托福写作：必知的高分句型主语从句

会计考友

主语从句。
　　Eg： What has caught our attention is /It is noticeable that the environment in both the rural and urban areas is deteriorating.

　　值得注意的是农村和城市的生态环境都在不断恶化。
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　　Eg： It is universally acknowledged that environmental pollution becomes one of the most serious problems in China or even the world as a whole.
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　　众所周知，环境污染问题是中国乃至世界面临的最为严重的问题之一。