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be动词的形式和用法题(be动词的形式有哪些怎么用)

Be动词有:be; is, am,are, (一般现在时,时态的be动词)

was, were, (过去时态的be动词)

being,(现在分词)

been; (过去分词)

The man is back.They are back.He was back.They were back.They have been back.be动词的用法后面接名词,形容词,地点副词或短语作补足语。1.The man is a teather.(名词补足语,补充说明)2.Mary's new dresses are colorful.(形容词补足语,补充说明)3.My mother was in the kitchen.(地点副词补足语)Be动词的练习1.他们是老师(they,teachers)(现在时)2.他以前是一名老师(he,a teacher,before)(过去时)3.他已经当了3年的老师。(for 3years)(完成时)

答案:1.They are teachers.

2.He was before a teacher.

3.He has been a teacher for 3years.

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