ⅰ.语法单句填空 1．people say that young chinese students' eyesight keeps dropping ________(sharp) because of both too much homework and poor learning conditions. 答案：sharply 句意为：有人说中国青年学生的视力持续急剧下降是因为太多的作业和不良的学习条件。sharply意为“急剧地”。 2．with the word “pm2.5” ________(constant) appearing in media reports, people pay greater attention to it and seek health tips for smoggy days. 答案：constantly 句意为：随着pm2.5词在媒体上的持续出现，人们更加关注这个话
