He is too busy playing games to notice us coming in.问:为什么come要加上ing?

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He is too busy playing games to notice us coming in.问:为什么come要加上ing?
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He is too busy playing games to notice us coming in.问:为什么come要加上ing?
He is too busy playing games to notice us coming in.问:为什么come要加上ing?

He is too busy playing games to notice us coming in.问:为什么come要加上ing?
notice sb.doing sth 注意到某人正在做某事 .而notice sb to do 注意到某人做了某事
这一句话的意思是“他玩游戏太忙而不能注意到我们进来了.”因为前面有:“He is too busy playing games."(句子前后有too.to 意思是:太.而不能)说明这是进行时态,所以这句话描述的是正在做的事情,故要用notice sb.doing sth这一局型来符合句子的时态.明白了吗?

notice + doing

跟notice的用法有关,notice表示注意、观察,和see看得意思差不多,see sb. doing sth. 表示看见某人正在做某事,那notice sb. doing sth. 我们也可以理解为注意某人做某事。