2．Protecting the environment is beneficial （有益） to the society and the people．

分析 保護(hù)環(huán)境對社會和人民是有益的．

解答 答案：beneficial 考查首字母填空．根據(jù)句意及句子結(jié)構(gòu)，要填入beneficial，意為"有益的"，是形容詞作表語．

點(diǎn)評 考查首字母填空．準(zhǔn)確地翻譯句子、理解句子，然后根據(jù)句意及提示完成句子，使句意更通順．

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