it 的8种用法

It的用法~

非人称代词“它”，可以代“天”“地”等一切事务，无论具体的还是抽象的，用做句子的主语、宾语。如：It is raining. 天在下雨。I love it! 我太喜欢它了。

该句型是强调句型，将被强调的放在前面，其他部分置于之后，强调的主语如果是人，可以用来替换，如果把这种句型结构划掉后，应该是一个完整无缺的句子，这也是判断强调句型与其他从句的方法。

It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father.

It was with great joy ___he received the news that his lost daughter had been found. (2004 福建)

A. because B. which C. since D. that (D)

2. It is not until +被强调的部分+ that

该句型译成汉语“直到……才”，可以说是的强调形式。It was not until she took off her dark glasses that I realized she was a film star. =Not until she took off her dark glasses did I realize she was a film star. =I didn’t realize she was a famous film star until she took off her dark glasses.

It was ___back home after the experiment. (2004 湖北)

A. not until midnight did he go

B. until midnight that he didn’t go

C. not until midnight that he went

D. until midnight when he didn’t go (C)

3. It is clear (obvious, true, possible, certain) that….

该句型中it是形式主语，真正的主语是that引导的主语从句，常译为“清楚（显然、真的、肯定）”是主语从句最常见的结构。

It is very clear that he’s round and tall like a tree.

=That he’s round and tall like a tree is very clear.

4. It is important (necessary, right, strange, natural…) that…

该句型和上一句同属一个句型。由于主句中的形容词不同，that后的从句中要用虚拟语气（should+动词原形）should 可以省去。建议记住该句型中的形容词。

It is important that we (should) learn English well.

It is necessary that he (should) remember these words.

5. It is said (reported, learned…) that…

该句型中的it 仍是形式主语，真正的主语是that 引导的主语从句。该结构常译为“据说（据报道，据悉……）

It is said that he has come to Beijing.

It is reported that another earth satellite has been put into orbit.

6. It is suggested (ordered…) that…

该句型和上一句属一个句型。主句中的过去分词是表示请求、建议、命令等词时，that后的从句要用虚拟语气 （should+动词原形）。可以省略，常译为“据建议；有命令……”

It is suggested that the meeting (should) be put off.

It was ordered that we (should) arrive there in two hours.

7. It is a pity (a shame…) that …

在该句型中，that后的从句一般用虚拟语气（should+动词原形），should可以省去，表示出乎意料，常译为“竟然”。没有这种意义时，则不用虚拟语气。

It is a pity that such a thing (should) happen in your class.

这种事竟然发生在你们班上，真是遗憾。

It is a pity that he is ill.

他生病了，真遗憾！

8. It is time (about time, high time) that…

该句型中that后的从句应该用虚拟语气，值得注意的是：常用过去时态表示虚拟，有时也用should+动词原形，should 不能省。常译为“是（正是）……的时候……”

It is time that children should go to bed.

=It is time that children went to bed.

9. It is the first (second, …)time that…

该句型应和上一个句型区别开来。该句型中不用虚拟语气，而用完成时态。至于用哪种完成时态，由主句的谓语动词的时态来决定。如果是一般现在时，从句用现在完成时态；如果是一般过去时，从句则用过去完成时态。该结构中that可以省去；it有时用this替换，常译为“是第一（二,…）次…”。

10. It is …since…

该句型主要用作处理瞬间动词的完成时，要和表示一段时间的时间状语连用。主句中是时间作表语，其时态是现在时和完成时，引导的从句通常是一般过去时态，而且是瞬间动词。如果主句是一般过去时，从句则用过去完成时。

It is (has been) 5 years since his father died.

It is almost five years ___we saw each other last time. (2005 北京)

A. before B. since C. after D. when(B)

11. It is …when…

该句型中的when引导的是一个时间状语从句，主句中的it指时间，表语由具体的时间充当。常译为“当……的时候，是……”

It was 5 o’clock when he came here.

12. It be…before…

该句型主句中的it指时间，主句中的时态常是一般将来时或过去时两种时态，主句中的表语多是long ,not long ,3 days, 2 weeks等表示时间段的词和短语。常译为“…之后才”，“没过……就……”

It was 3 days before he went to Beijing.

It will not be long before he finishes his job.

13. It happens (seems, looks, appears) that…

该句型中的it 是形式主语，that 引导的是主语从句，主句中的happen, seem等词是不及物动词。

It happened (so happened) that he met his teacher in the street. (碰巧……)

It seems that he will be back in a few days. (看来……)

The Foreign Minister said, “___our hope that the two sides will work towards peace.” (2004北京)

A. This is B. There is C. That is D. It is (D)

14. It takes sb…to do sth.

该句型中的不定式是真正的主语，是形式主语，句型中的直接宾语是时间。常译为“做……要花费某人……”

It took thousands of people many years to build the Great Wall.

15．It is no good (use) doing sth.

该句型中的真正主语是动名词短语，主句中的表语可以是 no good (not any good), no use (not any use ).

It is no good learning English without speaking English.

16. It doesn’t matter whether…

该句型中的引导的从句是真正的主语，该句型译为“不论（是否）……没关系……

It doesn’t matter whether they are old.

17．It is kind (of sb) to do sth.

该句型中的不定式短语是真正主语，如果不定式的逻辑主语是由of引出，主句中的形容词必须是能表示逻辑主语的形容词。常见的有：bad, brave, careless, clever, cruel, foolish good (好心的),honest, horrible, kind, lazy, modest, naughty, nice (有教养的),polite, rude, silly, stupid ,wise ,wrong等。这个句型可以改写为sb.is kind to do sth.

It is kind of you to stay so =You are kind to say so.

18. It is necessary (for sb) to do sth

该句型与上一句统属一个句型。如果不定式的逻辑主语是由for 引出的，主句的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的形容词。常见的形容词有：

Important,necessary,natural,easy,safe,common,,normal,hard,difficult,dangerous,unusual,grape, impossible, pleasant.等。

It is important for her to come to the party. =It is important that she (should) come to the party.

19. It looks (seems) as if …

该句型中it 无意义。As if 引导一个状语从句，常译为：“看起来好像……”如果与事实不相符合，则用虚拟语气。

It looks as if he is ill. （真的病了）

It looks as if he was ill. （事实上没有生病）

It seemed as if he was dying.

20. We think it important to learn a foreign language.

该句型中的it作形式宾语。为了记忆方便我们可称该句型为“7123结构”

7指主句中的常用的动词：think, believe, make, find, consider, feel, take.

1指的是形式宾语it .

2指的是宾补的两种形式：形容词和名词

3指的是真正宾语的三种形式：不定式短语，动名词短语或that引导的宾语从句。

该句型是强调句型，将被强调的放在前面，其他部分置于之后，强调的主语如果是人，可以用来替换，如果把这种句型结构划掉后，应该是一个完整无缺的句子，这也是判断强调句型与其他从句的方法。

It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father.

It was with great joy ___he received the news that his lost daughter had been found. (2004 福建)

A. because B. which C. since D. that (D)

2. It is not until +被强调的部分+ that

该句型译成汉语“直到……才”，可以说是的强调形式。It was not until she took off her dark glasses that I realized she was a film star. =Not until she took off her dark glasses did I realize she was a film star. =I didn’t realize she was a famous film star until she took off her dark glasses.

It was ___back home after the experiment. (2004 湖北)

A. not until midnight did he go

B. until midnight that he didn’t go

C. not until midnight that he went

D. until midnight when he didn’t go (C)

3. It is clear (obvious, true, possible, certain) that….

该句型中it是形式主语，真正的主语是that引导的主语从句，常译为“清楚（显然、真的、肯定）”是主语从句最常见的结构。

It is very clear that he’s round and tall like a tree.

=That he’s round and tall like a tree is very clear.

4. It is important (necessary, right, strange, natural…) that…

该句型和上一句同属一个句型。由于主句中的形容词不同，that后的从句中要用虚拟语气（should+动词原形）should 可以省去。建议记住该句型中的形容词。

It is important that we (should) learn English well.

It is necessary that he (should) remember these words.

5. It is said (reported, learned…) that…

该句型中的it 仍是形式主语，真正的主语是that 引导的主语从句。该结构常译为“据说（据报道，据悉……）

It is said that he has come to Beijing.

It is reported that another earth satellite has been put into orbit.

6. It is suggested (ordered…) that…

该句型和上一句属一个句型。主句中的过去分词是表示请求、建议、命令等词时，that后的从句要用虚拟语气 （should+动词原形）。可以省略，常译为“据建议；有命令……”

It is suggested that the meeting (should) be put off.

It was ordered that we (should) arrive there in two hours.

7. It is a pity (a shame…) that …

在该句型中，that后的从句一般用虚拟语气（should+动词原形），should可以省去，表示出乎意料，常译为“竟然”。没有这种意义时，则不用虚拟语气。

It is a pity that such a thing (should) happen in your class.

这种事竟然发生在你们班上，真是遗憾。

It is a pity that he is ill.

他生病了，真遗憾！

8. It is time (about time, high time) that…

该句型中that后的从句应该用虚拟语气，值得注意的是：常用过去时态表示虚拟，有时也用should+动词原形，should 不能省。常译为“是（正是）……的时候……”

It is time that children should go to bed.

=It is time that children went to bed.

9. It is the first (second, …)time that…

该句型应和上一个句型区别开来。该句型中不用虚拟语气，而用完成时态。至于用哪种完成时态，由主句的谓语动词的时态来决定。如果是一般现在时，从句用现在完成时态；如果是一般过去时，从句则用过去完成时态。该结构中that可以省去；it有时用this替换，常译为“是第一（二,…）次…”。

10. It is …since…

该句型主要用作处理瞬间动词的完成时，要和表示一段时间的时间状语连用。主句中是时间作表语，其时态是现在时和完成时，引导的从句通常是一般过去时态，而且是瞬间动词。如果主句是一般过去时，从句则用过去完成时。

It is (has been) 5 years since his father died.

It is almost five years ___we saw each other last time. (2005 北京)

A. before B. since C. after D. when(B)

11. It is …when…

该句型中的when引导的是一个时间状语从句，主句中的it指时间，表语由具体的时间充当。常译为“当……的时候，是……”

It was 5 o’clock when he came here.

12. It be…before…

该句型主句中的it指时间，主句中的时态常是一般将来时或过去时两种时态，主句中的表语多是long ,not long ,3 days, 2 weeks等表示时间段的词和短语。常译为“…之后才”，“没过……就……”

It was 3 days before he went to Beijing.

It will not be long before he finishes his job.

13. It happens (seems, looks, appears) that…

该句型中的it 是形式主语，that 引导的是主语从句，主句中的happen, seem等词是不及物动词。

It happened (so happened) that he met his teacher in the street. (碰巧……)

It seems that he will be back in a few days. (看来……)

The Foreign Minister said, “___our hope that the two sides will work towards peace.” (2004北京)

A. This is B. There is C. That is D. It is (D)

14. It takes sb…to do sth.

该句型中的不定式是真正的主语，是形式主语，句型中的直接宾语是时间。常译为“做……要花费某人……”

It took thousands of people many years to build the Great Wall.

15．It is no good (use) doing sth.

该句型中的真正主语是动名词短语，主句中的表语可以是 no good (not any good), no use (not any use ).

It is no good learning English without speaking English.

16. It doesn’t matter whether…

该句型中的引导的从句是真正的主语，该句型译为“不论（是否）……没关系……

It doesn’t matter whether they are old.

17．It is kind (of sb) to do sth.

该句型中的不定式短语是真正主语，如果不定式的逻辑主语是由of引出，主句中的形容词必须是能表示逻辑主语的形容词。常见的有：bad, brave, careless, clever, cruel, foolish good (好心的),honest, horrible, kind, lazy, modest, naughty, nice (有教养的),polite, rude, silly, stupid ,wise ,wrong等。这个句型可以改写为sb.is kind to do sth.

It is kind of you to stay so =You are kind to say so.

18. It is necessary (for sb) to do sth

该句型与上一句统属一个句型。如果不定式的逻辑主语是由for 引出的，主句的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的形容词。常见的形容词有：

Important,necessary,natural,easy,safe,common,,normal,hard,difficult,dangerous,unusual,grape, impossible, pleasant.等。

It is important for her to come to the party. =It is important that she (should) come to the party.

19. It looks (seems) as if …

该句型中it 无意义。As if 引导一个状语从句，常译为：“看起来好像……”如果与事实不相符合，则用虚拟语气。

It looks as if he is ill. （真的病了）

It looks as if he was ill. （事实上没有生病）

It seemed as if he was dying.

20. We think it important to learn a foreign language.

该句型中的it作形式宾语。为了记忆方便我们可称该句型为“7123结构”

7指主句中的常用的动词：think, believe, make, find, consider, feel, take.

1指的是形式宾语it .

2指的是宾补的两种形式：形容词和名词

3指的是真正宾语的三种形式：不定式短语，动名词短语或that引导的宾语从句。

it的用法 (1)it作无人称代词：it作无人称代词表示自然现象、气候、时间、距离等。it是形式主语没有词汇意义。如： 1)It is very cold today．(气候) 2)It is three o'clock．(时间) 3)It is along way from here．(距离) (2)it作人称代词：it作人称代词时，用来代替上下文中提到的事或物，有时可代替整个句子的内容。 (3)his(was)+形容词十不定式(to do)，it为形式主语，不定式短语为真正主语。 (过去分词) (4)his+{形容词}+that(what，how，whether．．．)，it为形式主语，that引导的为主语从句。 (名词) (5)It+不及物谓语动词+that引导的主语从句。这些动词有：seem，appear，turn out，follow，happen等。 (6)It may well be that引导的主语从句。 (7)it作形式宾语： 1)某些及物动词+it+形容词十不定式； 2)某些及物动词+it+形容词+that... 在上述两种句型中，it是形式宾语，真正的宾语是不定式短语，或that引导的宾语从句。 (8)it用于强调句型： It is(was)十被强调的成分+that(which，who) 强调句型是简单句，可以用来强调句中主语、宾语和状语，但不能强调定语和谓语。在这种句型中把his．．．that去掉，句子仍成立。 代词在句中分析与翻译的实例 1．All the various transitions from one form of motion into another are governed by one ofthe fundamental laws of nature，that of the eternity of matter and its motion． 运动可以由一种形式变为另一种形式，所有运动形式的变换都取决于一个基本的自然规律，即物质及其运动永恒性的规律。(that代替one，one代替law。) 2．The author enumerate some of the factors which make it difficult for the sociologist to conduct experiments in the same way as his colleagues in the physical sciences． 作者列举了某些使社会科学家难以进行实验的因素，而在同样的情况下，他的自然科学的同事们却可以进行实验。(it为形式宾语代替真正宾语to conduct．．．。) 3．The metallurgist has recently found a metal skin for missiles and supersonic planes，one that will retain its strength at the high temperature caused by air friction． 冶金学家最近发明了一种用于导弹和超音速飞机的金属外壳，这种外壳在大气摩擦引起的高温下仍然能保持其强度。(one作同位语，代替skin。) 4．If one can scale down all dimensions to，let us say，one tenth，the average lengths of the current-paths will be reduced to one tenth．And the speed of operation will be scaled up 10 times． 如果人们能把所有尺寸缩小，比如说，减小到原来的1／10，那么电流路径的平均长度也将减小到1／10，操作速度因而就会按比例提高10倍。(one泛指人。) 5．Underground water reserves are much larger than those on the surface，but as they are unseen we tend to understimate them． 地下水的储量要比地面水大得多，但是由于看不到，所以往往低估了地下水的储量。(those代替reserves。as引导原因状语从句。them代替reserves。) 6．Here we find that the term work has been given by science a somewhat more limited meaning than that to which we have been accustomed． 这里我们发现，科学赋予“功”这个词的含义比我们所习惯的“工作”这个词的含义多少要狭窄一些。(第一个that是连词，引导宾语从句。第二个that是代词，代替work。) 7．We know that air can be compressed， and it is reasonable to suppose that the air at the surface of the earth is compressed by the weight of all the air on top of it． 我们知道空气是可以压缩的，因而我们有理由假设：地球表面的空气受到该空气层上部所有空气重量的压缩。(第一个it是形式主语，代替不定式短语to suppose...。句末的it是人称代词，代替“地球表面上的空气”。) 8．It follows from the principle of relativity that Newton’s second law of motion，although fundamental in classical mechanics，only has an approximate and by no means complete validity． 由相对论原理可知，牛顿运动第二定律尽管是古典力学中的基本原理，但只是近似的，而决不是完全正确的。(It follows from．．．that....，“由……可以得出……”。It是形式主语，代替that引出的主语从句。) 9．It was supposed that bodies fall to the ground with a speed which is proportional to their weight。This means that if bodies of 100 pounds and 1 pound are pushed over a cliff，the former falls 100 times as fast as the latter． 曾经有人设想，物体落地的速度与其重量成正比，这就意味着，如果把重100磅的物体和重l磅的物体从悬崖上推下去，前者下落速度是后者的100倍。(the former指bodies of 100 pounds，the latter指bodies of 1 pound。) 10 ．Even though the same computer might have performed the same operation millions of times in succession， it must still be told exactly how to do that operation every time it repeats it． 即使同一台计算机很可能已经连续完成同样的运算达数百万次之多，但每当它重复这一运算时都得准确地告诉它如何去完成这一运算。(句中有三个it,第一和第二个it都代替计算机，第三个it代替operation。might have performed是虚拟语气，表示对过去发生事情的猜测。every time是连词，引导时间状语从句。that在句中不是连词，是指示代词，作operation的定语。)

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美溪区14760992751： it 的8种用法 - ？
召阎克感：[答案] it的用法 (1)it作无人称代词:it作无人称代词表示自然现象、气候、时间、距离等.it是形式主语没有词汇意义.如: 1)It is very cold today.(气候) 2)It is three o'clock.(时间) 3)It is along way from here....

美溪区14760992751： 英语it的用法请帮助总结it的用法,越全越好,而且要求有例句,有用法总结说明.越快越好 - ？
召阎克感：[答案] 英语语法学习笔记——IT的用法 1、人称代词IT IT一般指物不指人,但可指小孩、婴儿和团体等.IT用于成人,有轻蔑的含义. For example: Would you like to marry Malcom? Fancy being owned by that! Fancy seeing it every day! 2、指示代词IT 作为指示...

美溪区14760992751： it的用法有那些? - ？
召阎克感： 1、it的基本用法 (1)用作人称代词,代替前文提到过的事物. The train has arrived. It arrived half an hour ago. (2)用以代替提示代词this, that. —What's this? —It's a knife. —Whose watch is that? —It's mine. (3)起指示代词的作用,指一个...

美溪区14760992751： it的用法,语法的语法语法 - ？
召阎克感： 去百度文库,查看完整内容> 内容来自用户:温凤殿8、it的用法 (一)it作人称代词的用法1. 指事物 作为人称代词,it可以除人以外的一切事物或动物.如:I dropped my watch and it broke.我把手表掉在地上摔坏了.It's hard work, but I enjoy it....

美溪区14760992751： ＂it＂的用法? - ？
召阎克感： IT 的用法 1.做代词,代替刚提到的过的一件事情. a. 可以指一个具体的东西.b. 可以指前面所谈的事情或情况. eg. a. It's a nice room. b.You promised to write the article, and you must do it. 2.做代词代替指示代词 this, that eg. ---What's this? -- ...

美溪区14760992751： it 用法 - ？
召阎克感： it的用法 小结 1、it的基本用法 (1)用作人称代词,代替前文提到过的事物. The train has arrived. It arrived half an hour ago.(2)用以代替提示代词this, that. —What's this? —It's a knife. —Whose watch is that? —It's mine. (3)起指示代词的...

美溪区14760992751： 谁能告诉我it的用法？
召阎克感： 1,it可以用来指除人以外的一切生物和事物,有时也可指不明性别的婴儿或小孩. EG:Start a new file and put this letter in it.建一个新档案,把这封信放进去. What a beautiful baby----is it boy?多漂亮的婴儿,是个男婴吗? 2,it可以用来指心目中或上...

美溪区14760992751： it的用法专项训练 - ？
召阎克感： 1.it is reported that ...2It is a pity that...3. It is likely that... 4.it seems(appears) that.... 5.it is still a problem that.....6.it has been three years since....7.It won't be long before ... 8.It was /is already eight o'clock 9.it is time for sth/ to do sth… 10. we should

美溪区14760992751： it 的用法是什么 - ？
召阎克感： 太多了.你需要找本语法书.It一般是专门一章讲代词用法的.

美溪区14760992751： 请问it的用法有哪些?帮我列出来谢了.看书没看懂 - ？
召阎克感： It 用法小结虽不是高考的热点,但这两年全国各省市试题经常出现.我们不能疏忽. 下面是用法20条. 并通过高考试题进行巩固: 1.It is+被强调部分+that 该句型是强调句型,将被强调的放在前面,其他部分置于之后,强调的主语如果是人,可...