buy是第三人称单数,buy什么时候用复数形式

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buy是第三人称单数,buy什么时候用复数形式(1)


either…or….(对两事物的选择)要么…要么,不是…就是,或者…或者 ,不是……就是.
used to show a choice of two things

表示两者选择其一,连接句子中两个并列的成分或句子.例如:
例如:
Either you or he has lunch at school.

其一般疑问句应为:

Do either you or he have lunch at school?是你还是他在学校吃午饭?(各种形式变化遵循邻近原则)
若要对either...or...句型进行否定时,只需把either...or...换成neither...nor...即可.例如:
Either you or she is good at drawing.变为否定句应为:Neither you nor she is good at drawing.你和她都不擅长绘画.

He didn’t either write or phone.=He neither wrote nor phoned. 他既没写信又没打电话。
Either you or she is good at drawing. 变为否定句应为:Neither you nor she is good at drawing. 你和她都不擅长绘画。
我们还可以单独使用either,其意为"两者中的任何一个".例如:
There are many shops on either side of the street.街道两边有许多商店.这个句子也可以这样表达:There are many shops on both sides of the street.在街道两边有许多商店.
either用在否定句的句末,表示"也"的意思.例如:
If you don't go there.I won't,either.如果你不去那里,我也不去.
When the girl is happy,she either sings or dances.那个女孩高兴时,不是唱就是跳.(此句中either...or...连接两个动词,因为主语是单数第三人称,谓语动词要用其相应的形式.)
either...or...连接两个主语时,其谓语动词应与最近的一个主语在人称和数上保持一致,这就是我们通常说的"就近原则".
Either you or I am going there tomorrow.明天要么你去那里,要么我去那里.
注意:如果把上句变成一般疑问句,助动词形式与主语you保持一致,所以要用are提问,而不是am.例如:
Are either you or I going there tomorrow?明天是你还是我去那里?

either…or…除可连接两个词或短语外,有时也可连接两个句子。如:
Either you must improve your work or I shall dismiss you. 要么你改进工作,要么我就辞退你。

Well, I think she's either Russian or Polish.

嗯,我看她不是俄罗斯人就是波兰人。

I'm going to buy either a camera or a DVD player with the money.

我打算用这笔钱买一台照相机或者DVD机。

Either he could not come or he did not want to.

他要么是不能来要么就是不想来。

Either she goes or I go.

要么她走,要么我走。

《柯林斯高阶英汉双解学习词典》

He must be either mad or drunk.

他要么是疯了,要么是喝醉了。

《汉英大词典》

You are either a total genius or else you must be absolutely raving mad

你要么是个不折不扣的天才,要么就是完全疯了。

《柯林斯高阶英汉双解学习词典》

Most single parents are either divorced or separated

大多数单身父母要么离婚了要么分居了。

《柯林斯高阶英汉双解学习词典》

Either you can talk to him, or I will

要么你跟他谈,要么我去。

《柯林斯高阶英汉双解学习词典》

After the violent clashes of 1981 they either went underground or left the country.

经历了1981年的激烈冲突之后,他们或转入地下,或离开了该国。

《柯林斯高阶英汉双解学习词典》

You can apply either personally or in letter.

你可以亲自接洽也可以写信。

《汉英大词典》

Either he went through with this thing or he did not; it was all or nothing.

他要么把这件事做完,要么就不做,只有这两种选择。

《柯林斯高阶英汉双解学习词典》

It must be either this or that.

非此即彼。

《汉英大词典》

You are either very young or an incurable optimist.

你要么非常年轻,要么是个不可救药的乐天派。

《柯林斯高阶英汉双解学习词典》

Either come in or go out. 或者进来,或者出去。
Do you speak either English or French? 你说英语还是法语?
Crude oil contains gases and solids either dissolved or dispersed. 原油含有气体和固体。这些气体和固体不是溶于其内便是分散于其内。
These electronic musical instruments were made either in Tianjin or in Beijing. 这些电子乐器不是天津制造的,就是北京制造的。
In the absence of force, a body will either remain at rest or continue to move with constant speed in a straight line. 没有外力时,物体或者保持静止,或者继续作等速直线运动。
Current theories, either empirical or electronic, do not appear to account for this result. 现代的经验理论也好,电子理论也好,看来都不能解释这种结果。(本句可改为:Current theories, neither empirical nor electronic, appear to account for this result.)
It is wrong to regard our work either as totally good or as completely bad. 把我们的工作不是说成样样都好就是一无是处,这都是错误的。
I was advised either to telephone or to write to the hotel for reservations. 有人建议我或者打电话或者写信给旅馆预订房间。
Either he is right or I am. 或是他对,或是我对。(也可写成:Either he or I am right.)

buy是第三人称单数,buy什么时候用复数形式(2)

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