it用法的五类考点
关于as的用法及解释(通用5篇)
关于as的用法及解释（通用5篇）篇1：it用法？例句：It doesn't have the market to itself.它未能独占市场。
She lost it, just as I said she would.我就说了吧，她把它丢了。
It was a time of peak demand for the product.那是对该产品需求最旺的时期。
It is less of a problem than I'd expected.问题不像我预料的那么大。
It is estimated the project will last four years.据估计，这项工程将持续四年。
篇2：the用法1. 用以特指某（些）人或某（些）事物This is the house where LuXun once lived.这是鲁迅曾经住过的房子。
2. 用于指谈话双方都明确所指的人或事物Open the door, please.请把门打开。
3. 用以复述上文提过的人或事物（第一次提到用“a或an”，以后再次提到用“the”）Once there lived a lion in the forest. Every day the lion asked small animals to look for food for him.从前森林里住着一只狮子。
这只狮子每天都要小动物们为他寻找食物。
4. 用在序数词和形容词最高级前January is the first month of the year.一月份是一年当中的第一个月。
Shanghai is the biggest city in China.上海是中国最大的城市。
5. 表示世界上宇宙中独一无二的事物the sun 太阳the earth 地球the sky 天空the world 世界6. 指由普通名词构成的专有名词the West Lake 西湖the Great Wall 长城the United States 美国the United Nations联合国7. 表示方向、方位in the east 在东方in the front 在前面in the bottom 在底部on the right 在右边8. 在海洋、江河、湖泊、山脉、海峡、海湾等地理名词前 the Pacific Ocean 太平洋the Yellow River 黄河the Tianshan Mountains 天山山脉the Taiwan Straits 台湾海峡9. 在姓氏复数前，表示一家人The Bakers came to see me yesterday.贝克一家昨天来看我。
It的用法
It的用法一it的常用固定词组make it =manage it (成功) put it(表达)Got it (明白) Go for it（努力争取）take it（忍受）T ake it easykeep it up（继续干）Come off it（别吹牛了）Don’t mention it Forget it二it 作代词的用法（1）代替前文提到的东西或事情Eg. T om has failed in the exam, Have you heard about it?(2) 代替同名同物Eg. T om bought a new house, but it needed lots of work before he moved in.Eg. I still remember the accident and the troubles ____ has caused to me?A. whichB. whatC. itD. that(3) 代替指示代词起this, that 的作用Eg. What’s that? It is a radio.Eg. Whose room is this? It is theirs.（4）指明某人某事的身份或不知男女用itEg. Le t’s go to see who it is.Eg. Go to see who is ringing. It is Bill.(5) 指时间，金钱，距离，价值，量度，自然现象等Eg. It’s Sunday today. Eg. It’s very cold.Eg. It’s 5 yuan. Eg. It’ s 5 Kms from A to B.三it 作形式主语的用法（1）It be + adj +of/for sb to do sth(2) It be + adj( ture/ easy/ hard /necessary/ curious /obvious/likely/possible/probable/good/wonderful/natural/certain--) + that/whether 从句Eg. It is likely that I can pass the exam.Eg. It is certain that she will do well in her exam.(3)Itbe+v.p.p(said/reported/believed/supposed/expected/proved/decided---)+ that 从句Eg. It is said that T om has arrived in Beijing.(4)It be + 名词词组(a pity/sham/fact/wonder, an honour/a good thing/nosurprise---)+ that 从句Eg. It is a pity that I can’t go with you.(5)It seems/seemed/happened/appears---+ that 从句Eg. It now appears that they are in need of help.(6)It hits/strikes/occurs to sb + that 从句Eg. It hits me that I should turn to my teacher for help.Eg . It suddenly occurred to him ______ he had left his keys in the office.(12年江西)A. whetherB. whereC. whichD. that(7) It is no use/good +(in)+ving四it 作形式宾语的用法(1)主语+vt (like/dislike/hate/enjoy/make/appreciate/feel/love)+it+if/when引导的宾从Eg. I like _____ in the fall when the weather is clear.A. itB. thatC. oneD.thisEg. I hate it when sb is talking with his mouth full of food.(2)主语+vt(feel/find/consider/think/make---)+it+宾补(n/adj)+to/ving/从句Eg. I think it impolite to talk while eating.Eg. I consider it a great honour to be invited to your party.Eg. We thought it strange that T om didn’t come yesterday.Eg. He has made it clear that he won’t give up.(3)主语+vt(have表明，坚持说take认为，猜想hid e隐瞒publish公布---)+that宾从时，往往在从句前加it作形式宾语Eg. I take it that you will be leaving shanghai soon.Eg. We published it that we had finished it ahead of time.(4)主语+vt(answer for担保count on期待depend on依靠insist on坚持see to确保---)+ that宾从，往往在从句前加it作形式宾语Eg. I’m counting on it that you will come here.Eg. She will see to it that he goes ahead.五it的常用句式(1) It takes/took/will take sb sth to do sth(2) It is time+ for sth/to do sth(3) It be + adj +of/for sb to do sth(4) It is up to youIt is up to you to do sth(5) It is one’s turn/duty to do sth(6) It is no use/good +(in)+ving(7) It (all) depends/That ( all) depends(8) It is a waste of time +ving(9) It is possible/probable that从句(10)It be convenient for sb to do sth(11) It be likely that 从句=sb/sth be likely to do sthIt be not like sb to do sth(12) When it comes to sth/doing sth(13) It is no/not any wonder that从句(14) It/That is the best/worst/most interesting + n + that从句时态用现在完成时Eg. It is the most interesting book that I have read.Eg. It is the most instructive lecture that I ______since I came to this school.A. attentedB. had attentedC. am attentingD. have attented(15) It be not that A but that B(16) It/That/This is the +序数词+time + that从句用现在完成时It/That/This was the +序数词+time + that从句用过去完成时Eg._________________________________________Eg._________________________________________(17) It be/will be+一段时间+before从句=表示再过多久才--Eg. It will be half a year before I come back.Eg. It will be 3 weeks before we have the next exam.Eg. It is 2 hours before the medicine takes effect.Eg. It was some time before we realized the truth.Eg. It was 2 years before he became a doctor.Eg. It was about 600 years ____ the first clock with a face and an hour hand was made.A. beforeB. thatC. untilD. what(18) It be+一段时间+since从句中的动词如果是①延续性动词表示动作从最后一次发出到现在多长时间②短暂性动词表示动作从第一次发出到现在多长时间Eg. It is 3 days since I fell ill.Eg. It is 3 days since I was ill.Eg. It is 5 years since I lived in Beijing.Eg. It is 3 years since he joined the army.Eg. It is years since I enjoyed myself so much.Eg. How long do you suppose it is____ he got the news?A. beforeB. whenC. sinceD. After(19) It be+被强调部分+that/who(主语为人) 的强调句型Eg. It was yesterday that I met T om in the park.▲ Eg. It was yesterday that I met T om in the park. wasn’t it?▲ Eg. Was it yesterday that I met T om in the park?▲ Eg. When was it that I met T om in the park?▲ Eg. My teacher didn’t know when it was that I met T om in the park.▲ Eg. It is not only blind men who make such stupid mistakes. (否定式)▲ Eg. What a wonderful time it was that we had at the party.(感叹句)▲如果强调双宾语中的一个，不论是直接宾语还是间接宾语，根据动词的搭配关系，要加上一个介词to/for.Eg. Mr. Green gave T om a birthday present.→It was Tom that Mr. Green gave a birthday present to.→It was a birthday present that Mr. Green gave to T om.▲强调句型的五类复杂结构Eg. I still remember how many years ago it was thatI met her in the MountHuang.(与宾从结合）Eg. It's that he often fails in exams that makes his parents worried about him.(与主从结合）Eg. It was the news that he has succeeded that inspired them all.(与同从结合）Eg. Is it the school where you once studied that will be rebuilt with the help of the Project Hope?(与定从结合）Eg. It is only when one is ill that one realizes the value of health.(与状从结合）▲ It is/was not until…that从句，其中not until不能分Eg. It was not until I failed in the exam that I realized I should work hard.Eg.—When did you arrive at the party?—It was at sunset _____the clock on the wall struck seven.A. thatB. whereC. whenD. by whichEg. It is in Qingdao ___you’re going to pay a visit to ____this kind of washing machine is produced.A. /; thatB. that; whichC. /; whereD. that; whichEg. It was in the library _______ we often learned by ourselves that I met her for the first time.A. thatB. whereC. whenD. for whichEg. —When did you first meet John?—It was in a cinema _____ a new film was being shown.A. thatB. whereC. whenD. whichEg. —When did you meet your girlfriend for the first time ?—It was in 20002 ______ I was still in college.A. thatB. whereC. whenD. which答案：CABBC(20) It be+介词+时间+that 从句为强调句型Eg. It was at 6 o’clock that I got home yesterday.▲ It be+时间+when 从句为定语从句Eg. It was 6 o’clock when I got home yesterday.▲ It be+介词+地点+that 从句为强调句型Eg. It is on the farm that I work for 3 years.▲ It be+地点+where 从句为定语从句Eg. It is the farm where I work for 3 years.(21) It/That/This is (high/about) time that 从句用过去时=虚拟语气反意疑问句用isn't it?It/That/This was (high/about) time that 从句用过去完成时=虚拟语气反意疑问句用wasn't it?Eg.____________________________________________ Eg.____________________________________________。
人称代词及形物名物的用法5份
人称代词一、含义：表示我（们）、你（们）、他/她/它（们）的词叫作人称代词。
一、人称代词有：I 我you你、你们he他she她it它they他们we我们me（我）、him（他）、her（她）、it（它）、us（我们）、you（你、你们）、them（他们、她们、它们）。
二、人称代词的主格和宾格单数形式：I-me,you-you,he-him,she-her,it-it复数形式：we-us,you-you,they-them三、人称代词在句中的作用1)主格作主语。
如：I am Chinese.我是中国人。
2)宾格作宾语，放在及物动词或介词之后，有时还可以在口语中用作表语。
如：①I don't know her.我不认识她。
(动词宾语)②What's wrong with it?它怎么了？(介词宾语)③Open the door,please.It's me.请开门，是我。
(表语)四、人称代词并列用法的排列顺序1)单数人称代词并列作主语时，其顺序为：第二人称->第三人称->第一人称即：you and I; he/she/itandI; you,he/she/it and I （但表示认错或承担责任时，I应放在首位）2)复数人称代词作主语时，其顺序为：第一人称->第二人称->第三人称即：we and you;you and they;we，you and they五、特殊用法：国家、城市、可爱的小动物等，用she来代替；体积庞大的动物或猛兽，用he来代替；小孩、婴儿或性别不明的人、天气、时间等用it来代替。
注：you既是"你"或"你们"的主格，又是它们的宾格；her既是"她"的所有格，又是它的宾格。
我们可以根据它们在句子中的位置来判断它们属于主格、所有格还是宾格。
and是一个我们常用来连接两个词的连接词。
涉及it用法的五类考点
涉及it用法的五类考点一、考查it 用作形式主语的用法当不定式、动名词、从句等用作主语时，为避免头重脚轻，通常在句首使用形式主语it，而把真正的主语放在句子末尾。
如：It’s no good sitting up too late. 熬夜没有好处。
It is quite clear that he has read the book. 很显然，他读过这本书。
It doesn’t matter what he says. 他说什么没关系。
【特别提醒】注意it用作形式主语的三类特殊句式：1.用作动词look, seem, appear, happen, occur, follow等的主语(后接that从句或as if从句)。
如：It seems that he knows everything. 他好像什么都知道。
It (so) happened that I had no money with me. 碰巧我没带钱。
2.当系表结构后接有if 或when引出的状语从句时，通常在系表结构前使用形式主语表示说话人对某情况的看法。
如：It was a great surprise to me when he did a thing like that. 他这样做使我很吃惊。
It would be a tragedy if anything went wrong. 如果出了什么事就是一个悲剧。
3.用于if it were not for… / if it hadn’t been for…(若不是因为)。
如：If it hadn’t been for the freezing wind they could have reached the injured man in time. 要不是有刺骨的寒风，他们就及时赶到伤员身边了。
二、考查it 用作形式宾语的用法当不定式、动名词、从句等用作宾语且其后跟有宾语补足语时，就应在宾语补足语前使用形式宾语，而将真正的宾语移至句末：We found it difficult to persuade her. 我们发现很难说服她。
it做形式宾语的五种形式
it做形式宾语的五种形式
it做形式宾语的五种形式如下：
1、主语+think+形式宾语it+形容词/名词+to do sth.
2、主语+believe+形式宾语it+形容词/名词+to do sth.
3、主语+make+形式宾语it+形容词/名词+to do sth.
4、主语+find+形式宾语it+形容词/名词+to do sth.
5、主语+consider+形式宾语it+形容词/名词+to do sth.
形式宾语介绍：
当不定式（短语）、动名词（短语）或从句在某个句子中作宾语时，为保持句子结构平衡，避免句式结构的混乱，常用it作形式宾语，而将真正的宾语放在句尾。
此时it仍只起先行引导作用，本身无词义。
特殊形式宾语：
通常意义的形式宾语主要见于真正宾语为不定式、动名词、从句等且其后跟有宾语补足语时的情形，即用于“动词+it+宾语补足语+真正的宾语”这样的结构，但以下几类形式宾语却比较特殊，其后没有宾语补足语。
宾语介绍：
宾语，也称受词，是指一个动作（动词）的接受者。
宾语分为直接宾语和间接宾语两大类，其中直接宾语指动作的直接对象，间接宾语说明动作的非直接，但受动作影响的对象。
一般而言，及物动词后面最少要有一个宾语，而该宾语通常为直接宾语，有些及物动词要求两个宾语，则这两个宾语通常一个为直接宾语，另一个为间接宾语。
在英语中，有些动词接了一个宾语后句子意思仍不完整，还需要再加上一个词或短语放在宾语之后来补充说明其身份、特征、状态或所做的动作，这种“宾语+宾语补足语”结构称为复合宾语。
it的9个常用特殊句型
含it的9个常用特殊句型1. It appears/ happens/ seems/ says that…It seems that he is always correct. 他好像总是对的。
It happened that I had no money with me. 碰巧我当时没有带钱。
2. It is said/ reported/ believed/ understood that…It is said that he has joined the Party. 据说他已经入党了。
3. It doesn’t matter…It doesn’t matter what he says. 他说什么都没关系。
4. (It is) no wonder( that) …It’s no wonder he is not hungry; he has been eating sweets all day. 难怪他不饿，他整天在吃糖果。
5.It is a waste of time /money doing sth.It’s a waste of time your talking to him. 你和他谈是浪费时间。
6. It makes no/mush difference…It’s doesn’t make much difference my being there. 我在不在那儿没有什么影响。
7. it takes sb. some time to do sth.It took me nearly an hour to work out the problem. 花了我差不多一个钟才做出那道题.8. It’s one’s turn to do sth.It’s my turn to clean the classroom. 是轮到我打扫教室的了。
9.If it were not for…If it were not for your help, I would still be homeless. 若不是你帮忙，我现在还是无家可归。
thisthat和it用法
一，this，that和it用法(1)this和that是指示代词，it是人称代词。
(2)距离说话人近的人或物用this, 距离说话人远的人或物用that。
如： This is a flower. 这是一朵花。
(近处) That is a tree. 那是一棵树。
(远处)(3)放在一起的两样东西，先说this, 后说that。
如：This is a pen. That is a pencil. 这是一支钢笔。
那是一支铅笔。
(4)向别人介绍某人时说This is,, 不说That is,。
如：This is Helen. Helen, this is Tom. 这是海伦，海伦，这是汤姆。
(5)This is 不能缩写, 而That is可以缩写。
如：This is a bike. That’s a car. 这是一辆自行车。
那是一辆轿车。
(6)打电话时，介绍自己用this, 询问对方用that。
如：—Hello! Is that Miss Green? 喂，是格林小姐吗？—Yes, this is. Who’s that? 是的，我是，你是谁？注意：虽然汉语中使用“我”和“你”，但英语中打电话时绝不可以说：I am,, Are you,？/Who are you?(7)在回答this或that作主语的疑问句时, 要用it代替this或that。
如：①—Is this a notebook? 这是笔记本吗？—Yes, it is. 是的，它是。
②—What’s that? 那是什么？—It’s a kite. 是只风筝。
二．these和those用法this, that, these和those是指示代词，these是this的复数形式,指时间,距离较近的或下面要提到的人或事;those是that的复数形式,指时间、距离较远或前面已经提到过的人或事物。
①This is my bed. That is Lily’s bed. 这是我的床。
高考英语It的用法
高考英语It的用法It是高考英语中一个极其重要的词，其用法多样，在不同的语境中具有不同的意义。
下面我们将从it的用法、句型和固定搭配三个方面进行讲解。
一、it用作实词1、表示时间、天气、距离、温度等自然现象。
例如：It is Monday today.今天是星期一。
It is raining outside.外面正在下雨。
It is 5 kilometers away from here.距离这儿有5公里远。
2、表示观点、看法、态度等主观想法。
例如：I think it is a good idea.我认为这是一个好主意。
We think it is important to learn English well.我们认为学好英语很重要。
二、it用作形式主语当不定式、动名词或从句作主语时，为了保持句子结构平衡，避免头重脚轻，常用it作形式主语，代替不定式、动名词或从句，而把真正的主语放在句尾。
例如：It is important to learn English well.学好英语很重要。
It took me an hour to finish the homework.我花了一个小时完成作业。
三、it用作形式宾语当不定式、动名词或从句作宾语时，为了保持句子结构平衡，避免头重脚轻，常用it作形式宾语，代替不定式、动名词或从句，而把真正的宾语放在句尾。
例如：I think it is important to learn English well.我认为学好英语很重要。
He found it hard to learn English well.他发现学好英语很难。
四、it用于强调句型中强调句型是英语中一个重要的句型，用于突出强调某个成分，特别是主语、宾语和状语等。
在强调句型中，it没有实际意义，只是起到引导作用。
例如：It is I who am the best student in my class.我是班里最好的学生。
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it的五类考点和用法一、考查 it 用作形式主语的用法当不定式、动名词、从句等用作主语时，为避免头重脚轻，通常在句首使用形式主语it，而把真正的主语放在句子末尾。
如：It’s no good sitting up too late. 熬夜没有好处。
It doesn’t matter what he says. 他说什么没关系。
【特别提醒】注意it用作形式主语的三类特殊句式：1.用作动词look, seem, appear, happen, occur, follow等的主语(后接that从句或as if从句)。
如：It seems that he knows everything. 他好像什么都知道。
"It (so) happened that I had no money with me. 碰巧我没带钱。
2.当系表结构后接有if 或when引出的状语从句时，通常在系表结构前使用形式主语表示说话人对某情况的看法。
如：It was a great surprise to me when he did a thing like that. 他这样做使我很吃惊。
It would be a tragedy if anything went wrong. 如果出了什么事就是一个悲剧。
3.用于if it were not for… / if it hadn’t been for…(若不是因为)。
如：If it hadn’t been for the freezing wind they could have reached the injured man in time. 要不是有刺骨的寒风，他们就及时赶到伤员身边了。
二、考查 it 用作形式宾语的用法当不定式、动名词、从句等用作宾语且其后跟有宾语补足语时，就应在宾语补足语前使用形式宾语，而将真正的宾语移至句末：~We found it difficult to persuade her. 我们发现很难说服她。
He makes it a rule to get up before dawn. 他习惯于天亮前起床。
I think it very strange that he goes out walking almost every night. 我认为他几乎每晚都出去散步是很奇怪的。
【特别提醒】注意it用作形式宾语的三类特殊句式：1. 动词+it+if / when从句当enjoy, like, dislike, love, hate, prefer, appreciate等动词后需要接一个if或when引导的从句时，此时必须要先在动词后接it作形式宾语。
如：She won’t like it if you arrive late. 她不喜欢你迟到。
He hates it when people use his bike. 他讨厌别人用他的自行车。
>I’d prefer it if I didn’t have to do so much work. 要是我不必做那么多工作，那就太好了。
I would appreciate it very much if you would help me with it. 如果你能帮助我做这事，我会十分感激。
2. 动词+介词+it+that从句能用于此句型的主要有三个动词，即depend on, answer for, see to。
如：You may depend on it that he will turn up in time. 你可以相信他会及时赶到的。
I can’t answer for it that the boy is honest. 我不能保证这个男孩是诚实的。
I’ll see to it that all these letters will be sent to the post before twelve. 我将注意让所有的信件在12点以前送到邮局。
三、考查 it 在强调句中的用法—强调句的基本结构是：It+be+被强调部分+that(who)+其他部分。
如： It was yesterday that he got married. 他是昨天结婚的。
It was a computer that he bought last week. 他上个星期买的是一台电脑。
【特别提醒】对于强调句的复习要特别注意两种情形：当强调句有插入语或复杂修饰语时：It was lack of money, not of effort, that defeated their plan. 他们的计划受挫，原因是缺少钱而不是没有尽力。
It was more in sorrow than in anger that he criticized his former colleague. 他批评以前的同事，并非出于气愤而是为他惋惜。
2.当强调为特殊疑问句时：！Who was it that won the World Cup in 1982 谁赢得了1982年的世界杯 How long ago is it that you last saw her 你上一次看见她是多久以前的事四、考查 it 与 one 的区别两者均可代替前面提到的事物，区别是：it指的是与前面已提到的事物为同一物，此时的it等于“the (this, that, my...)+名词”；而one 指的是与前面已提到的事物为同一类物，此时的one 等于“a+名词”。
比较I have a dictionary but I’ve lent it to Mary. 我有一本词典，但把它借给玛丽了。
I haven’t a dictionary; can you lend me one 我没有词典，你能借我一本吗五、考查 it 在习语中的用法包括it的习语很多，比如make it就是其中很重要的一例。
如：You can make it if you hurry. 如果你赶快还可以及时赶到。
`You needn’t worry; he will make it. 你不必担心，他会办成的。
含有“It is …”的句型一、it指代时间时，有如下一些句型：（1）It is time (for sb.) to do sth.It is (high/about) time that sb. should do / did sth.(虚拟语气)例：① It's time for lunch.② It's time for us to clean the house.③ It's time that we should clean the house.；＝It's time that we cleaned the house.(2) It is/was + 时间+ since … 从……已多久了。
It is three years since I met him in Beijing.It was a long time since I (had) lived in that small mountain village with these farmers.（注意两句中的时态）It is five months since I arrived in New York.我到纽约已经五个月了。
It is five months since I was in New York.我离开纽约已经五个月了。
（注意：终止性动词表示从动作发生时算起；如果是状态动词或持续性动词，则从动作或状态结束时算起。
）(3) It / This is the first / second…time that－从句(必须使用现在完成时),这是某人第……次做了某事。
It / That was the first / second…time that－从句(必须使用过去完成时)例：①It is the second time that she has visited the Great Wall.②This was the first time that I had come late to school.(4) It was ＋时间点＋ when －从句例： It was evening when we got home.＝It was evening in which we got home.(5) It was / will be ＋ some time ＋ before －从句!这个句型中时间都是时间段，如long、years、months、weeks、five days、three hours、twenty minutes等。
不过主句的时态多用一般将来时或一般过去时。
例：①过了5年他们才从北大毕业。
It was five years before they finally graduated from Beijing University.②不久，我们就要从我们学校毕业了。
It won't be long before we graduate from our school.二、it作形式主语（1）It is + 形容词（+of / for sb.）+ to do sth.通常用of的词有brave、clever、careful、hopeless、kind、good、naughty、nice、silly、stupid、foolish、wise等。
~（2）It is + 形容词 + that + sb. + (should) do sth.（虚拟语气）能用于这个句型的形容词有strange、wonderful、natural、good、proper、right、wrong、well、fortunate、important、necessary、useless、likely、probable、impossible等。
有时可省去should 而直接用动词原形。
如：It is important that we should pay close attention to grain.It is natural that he（should）say so.（3）It is no use/ good + doing sth.It is no use trying again = It is of no use to try again.（4）It is said/reported/announced/ (well) known … that…（5）It is up to sb. to do sth … 应由某人做某事。