题目

be和do怎么区分用法?
什么时候该用be,什么时候该用do我就没闹明白过,请高手给予直接明了的辨析和使用办法.
例句:1.Theories centering on the individual suggest that children engaged in criminal behavior because they (were not)sufficiently penalized for previous misdeeds.
2.Since you (are not)interested,I won't tell you about it.为什么用are,不用don't啊?
这俩词都各自在什么时候用啊.

提问时间：2021-12-29

答案

1.be
1）be + adj./ n.adj./ n.做表语
2）be + V.PP(动词过去分词）一般现在时的被动语态
2.do
1）在一般现在时的否定句、一般疑问句里用作助词.否定句里do后面直接加动词原型.
其他的建议你多背背词组,比如be interested in ...