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代词it。
one。
ones。
that。
those的用法和区别it代指前面提到的事物，没有特定的限定；that代指前面提到的特定的事物，通常与the连用；the one代指前面提到的特定的事物，强调的是单个事物。
如：I saw a bird in the tree。
It was singing.我在树上看到了一只鸟。
它在唱歌。
I saw a bird in the tree。
That bird was singing.我在树上看到了一只鸟。
那只鸟在唱歌。
I saw two birds in the tree。
The one on the left was singing.我在树上看到了两只鸟。
左边那只在唱歌。
⑷.that和those区别：that代指离说话人较近的事物，通常用于单数形式；those代指离说话人较远的事物，通常用于复数形式。
如：That book on the desk is XXX.那本书在桌子上是我的。
XXX.那些书在书架上是她的。
One can only replace countable nouns。
and the plural form is ones。
On the other hand。
that can replace uncountable nouns and countable nouns。
and the plural form is those。
For example。
"There are a lot of apples in the basket。
please pick out the bad ones." "The weather in Beijing is colder than that in Shanghai."The difference een it and that is that it is used to refer to the same thing。
It ,one,that用法辨析
这三个代词经常考查，而且不好区分。
不过，只要你记住以下几点，就可成功解决涉及它们的问题：
it , 指代【同名同物】，表示【特指】，指代上文所提到的同一个对象。
one,指代【同类异物】，表示【泛指】，指代上文所提到的某一类对象中的一个。
相当于【a/an+单数可数名词】。
复数形式是ones。
that ,
一种【用于远指】，表示【特指】，指代上文所提到的同一个对象，经常与this相对使用。
复数为those,this的复数是these；
第二种是【用于比较结构，以保持比较对象相同，为了避免重复】，相当于【the+名词】，表示【特指】。
例如：
I have a story book.【It】is interesting.
我有一本故事书，它很有趣。
My old TV set has been sold.I want to buy a new 【one】.
我的旧电视已经卖了。
我想买一台新的。
【This 】is a desk,【that 】is a table.
这是一张课桌，那是一张饭桌。
Ms Shen's method of teaching is nothing like 【that】of the teachers at my junior high school.
沈老师的教学方法完全不同于我初中老师们的教学方法。
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。
英语中如何用it，one，ones，that，those来指代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. it 代替上文提到的名词，指代同一事物，而不指这一类中的另一个相同的个体。
例如：---Do you want the magazine?---Yes，I want it.I don't want to drink the tea．It is too hot．2. one 通常用来代替上文中出现过的单数可数名词或以可数名词为中心词的词组，one的前面可以有冠词或形容词，也可以有thi s或that，但其前不能有物主代词。
例如：I have 1ost my pen．I’m going to buy one.I don't like this green shirt. I like the blue one.I prefer this one to that one.3．ones是one的复数形式，常用来代替复数可数名词，前面不用物主代词修饰，也不用these 或those来直接修饰，除非ones前面有形容词。
例如：I have a new coat and several old ones.These yellow waistcoats are so small. I want those green ones.4．that用来代替上下文中的名词，它表示与前面同类的东西。
that既可代替可数名词，又可代替不可数名词，常有后置定语，一般不指人。
例如：The price of wheat is higher than that of rice.The population of China is larger than that of Japan.5．those是that的复数形式，可用来替代可数名词的复数形式，表示特指。
one,that,this,it的用法一、关于”one”1. 作为代词•“one”作为代词，可以用来指代前文提到的事物或人。
•例如：“I like this photo, can you take another one?”（我喜欢这张照片，你能再拍一张吗？）2. 表示特定事物或人•“one”可以用来表示特定的事物或人，相当于”某一个”。
•例如：“Which book do you want? I have this one and that one.”（你想要哪本书？我有这一本和那一本。
）3. 表示替代•“one”可用作代替某个不明确的名词，避免重复。
•例如：“I need a pencil. Do you have one?”（我需要一支铅笔，你有吗？）二、关于”that”1. 指示特定事物或人•“that”可以用来指示或指代特定的事物或人。
•例如：“Look at that car over there!”（看那辆车！）2. 引述•“that”可以用来引述前文提到的内容或句子。
•例如：“She said that she would come to the party.”（她说她会来参加聚会。
）3. 强调•“that”可以用来强调一件事物或情况。
•例如：“It is important that you arrive on time.”（你准时到达很重要。
）三、关于”this”1. 指示靠近的事物或人•“this”可以用来指示靠近说话人的事物或人。
•例如：“This book is really interesting.”（这本书真有趣。
）2. 引述•“this”可以用来引述前文提到的内容或句子。
•例如：“John said, ‘This is the best movie I’ve ever seen!’”（约翰说：“这是我看过的最好的电影！”）3. 引出话题•“this”可以用来引出将要讨论的话题。
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。
如：①Today's cellphones are smaller than those(=the ones)used in the past.②The students who do best in exam are not always those(=the ones) with the best brains.6.the one(ones)或that ,those 指代某一名词做定语从句的先行词时，其关系代词which在that之后，which不能省略，而在the one、ones 之后,which可省略。
如：①Their problem today is somewhat similar to that which they faced many years ago.7.代替不可数名词时，应该用that。
如：The equipment is different from that.8..it代替上文所提到的名词时，是指同类事物中的同一样东西，即同类事物。
如：I have lost my pen. I'm looking for it.9.it和that可代替前面整个句子的意思，而one却不能；that可引导一个限定性定语从句，代替某个先行词（单复数名词均可），it和one则不能；it可代替不定式、动名词或从句，用作形式主语或形式宾语，也可用于强调句型中，而one和that则不能。
如：①-I will make bed for you. –It is very kind of you.②Jim said he had read my novel.But that was not possible.③A clock is an instrument that tells time.④The students that surf the Internet will be punished by the teacher.⑤It is nice to see you again.⑥It is no use calling her up.⑦I found it impossible for me to pass the test.⑧It was I who broke your window.(巩固练习)1．-You are learning typing.The computer is very useful.-I hope to have a computer,but I can't afford to buy _____.A.oneB.itC.thatD.this2.This computer is so expensive that I cannot afford to buy____ .Can you bring the price down a little.A.oneB.thatC.itD.this3.-I'd like a book on English reading.-Is the book_______you are looking for?A.oneB.thatC.the oneD.which4.-His car runs much faster than my car.-That is because the engine in his car works far better than______ .A.your oneB.yoursC.that of yoursD.your car's5.My shoes are the same as_____you had on the day before yesterday.A.oneB.onesC.thatD.the ones6 .I was disappointed with the film, I had expected_____to be much better.A.thatB.thisC.oneD.it7.Mr Li gave the textbooks to all the pupils except_____who had already taken them.A.theseB.onesC.the onesD.the others8.I hope there are enough glasses for each guest to have _____ .A.itB.thoseC.themD.one9．I hate_____when people talk with their mouths full.A. itB.thatC.theseD.them10.-Why don't we take a little break?--Didn't we just have _____?A.itB.thatC.oneD.this参考答案：1-5ACCCD 6-10DCDACone,that,it,the 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, it指代同名同物; one与that则指代同名异物。
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”）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 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。
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）3. 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。
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）4. 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。
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）5. 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. it可以替代句中的不定式或从句等, 充当形式主语或形式宾语。
