According to the World Health Organization, air pollution kills about________around the world each year.

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问题 According to the World Health Organization, air pollution kills about________around the world each year.
Air pollution is a killer. The World Health Organization says it kills an estimated seven million people around the world each year. Even if polluted air does not kill us, it can make us very sick. However, breathing dirty air may do more than hurt your body. It can also affect your brain and your ability to think.
   A new study shows that air pollution can cause a "huge" reduction in our intelligence. The study was a project involving researchers at Peking University in China and Yale University in the United States. The researchers reported that long-term exposure to air pollution can affect a person’s mental abilities in two areas: language and mathematics.
   The researchers studied about 25, 000 people from across China. Between 2010 and 2014, these Chinese men, women and children were given language and math tests. Then researchers compared the test results with measurements of pollution in the air, namely nitrogen dioxide and sulfur dioxide.
   Xi Chen of the Yale School of Public Health led the study. He and his team found that breathing polluted air can reduce a person’s education level by about one year. Chen said that the effect generally is worse for those over 64 years of age, for men and for those with little or no education. "The older persons — they are more affected. And we find, quite interestingly, males are more affected than females. And people working outdoors are more affected than people working indoors. "
   The researchers noted that the effect of pollution on verbal ability is even more serious as people age, especially among men and the less educated.
   In May 2018, the WHO reported that nine of every 10 people worldwide are breathing polluted air. The study we described earlier found that people who work outdoors fall into a high-risk group. However, that does not mean those who work inside buildings are safe from air pollution.

选项 A、7 million people
B、25 million people
C、33 million people
D、17 million people

答案A

解析 数字信息的找寻和判断。B选项中的数字属于干扰选项。原文中并没有出现与数字“25 million”相关的信息,只是在“The researchers studied about 25,000 people from across China”这个句子中出现了“25,000”这个数字。此外,本题询问的是“全球每年死于大气污染的人数大约是多少”,而原文中提到的是“研究对象大约为25 000人”。因此,B选项属于无中生有。C选项中的数字也属于干扰项。D选项“17 million”是对原文信息“The World Health Organization says it kills an estimated seven million people around the world each year”中提到的数字“7 million”进行干扰,在读音上容易让学生误选。正确选项A与原文“The World Health Organization says it kills an estimated seven million people around the world each year”中提到的数字信息一致,即“世界卫生组织声称全球每年大约有7 000 000人死于大气污染”。
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