopulmonary problems.

【4】On Monday, when clouds blocked the sun, PM2.5 particles returned as the dominant type of pollution in Beijing, the center said. But ozone is expected to return to No 1 on Tuesday and Wednesday.

【5】Different from the protective layer of ozone in the upper atmosphere, excessive ozone concentration at ground level is tied directly to health. Therefore, experts strongly suggest that people stay indoors around noon to avoid the gas, which, unlike particulate matter, cannot be blocked by protective masks.

【6】Ozone at ground level is generated mainly through complicated photochemical reactions. It is closely related to other air pollutants, such as volatile organic compounds and nitrogen oxides. Levels of ozone typically rise at midday due to strong sunshine and higher temperatures, said Chen Nianliang, a researcher at the monitoring center.

【7】Every summer, ozone concentration typically soars from May to August in Beijing, overtaking PM2.5 as the prime pollutant.

【8】PM2.5 refers to particulate matter 2.5 microns or less in diameter that harms health.

【9】Last year, the capital saw fewer than 60 percent of days with air quality meeting national standards in the four-month period, and only 35 percent of days in July had good air quality, according to the Ministry of Environmental Protection. The prime pollutant was usually ozone.

【10】Summer ozone pollution is not a problem only in Beijing; it has grown into a thorny issue nationwide, the ministry said.

【11】In 2015, the average ozone concentration in China's 74 major cities increased by 3.4 percent year-on-year, an increase of 7.9 percent over 2013, especially in the Yangtze River Delta region in the south, said Luo Yi, head of the environmental monitoring department at the ministry, in February.

【12】The complexity of air pollution is increasing and the problem requires more comprehensive efforts, the ministry said.

【13】In Beijing, the environmental watchdog has taken strict control on the emission of volatile organic compounds and nitrogen oxides, the key ingredients in ozone's toxic stew.

【14】In addition, the ministry has pushed measures to reduce ground-level ozone and promoted the success against ozone made by Shenzhen, Guangdong province.

雅思词汇Words and Expressions 【在线咨询更多雅思必考词汇】

1) notorious 形容词 臭名昭著的
2) be likely to可能
3) linger 动词 逗留，停留
4) alarming 形容词 使人害怕的，引起恐惧的
5) ground-level 地面（臭氧）
6) iIrritate the respiratory system 刺激呼吸系统
7) exposure to 暴露于…之中
8) be linked to 与…有关
9) premature death 过早死亡
10) particles 名词 颗粒
11) dominant 形容词 主导的，占优势的
12) protective layer 保护层
13) be tied to 与… 相关
14) generate 动词 产生
15) complicated 形容词 复杂的
16) be related to 与…相关
17) soar 动词 飙升
18) overtake PM2.5 as the prime pollutant 取代PM2.5成为首要污染物
19) refer to 涉及，指的是
20) meet national standards 达到国家标准
21) thorny 形容词 痛苦的，多刺的
22) nationwide 形容词 全国范围内
23) major city 主要城市
24) comprehensive 形容词 综合的，全面的
25) watchdog 名词 监管机构
26) ingredient 名词 成分，原料
27) push measures 推进一些措施

以上是新通外语高幸老师为大家分享的雅思词汇之臭氧怎么了，希望对烤鸭们有所帮助。

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