代词one, it，that的用法在历届高考题中出-现的频率较高，是高考的热门之一嗯。小编今天就迎难而上，为我们搞定这几个考点嗯。
基本概括即是，it指代的是特指同类同物啊；that指代的是特指同类异物，常经常使用于同类的东西之中的对比啊；one指的是（泛指）左右文中提到的同类东西中的一位嗯。以下是详细的区分
1.one, it, that常经常使用来取代或者防止重复某个名词嗯。比如
I'm looking for a flat. I'd really like one with a garden.
我在找一套公寓嗯。我好要一位带花园的公寓嗯。
Where did you find your watch? - I find it in our classroom.
你在那里找出你的腕表的吗？我在课堂里找出的嗯。
The population of China is larger than that of any other country.
祖国的人丁比任何其余国家都多嗯。
2.one可指人或者物，只替换单数可数名词，复数用ones. One是泛指，但有装饰语，如the, this, that…装饰就变成为了特指嗯。如
One can fly to New York in three hours. （one=anybody）
坐飞机三个小时就能抵达纽约嗯。
One must do one's duty.（one=anybody）
每逐一私人必须尽我的责任嗯。
Mary has a red pencil and Jane has a blue one.
玛丽有一支红铅笔，简有一支蓝铅笔嗯。
The new designs are much better than the old ones.
新计划比旧计划好许多嗯。
I can't find my hat. I think I must buy one. 我找不到我的帽-子了嗯。我想我该去买一顶嗯。
A chair made of steel is stronger than one made of wood.
钢做的椅子比木头做的椅子牢靠嗯。
（该句中one能够换成a chair）
The one ／That on the table is mine. 桌上的哪个是我的嗯。
他即是哪个导师，是學生们喜好的哪个导师嗯。
（该句中The one取代东西，而且也能够或者者用That）
He is the teacher, the one who is loved by the students.
（该句中the one取代别人，不行以用that）
I like this pen more than that one.
我喜好这支钢笔凌驾喜好那支钢笔嗯。
（one取代可数名词单数pen）
I have lost my umbrella; I think I must buy one.
我把伞丢了啊；我想我必须买一位嗯。
（one在该句中表泛指，由于my umbrella以前丢了）
There were a few young people and some older ones in the house.
屋子里有几个年轻人和一些暮年人嗯。
（ones取代可数名词复数people）
one能够取代与前面同类不统一的东西啊；能够取代某类东西中的任何一位啊；能够做同位语，重复指代前面的东西，后面有定语从句用以进一步声明前面的名词嗯。
Somebody(Someone) is knocking at the door.有人在敲门嗯。
这里的Somebody(Someone)不行以用One，由于这个敲门的人分明不包罗谈话人和听话人在内嗯。
Meeting my uncle after all these years was an unforgettable moment，______ I will always treasure.
A.that B.one C.it D.what (高考真题)
谜底是B，one以后省掉了充任treasure宾语的that啊；而one又是an unforgettable moment同位语，且I will always treasure又是one的定语从句嗯。
注重
one表泛指，十分于a/an+名词嗯。
one只能取代可数名词，其复数形势是ones嗯。
one能够依照语义在他的前面或者以后加之一些定语嗯。
one前面不行以直-接加不定冠词（a / an）或者物主代词，one前以前有形容词时，则能够加不定冠词或者物主代词啊；one前加the与否，取决因而否特指，如果特指就加the嗯。
one既能够代指物，也能够或者者代指人嗯。
Our original plan was overtaken by events and we had to make a new one.
咋们一开始的谋划没赶上转变，只好再订一位新的嗯。
If the door is warped, you'd better buy a new one.
如果门变形了，你最好买个新的来嗯。
Bury the old world and build a new one.
埋葬旧世界，建设新世界嗯。
The light bulb in the bathroom burned out and father put in a new one.
沐浴间里的灯泡烧坏了，父亲装上一只新的嗯。
3.that只指物，不指人，可替换可数名词或者不行数名词，拥有“特指吧”性子嗯。指的是同类东西中的另一样东-西，即同类异物嗯。常经常使用于同类的东西两个或者几个之中的对比嗯。如
The library of our school is bigger than that of yours.咋们学堂的图书馆比你们学堂的图书馆大嗯。
(that取代的是另一位图书馆，对应来说也是详细的特指的某图书馆嗯。)
The climate here is said to be like that of Tokyo.听说这里的天气和东京的天气相像嗯。
that指代的是 the climate （of Tokyo）,分明表现的是特指嗯。
The population of Shanghai is larger than that of Beijing.上海的人丁比北京的多嗯。
That指代的是the population of Beijing，分明表现的是特指嗯。
The weather today is warmer than______ yesterday.
the one B.one C.that D.which
谜底为C，分明是同类异物之中的对比，that指代的是 the weather yesterday.
4．One 和that 在取代可数名词时，如果有无前置定语唯一后置定语时，the one 和that可交换嗯。但该名词若有前置定语，则只能用the one,而不行以用that嗯。简易的说，即是one十分于an/a+名词，that十分于the+名词嗯。比如
I will take the seat next to the one(=that)by the window.我将坐靠近窗口哪个坐位的隔邻坐位嗯。
I prefer the large box to the small one.(one 不行用that调换 )嗯。
我喜好大盒子而不-是小盒子嗯。
The water in the cup is hotter than that in the pot.
水杯里的水比锅里的水热嗯。
（该句中that能够换成 the water）
Mary's handwriting is far better than that of Peter.
玛丽的书法比彼得好许多嗯。
（that取代不行数名词 handwriting）
These pictures are more beautiful than those.
这些画比那些画美丽 嗯。
（those取代可数名词复数 pictures）
He advised the farmers to choose the best seed-heads, the ones ／those that had the best color.
他建议农民选择最好的种穗，那些最好的种穗拥有最好的色嗯。
（该句中the ones取代东西，而且也能够或者者用those）
The hat you bought is bigger than that I bought.(同类但区别个)
你买的那顶帽-子比我买的大嗯。
that取代与前面同类不统一的东西嗯。that是特指，十分于the+名词嗯。他能够取代可数名词，也能够或者者取代不行数名词嗯。取代可数名词时，复数形势为those嗯。that能够依照语义在他的以后加之一些定语，大部-分是of短语啊；他的前面不行以存在任何定语嗯。而且that只能代指物嗯。
5．That的复数形势those取代可数名词的复数嗯。可指人或者物，一样平常以后跟装饰语嗯。如
Today's cellphones are smaller than those(=the ones)used in the past.
今天的手机比以前用的小嗯。
The students who do best in exam are not always those(=the ones) with the best brains.
审核成就最好的學生一开始不总是那些脑子最机灵的學生嗯。
I think you'll find these more comfortable than those.
我想你会以为这些比那些更恬静嗯。
Salaries are higher here than those in my country.
这里的薪水比我国的高嗯。
Traditionally reared animals grow more slowly than those reared under intensive farming conditions.
按传统办法饲养的牲畜比召集饲养的长得慢嗯。
Such people often experience less stress than those in the ranks immediately below them.
这些人蒙受的压力经常小于那些职位仅次于你们的人嗯。
Vitamins in solution are more affected than those in solid foods.
溶液里的维生素比固体食物里的维生素遭到的影响更大嗯。
Many patients prefer hand-held shower heads rather than those fixed to the wall
许多病人更喜妙手握式的淋浴喷头而不-是牢固在墙上的那种嗯。
Farms in France are much smaller than those in the United States or even Britain.
法国的农场比美国甚至是英国的农场都要小许多嗯。
Southerners smoke less and drink less than those in other parts of the country.
与这个国家其余场所的人对比，南方人吸烟和饮酒都对比少嗯。
Gardens on the windward side of a hill receive more rain than those on the lee side.
山坡向风面的花园比背风面的雨水多嗯。
The goods in this mall are more expensive than those in other places.
这家商场里的商品比其余场所贵嗯。
The enemy hidden in our ranks are of course much more dangerous than those acting in broad daylight.
潜伏在咋们部-队中的敌人固然要比明目张胆的敌人越发危急嗯。
6.the one(ones)或者 that ,those 指代某一位词做定语从句的先行词时，其关系代词which在that以后，which不行以省掉，而在the one.ones 以后,which可省掉嗯。如
Their problem today is somewhat similar to that which they faced many years ago.
你们今天的疑与多年前的疑有一些相似嗯。
The true cost often differs from that which had first been projected
现实本经常与一最先的时刻谋划的有所区别嗯。
The United States will do that which is necessary to meet its obligations to its own citizens
美国将为我的农民尽其应尽的责任嗯。
My teaching style is similar to that of most other teachers.
我的教育风格和大部-分老师相似嗯。
The basic design of the car is very similar to that of earlier models.
这类汽车的基本计划与早期的样式十分相似嗯。
The school's approach must be complementary to that of the parents.
学堂与家长的教育办法必须珠联璧合嗯。
Europe's foreign policy is inextricably linked with that of the US.
欧洲的对外政策和美国的精密相扣嗯。
The present position of the house coincides with that of an earlier dwelling.
这栋屋子现在的职位恰与本衡宇的职位一样嗯。
The US air travel market dwarfs that of Britain.
与美国航空游览市场比起身，英国的航空游览市场小巫见大巫嗯。
7.取代不行数名词时，应该用that嗯。如
The equipment is different from that.
这个装备和哪个装备不一样嗯。
The population of China is larger than that of Japan.(that取代不行数名词population,不行用the one调换)
祖国的人丁比日本多嗯。
The headteacher in your class is younger and more active than that in theirs.(that取代可数名词headteacher,可用the one调换)
你们班的班主任比你们班的班主任更年轻.更活跃嗯。
8.it取代上文所提到的名词时，是指同类东西中的统一样东-西，即同类东西嗯。如
I have lost my pen. I'm looking for it. 我的钢笔丢了嗯。我在找嗯。（该句中it即是指前面的my pen）
I have lost my umbrella; I'm looking for it.
我把伞丢了啊；我在找嗯。
（该句中it即是指前面的my umbrella）
I can't find my hat. I don' t know where I put it. ( 统一物)
我找不到我的帽-子嗯。我不知道我把他放在哪了嗯。（该句中it即是指前面的my hat）
9.it和that可取代前面所有句子的意义，而one却不行以啊；that可指导一位性定语从句，取代某个先行词（单复数名词均可），it和one则不行以啊；it可取代不定式.动名词或者从句，用做形势主语或者形势宾语，也可用于重伸句型中，而one和that则不行以嗯。
He said he had never met her,and it is not true.(it替换前面所有句子He said)
他说他从未见过他，这不-是确实嗯。
I hate it when people talk with their mouths full.(it取代以后所有句子when people talk with)(NMET'98)
我厌坏人们满嘴食物谈话嗯。
He may come or may not come .I am not too sure about that.
他应该来也应该不来，我对此不太一定嗯。
that指代前面一位句子
He always goes to work late ,which makes his boss angry and disappointed.
他总是晚点，这使他的老板既生气又缺少信心嗯。
Which指导非制约性定语从句，指代前面一位句子嗯。
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