Unit 16 The United States of America(2009· 西城 5 月抽样 ) 随着首都市民环保意识的增强及政府各项措施的落实，北京的空气质量得以明显提高。请据此并参照图示写一篇简报。其中应包括：空气质量变化情况；变化的原因 ( 如：绿化、减少污染的措施等 ) 和对今后的展望。注意： 1 ．文章开头已给出。2 ．词数不少于 60 。Beijing started the Blue Sky Project in 1998, when the city saw only 100 days of blue skies but 141 heavily polluted days.________________________________________________________________________________________________________________________________________________[ 参考答案 ]Beijing started the Blue Sky Project in 1998, when the city saw only 100 days of blue skies but 141 heavily polluted days. With the efforts of the Beijing government and citizens over these years, the air condition of the city has gradually improved.The number of blue skies climbed to 229 in 2004 while the heavily polluted days were greatly reduced to 17. The progress continued each year with an increase of 5 － 7 good days and decrease of 8 － 12 bad air days until the end of 2007, though there was an exception in 2006 with 24 days heavily polluted.The changing numbers are due to the fact that people become more and more aware of the enviroment around them. In addition, the government has continued with its measures. Air quality monitoring traffic control and tree planting are just some of the ways to improve the conditions.We believe that the city will see more blue skies and fewer air － polluted days in 2008 and thus ensure a “Green Olympics”. More people will be able to enjoy the blue skies in Beijing.Ⅰ. 重点单词1 ． ______(vt.) 供给；供应 (n.) 供给 ( 量 ) ； ( 常用复数 ) 供应 品；生活用品2 ． ______(adj.) 普遍的；分布广的3 ． ______(n.) 首领；上...
