核心问题
The recent issue of this periodical is worth ____. A. to read B. reading C. for you to read D. for you reading(全国研考) 在 worth 之后应当跟动词不动式,还是应当跟动名词?
词典解答
在sth.is worth doing结构里，worth之后只能跟名词或动名词，而不能跟动词不定式。注意，在worth doing这种句型里，doing并不表示主动意义，而是表示被动意义：
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The car isn't worth repairing. 这辆汽车不值得修理。
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What is worth doing is worth doing well. (Prov) 凡值得做的事情就值得把它做好。
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You're not worth helping. (LDCE) 你不值得帮助。
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He's worth listening to. (CGEL) 听他说话是值得的。
这种句型有时可以用 it is worth doing 来代替：
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The car isn't worth repairing. ~ It isn't worth repairing the car. (BEU) 这辆汽车不值得修理(修理这辆汽车是不值得的)。
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The cartons are worth saving. ~ It's worth saving the cartons. (CGEL) 硬纸盒值得保存。