it做形式主语的19个句型教学提纲
it作为形式主语的十大考点

it作为形式主语的十大考点大家都知道,动名词、不定式或者名词性从句作主语的时候,经常用it作形式主语,而把这类真正的主语放在句末。
It作形式主语是中考英语的一个重要考点,是每年中考必考的语法点。
也是我们初中阶段学习的一个难点。
但是,所谓的难,也是因为我们掌握的不够系统,英语的学习,由于细小的语言点比较多,这就需要我们在学习的过程中不断的总结和归纳。
今天就个大家总结了it作为形式主语的十个比较常考的考点,希望对大家的学习有所帮助,更希望能分享给更多需要的朋友。
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。
“It”作形式主语和形式宾语的用法详解讲课稿

新希望英语语法精讲------“It”作形式主语和形式宾语“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用法,是英语学习的主要语法项目之一。
无论是单项选择,还是完行填空,it 用法始终是反复考查的重、热点之一。
现将it在特殊句型中作形式主语和形式宾语用法,进行如下归纳分析,以供学习参考。
一、It 用作形式主语当不定式(短语)、动名词(短语)或从句在某个句子中作主语时,为保持句子结构前后平衡,避免头重脚轻,因此常用it作形式主语置于句首,而将真正的主语放在句尾。
此时it只起先行引导作用,本身无词义。
e.g. It is wrong to tell a lie. (说谎是错误的。
) 〔It为to tell a lie的形式主语〕It is no use arguing about it. (争吵是没用的。
) 〔It为arguing about it的形式主语〕It is uncertain who will come. (谁要来还不确定。
) 〔It为who will come的形式主语〕It 作形式主语的常见句型:①It + be + 形容词+ to do sth. / doing / that ….e.g. It is very important to learn a foreign language. (学一门外语非常重要。
)It is useless crying over the spilt milk. (覆水难收。
)It was really surprising that she married a man like that.(她嫁给那样的男士真让人惊讶。
)②It + be +名词词组+ doing / that ….e.g. It is no good telling lies. (撒谎没好处。
)It is a pity that you didn’t go to see the film yesterday. (你昨天没看成那部电影真遗憾。
it作形式主语的句型

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做形式主语的19个句型

1.It is/was + 被强调部分+ that/who ...该句型是强调句型。
被强调部分可以是主语,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它从句的方法。
2. It is not until + 被强调部分+ 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 ...+(should) do 该句型和上一个同属一个句型。
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做形式主语句型整理大全

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。
最新it做形式主语的19个句型演示教学

It作形式主语常见句型1.It is/was + 被强调部分+ that/who ...该句型是强调句型。
被强调部分可以是主语,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它从句的方法。
2. It is not until + 被强调部分+ 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 ...+(should) do该句型和上一个同属一个句型。
it为形式主语的句型

it为形式主语的句型好吧,今天咱们聊聊“it” 这个小家伙,它可真是个灵活的角色,尤其在英语里。
你有没有注意到,很多时候我们说的东西其实就是在用“it”来引导,嘿,听起来是不是挺神奇的?比如说,“It’s amazing how time flies.” 这句其实是在说,时间过得飞快,难道不是吗?生活就像一场马拉松,有时候你会感觉自己跑得飞快,有时候又像是慢吞吞的乌龟,嘿,这就是人生的味道。
再说说天气吧,大家都喜欢聊天气,这也算是“it”登场的好时机。
“It’s raining cats and dogs” 这句话一出来,大家都知道外面下大雨了,完全不用担心。
天气变化无常,今天还是阳光明媚,明天可能就乌云密布,真是让人摸不着头脑。
不过嘛,大家也乐在其中,毕竟没有谁能预测明天的天气,简直就像在抽彩票一样,刺激又好玩。
还有那种“it”后面跟着形容词的句子,比如“It's important to stay positive.” 这句你听着可简单了,但其实蕴含了很多道理,保持积极的心态就像在逆风飞翔,虽然会有点辛苦,但那种飞翔的感觉,真是太爽了!生活中的小麻烦,像是一只只小虫子,咬咬你、烦烦你,但如果你能保持乐观,那简直就是在给这些虫子下最后通牒,嘿,别惹我,我可是有超级能力的!再说说学习,大家常说“it takes time to learn a language.” 是啊,学语言就像攀登高山,起初可能觉得步履维艰,但慢慢的,你会发现山顶的风景简直美得让人窒息!就像这段时间我在学做饭,起初弄得一团糟,连水饺都包不好,哈哈!但是渐渐地,竟然能做出一两道拿得出手的菜,心里那个美呀,简直能飘到天上去!说到做饭,不得不提“it’s fun to try new recipes.” 试着做一些新菜谱,真的是一场冒险!有时候会惊喜,有时候会崩溃。
想象一下,食材在锅里翻滚,香味四溢,结果一不小心,盐倒多了,哎,整碗汤咸得跟海水似的,但不管怎么样,做饭就是乐趣无穷的过程,每次做出新花样,心里都像开了一朵花。
- 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、"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、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)。
i t做形式主语的19个句型It作形式主语常见句型1.It is/was + 被强调部分 + that/who ...该句型是强调句型。
被强调部分可以是主语,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它从句的方法。
2. It is not until + 被强调部分 + 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 ...+(should) do该句型和上一个同属一个句型。
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。
5. It is said (reported, learned…) that …该句型中的it 仍是形式主语,真正主语是 that 引导的主语从句。
该结构常译为“ 据说(据报道,据悉……)”。
6. It is suggested ( ordered, required ... ) that ... +(should) do该句型和上一个同属一个句型。
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),should 可以省。
常译为“ 据建议;有命令……)”。
7. It is a pity ( a shame ... ) that ...该句型中,that 后的从句一般用虚拟语气(should + 动词原形),should 可省去.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……”。
9. It is the first ( second … ) time that …该句型要和上一个句型区别开来。
该句型中的 that 从句不用虚拟语气,而用完成时态。
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.10. It is … since ...该句型主要用作处理瞬间动词的完成时,又要和表示一段时间的时间状语连用的问题。
主句中是时间作表语,其时态是现在时或完成时,since 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。
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……”。
12. It be ... before ...该句型主句中的 it 指时间, 主句中的时态常是将来一般时或过去时两种时态.主句中的表语多是long, not long , 3 days , 2 weeks 等表示时间段的词或短语。
常译为“……之后……”。
13. It happens (seems, looks, appears ) that...该句型中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……14. It takes sb. … to do sth.该句型中的不定式是真正的主语,it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……”。
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 )。
16. It doesn't matter whether ( if ) ...该句型中whether (if) 引导的从句是真正主语,该句型常译为“不论(是否)…… 没关系……。
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 引起,主句中的形容词必须是能表示逻辑主语特征的形容词。
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 (错误的)等。
这个句型可以改写为:sb. is kind to do sth.It is kind of you to say so. = You are kind to say so.18. It is necessary ( for sb. ) to do sth.该句型与上一个同属一个句型。
如果不定式的逻辑主语是由for 引起,主句中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:① important, necessary, natural② easy, safe, common, normal, hard, difficult, dangerous, unusual, rare, impossible, pleasant 等。
在①中的形容词作表语可以用从句改写,如:It is important for her to come to the party.= It is important that she (should ) come to the party19. 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,“看起来好象…… "如果与事实不相符合,则用虚拟语气.It作形式主语常见句型(二)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。