题目内容
4.PM 2.5 does harm to people's health and the environment.(保持句意基本不变)PM 2.5 isharmful to people's health and the environment.
分析 --PM 2.5对人们的健康和环境有害.
--PM 2.5有害于人们的健康和环境.
解答 答案:harmful to.考查同义句."PM 2.5对人们的健康和环境有害.",可以表达为"PM 2.5有害于人们的健康和环境.",用be harmful to sb对某人有害,表示,答案是harmful to.
点评 同义句转换最基本的是要保持原意不变,在理解语境的基础上,抓住关键单词或词组,运用相同词意的单词或词组完成试题.
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