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There were lots of thngs to do .There were lots of thngs doi

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There were lots of thngs to do .There were lots of thngs doing.I have lots of things to do
我在练习册上见到的.句子后的do什么时候用动词不定式,什么时候用doing啊
There were lots of thngs to do .There were lots of thngs doi
(1)doing形式是动名词,也可以说是现在分词,表示已经做过的事,主动语态.to do表示未做过的事或将要做的事,主动语态.
(2)done表示做过的事,被动语态.和前面的名词构成被动关系.
(3)解析:只要理解句子中是做过的还是未做的,就知道该用哪一个了.
希望能帮到您.
再问:  谢谢,不过你能说说三个句子中do的区别吗
再答: There were lots of thngs to do . 表示将来需做的事情。There were lots of thngs doing。表示有许多事情正在进行或正在被人做。 I have lots of things to do。表示将来需做的事情。 但愿能帮到您。 祝您进步。