Mankind must first of all eat drink have shelter and clothing______ it can pursue politi

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Mankind must first of all eat, drink, have shelter and clothing______ it can pursue politics, science, art, religion, etc.

A.later

B.before

C.when

D.if

请帮忙给出正确答案和分析,谢谢!

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答案解析

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  • 正确答案:B
    这是before的一种特殊用法,意为“在……之前必须……才能……”,可译作“只有……才能……”,多用在must(haveto)…before…can…句型中。如:Onemustsowbeforeonecanreap.“只有播种才有收获。”Newideassometimeshavetowaitforyearsbeforetheycanbefullyaccepted.“有时新的思想必须等待多年后才能被人们完全接受。”