查人人中国名人网红石榴免洗面膜:初一英语问题
来源：百度文库 编辑：查人人中国名人网 时间：2024/04/29 18:16:04
was是be动词，根据一个句子只能有一个动词was 后面不接动词原型，只能市was doing表示过去正在进行或was 加动词过去分词表示状态如he was drunk他喝醉了。
did一方面是动词do 的过去时，这时后面是不能接动词的。另一方面是助动词，当用作助动词是在陈述句中表强调，在疑问句中放在动词前面
比如：I was a very goog student in junior high school.(was 接名词）
I was good at English when I was in your age.(接形容词短语）
I was beautiful when I was yong.(接形容词）
she was doing her homework just now
Was she a good student at school?
was she beautiful?
was she good at english?
was she doing her homewor just now?
Did (用作助动词）you do（加上动词原型） your homework by yourself?
I did all my homework by myself.(用作do的过去时）
Did (用作助动词）she leave （加上动词原型）school?
she did left shool just now.（用作强调，她刚才确实离开学校了）
Was he a student?
Did he fall the exam?