he usually exercise three times a week she is always late fo

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/10/02 17:36:57

he usually exercise three times a week she is always late for school 为什么句2有be动词,而句一没有

动词分系动词和行为动词,不是每句话都要有be动词
再问：你们说仔细点，我刚初学英语，不太懂
再答： be动词一般用于描述状态、情况、客观真理等。而行为动词用于描述动作
再问：我明白了，是不是句一中已经有行为动词exercise，所以就不需要be动词了，而句二的late是副词，用来修饰动词，所以就要be动词，对吗
再答：对，你的悟性蛮高滴嘛！
再问：那什么时候用be动词，什么时候用行为动词？

he usually exercise three times a week she is always late fo She usually e______ three times a week. most+students+exercise+three+or+four+times+a+week. ____do you exercise? More than three times a week. Oh I exercise about three times a week怎样用中文翻译. we exercise three or four times a week对three or four times a 用所给词的正确形式填空 1、He __ (exercise) three or four times a week. He eats noodles three times a week.对three times a week提问介词填空he usually does exercise 3__6times a week He plays football three times a week.对划线部分提问（three times a w 对划线部分提问 he exercises three times a week he exercises （three times a week.）对括号提问