优优班--学霸训练营 > 知识点挑题
全部资源
          排序:
          最新 浏览

          共50条信息

            • 1． Air pollution is a killer． The World Health Organization says it kills about seven million people around the world each year． Even if (1) （pollute） air does not kill us， it can make us very sick． (2) （wear） face masks， people walk past heavy traffic as Beijing is hit by a sandstorm． The government in Beijing issued a blue warning on air pollution as sandstorms swept through the Chinese capital city．
              However， breathing in dirty air (3) （frequent） may do more harm to your body， (4) can also affect your brain and your ability to think． A new study shows that air pollution can cause a huge decrease in our (5) （intelligent）．The researchers reported that long term suffering air pollution can affect a person"s mental abilities in two (6) （area）：language and math．
              The researchers studied about 25，000 people from across China． Between 2010 and 2014， these Chinese men， women and children (7) （give） language and math tests． The researchers found that breathing in (8) air which has been polluted can reduce a person"s education level by about one year． The effect generally is even (9) （bad）for those over years of age， for men and for those with little or no education． The researchers noted that the effect of pollution (10) language ability is even more serious as people age， especially among men and the less educated．
              难度：中等
              解析 收藏 试题篮
            0/40

            进入组卷