1 it ，one，ones，that ，those 表替代 it ，one，ones，that ，those 可以用来代替上文中提到的名词，以避免重复。现将其用法归纳如下：1. it1) 代替上文提到的名词，指代同一事物 (同名同物 )，不能带修饰语 ： ---Do you want the magazine? ---Yes ，I want it . I don't want to drink the tea．It is too hot．2) it 用作人称代词时，可指已知的或暗含的事实或情况 ，或用作 形式主语/宾语，也可替代 性别不明的婴儿 。Once the supermarket closes, it will mean that 200 workers will be laid off. No, she was not at home last night. What about it? It would be a pity to miss it. It is not worth getting upset.It's probable that we'll be a little late.I find it difficult to talk to you about anything serious.She thought it a waste of time arguing with him.George made it dear that he disagreed. 2. one1）代替上文中出现过的 单数可数名词，表泛指（同类但不是同一）前面可以有冠词或形容词，也可以有 this 或 that 或 another ，但前不能有物主代词：I have 1ost my pen．I ’m going to buy one. This pen doesn’t work. I must buy another one. 2 I prefer this one to that one. 比较：I ’m looking for a flat. I’d like a small one with a garden. I ’m looking for a flat. I’d like one with a garden. （不能说： ... a one with a garden. ）2）one 作为不定人称代词 , 可泛指“任何一个人” ，有 one's 和 oneself形式。多用于正式文体，口语中也可用he/his 代替第二个 one/one's.One has to take care of oneself and one's family if he can. One shouldn't hesitate to correct his/one's mistakes.If one wants to see the ruins, he must find his own guide. (如果一个人想看那废墟 , 他必须找自己的向导。 )One of the girl students hasn't handed in _____ composition.A. one's B. his C. their D. her 3．ones是 one的复数形式，常用来代替复数可数名词，表泛指 ，前面不用物主代词修饰，也不用these或 those 来直接修饰...
