(3)one的前面可用this,that,the,which等词修饰。
Eg:There are three pens,which one is yours,this one or that one or the one in the pencil-box?
(4)a+形容词+one这一形式,经常见到或使用。
I have an old bike,but he has a new one.
我有辆旧自行车,他有辆新的。
own后面不用one
Your shoes don't fit me,I'd better wear my own.
我穿你的鞋不合适,我最好还是穿我自己的。
比较it和one的比较
it用来指特定的东西(the+名词);而one则用于替代不特定的东西(a,an+名词)
You have a pen,can I use it(=the pen)?
你有一支钢笔,我可以用它(这支钢笔)吗?(特指)
Do you have a pen?Yes,I have one(=a pen).
你有钢笔吗?是的,我有一支。(泛指)
2 some,any的用法
I have some money in my pocket,but it is not enough.
Do you have any?
我口袋里有一些钱,但不够,你有钱吗?
(1)some,any可与单、复数可数名词和不可数名词连用。some一般用于肯定句中,any一般用于否定旬、疑问句和条件句中。
I have some science books. 我有一些科技书。
There is some ink in the bottle. 瓶子里有一些墨水。
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