one,it,that的用法
代词one,it,that用法小结
在英语句式中,为了避免重复 使得语言简练 在英语句式中 为了避免重复,使得语言简练 我们常常 为了避免重复 使得语言简练,我们常常 使用一些代词,如 使用一些代词 如one, it, that等来替代前面所提到的人 等来替代前面所提到的人 或事物.它是近几年高考的测试重点之一 它是近几年高考的测试重点之一.下面将这些 或事物 它是近几年one作代词的用法 作代词的用法 1.one替代由可数名词所表示的一类人或事物中的 替代由可数名词所表示的一类人或事物中的 替代 任何一个,即泛指中的强调 这时,替代词 前面不可加 即泛指中的强调.这时 替代词one前面不可加 任何一个 即泛指中的强调 这时 替代词 任何限定词.例如 例如: 任何限定词.例如: 1)I hope there are enough glasses for each guest to have one.(NMET'95) 2)A color TV set made in Japan costs more than one made in China. 3)-Who can lend me a Chinese-English dictionary? -I have one.
二、it作替代词的用法 作替代词的用法 1.it用来替代前面提到的同一事物时 被替代的 用来替代前面提到的同一事物时,被替代的 用来替代前面提到的同一事物时 名词可以是可数名词,也可以是不可数名词 例如: 也可以是不可数名词.例如 名词可以是可数名词 也可以是不可数名词 例如 1)We are studying in a school with trees all around it.(it替代可数名词 替代可数名词school) 替代可数名词 2)-Have you still kept your old furniture? -No,I have sold it.(it替代不可数名词 替代不可数名词furniture) 替代不可数名词
代词it、one与that用法区别
4. one一般有前置修饰语, 有时也可 有后置修饰语或不用修饰语。而 that不能有前置修饰语, 但可有后 置修饰语。
Cook was a strict but good captain, one who took good care of his sailors.
The water in the well is cleaner than that in the river.
6.—Silly me! I forget what my luggage looks like.
—When was __A___ ?
—_____ was in 1998 when he was in middle school.
A. that; It
B. this; This
C. this; It
D. that; This
8.It was how the young man had learned
We had a picnic last term and it was a lot of fun.
2.it可以替名词性从句、动名词和不定式 短语，作形式主语或形式宾语而one和that
无此用法.
• If you take a bus at the airport, it will take you half an hour to get there.
• A. it B. one C. that D. which
it,one,ones,that,those的区别用法
it,one,ones,that,those的区别用法it,one,ones,that,those的区别用法为使表达简洁明了，我们常用it，one，ones，that，those 等替代词来替代前面已经出现的名词。
从近几年的高考英语情况来看，考查替代词的用法和区别一直是一个热点。
本文拟就以上几个最重要的替代词的用法作一小结，同时为同学们归纳一些使用技巧，希望对大家有所帮助。
一、替代表泛指的单数名词替代表泛指的单数名词，通常用one。
如：Two heads are better than one. 两人智慧胜一人。
I lost my old camera; this is a new one. 我的旧相机丢了，这是一架新的。
Did you get a ticket?—Yes，I managed to get one. 你搞到票了吗?——是的，我设法搞到了一张。
注：若one 前没有形容词的修饰，则其前不能有不定冠词。
比较：I’m looking for a flat. I’d like a small one with a garden. 我正在找一套公寓，想找一套小的带花园的。
I’m looking for a flat. I’d like one with a garden. 我正在找一套公寓，想找一套带花园的。
（不能说：... a one with a garden.）没有形容词修饰的one 前不能用不定冠词，但可用another。
如：This pen doesn’t work. I must buy another one. 这支钢笔坏了，我要另买一支了。
另外，注意它与表特指的it 的区别。
如：Can you lend me a pen?—Sorry. I haven’t got one. 你能借给我一支钢笔吗?——对不起，我没有钢笔。
Can I borrow your pen?—Sorry，I’m using it. 我能借用你的钢笔吗?——对不起，我自己正在用。
it,one,that的用法区别
I like this house with a beautiful garden in front, but I don’t have enough money to buy ______.A. oneB. itC. thisD. that用法区别一、it代替前面的事物本身。
它可以代替可数名词，也可以代替不可数名词。
代替可数名词时，复数形式为they/ them. 没有增加语义，所以不能带有任何定语。
二、one可以代替与前面同类不同一的事物；可以代替某类事物中的任何一个；可以做同位语，重复指代前面的事物，其后有定语从句用以进一步说明前面的名词。
one表泛指，相当于a/an+名词。
one只能代替可数名词，其复数形式是ones。
one可以根据语义在它的前面或后面加上一些定语。
one前面不能直接加不定冠词（a / an）或物主代词，one前已经有形容词时，则可以加不定冠词或物主代词；one前加the与否，取决于是否特指，如果特指就加the。
one既可以代指物，也可以代指人。
三、that代替与前面同类不同一的事物。
that表特指，相当于the+名词。
它可以代替可数名词，也可以代替不可数名词。
代替可数名词时，复数形式为those。
that可以根据语义在它的后面加上一些定语，多数是of短语；它的前面不能存在任何定语。
that只能代指物。
例句分析I have lost my umbrella; I'm looking for it. （该句中it就是指前面的my umbrella）I have lost my umbrella; I think I must buy one. （one在该句中表泛指，因为my umbrella 已经丢了）The umbrella you bought is cheaper than that I bought. （替代词that在该句中特指“the umbrella I bought”，以区别“the umbrella you bought”）A chair made of steel is stronger than one made of wood. （该句中one可以换成a chair）The water in the cup is hotter than that in the pot. （该句中that可以换成 the water）I like this pen more than that one. （one代替可数名词单数pen）There were a few young people and some older ones in the house. （ones代替可数名词复数people）Mary's handwriting is far better than that of Peter. （that代替不可数名词 handwriting）These pictures are more beautiful than those. （those代替可数名词复数 pictures）The one ／That on the table is mine. （该句中The one代替事物，并且也可以用That）He is the teacher, the one who is loved by the students. （该句中the one代替人，不能用that）He advised the farmers to choose the best seed-heads, the ones ／those that had the best color. （该句中the ones代替事物，并且也可以用those）Cook was a strict but good captain, one who took good care of his sailors.The water in the well is cleaner than that in the river.。
one it that的区别是什么
one表示泛指，that和it表示特指。
that与所指名词为同类，但不是同一个，而it与所指名词为同一个。
one it that的区别一、one/ it/that三者均可用作代词,指代前面提到的名词.一般说来,it指代同名同物; one与that则指代同名异物。
例句：I have lost my umbrella; I'm looking for it.(该句中it就是指前面的my umbrella)I have lost my umbrella; I think I must buy one.(one在该句中表泛指,因为myumbrella已经丢了)The umbrella you bought is cheaper than that I bought.(替代词that在该句中特指“theumbrella I bought”,以区别“the umbrella you bought”)二、one与that虽可用来指代同名异物,但one为泛指,相当于a/an+名词; that为特指,相当于the+名词.所以one所指代的名词的修饰语一般为 a/an /some /any; that所指代的名词的修饰语往往是the /this /that。
例句：A chair made of steel is stronger than one made of wood.(该句中one可以换成achair)The water in the cup is hotter than that in the pot.(该句中that可以换成 thewater)三、one只能代替可数名词单数,代替可数名词复数时用ones; that既可以代替不可数名词也可以代替可数名词单数,代替可数名词复数时用those。
例句：I like this pen more than that one.(one代替可数名词单数pen)There were a few young people and some older ones in thehouse.(ones代替可数名词复数people)Mary's handwriting is far better than that of Peter.(that代替不可数名词handwriting)These pictures are more beautiful than those.(those代替可数名词复数 pictures)四、one既可代替事物,也可代替人,that只能代替事物而不能代替人.有时可以用the one或the ones代替that或those。
one，that和it的用法和区别
one，that 和it的用法和区别以下是小编为大家整理的one，that 和it的用法总结，希望能帮助大家提高英语水平。
一、that的用法1、that用来指前文中确定的非同一事物，常用来替代与定冠词或形容词性物主代词连用的单数可数名词或不可数名词，相当于“the+名词”，其复数形式为those。
2、that表替代时为始终是特指(作指示代词和关系代词用时另论)，可指上文谈到的人、物或情况(均为单数)，可代替可数名词和不可数名词。
3、若that所代替的内容为前置用法，即要代替的内容将出现在下文中，一般用this,these或the following表示。
1.—He was nearly drowned once—When was_______?(NMET2002 Beijing spring)—_____was in 1998 when he was in middle school.A.that,ItB.this,ThisC.this,ItD.that,This2.Equipped with modern facilities, today’s libraries differ from______ (2003 Shanghai spring,26)A.those of the pastB.the pastC.which of the pastD.those past3.Few pleasure can equal __of a cool drink on a hot day. (NMET99,17; NMET99 Guangdong,29)A.some B,any C.that D.those4.The population of Sichuan Province is larger than ____of any province in China.A.oneB.itC.thatD.the one5.What I want to suggest is_____: Everyone should have another try. We needn’t only wait for help.A.thatB.thisC.itD.one6.You see, the accident happened like_____: The red car hit the bus and made all the traffic stop.A.thatB.thisC.itD.one7.Listen! ________ is about the lessons we will have to finish today.A.ItB.The oneC.The followingD.One8.The climate here is quite different from____ of Shengyang.A.thatB.itC.oneD.the one9.The study of idioms is as important as____ of grammar.A.oneB.that B.it D.this10.My seat is next to_____ of my teacher.A.thatB.itC.thisD.one二、it的用法1、it指代上文所提事物的本身(it表时间、强调等的用法此处不阐明)，如果所代替的事物为复数，则应该用they或them表示。
one,that,it,theone用法解析
one,that,it,the one,that,it,the one one 用法解析1. it ／one ／that 三者均可用作代词, 指代前面提到的名词。
一般说来, , itit 指代同名同物; ; one one 与that 则指代同名异物。
则指代同名异物。
I I have have have lost lost lost my my my umbrella; umbrella; umbrella; I'm I'm I'm looking looking looking for for for it. it. （该句中it 就是指前面的my my umbr umbr ella ）I I have have have lost lost lost my my my umbrella; umbrella; umbrella; I I I think think think I I I must must must buy buy buy one. one. （one 在该句中表泛指, 因为my my umbrella umbrella 已经丢了）已经丢了）The The umbrella umbrella umbrella you you you bought bought bought is is is cheaper cheaper cheaper than than than that that that I I I bought. bought. （替代词that 在该句中特指“the “the umbrella umbrella umbrella I I I bought”, bought”, 以区别“the “the umbrella umbrella umbrella you you you bought”bought”） 2. one 与that 虽可用来指代同名异物, 但one 为泛指, 相当于a ／an ＋名词; ; that that 为特指, 相当于the ＋名词。
It,One,That三词之用法区别
It, One, That三词之用法区别1.它们三词均作代词用，指代前文提到的名词。
但是it所指是同名同物，one和that所指是同名异物，如：我喜欢那辆汽车，可我没足够的钱买它。
I likethe car, but I have no enough money to buyit.我喜欢汽车，可我买不起一辆。
I like cars, but I can’t afford to buy one我想买的那辆汽车要比他的那辆漂亮得多。
The car which I want to buy is much more beautiful than that he has.2. It可以替名词性从句、动名词和不定式短语，还可充当形式主语或宾语，而one和that无此用法。
如：我发现按时完成这项工作是不可能的。
I find it impossible to complete the project on time.哪里能找到足够的食物和水还是个问题。
It is a question where we can find enough food and water.It可表示天气、时间、距离，以及现场情况知其为何事。
3. It和that都可以指代上文的一部分或全句,而one不能。
如:杰克和我在美国一起学习了三年,我是不会忘记这事的.Jack and I studied together in the United States; I’ll never forget it.如何做得更快更好?那确实是个问题.How to do it better and faster? That is really a question4. one和that虽然都可以用来指代前文同名异物的名词,但one指代同类中的一个,属于泛指=a/an+N;而that属于特指=the+N.如:Do you need my pen? No, thanks.I have got one (=a pen).The bridge built of steel is stronger than that built of stone.=the bridge5. One只能代替可数名词,复数用ones,而that可数或不可数均可代,复数用those.如:篮子里很多苹果,请把烂的拣出来.There are a lot of apples in the basket. Please pick out the rotten ones.我们的规章制度和别的机关的大为不同.Our rules are quite different from those of other organizations.北京的天气比上海的冷得多.The weather in Beijing is much colder than that in Shanghai.6. One一般有前置或后置的修饰语,或没有;而that只可有后置的修饰语.如: This bag is too small. Please give me abiggerone.This school is the one that we visited last week.The air in the countryside is fresher than thatin cities.Make the best choice:1.—Did you find your dictionary yesterday?—No, I didn’t find______, but I’ve bought______.A. it/oneB. one/oneC. it/itD. one/it2. The recorder is better than ______I bought last year.A. the oneB. oneC. itD. whic3. The population of Zibo is smaller than _____ of Beijing.A. oneB. thatC. populationD. then4.—Would you like a cup of coffee?—No, I’ve just had______.A. itB. thatC. oneD. the one5. I have bought a new bike. My _____ doesn’t work.A. old thatB. that oldC. the old oneD. old one6.—Do you have my book, Mr Yang?—Yes, I have _______ right here.A.oneB. thisC. itD. that7. Is_______necessary that we clean the floor again?A. oneB. thatC. thisD. it8. These pictures are more beautiful than_____on the wall.A. thatB. thoseC. oneD. ones9. I was disappointed with the film. I had expressed_____to be much better.A. thatB. thisC. oneD. it10. _____is a fact that English is being accepted as an international language.A. ThereB. ThisC. ThatD. It11. I hope there are enough glasses for each guest to have_______.A. itB. thoseC. themD. one12. Few pleasures can be equal to______of a cool drink on a hot day.A. someB. anyC. thatD. those13.—Why don’t we takea little break?—Didn’t we just have ______?A. itB. thatC. oneD. this14. Tom’s mother kept telling him that he should work harder, but _____ didn’t help.A. heB. whichC. sheD. it15. There is a photo on the wall. _____ a photo of lei Feng.A. ItB. It’sC. ItsD. He’s16. Do you consider ______ wise to tell him the truth?A. thatB. thisC. whichD. it17. I l ost my pen. I’m lokingfor ______.A. oneB. thatC. itD. this18. I glanced my watch. ______was earlier than I thought .A. ThereB. ThisC. ThatD. It19. _____is important for us to learn foreign languages.A. ThisB. HeC. ItD. That20. ______ needs further discussion whether we’ll build a library or not.A. WeB. HeC. ItD. There21. The Parkers bought a new house but _______ will need a lot of work before they move in.A. theyB. itC. oneD. which22. People in the west make ______ a rule to buy Christmas presents for theirrelatives and friends.A. itB.thatC. thisD. as23. It was she ______ gave a sharp whistle, ______ makes it possible for us to catch the thief.A. who/thatB. that/thatC. that/whichD. who/it24. We’ll go to the cinema tonight. We must book the tickets in advance.Who’d like to do ______?A. thatB. itC. thisD. one25. ____ doesn’t make any difference my being there.A. ThatB. WhichC. HeD. It26. I hate _____ when people talk with their mouths full.A. itB. thatC. theseD. them27. _____ was December 26,1893______ Mao Zedongwas born in a common village.A. The day/whenB. It/thatC. It/whenD. That/on which28. Wasn’t ______a shame that she could never have any real happiness.A. thereB. thisC. thatD. it29. It was ______ discovered the secret first.A. I whoB. me thatC. myself thatD. myself who30. The baby was crying. His mother found ______ hardto make him laugh.A. herB. thisC. thatD. itKeys:1-5AABCD6-10CDBDD11-15DCCDB16-20DCDCC21-25BACBD26-30ACDAD。
oneitthat的用法区别
oneitthat的用法区别一级标题：oneitthat的用法及区别二级标题1：什么是oneitthat？oneitthat是一种非官方术语，常用于描述一个人或物体在某种情况下表现出的特定特质或属性。
这个词通常用来形容某人、某事或某物与众不同、独特或突出的一面。
二级标题2：oneitthat与otheritthis之间的区别在英语中，除了oneitthat外，还存在着另一个类似的词汇——otheritthis。
尽管两者具有相似的意思，但它们在使用上有细微差异。
1. 编号顺序不同：oneitthat暗示着首先提到的事物或特征，而otheritthis则指代第二个被提到的事物或特征。
例如，在描述一部电影时，可以说："Oneitthat movie was thought-provoking."（这部电影让人深思。
）然后接着说："Otheritthis movie, on the other hand, was purely entertaining."（而那部电影，则纯粹是为了娱乐。
）2. 类比概念不同：oneitthat更注重强调对象自身在某方面上与众不同或突出的一面，而otheritthis则更强调两个事物之间从属关系、对比关系或者替代关系。
例如，在描述两辆汽车时，可以说："Oneitthat car is faster than the other."（那辆车比另一辆快。
）而当强调两辆车之间的替代关系时，可以说："Otheritthis car is more fuel-efficient, though."（不过那辆车更省油。
）二级标题3：oneitthat的使用场景1. 描述个人特质：oneitthat可用于形容一个人在某些方面上的特点或能力。
例如："She's like a oneitthat pianist, able to play complex pieces with ease."（她像是个非常擅长钢琴演奏的人，能够轻松地演奏复杂的曲子。
It,that,one用法辨析
It, That, One 辨析Jan 22, 2013
It 指刚刚提到的原模原样的事物。
That 指不同环境下同样的事物。
One泛指同类事物中的一个。
一．It 例句:
1. I know you have a computer. Do you use it every day?
我知道你有一台电脑，你每天都用它吗？
（it 指刚提到的你的电脑）
2.There is only one copy left. Would you go and buy it?
只剩了一本，你去把它买回来吗？
（it 指刚刚提到的那唯一一本书。
）
二．That例句:
1. The computer in Class Five is better than that of Class Six.
五班的电脑比六班的电脑好一些。
（that 指六班环境下的电脑）
3.The population of Japan is smaller than that of China.
日本的人口比中国少。
（that 指中国环境下的人口）
三.One例句:
We have various summer camps for your holidays. You can choose one based on your own interests.
我们有各种假期夏令营，你可根据自己的兴趣选择一个。
（one 泛指夏令营中的一个，非特指。
）。
one,which,that,it用法
One 指代的是上文已经出现过的同一或同一类东西，通常不能用来指代句子，one用作定语从句中作先行词。
比如： I d on't l ike t he r ed c oat,but t he b lue o ne. 这里的one 就是泛指上文中的coat.或者： I w ill t hrow t he r ed s hoes,the o ne t hat w as b roken y esterday. 如果用 the one,就是特指前面提到的那一件东西。
that ，在定语从句中通常用作关系代词，即前面必须要主现一个先行词，这个先行词可以是人，也要以是物，也可以是不定代词和one，that不能用于非限制性定语从句，即，that 前面不能有逗号，that 在定语从句中不能指代一句话。
比如：We d on't n eed a nyone t hat h as n ever p assesd t he e xam.没通过考试的我们一概不需要！这里的 that 就是指代前面的 anyone.which,在定语从句中只能指代物，不能指代人（特殊情况下除外），前面不能跟 one,以及不定代词，which 可以用于非限制性定语从句，可以指代前面的一句话。
it 通常在句子中用作形式主语或形式宾语，往往后面会有真正的主语/宾语出现，一般不用于定语从句中。
在一般句子中，it 也是特指前面出现的东西，这点和the o ne作先先词的定语从句有点像，比如 I w ill t hrow t he b ook,the o ne t hat w as broken yesterday 就可以改为；I will throw the book,because it was broken yesterday。
it,one ,that用法巧记
it、one和that常常放在一起辨析，思路如下：1.it：同一、单数（可数、不可数名词）、泛指 .复数形式为they2.that(the +名词)：同类、单数（可数、不可数名词）、特指，用于比较 . 复数用those3.one：同类、单数（可数名词）、泛指 . 复数用onesThe printer is made in Japan. It was bought it last year.The climate in the south is different from that in the north.The car made in China is cheaper than that made in US.Cars made in China are cheap. I want to buy one.详解：it、one和that常常放在一起辨析，思路如下：一、that的用法例：The climate in the south is different from that in the north.句意为“南方的气候和北方的气候不同”，that代指上文提到的the climate，但不是the climate in the south，而是the climate in the north，即“代指上文提到的同类事物，但非上文的事物”。
如果代指上文提到的同类的事物的复数概念，则应使用those，如：The car made in China is cheaper than that made in US. 中国生产的这辆车比美国生产的那辆车便宜。
The cars made in China are cheaper than those made in US. 中国生产的汽车比美国生产的汽车便宜。
解析：句1中的that意为the car，that made in US即the car made in US，可见，that指“美国生产的汽车”，而非“中国生产的汽车”，所以说that 代指上文提到的同类事物，但非上文的事物。
it,one,ones,that,those的区别用法
it,one,ones,that,those的区别⽤法为使表达简洁明了，我们常⽤ it， one， ones， that， those 等替代词来替代前⾯已经出现的名词。
从近⼏年的⾼考英语情况来看，考查替代词的⽤法和区别⼀直是⼀个热点。
本⽂拟就以上⼏个最重要的替代词的⽤法作⼀⼩结，同时为同学们归纳⼀些使⽤技巧，希望对⼤家有所帮助。
⼀、替代表泛指的单数名词 替代表泛指的单数名词，通常⽤ one。
如： Two heads are better than one. 两⼈智慧胜⼀⼈。
I lost my old camera; this is a new one. 我的旧相机丢了，这是⼀架新的。
Did you get a ticket?—Yes， I managed to get one. 你搞到票了吗?——是的，我设法搞到了⼀张。
注：若 one 前没有形容词的修饰，则其前不能有不定冠词。
⽐较： I’m looking for a flat. I’d like a small one with a garden. 我正在找⼀套公寓，想找⼀套⼩的带花园的。
I’m looking for a flat. I’d like one with a garden. 我正在找⼀套公寓，想找⼀套带花园的。
（不能说：... a one with a garden.） 没有形容词修饰的 one 前不能⽤不定冠词，但可⽤ another。
如： This pen doesn’t work. I must buy another one. 这⽀钢笔坏了，我要另买⼀⽀了。
另外，注意它与表特指的 it 的区别。
如： Can you lend me a pen?—Sorry. I haven’t got one. 你能借给我⼀⽀钢笔吗?——对不起，我没有钢笔。
Can I borrow your pen?—Sorry， I’m using it. 我能借⽤你的钢笔吗?——对不起，我⾃⼰正在⽤。
it,that,one代词用法
it,one,that作代词时候的用法2008-12-08 18:48分类：高考英语复习字号：大中小可数单数用one替，ones替代复数词。
不定冠词后加one，one前一般有定语。
替代若系本身物，it 替单 they 代复。
比较句中替代词，不可数名词that替。
最高级及序数词后，替代词常常被略去。
复数名词替代词，ones 与 those 均用之，特指 ones 加定冠，those 之前无冠词。
One(s) 的定语多在前，those 的定语必后置。
替代是一种避免重复、连接上下文的语法手段。
这种用法的特点是用替代词来替换上下文中的特定词语或语句。
一、替代词one的用法1.用作替代词时，表示泛指，既可指人，也可指物，常用来代替上文出现过的单数名词,以免重复。
所指的人或物属于同类事物中不同的一个，即替代的是一个带不定冠词的可数名词的单数形式。
如：I have a dictionary. Do you have one?(one = a dictionary)I have lost my old watch， this is a new one.(one my old watch)2.当one被定语修饰，而仍是泛指时，前面应加不定冠词a / an。
如：I have two story books, a thick one and a thin one.Your question is a very difficult one.3.当one被定语修饰，表示特指时，前面应加定冠词the。
如：—Which sweater would you like better, the red one or the yellow one?—The red one.4.当one带有定冠词the时表特指。
如：The girl I saw was older than the one you were dancing with.( the one = the girl)注意：这里不能用that，因为that不可替代表示人的名词，而one却可以。
代词it, one, ones, that, those的用法和区别
代词it, one, ones, that, those的用法和区别C-代词it, one, ones, that, those的用法和区别知识梳理一.it，one和that的用法概述1.it代替前面的事物本身。
它可以代替可数名词，也可以代替不可数名词。
代替可数名词时，复数形式为they/ them. 没有增加语义，所以不能带有任何定语。
2. one可以代替与前面同类不同一的事物；可以代替某类事物中的任何一个；可以做同位语，重复指代前面的事物，其后有定语从句用以进一步说明前面的名词。
one表泛指，相当于a/an+名词。
one只能代替可数名词，其复数形式是ones。
one可以根据语义在它的前面或后面加上一些定语。
one前面不能直接加不定冠词（a / an）或物主代词，one前已经有形容词时，则可以加不定冠词或物主代词；one前加the与否，取决于是否特指，如果特指就加the。
one既可以代指物，也可以代指人。
3. that代替与前面同类不同一的事物。
that表特指，相当于the+名词。
它可以代替可数名词，也可以代替不可数名词。
代替可数名词时，复数形式为those。
that可以根据语义在它的后面加上一些定语，多数是of短语；它的前面不能存在任何定语。
that只能代指物。
二.it, one, ones, that, those的区别：⑴.替代泛指的单数名词，通常用one。
替代泛指的复数名词，通常用ones。
如：I lost my old camera; this is a new one. 我的旧相机丢了，这是一个新的。
Did you get a ticket? Yes，I managed to get one.你弄到票了吗?是的，我设法弄到了一张。
Green apples often taste better than red ones. 青苹果往往比红苹果好吃。
⑵.替代特指的单数名词，可用it，that，the one。
替代词onethatitwhichso的用法比较
替代词one,that,it,which,so的用法比较one 、 the one 、 that 、 it 的区别2007-06-21 08:04（ 1 ） one 用来代替前面提到的名词，既可以指人由可以指物。
用于泛指，相当于 a/an+ 名词，复数形式为 ones 。
例如：I am looking for a house and I like one with a garden.我正在找房子，我喜欢一幢带有花园的房子。
I can’t find my hat. I thin k I must buy one.我的帽子找不到了。
我想我必须再买一顶了。
There is a young man and some old ones in the house.这座房子里有一个年轻人和几个老人。
（ 2 ） the one ：用来代替同类事物中特指的另一个。
例如：I like the recorder better than the one I bought last year.与去年我买的那个录音机相比，我更喜欢这一个。
（这时， the one 和that 可以互换）（ 3 ） that 表示与前面所指的名词为同类，但不是同一个；而 it 所指的名词为同一个。
That 既可以代替可数名词，也可以代替不可数名词。
例如：The population of China is larger than that of any other country in the world.中国的人口比世界上任何国家的都要多。
I have a very good TV set. It is very large and beautiful.贵州省遵义市第一中学 Chinephone Lew英语的代替现象比汉语普遍，使用代词的场合比汉语多。
大多数句子中均用代词代替上文谈到的人、事物或情况，避免了对较多名词、冠词的反复使用，这样大大简化了句子。
it,that,those,one的区别doc
it、that、those、one、the one、ones及the ones的用法辨析1.it的用法：1)、指代上文提到的单数可数名词，指同一物，即原物（同类同物）。
例：The printer is made in Japan. It was bought last year.2)、指时间、距离、天气、环境。
3)、代替前面出现的整个句子的内容，常作宾语。
4)、固定句型：appreciate it if；hate(like/dislike/love) it when；depend on(rely on/see to) it +that 等从句。
5)、固定搭配：get it 懂了，知道了，理解了；take it 买某物 make it 成功做某事 it doesn’t help 不起作用6)、作形式主语或形式宾语。
如：make/find it+(a) 名词/形容词to do/doing sth7)、指代不明确的人。
8)、动物或婴儿（未知性别的婴儿和孩子）。
练习：1). We should make ____a rule for us roommates to turn off the lights at 10:00 pm.A. allB. oneC. thatD. it2). I hate ____when people talk with their mouths full.A. themB. oneC. thatD. it3). How do you find ____to learn English?A. thatB. thisC. /D. it4). In order to keep our class room clean, we make ____ everyone’s duty to clean the classroom in turn.A. whichB. oneC. thatD. it5). ---Who knocked at the door?---I’ve no idea. I just pretended nobody was at home, so I didn’t ask who ___was.A. heB. sheC. thatD. it2. that的用法：1)、特指，替代前面出现的同类名词，但不是同一个物体（同类异物）。
代词one,ones, it, that与those的用法区别
代词one，ones, it, that与those的用法区别The weather today is warmer than yesterday.A.oneB.itC.that（今天的天气比昨天暖和，你会选哪一个答案？）One, ones, it, that和those都是代词，很多同学对它们的用法区别感到头痛。
实际上，它们的区别并不是很复杂的。
1. one 用来代替前文的单数名词，指同类中的一个。
如：（1）I haven't got a pen. I'll have to buy one. 我没有钢笔，我必须买一支。
本句中，one代替前文提到的钢笔，它相当于“a pen”这两个单词。
One并不指明具体是买哪一支钢笔，只是指钢笔中的一支而已。
（2）Which book is yours? The one on the desk. 哪一本书是你的？课桌上的那本。
本句的one则是代替前文提到的book一词，也就是说，它可以换成book。
这里的one也是指的同类中的一个，虽然特指了，但那是因为后面用on the desk来限定了范围。
2. ones是one的复数形式，因此，它是用来代替前文提到的复数名词，指同类中的一些。
如：Which books are yours? The ones on the desk. 哪一些书是你的？课桌上的那些。
因为前文在用复数books, 所以后文就用ones这个复数形式来代替。
当然，我们也可以直接把ones 换成books, 意思都是一样的，只不过，读起来略显重复而已。
3. it代指上文提到的单数名词，指同一个物。
如：（1）That bike is very beautiful. I want to buy it.那辆自行车非常漂亮，我想买下它。
本句中的it与前文提到的That bike是同一个东西。
如果我们把it换成one, 意思就变了：。
代词it-one-that-用法
代词one，it,that的用法区别1.one, it，that常常用来代替或避免重复某个名词。
例如：①I'm looking for a flat. I’d really like one with a garden.②—Where did you find your watch? —I find it in our classroom.③The population of China is larger than that of any other country。
2。
one可指人或物，只替代单数可数名词，复数用ones。
One是泛指,但有限定修饰语，如the，this, that…修饰就变成了特指.如：①One must do one's duty。
②Mary has a red pencil and Jane has a blue one。
③The new designs are much better than the old ones.3.that只指物,不指人,可替代可数名词或不可数名词，具有“特指”性质。
指的是同类事物中的另一样东西，即同类异物。
如：The library of our school is bigger than that of yours.(that代替的是另一个图书馆。
）4．One 和that 在代替可数名词时，如果没有前置定语只有后置定语时，the one 和that可互换.但该名词如有前置定语，则只能用the one，而不能用that。
例如：①I will take the seat next to the one(=that)by the window.我就坐窗口的那个座位旁边。
②I prefer the large box to the small one。
（one 不可用that替换）。
5．That的复数形式those代替可数名词的复数.可指人或物,一般后面跟修饰语。
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one, it 和that
一、one的用法
one作替代词,相当于"a(an)+名词"。
用来代替前面出现过的"同类"事物,one代替单数可数名词,ones 代替复数可数名词,one不能代替前面的不可数名词。
如:
1. I hope there are enough glasses for each guest to have ____.
A. it
B. those
C. them
D. one
2. -Why don't we take a little break? -Didn't we just have____?
A. it
B. that
C. one
D. this
3. Mr Zhang gave textbooks to all the pupils except ____ who had already taken them.
A. the ones
B. ones
C. some
D. the others
二、it的用法
it用作替代词,代替前面提到过的事物"本身",而one代替前面提到过的"同类"事物。
如:
1. The Parkers bought a new house but ____ will need a lot of work before they can move in.
A. they
B. it
C. one
D. which
2. Tom's mother kept telling him that he should work harder, but ____ didn't help.
A. he
B. which
C. she
D. it
it可作形式主语
当动词不定式、动名词或从句作主语时,通常把它们放在谓语之后,而用it作句子的形式主语。
如:____ is a fact that English is being accepted as an international language.
A. There
B. This
C. That
D. It
it可作形式宾语
当复合宾语中的宾语是不定式、动名词或宾语从句时,往往把宾语放在它的补足语后面,而用it 作形式宾语,放在宾语补足语之前。
如: I hate ____ when people talk with their mouths full.
A. it
B. that
C. these
D. them
it可用于强调结构
要强调句子的某一成分(通常是主语、宾语或状语),常用的结构是"It is/was+被强调部分+that/who+句子的其余部分"。
如果被强调的部分是人,可用who, whom代替that。
如:
1. Was it during the Second World War ____ he died?
A. that
B. while
C. in which
D. then
2.It is the ability to do the job ____ matters, not where you come from or what you are.
A. one
B. that
C. what
D. it
it可用于it doesn't matter句型中。
如:
Does____ matter if he can't finish the job on time?
A. this
B. that
C. he
D. it
三、that的用法
that作替代词,相当于"the+名词",that与it一样,指前面所提到过的事物"本身",that后可有of 短语作后置修饰语,但it不可以。
that既可代替前文出现过的单数可数名词,又可代替不可数名词。
如:
-He was nearly drowned once.
-When was____?
-____ was in 1998 when he was in middle school.
A. that; It
B. this; This
C. this; It
D. that; That。