do和be动词的用法区别比如：①__?__this programme.(I'm not understand/I don't understand)②Jim and his father__?__.They are asleep.（aren't watching TV/don't watching tv)③A:Why______?B:Because I'm happy.(smile) 要怎么做?为什么?不要光说答案，要解释。谢谢！
问题描述：
do和be动词的用法区别
比如：①__?__this programme.(I'm not understand/I don't understand)②Jim and his father__?__.They are asleep.（aren't watching TV/don't watching tv)③A:Why______?B:Because I'm happy.(smile) 要怎么做?为什么?
不要光说答案，要解释。谢谢！
答
1、I don't understand 解释：understand是动词,动词的否定一般是在前面加don't ,而且如果动词用在be动词后面要变ing形式. 2、aren't watching TV 解释：这句话是说Jim和他的爸爸不在看电视,表示的是一种状态,用...