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know +动词.够短语

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know +动词.够短语
know +动词.够短语
1.know 后不直接加 to do 或 doing 作其宾语.
He knows to fly a light aircraft.(语义清楚,语法错误.疑为汉语影响所致.)
He knows flying a light aircraft.(语义清楚,语法错误.)
2.与不定式连用时的实际用法是:know + wh-词 to do (wh-词中包括how)
He knows how to fly a light aircarft.(正确)
We didn't know what to do.(正确)
They didn't know where to put up for the night.(正确)
3.可用成:know sb to do
I've never known him to lose his temper.(正确)
He's never known to lose his temper.