作业帮Does 的用法
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Does 的用法
Does 的用法
Does 的用法
对比学习,掌握does do did 的用法并不难
以下面三个句子为例：
a) He studies English.他学习英语.
b) They look young.他们看来挺年轻.
c) We went to school yesterday.我们昨天上学了.
1、上述三句在强调谓语的时候,does ,do ,did请强调作用：
a) He does study English.他的确学习英语.
b) They do look young.他们的确看来挺年轻.
c) We did go to school yesterday.我们昨天的确上学了.
2、在构成否定句和疑问句的时候does ,do ,did作助动词
a) He doesn't study English.Does he study English?
b) They don't look young.Do they look young?
c) We didn't go to school yesterday.Did you go to school yesterday?
3、does do did也可以作为一般动词,意为“做、进行”.
a) He does his homework in the evening.
b) I do shopping on Sundays.
c) He did his best yesterday.
用于单数人称。
does 是do 的单数形式~~
它可以是动词也可以用来做助词~~
做动词时用在主语是单数的情况下`~~
做助词时一般是用在疑问句或者否定句里~~
助动词，没有实际意义，与第三人称单数连用。
例如：does she have a car？
通常加在第三人称后使用。
有两种用法：
1、动词.有“做”的意思,用于第三人称单数.例如：He does his homework.他在做家庭作业.
改否定句在does前加does not,但does变为原形do. He does not do his homework.他没有做家庭作业.
2、助动词,没有实际意义,用于第三人单数的疑问句或否定句.例如：疑问句：Does he like swim...
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有两种用法：
1、动词.有“做”的意思,用于第三人称单数.例如：He does his homework.他在做家庭作业.
改否定句在does前加does not,但does变为原形do. He does not do his homework.他没有做家庭作业.
2、助动词,没有实际意义,用于第三人单数的疑问句或否定句.例如：疑问句：Does he like swim?他喜欢游泳吗?回答：Yes,he does/No,he doesn't 否定句：He does not like swim?他不喜欢游泳.
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