It作形式主语常见用法

合集下载

it做形式主语用法大全

it做形式主语用法大全

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做形式主语时的用法

it做形式主语时的用法

it做形式主语时的用法It作为形式主语时,常常用于代替后面真实主语的从句、动名词或不定式,以避免句子结构显得过于复杂或者不平衡。

以下是It 作为形式主语的几种常见用法:1、It + be + 形容词 + that从句:这种句型中的形容词通常是表示性格、品质的形容词,如nice、kind、stupid等。

例如:It is kind of you to help me. 你真好,帮了我。

2、It + be + 名词 + that从句:这种句型中的名词通常是表示时间、距离、度量衡等概念的名词。

例如:It is five years since we last met. 我们上次见面已经五年了。

3、It + be + 介词短语/副词 + that从句:这种句型中的介词短语或副词通常用来描述地点、方式等。

例如:It is in this room that we had the party. 我们就是在这个房间里开派对的。

4、It + be + 动词的过去分词 + that从句:这种句型中的动词过去分词通常是表示完成的动词,如known、heard、seen等。

例如:It is said that he has gone abroad. 据说他已经出国了。

5、It + be + 不定式短语/动名词 + that从句:这种句型中的不定式短语或动名词通常用来描述将来的动作或一般性的情况。

例如:It is to study hard that he will succeed. 他只有努力学习才会成功。

需要注意的是,在It作为形式主语的句子中,真正的主语通常是一个从句或非谓语动词短语,这些从句或短语被放在句子的后面,以保持句子的平衡和流畅。

(完整版)it做形式主语用法大全含练习及问题详解

(完整版)it做形式主语用法大全含练习及问题详解

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做形式主语句型整理大全

It做形式主语句型整理大全

.;.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作为形式主语的十大考点

it作为形式主语的十大考点

it作为形式主语的十大考点今天Mr. Hu向大家总结it作为形式主语的十个比较常考的考点,同学们可以通过所给的例句,记住下面的公式: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。

需要注意的是,在使用pity和shame的时候,从句一般用虚拟语气(should+动词原形),should可以省略。

意思是表示出乎意料“竟然”,如果没有这种意义的时候,就可以不用虚拟语气。

如例句2和3。

It作形式主语常见用法

It作形式主语常见用法

It作形式主语常见句型1.It + be +形容词+ that-从句可用于此句型的形容词有: wonderful, true,good,right,wrong,(un)important,useless,surprising,disturbing,frightening,alarming,clear,unusual,lucky,certain, necessary等。

如:①It is quite certain that he will be at the meeting.他将出席会议是无疑的。

②It is surprising that he came late to school this morning.他今天早上迟到真令人惊讶。

③It is important that we (should) study hard.我们努力学习是很重要的。

注意: 该句型中的形容词是(un)important, necessary等时,从句应为(should )+动词原形。

It is important that we (should) learn English well.It is necessary that he (should) remember these words.2.It + be +名词+ that-从句适用该句型的名词(词组)有: a pity,an honor,a good thing,a fact,a surprise,a question,a shame,a custom, a truth,our hope, no wonder, good/bad manners等。

如:①It is a pity (that) you missed the sports meeting last week. 你错过了上周的运动会太可惜了。

②It is a fact that English is being accepted as an international language. 事实上英语已经被作为一种国际语言而接受了。

“It”作形式主语和形式宾语的用法详解

“It”作形式主语和形式宾语的用法详解

it作形式主语和形式宾语it既可作人称代词,用来表示动物或无生命的物体等,也可以作无人称代词,在句中作主语,表示“时间”、“距离”、“天气”等。

它还可以引导强调句,使语气得以加强。

此外,it在句中能作引导词,充当句子中的形式上的成分,如形式主语、形式宾语等。

㈠it作形式主语:it作形式主语时没有具体的意义,而只是帮助把真正的主语移到句子后部去,使句子显得平稳一些。

it作形式主语时,可以代替三种形式:不定式、动名词和主语从句。

1. it代替不定式短语常用于下列句型中:It + be +形容词+ (for/of sb.) to do sth.It + be + 名词+ to do sth.It takes sb. some time to do sth. 干…花了某人…时间It’s up to sb. to do sth. 干…是某人的职责或义务如:①It is everyone’s duty to obey the law.遵守法律是每个人的义务。

(it作形式主语, 代替不定式短语to obey the law)②It is difficult for a foreigner to learn Chinese.对于一个外国人来说,学习汉语是困难的。

(it作形式主语, 代替不定式短语to learn Chinese)③It is not right to use these places as rubbish dumps.把这些地方用来倒垃圾是不对的。

(it作形式主语, 代替不定式短语to use these places as rubbish dumps)④It took them a year to build the bridge.建这座桥花了他们一年的时间。

(it作形式主语, 代替不定式短语to build the bridge)⑤It is bad manners to stare at people.瞪着眼睛看人是不礼貌的。

it作形式主语或形式宾语的用法

it作形式主语或形式宾语的用法

it作形式主语或形式宾语的用法1. it用作形式主语当不定式、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 a pity to refuse. 拒绝是令人遗憾的。

It’s no use saying any more about it.再谈这事没有用。

It’s not known where she went.她到哪里去了没人知道。

注:It is said / reported / believed / understood that…这类结构中的 it 也是形式主语。

如:It’s reported that two people were injured in the accident. 据报导这次事故中有两人受伤。

2. it用作形式宾语当不定式、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。

如:I find it easy to get on with her. 我发现她很容易相处。

I think it best that you should stay here. 我认为你最好住这儿。

They haven’t made it known where they are to hold the conference. 他们还没宣布会议在哪里开。

几种特殊的形式宾语it1. enjoy, like, dislike, love, hate, prefer, appreciate等动词后接 if 从句或 when 从句,通常应先在动词后接 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 hate it if you say such things in public. 我讨厌你在大庭广众之下说那样的事。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

It作形式主语常见句型
有时为避免句子头重脚轻,常用形式主语it代替主语从句作形式主语放于句首,而把主语从句置于句末。

主语从句后的谓语动词一般用单数形式。

常用句型如下:1. It + be +名词+ that-从句
适用该句型的名词(词组)有: a pity,an honor,a good thing,a fact,a surprise,a question, a shame,a custom, a truth,our hope, no wonder, good/ bad manners等。

如:
It is a pity that you missed the sports meeting last week. 你错过了上周的运动会太可惜了。

It is a fact that English is being accepted as an international language. 事实上英语已经被作为一种国际语言而接受了。

2. It + be +形容词+ that-从句
可用于此句型的形容词有:wonderful, true,good,right,wrong,(un)important,useless,surprising,disturbing,frightening,alarming,clear,unusual,lucky,certain, necessary等。

如:
It is quite certain that he will be at the meeting.
他将出席会议是无疑的。

It is surprising that he came late to school this morning.
他今天早上迟到真令人惊讶。

It is important that we (should) study hard.
我们努力学习是很重要的。

注意:该句型中的形容词是(un)important, necessary等时,从句应为(should )+动词原形。

It is important that we (should) learn English well.
It is necessary that he (should) remember these words.
3. It +seem/appear/happen的适当形式+that从句。

It seems that there is a big waste pipe coming down from the town.
It appeared that he was calm, but inside his heart was beating wildly with fear.
4. It + be + 过去分词+ 主语从句
可用于此句型的过去分词有:announced,believed,expected,hoped,decided,reported,said,shown等。

如:
It is said that he has gone to shanghai. (=He is said to have gone to shanghai)
It is reported that 16 people were killed in the earthquake.
It is suggested that the work (should) be done with great care.
It is known to all that the gun powder was first invented the Chinese.
It is not decided who will give the operation to the patient.
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...”。

It is time that children should go to bed.
= It is time that children went to bed.
6. It is the first (second ... ) time that ...
用完成时态。

至于用什么完成时态,由主句的谓语动词的时态决定。

如果是一般现在时,后面从句用现在完成时态;如果是一般过去时,后面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...”。

It is the first time I have been here.
= This is the first time I have been here.
7. It + be + adj./ n. (for sb. / of sb.) + to do sth.
该句型中的形容词通常是表示事物的特点或特征的如difficult,hard,easy,impossible,necessary,important等,此时用for;或表示人的性格特征或特点的如nice,good,bad,kind,silly,foolish,wise,clever,careless,rude,brave,cruel,careful,grateful等,这时要用of。

如:
It is foolish of you to give up such a good chance.
It is necessary for college students to master at least a foreign language.。

相关文档
最新文档