不定代词one
一、 数词one与代词one的区别
数词one指数字一,代词one代替前面提到过的人或事物
eg:1. I have one book,but he has three.It’s unfair.
2.This is not the one I want..
How many sisters do you have?—I have .
二、it ,one和that在用法上的不同
(1) it用来指特定的东西,复数用they,it只能用来指物,它所指的特定东西是前面提到过的某物,即指代的是同类同物!
eg: A:May I use your bike?
B:Sure, you can use it.=(the bike).
eg: A:May I use your books?
B:Sure, you can use them.=(the books).
Which of the table cloths do you like better,the green or the yellow ?
(2) one代替前面提到过的名词(人或物),并不特指(如特指应加限定词the,this)
eg:Can you lend me a pen? I’m sorry, I haven’t got one.(前面提到过的事物,不特指)
Which one do you prefer? This one on the left.(特指)
(3) that代表一个对等的部分,复数用those.
eg: The weather in Beijing is colder than that(=the weather)in Guangzhou.
(4) One的所有格形式是one’s,但只有当作主语时,句子中才能用one’s
eg: One must do one’s duty.
Should look after oneself.
Should be strick with oneself.
Everyone must do best to help others.
二、 One/Ones用法
(1) One/Ones可指人也可以指物.
Which one? –The one on the right.
Look at the girl. –Which one? The one in red skirt.
Of the girls got a first prize in the 100-metre run..
Let’s read the text by .
(2) One/Ones用来代替前面出现过的可数名词,可避免重复
Eg:This roon is dirty,please show me another one.
Do you have a computer?—Yes ,I have .
She has got a washer.I want to buy ,too.
There are forty new desks and ten old in the classroom.
Is this your shirt?—No, mine is a blue .
(3) One/Ones指的都是同类事物,one代替单数,ones指复数
Eg:A:Look,there are many pictures.
B:Which one(the picture) do you like best?
B:Which ones(the ppictures) do you like best?
Look at the boy.—which ? The wearing the blue sweater.
Which boxes are bigger?—These or those ?
I’v been looking for an umbrella,but I can’t find .
I like small cars better than large .
(4) One的前面可用the,this,that,which来修饰,同时还能用形容词来修饰!
Eg: There are three pens,which one is yours,this one or that one or the one in the pencil box.
I have an old bike, but he has a .
The pen is blue ,will you please give me a ?
The pens are blue ,will you please pass me some ?
本文来源:https://www.2haoxitong.net/k/doc/f6752f090066f5335a8121d1.html
文档为doc格式