be动词和do⼀does的区别!

2025-01-04 04:33:52
推荐回答(4个)
回答1:

be动词是在句子无动词下充当动词的,而do does则是在句子中有动词时,当助动词用

回答2:

前者为系动词,可与形容词、名词、代词构成系表结构,be 直接加not 构成否定,变成疑问句时直接将其调至句首。
如:She is a teacher. --- She is not a teacher.---Is she a teacher? Who is she?
而后者作为助动词,不单独作为句子成分,而是与行为动词搭配完成否定或疑问。
如:She teaches(行为动词) English. She doesn't teach Chinese. Does she teach Chinese? What does she teach? 如该主语为复数或第二人称,则does应改为do。
They teach English. They don't teach Chinese. Do they ... What do they...

回答3:

be其实就是am is are,do(dose)也就是所有动词的原形,do后面通常接名词.eg:do sports,do homework.而be动词后面通常接形容词,表示某人(物)怎么样!For example:The girl is very smart.

回答4:

do/dose是助动词