It做形式主语句型整理大全资料

I t做形式主语句型整理大全-CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIANIt作形式主语常见句型动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有：1. It + be + 形容词+主语从句，如：It is uncertain whether he can come to Jenny’s birthday party or not.2. It + be + 名词词组 + 主语从句，这类名词有：a fact, a pity, a shame, an honour，a question等，如：It’s a pity that you missed the exciting football match.It remains a question whether he will come or not.3. It + be + 过去分词 + 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等，如：It is reported that 16 people were killed in the earthquake.It is not decided who will give the operation to the patient.4. It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear, happen, seem等，如：It seemed that he didn’t tell the truth.It happened that I was out when he called.5. It + be + 形容词 + for sb.）+ 动词不定式这类句型常用形容词easy, difficult, hard, important, possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如：It’s necessary for the young to master two foreign language.It is unwise to give the children whatever they want.这类形容词有：easy, difficult, hard, important, possible，wise6. It + be + 形容词 + of sb. + 动词不定式，这类形容词常是表示心理品质,性格特征的形容词，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等。

It作形式主语常见句型动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有：1.It+be+形容词+主语从句，如：It is uncertain whether he can come to Jenny’s birthday party or not.2.It+be+名词词组+主语从句，这类名词有：a fact,a pity,a shame,an honour，a question等，如：It’s a pity that you missed the exciting football match.It remains a question whether he will come or not.3.It+be+过去分词+主语从句，这类过去分词有：announced,believed,expected, hoped,decided,reported,said,shown等，如：It is reported that16people were killed in the earthquake.It is not decided who will give the operation to the patient.4.It+不及物动词(seem,appear,happen等)+主语从句,这类不及物动词有：appear, happen,seem等，如：It seemed that he didn’t tell the truth.It happened that I was out when he called.5.It+be+形容词+for sb.）+动词不定式这类句型常用形容词easy,difficult,hard,important,possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如：It’s necessary for the young to master two foreign language.It is unwise to give the children whatever they want.这类形容词有：easy,difficult,hard,important,possible，wise6.It+be+形容词+of sb.+动词不定式，这类形容词常是表示心理品质,性格特征的形容词，如：kind,nice stupid,clever,foolish,polite,impolite,silly,selfish,considerate等。

It作形式主语常见句型动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有：1. It + be + 形容词+主语从句，如：It is uncertain whether he can come to Jenny’s birthday party or not.2. It + be + 名词词组+ 主语从句，这类名词有：a fact, a pity, a shame, an honour，a question等，如：It’s a pity that you missed the exciting football match.It remains a question whether he will come or not.3. It + be + 过去分词+ 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等，如：It is reported that 16 people were killed in the earthquake.It is not decided who will give the operation to the patient.4. It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear, happen, seem等，如：It seemed that he didn’t tell the truth.It happened that I was out when he called.5. It + be + 形容词+ for sb.）+ 动词不定式这类句型常用形容词easy, difficult, hard, important, possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如：It’s necessary for the young to master two foreign language.It is unwise to give the children whatever they want.这类形容词有：easy, difficult, hard, important, possible，wise6. It + be + 形容词+ of sb. + 动词不定式，这类形容词常是表示心理品质,性格特征的形容词，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等。

it作形式主语的句型
1、It + be + 形容词 + that从句：表示某事物具有某个特征或属性。

例如：It is important that we arrive on time.（我们按时到达很重要。

）
2、It + be + 名词短语 + that从句：表示某个事物符合某个特征或属性。

例如：It is a shame that he didn’t come to the party.（他没来参加聚会真是遗憾。

）
3、It + be + 过去分词 + that从句：表示某个动作已经被完成或已经发生。

例如：It is said that the book will be published next month.（据说这本书将在下个月出版。

）
4、It + be + 现在分词 + that从句：表示某个动作正在进行或正在发生。

例如：It is raining hard outside.（外面正下着大雨。

）
5、It + be + 不定式短语 + that从句：表示某个动作将要发生或被计划。

例如：It is to be announced tomorrow if the meeting will be held as scheduled.（明天将宣布会议是否按计划举行。

）
这些句型中的“it”通常被称为“形式主语”，因为它在句子中充当主语，但实际上并不是真正的主语。

这种用法是为了使句子更加通顺或强调某种特定的信息。

It作形式主语常见句型动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有：1. It + be + 形容词+主语从句，如：It is uncertain whether he can come to Jenny’s birthday party or not.2. It + be + 名词词组+ 主语从句，这类名词有：a fact, a pity, a shame, an honour，a question等，如：It’s a pity that you missed the exciting football match.It remains a question whether he will come or not.3. It + be + 过去分词+ 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等，如：It is reported that 16 people were killed in the earthquake.It is not decided who will give the operation to the patient.4. It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear, happen, seem等，如：It seemed that he didn’t tell the truth.It happened that I was out when he called.5. It + be + 形容词+ for sb.）+ 动词不定式这类句型常用形容词easy, difficult, hard, important, possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如：It’s necessary for the young to master two foreign language.It is unwise to give the children whatever they want.这类形容词有：easy, difficult, hard, important, possible，wise6. It + be + 形容词+ of sb. + 动词不定式，这类形容词常是表示心理品质,性格特征的形容词，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等。

中高考复习专题-it用法总结it常用句型短语1.it作形式主语常用句型。

（1）It is a pity／shame that...真可惜······（2）It is no wonder that...······不足为奇／并不奇怪（3）It seems／appears that...似乎／看来······（4）It looks／seems as if／as though...看起来／似乎／好像······（5）It happens that...碰巧······（6）It occurs to／comes to／strikes／hits sb. that...某人突然想起来······（7）It is said／reported that...据说／据报道··...·（8）It is certain that...肯定······（9）It is well known／acknowledged that...众所周知······（10）It is no use／no good doing sth.做某事没用／没好处（11）It takes sb. some time to do sth.做某事花某人一些时间2.it作形式宾语常用句型。

（1）主语＋think／believe／suppose／consider／feel／make／keep...＋it＋adj.／n.＋for／of＋sb.to do sth.／that从句（2）主语＋think／believe／suppose／consider／feel／make／keep...＋it+useless/no use/no good...doing sth.3．与it相关的其他常用短语和句型。

it作形主的句型It 作形式主语构成的常用句型：1. It is + n. +从句It is a pity/shame that... 遗憾的是……It is a surprise that…令人惊奇的是…It is a fact that……是事实It is common knowledge that……是常识2. It is + adj. +从句It’s certain that…肯定…It is possible that... 很可能……It is unlikely that... 不可能……It is obvious that…很明显…It is necessary \important \natural\... that…3. It +不及物动词+从句It happened that... 碰巧……It (seems/appears) that...似乎.....It occurred to me that…我突然想起…4. It + be +过去分词+从句It is said that... 据说……It is known to all that... 众所周知……It is reported that... 据报道……It is believed that...据信……;人们相信……It is suggested/advised/ordered/requested/insisted/that + (should）do...（虚拟语气）It must be admitted that…必须承认……It cannot be denied that…不可否认……It must be pointe dout that…需指出的是……It is taken granted that…：被视为当然It has been decided that…：大家决定It must be remember that…：务必记住的是5. 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①常用过去时态表示虚拟．②有时也用should + 动词原形，should 不能省，常译为＂是（正是）．．．的时侯．．．＂6. It is the first( second ... )time that sb has/have done sthIt was the first time that sb had done sthIt is the first timeI have been here.= This is the first time I have been here.7. It is .... since ...。

“it”在英语中经常用作形式主语，尤其是在主语从句中。

形式主语用于表示主语从句，即一个句子作为主语，而“it”是这个句子的形式主语。

以下是几个使用“it”作为形式主语的常见句型：
1. It is + 形容词+ that + 主语从句
例如：It is clear that he has made a mistake.
解释：在这个句型中，“it”是形式主语，“that”后的句子是真正的主语。

2. It is + 名词+ that + 主语从句
例如：It is a fact that the earth is round.
解释：这个句型与上一个相似，但形容词被替换为名词。

3. It + 动词+ 主语从句
例如：It happened that he was late for the meeting.
解释：在这个句型中，“it”是形式主语，动词是主语从句的谓语。

4. It + be + 时间/距离+ before + 主语从句
例如：It will be two years before we meet again.
解释：这个句型用于表示在某个时间或距离之后会发生某事。

5. It is/was + 被强调部分+ that + 主语从句
例如：It was yesterday that he met his friend.
解释：这个句型用于强调某个时间或部分。

这些只是使用“it”作为形式主语的一些常见句型。

在英语中，还有其他更复杂或特定的用法。

It作形式主语常见句型动词不定式,动名词或主语从句作主语时，通常把它们放在谓语动词前,而用it作形式主语，放到句首，常见句型有:1. It + be + 形容词+主语从句，如:It is uncertain whether he can come to Jenny’s birthday party or not.2。

It + be + 名词词组+ 主语从句，这类名词有：a fact, a pity, a shame，an honour，a question等,如：It's a pity that you missed the exciting football match.It remains a question whether he will come or not.3。

It + be + 过去分词+ 主语从句，这类过去分词有：announced, believed，expected, hoped, decided, reported，said，shown等, 如:It is reported that 16 people were killed in the earthquake。

It is not decided who will give the operation to the patient。

4. It + 不及物动词(seem，appear，happen等）+ 主语从句，这类不及物动词有：appear，happen，seem等，如：It seemed that he didn’t tell the truth.It happened that I was out when he called。

5. It + be + 形容词+ for sb。

）+ 动词不定式这类句型常用形容词easy, difficult，hard，important，possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb,如:It’s necessary for the young to master two foreign language.It is unwise to give the children whatever they want。

It作形式主语常见句型动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有：1. It + be + 形容词+主语从句，如：It is uncertain whether he can come to Jenny’s birthday party or not.2. It + be + 名词词组+ 主语从句，这类名词有：a fact, a pity, a shame, an honour，a question等，如：It’s a pity that you missed the exciting football match.It remains a question whether he will come or not.3. It + be + 过去分词+ 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等，如：It is reported that 16 people were killed in the earthquake.It is not decided who will give the operation to the patient.4. It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear, happen, seem等，如：It seemed that he didn’t tell the truth.It happened that I was out when he called.5. It + be + 形容词+ for sb.）+ 动词不定式这类句型常用形容词easy, difficult, hard, important, possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如：It’s necessary for the young to master two foreign language.It is unwise to give the children whatever they want.这类形容词有：easy, difficult, hard, important, possible，wise6. It + be + 形容词+ of sb. + 动词不定式，这类形容词常是表示心理品质,性格特征的形容词，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等。

it作形主语的五种IT 作为形式主语的五种情况如下：1. 结构：It + be/have/do + 名词/代词+ 形容词/副词/动词-ing/动词过去分词等形式。

例子：-It is said that he is going to join our team.（据说他将要加入我们的团队。

）-It has been raining since morning.（自从早上就一直下雨。

）2. 结构：It + 动词过去分词+ 名词/代词+ 形容词/副词等形式。

例子：-It seemed like a good idea at the time.（当时看来这是一个好主意。

）-It occurred to me that we had met before.（我想起来我们之前见过面。

）3. 结构：It + 动词-ing + 名词/代词+ 介词+ 宾语等形式。

例子：-It's interesting to learn about different cultures.（了解不同的文化很有趣。

）-It's important to keep the environment clean.（保持环境整洁很重要。

）4. 结构：It + 动词-ing/动词过去分词+ 副词等形式。

例子：-It's been a long time since we last met.（自从我们上次见面已经过去很长时间了。

）-It doesn't matter if he doesn't know.（他不了解没关系。

）5. 结构：It + 动词-ing/动词过去分词+ 宾语等形式。

例子：-It happened that I knew the person involved.（碰巧我知道涉及的那个人。

）-It occurred to me that I hadleft my wallet at home.（我想起来我把钱包忘在家里了。

It作形式主语罕见句型之樊仲川亿创作动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，罕见句型有：1. It + be + 形容词+主语从句，如：It is uncertain whether he can come to Jenny’s birthday party or not.2. It + be + 名词词组 + 主语从句，这类名词有：a fact,a pity, a shame, an honour，a question等，如：It’s a pity that you missed the exciting football match.It remains a question whether he will come or not.3. It + be + 过去分词 + 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等，如：It is reported that 16 people were killed in the earthquake.It is not decided who will give the operation to the patient.4. It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear, happen, seem等，如：It seemed that he didn’t tell the truth.It happened that I was out when he called.5. It + be + 形容词 + for sb.）+ 动词不定式这类句型经常使用形容词easy, difficult, hard, important, possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如：It’s necessary for the young to master two foreign language.It is unwise to give the children whatever they want.这类形容词有：easy, difficult, hard, important, possible，wise6. It + be + 形容词 + of sb. + 动词不定式，这类形容词常是暗示心理品质,性格特征的形容词，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等。

1.It is/was + 被强调局部+ that/who ...该句型是强调句型。

被强调局部可以是主语，宾语，表语或状语。

强调的主语如果是人，that 可以由who 换用。

如果把这种句型构造划掉后，应该是一个完整无缺的句子。

这也是判断强调句型与其它从句的方法。

2. It is not until + 被强调局部+ that ...该句型也是强调句型。

主要用于强凋时间状语，译成汉语“直到……才……〞，可以说是not ... until ... 的强调形式。

It was not until she took off her dark glasses that I realized she was a famous film star.= Not until she took off her dark glasses did I realize she was a famous film star.= I didn't realize she was a famous film star until she took off her dark glasses.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一种构造。

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 ...+(should) do 该句型和上一个同属一个句型。

It作形式主语常见句型动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有：1。

It + be + 形容词+主语从句，如：It is uncertain whether he can come to Jenny’s birthday party or not.2。

It + be + 名词词组+ 主语从句,这类名词有：a fact, a pity，a shame，an honour，a question等，如:It's a pity that you missed the exciting football match.It remains a question whether he will come or not.3。

It + be + 过去分词+ 主语从句，这类过去分词有：announced，believed，expected，hoped, decided, reported，said, shown等，如：It is reported that 16 people were killed in the earthquake.It is not decided who will give the operation to the patient。

4。

It + 不及物动词（seem，appear，happen等) + 主语从句, 这类不及物动词有：appear, happen，seem等，如：It seemed that he didn’t tell the truth。

It happened that I was out when he called.5。

It + be + 形容词+ for sb。

)+ 动词不定式这类句型常用形容词easy, difficult，hard，important, possible,wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如：It’s necessary for the young to master two foreign language。

初中英语“it”作为形式主语考点总结大全（共6页,很好）
1、It’s +形容词/名词+（for sb. / sth）+to do sth
可以用于这类句型的形容词和名词以及例句如下：
2、It’s +形容词+of sb. +to do sth
这个句型是同学们最容易丢分的，大家需要知道在这个句型中，形容词是描述人的品德、特征。

同学们看一下能用于这个句型的形容词和例句：
3、It’s +形容词/名词+doing sth
在这个句型中，常见的形容词和名词有：no /little use, no /much good, useless 等。

例如：
It is no use crying over spilt milk.
It is no good talking about other’s faults.
4、It’s +形容词+that…
能用于这个句型的形容词有：possible, important, impossible, necessary, strange, natural, surprising, obvious, true, likely, unusual等。

除了true, likely, obvious这三个词外，其他的词后面that从句一般要用虚拟语气，（should+动词原形）should可以省略。

大家看下面例句：
5、It’s +名词+that…
在这个句型中，常用的名词有：fact, honor, belief, good thing / news, （no）wonder, no doubt, pity, shame等。

如例句1。