he wants to change his eating habit .he is much healthier than before.eating 为什么加ing,译全句

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he wants to change his eating habit .he is much healthier than before.eating 为什么加ing,译全句

他想改变吃饭习惯.现在他比以前健康多了.eat 本身是动词,不可以做habit(习惯)的修饰语(即定语),eating在句中用形容词的作用,即:吃饭的.
英语中动词的ing形式,有形容词的词性.例如:a swimming duck 一直游泳的鸭子 a driving car 一辆行驶的车.