Eating lots of fruit and vegetables is good for us1、为什么要用eating?2、fruit and vegetables为什么vegetables加了s,而fruit没有?3、用了fruit and vegetables,be动词还用is么?

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Eating lots of fruit and vegetables is good for us1、为什么要用eating?2、fruit and vegetables为什么vegetables加了s,而fruit没有?3、用了fruit and vegetables,be动词还用is么?

Eating lots of fruit and vegetables is good for us1、为什么要用eating?2、fruit and vegetables为什么vegetables加了s,而fruit没有?3、用了fruit and vegetables,be动词还用is么?
Eating lots of fruit and vegetables is good for us
1、为什么要用eating?
2、fruit and vegetables为什么vegetables加了s,而fruit没有?
3、用了fruit and vegetables,be动词还用is么?

Eating lots of fruit and vegetables is good for us1、为什么要用eating?2、fruit and vegetables为什么vegetables加了s,而fruit没有?3、用了fruit and vegetables,be动词还用is么?
Eating lots of fruit and vegetables(动名词主语) is(系动词) good for us(形容词词组作表语)
1. Eating lots of fruit and vegetables 是动名词主语, eat 如不加ing 就不具备名词性质,不能做主语
3. fruit 是水果的总称, 没有复数. vegetables用复数指各种蔬菜
4. 主语不是fruit and vegetables. fruit and vegetables作Eating 的宾语, 和Eating 一起组成动名词短语,做主语.动名词做主语时谓语用单数


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