英语中什么时候用do和does

2024-12-28 00:36:23
推荐回答(5个)
回答1:

1,作为实义动词/行为动词,跟其他动词一样,如study, play等,do和does都是“做”的意思,都是一般现在时,主语是第三人称单数用does,其余人称用do,

例句如:We usually do our homework in the afternoon.

He does his homework in the evening.

2,作为助动词,也就是帮助主要动词构成否定和疑问等,没有意义,主语是第三人称单数用does,其余人称用do,后面的动词都用原形。

例句如:We don't like bananas.  Do you like apples?

Does he like English?  He doesn't like swimming.

扩展资料

do和does的使用:

一,用do的情况为 :第一人称: I (我)、 We(我们) 第二人称: You(你)、 You(你们),如What do you do?

第三人称复数: they(他们),多个人名并列做主语时(比如Jenny and Tony, father and mother, my teacher等),如Jenny and Tony do their tasks together.

二,用does的情况为 :第三人称单数:he(他),she(她), it(它),单个的人名(如Jenny, Tony, my father等) ,或单个动物或者物品(如rabbit,monkey等) ,如He does not go.

回答2:

be是一个连系动词,它有自己不同的形式
现在时:be 进行时:being 过去时:was/were 过去分词:been
它的后面必须跟形容词或名词作表语,与之构成系表结构,充当句子的谓语.
i am a student主语:i 谓语:am a student(系表结构)
being是它的现在进行时态,一般不单独用,而是用于现在进行时的被动语态.(being+动词过去分词)
the bike is being repaired.单车正在被修理中.
it is being finished by him这正在被他完成中.
been是它的过去分词,也不一般单独使用,而是用于现在完成时、过去完成时以及需要它的句子.
i have been here for a long time.我已经到这里有一段时间了.
至于你的问题,这与你想表达的意思有关.
你的工作是什么?
what do you do?what is your job?
那么这里选用do和is有什么根据呢?
第一句里面,第二个do是指你做什么,也就是你的工作,就是一个实义动词.按中文说,what you do已经足够了.可是英语里面就不行,必须跟一个助动词,也就是do.
这里就有了一个结论:当句子中有动词时,我们就用助动词do或是does.如果没有动词时,我们就选用is或是are,也就是b“Be”除了原形的“be”之外,还有另外七种形式:am,is,are,been,being,was,were.
在句子中,“be”可以是主动词(The Principal Verb)或助动词(The Auxiliary Verb).
当主动词时,“be”在性质上属于接系动词(The Linking Verb),后面要有名词、形容词、地方副词或短语作补足语(The Complement).例如:
1.The man is a science teacher.
2.Mary's new dresses are colourful.
3.I have been there before.
4.Mother is in the kitchen now.
这四个都是陈述句,可以变成疑问句,方法简单,把主语和“be”或助动词对换位置即可:
5.Is the man a science teacher?
6.Are Mary's new dresses colourful?
7.Have I been there before?
8.Is mother in the kitchen now?
当“be”要在祈使句中出现时,它必须借重助动词“do”或“don't”之助,如:
9.Don't be silly!
10.Do be obedient!
11.Don't be a fool!
“Be”有两种缩写法,如下:
12.He's not./He isn't.
13.You're not./You aren't...
但“am + not”的缩写法只有一个:
14.I'm not.
有人用“ain't”,但这并不是标准英语.
谈过了“be”作主动词的功能,现在看看“be”作助动词时,有些什么用法:
1.“Be + 现在分词”以组成进行式时态(Continuous Tenses),如:
15.Tony's maid is washing his new car.
16.The children are playing in the field.
17.Samuel was eating when I came in.
18.We have been living here since 1959.
2.“Be + 过去分词”以组成被动语态(The Passive Voice),如:
19.Her money in the drawer was stolen.
20.A number of good jobs are taken up byforeigners.
21.David studied in Taiwan but has been trained as a language lecturer in America.
22.Can all the wonderful birds be found in our Bird Park?
23.The disobedient boy was told to stand out- side the classroom.
24.Steps are being taken to reduce traffic con- gestion during peak hours.
25.Dishonest students will be immediately dealt with.
当陈述句的谓语是实义动词时,助动词do通常用于疑问句和否定句中.如:
I go to school every day.
我每天上学.
Do you go to school every day?
你每天都上学吗?
I don”t go to school every day.
我不是每天都上学.
另外,助动词do还可用于强调句中,用于强调谓语动词.如:
将助动词do及do 的相应形式放于动词前,而动词要用原形.又如:
I did tell him.
我的确告诉他了.
He does like playing football.
他的确喜欢踢球.
其余时候do作动词原形,表示做.

回答3:

1,作为实义动词/行为动词,跟其他动词一样,如study, play等,do和does都是“做”的意思,都是一般现在时,主语是第三人称单数用does,其余人称用do,
例句如:Wtshabajae usually do our homework in the afternoon.
He does his homework in the evening.
2,作为助动词,也就是帮助主要动词构成否定和疑问等,没有意义,主语是第三人称单数用does,其余人称用do,后面的动词都用原形。
例句如:We don't like bananas. Do you like apples?
Does he like English? He doesn't like swimming.

回答4:

一般现在时,主语是第三人称单数(比如he/she/it/Lily/my friend等),动词要使用单三形式(do变为does)

回答5:

跟主语有关
代词只有he she it用does 其他用do
不可数名词都用does
可数名词单数用does
可数名词复数用do

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