PEP4 Unit 4 It's warm today

PEP4 Unit4 It’s warm today (教案)

第一课时

一、教学目标：

(一)知识技能

1、能听说认读本课单词warm,cold,coool,hot,weather.

2、学会运营句型：It’s cool in… .

（二）情感文化：

1、了解各地天气，并且要保护环境，保护世界。

2、知道不同的天气穿不同的衣服。

二、教学重点、难点：

1、重点掌握单词warm,cold,coool,hot,weather.

2、我国各地的天气状况是学生的认识难点，单词weather也是难点。

三、课前准备：

1、本课时所需单词卡和相关图片。

2、多媒体课件。

3、教材配套磁带。

4、一杯热水和一杯冷水。

四、教学步骤：

1、warm-up

(1)教师出示一只bird图，问学生：“What’s this?”引导学生回答：“I t’s a bird.”

(2)教师简介：The bird visited many place,now.Let’s see where is it in ?

Harbin,Harbin.It’s in Harbin.

Beijing,Beijing. It’s in Beijing.

Lhasa, Lhasa.It’s in Lhasa.

Hong kong, Hong kong. It’s in Hong kong.

Yushu, Yushu. It’s in Yushu.

Nanchang, Nanchang. It’s in Nanchang.

2、presentation

Class,the last city is Nanchang,Year,we live in Nanchang.It’s hot today.Today we are going to learn Unit 4 It’s warm today.板书并带读：It’s warm today.

1、learn “hot”

出示图片:What’s the weather like in Beijing?Hot,hot.It’s hot.It’s hot in Beijing.

（板书）（小组读，指名读）

2、learn “warm”

教师读三句话，让学生发现天气单词。

Class,I will read sentences,please find out what’s the word about weather ?(指名读，生带读)

It’s warm in Yushu.

It’s warm in Beijing.

It’s warm in Wenchuan.

生：warm,warm,warm,it’s warm.It’s warm in Beijing.

3、learn “cool”

师先喝热水加动作，hot,hot,It’s hot.再喝冷水，cool,cool,It’s cool.(板书并带读)

4、learn “cold”

师出示“Harbin”图，问学生：It’s Lhasa.Is it hot?No,is it warm? No,is it cool? It’s cold.It’s cold in Harbin.(板书并带读)

Practice words (操练单词)

（1）看口型猜单词。

（2）What’s missing ?

（3）做动作猜单词。

（4）学生当小老师带读。

5、learn “weather”

师：Warm,cold,coool,hot,we all call them “weather”.（板书weather:天气）weather,weather.

6、learn “weather report”

(1) 师读一段weather report: Good morning.This is the weather report.It’s cool in Lhasa.It’s warm in Beijing.It’s cold in Harbin.(带读两遍)

（2）学生当天气预报员

（3）听录音（Listen to the tape）

操练句型（practice sentence）(两人合作，一人读城市，另一人读天气，合起来读)

It’s hot. It’s Hong Kong. It’s hot in Hong Kong.

It’s warm. It’s Beijing. It’s warm in Beijing.

It’s cold. It’s Harbin. It’s cold in Harbin.

It’s cool. It’s Lhasa. It’s cool in Lhasa.

It’s warm. It’s Yushu. It’s warm in Yushu.

It’s hot. It’s Nanchang. It’s hot in Nanchang.

7、完成天气预报表格

三、Extension（扩展）

（1）对话引出不同天气穿不同衣服

Boys and girls,different weather,we wear different clothes.

It’s warm. Ican wear my shirt and jeans.

It’s hot. Ican wear my skirt and shorts.

It’s cool. Ican wear my T-shirt and pant.s.

It’s cold. Ican wear my sweater and jeans.

(2)天气引发的自然灾害（出示对比图片），引发学生环保意识，保护地球意识。

Boys and girls,the weather is not only effecting what clothes we wear, but also effecting our environment.Cause many disaster.

齐读口号

it的用法归纳

?Never be afraid of grammar ?Collect some examples; ?Watch them very carefully; ?Find out something in common; ?Try to use the rules ---- practise. it用法完全归纳 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. 工作很辛苦，可是我乐意干。 “Where is the dog?”“It’s in the bedroom. ”“狗在哪?”“在卧室里”。 2.指人 it 指人主要用于指不性别不明的婴儿或用于确认某人的身份。如： Is it a boy or a girl? 是男孩还是女孩? There is a knock on the door. It must be the postman. 有人在敲门，一定是邮递员。 【说明】在答语中，常用来指本人，如说It’s me。

3.代替某些代词 代词it 还可用于代替指示代词this, that 以及复合不定代词something, anything, nothing等。如： “What’s this?”“It’s a new machine. ”“这是什么?”“是一种新机器”。 Nothing is wrong, is it? 没出什么问题，是吗? 二、it 作非人称代词的用法 1.基本用法 it 作非人称代词的用法，主要用于指时间、距离、价值、天气、气候及温度等自然现象。如： It’s too late to go there now. 现在去那儿已经太迟了。 It rained all day yesterday. 昨天下了一天的雨。 It can get very hot here. 这里有时会很热。 2.用于某些句型 It’s time for sth. 该做某事了。 It’s time to do sth. 该做某事的时候了。 It’s time for sb to do sth. 某人该干某事了。 It’s (about / high) time + that-从句. 某人该做某事了。(从句谓语用过去式，有时也用“should+动词原形”) It’s first (second) time + that-从句. 某人第几次干某事。(从句谓语用现在完成时)

高中英语语法：It的完整用法精讲 打印版

高中英语语法：It的完整用法精讲 it可用作人称代词、指示代词、先行词及引导词等。 1. 人称代词it，是第三人称单数中性，代表前文已提到过的一件事物。如： 1）That vase is valuable. It's more than 200 years old. 那个花瓶很珍贵，它有200多年的历史。 2）I love swimming. It keeps me fit. 我喜欢游泳，它能使我保持健康。 当说话者不清楚或无必要知道说话对象的性别时，也可用it来表示。如： 3）It's a lovely baby. Is it a boy or a girl? 宝宝真可爱，是男孩还是女孩？ it可用来指代团体。如： 4）The committee has met and it has rejected the proposal. 委员会已开过会，拒绝了这项建议。 it用以代替指示代词this, that.如： 5）--- What's this? --- It's a pen. —这是什么？—是一支钢笔。 6）--- Whose book is that? --- It's Mike's. —那是谁的书？—是迈克的。 2. 指示代词it，常用以指人。如： 7）Go and see who it is. 去看看是谁。 8）--- Who is making such a noise? —是谁发出这样的吵闹声？ --- It must be the children. —一定是孩子们。 3.虚义it无指代性，常用作没有具体意义的主语，出现于表示天气、气候、温度、时间、地点、距离等意义的句子中。如： 9）It is half past three now. 现在是三点半钟。 10）It is six miles to the nearest hospital from here. 这里离最近的医院也有六英里。 11）It was very cold; it snowed and grew dark. 天气很冷；天下着雪，渐渐地变黑了。 it也常用来表示一般的笼统的情况。如： 12）It's awful—I've got so much work I don't know where to start. 糟透了——我有这么多工作要做我不知从何开始。 13）How is it going with you? 你近况如何？ 14）Take it easy. 不要紧张。 it也常用于下列结构： 15）It looks as if the college is very small. 看起来这个学院很小。 16）It seems as though our plan will be perfect. 似乎我们的计划很完善。 17）It's my turn. 该轮到我了。 it也常用于某些习惯用语中作宾语，各该习惯用语有具体意义，但it并无具体意义。如：cab it 乘车catch it 受责，受罚come it 尽自己分内come it strong 做得过分walk it 步行make it 办成take it out of somebody 拿某人出气 4. 先行词it. it充当形式主语或形式宾语，本身无意义，只起一种先行引导的作用，先行词不重读。后面的真正主语或真正宾语通常是不定式结构、-ing分词结构或名词性从句。 （1）用作形式主语

高中英语语法知识之It的用法总结

高考英语语法知识之It 的用法总结 1．It is + 被强调部分+ that ... 该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，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。 It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father. 2．It was 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 ... 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。 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. 6. It is suggested ( ordered ... ) that ... 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．． 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 ... 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. It is a pity that he is ill. 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．．．＂。 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 / that 替换．常译为＂这是某人第几次做某事了＂。 It is the first time I have been here. = This is the first time I have been here. 10 It is the +形容词最高级+ 名词+ that + ….. 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 / that 替换．常译为＂这是某人做过的最…的事情＂。 This is the best film that I have ever seen . That was the worst song that he had heard . 11. It is .... since ...

语法专题十：it的用法

语法专题十：it的用法 1.指代事物、动物、婴儿或未知的人。 2.指天气、时间、距离、自然现象、环境等。 3.代替不定式，作形式主语或形式宾语(常与feel, consider, find, believe, make, take, imagine, think, suppose, regard等连用)。 4.代替动名词，作形式主语或形式宾语： It is no good / no use / useless / dangerous + doing I think it no good / no use / useless / dangerous + doing I think it no use complaining about their prejudice. 5.代替主语从句、宾语从句，作形式主语或形式宾语： It seems / appears / happens / turns out / proves + that… It is certain / likely / possible / probable + that… We have made it clear that she has nothing to do with the case. 6.用于强调句：It is / was … that / who… A student witnessed the car accident at the turning last night. (1 ) ( 2 ) ( 3 ) ( 4 ) (1) _________________________________________________________. (2) _________________________________________________________. (3) _________________________________________________________. (4) _________________________________________________________. It is not until +被强调的部分+ that… I didn’t realize she was a famous film star until she took off her dark glasses. ________________________________________________________________. 7. 其他重要句型： It is important (necessary, right, strange, natural) that…（should+动词原形） It is said (reported, learned…) that… It is suggested (ordered…) that…（should）+动词原形 It is a pity (a sham) that …（should）+动词原形 It happens (seems, looks, appears ) that... It occurs to sb. to do / that…：使某人想起…… It is/ has been +一段时间+ since ...+过去时 It will be +一段时间+ before ... It looks ( seems ) as if … It is no wonder…：难怪 When it comes to…：当谈到…… It comes about that…：发生 8. appreciate, love, like, hate, see to(负责，注意) + it + 从句 巩固练习： 1. It took us over an hour ______ along the street. A. walk B. to walk C. walking D. walked 2. I think it a great honour ______to visit your country. A. to invite B. inviting C. having invited D. to be invited 3. Many people now make ______a rule to buy cards for their friends before Christmas. A. themselves B. it C. that D. this 4.______is very clear to everyone that he's round and tall like a tree.

it语法解析

★指代（后行）it: 1.It的基本用法是用来指代上文所提到的事物。如： Whatever you do or say, ask yourself whether it is in the interests of the people. A: Pass me a blue pen. B: Here it is / Here you are. 2.it, that, one, the one, ones, the ones 用于指代用法时的区别: （1）it代替上文提及的原物(复数用they)；one指代上文提及的、泛指的可数名词单数（复数ones）；that指代上文提及的定指的可数名词单数或不可数名词（复数those）, the ones 相当于these, those。 There is a river along the village. ______ is a river with a long history. The red pen is on the desk and ______ is Tom's. This pen is mine and ______ is Tom's. This pen is mine and ______ on the desk is Tom's. Mother bought a new bike and gave ________ to me. My mother bought me a new dictionary and her mother will buy her _____ too. Milk with sugar tastes better than ________ without sugar. A pencil with rubber is more useful than ________ without rubber. Bikes made in Shanghai are better than ________ made in Changsha. （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，指一个人或事物。—Who is knocking at the door? —It’s me. （4）指环境情况等。It was very noisy (quiet) at the very moment. （5）指时间、季节等。—What time is it? —It’s eight o’clock. It often rains in summer here. （6）指距离。It is a long way to the school. （7）作形式主语。It is not easy to finish the work in two days. It is no use crying over spilt milk. It is as pity that you didn’t read the book. （8）作形式宾语。I think it no use arguing with him. I found it very interesting to study English. He made it clear that he was not interested in that subject. （9）用于强调结构。 It was Xiaoming whom(that)I met in the street last night. It was in the street that I met Xiaoming last night. It ws last night that I met Xiaoming in the street. It was I who met Xiaoming in the street last night. 2、含有“It is …”的句型 （1）It is time (for sb.) to do sth. It is (high) time that sb. did sth.(虚拟语气) （2）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。（3）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. （4）It is no use/ good + doing sth. It is no use trying again = It is of no use to try again. （5）It is + 被强调部分+ that/who + … Was it in the street that you met her? Who was it that called him“comrade”? It was not until yesterday that I met my old friend. It is in a small factory that my brother is going to work.（注意上述各句均为强调句型的“考点”） 比较：It is a small factory where my brother is going to work.（定语从句） （6）It is said/reported/ann ounced/ (well) known … that… （7）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）

高中语法it的用法

it的用法 一、考点聚焦 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。[来源:学,科,网Z,X,X,K] —What’s this? —It’s a knife. —Whose watch is t hat? —It’s mine. （3）起指示代词的作用，指一个人或事物。 —Who is knocking at the door? —It’s me. （4）指环境情况等。 It was very noisy(quiet) at the very moment. （5）指时间、季节等。 —What time is it? —It’s eight o’clock. It often rains in summer here. （6）指距离。 It is a long way to the school. （7）作形式主语。 It is not easy to finish the work in two days. It is no use crying over spilt milk. It is as pity that you didn’t read the book. （8）作形式宾语。 I think it no use arguing w ith him. I found it very interesting to study English. He made it clear that he was not interested in that subject. （9）用于强调结构。 It was Xiaoming whom(that)I met in the street last night. It was in the street that I met Xiaoming last n ight. It ws last night that I met Xiaoming in the street. It was I who met Xiaoming in the street last night. 2、含有“It is …”的句型 （1）It is time (for sb.) to do sth. It is (high) time that sb. did sth.(虚拟语气) （2）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。 （3）It is + 形容词+ that + sb. + (should) do sth.（虚拟语气）[来源:学科网ZXXK] 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、probab le、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. （4）It is no use/ good + doing sth. It is no use trying again = It is of no use to try again. （5）It is + 被强调部分+ that/who + …[来源:学科网ZXXK][来源:Z+xx+https://www.wendangku.net/doc/449275917.html,] Was it in the street that you met her? Who was it that called him“comrade”? It was not until yesterday that I met my old friend.

初中英语语法：it用作人称代词的用法

初中英语语法：it用作人称代词的用法 it用作人称代词的用法 1. 用于指事物 it用作人称代词最基本的用法就是代替前面已提到过的事物，以 避免重复： This is my watch, it’s a Swiss one. 这是我的手表，它是瑞 士制的。 I cannot find my watch; I must have lost it. 我找不到手表，我一定把它给丢了。 2. 用于指动物或婴儿 除用于指代事物外，还可指动物或性别不详的婴儿： “Where is the cat?” “It’s under the bed.” “ 猫在哪儿?”“在床下。” They got a baby and it was very lovely. 他们生了个孩子， 很可爱。 3. 用于上文提到的情况 He smokes in bed and I don’t like it. 他在床上抽烟，我不 喜欢他这样。 Her mother kept telling her not to go out at night, but it didn’t hel p. 她母亲老叫她晚上不要出去，但是没用。 4. 用于指人 it用于指人主要用确定未知人的身份： “Who is it?” “It’s me.” “是谁啊?”“是我。”

“Listen. Someone is crying.” “Oh, it must be Mary.” “听，有人在哭。”“噢，一定是玛丽。” Someone must have been here. But we have no idea who it was. 一定有人来过，但我们不知道是谁。 5. 指人时与he和she的区别 当it用于指人时，主要用于确定未知的或者是身份不明的人，若 是指已知的或身份明确的人，则应根据情况使用he或she。比较： I hear a knock at the door. It must be the postman. 我听 见有人在敲门，一定是邮递员来了。 Jim is at the door. He wants to see you. 吉姆在门口，他想 见你。 A tall man stood up and shook hands with her. It was the general manager. 一个高个子站起来同她握了手，他是总经理。 The general manager just called. He told us to wait for him at the gate. 总经理刚来过电话，他叫我们在门口等他。 6. 指物时与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?

it的用法及句型总结

It的用法 一、Tell the functions for “it” in each sentence: 1、---What’s the weather together ---It is fine. 2. It is hard to communicate with him. 3. I find it hard to communicate with him. 4. It is Li that who cleaned the classroom. 5. It is a book. 二、It 用法归纳 1，指代it （1）.用作人称代词：指代物、整个句子 （2）用作非人称代词 2，形式it：（1）作形式主语（2）作形式宾语 3，强调it 4，特殊句型 5.在答语中指代this/that： 1).--- Whose book is that ---It’s mine. 三、特别注意： it, one和that作替代词的用法及区别 1. it代替前面提到的同一事物,该事物既可以是可数名词也可以是不可数名词。 (特指，指代单数，指代物，同名同物) Can I borrow your pen—Sorry， I’m using it.

2. one代替前面提到的同类事物中的一个。该事物只能是可数名词,前面可以有冠词,也可以被this、that或形容词修饰,其后也可以有定语。（泛指，指代可数名词，指代人或物，同名异物） I have a bike. Do you have one Eg: (1).I bought a dictionary three years ago and I am still using______ now. (2) I bought a dictionary three years ago but I am going to buy a new _______soon. (3). that代替前面提到的同类事物中特指的一个。该事物既可以是可数名词也可以是不可数名词,必须要有后置定语,但不可以有前置修饰语。（特指，指代单数或不可数，指代物，后面有定语） The coffee produced in Brazil is more famous than __________in Mexico. 四：形式主语、宾语、强调句及其他

第二章 “It”用法及其句型和固定搭配讲解

第二章“It”用法及其句型和固定搭配讲解 "It" 用法及其句型和固定搭配，是高中英语语法的重点、难点，又是近几年高考的热点，因此应给予充分的重视，现将it用法归纳如下： 一、It用作实词 表达以下概念:指代前文提到的事物，前文中的this, that;替代前文中的内容;指代一位性别不明的小孩或未知的人;指代未指明但谈话双方都知道的那件事;指代时间、天气、气候、距离等自然现象…… 二、It用作形式主语 替代作主语的从句、动词不定式、动名词，而把真正作主语的从句、动词不定式、动名词置于句尾。 It 作形式主语的常见句型： 1. 代作主语的动词不定式，其句型为 (1) It be adj. (for sb.) to do sth. 此处adj. 通常为描述事件的形容词：easy, difficult, hard, necessary, unnecessary, possible, impossible, likely, unlikely, right, wrong, important, unimportant, legal, illegal, well-mannered, ill-mannered, polite, impolite, clear, obvious, certain, suitable, proper, fit, useful, useless, dangerous… 例 It is illegal (for a teenager) to drive a car without a license. (2) It be adj. of sb. to do sth. 此处adj. 通常为描述人的形容词：kind, unkind, nice, rude, cruel, considerate, thoughtful, thoughtless, careful, careless, silly, foolish, stupid, clever, wise, crazy. 例 It's kind of you to help me with the problem. (3) It替代作主语的动名词的常见句型 It's no good/use doing… It's (well)worth doing… I t's (well)worth one's while doing/to do… It's (well)worth while doing/ to do

“It”用法及其句型和固定搭配讲解

“It”用法及其句型和固定搭配讲解 “It”用法及其句型和固定搭配,是高中英语语法的重点、难点,又是近几年高考的热点，因此应给予充分的重视,现将it用法归纳如下: 一、It用作实词 表达以下概念：指代前文提到的事物,前文中的thiｓ，thaｔ;替代前文中的内容；指代一位性别不明的小孩或未知的人;指代未指明但谈话双方都知道的那件事；指代时间、天气、气候、距离等自然现象…… 二、It用作形式主语 替代作主语的从句、动词不定式、动名词，而把真正作主语的从句、动词不定式、动名词置于句尾。 It 作形式主语的常见句型： １. 代作主语的动词不定式,其句型为 (１）It bｅadj．(fｏr ｓb.)ｔo dｏｓth． 此处adj. 通常为描述事件的形容词：easy，ｄiffｉcult，hard，nｅcessaｒy,ｕnnecｅssa ｒｙ,possible，iｍpossible，liｋely，ｕnliｋｅly,riｇｈｔ，wrong，ｉmportant,uｎｉｍpoｒt ａnt，leｇal,illegal，wｅll-maｎｎerｅd,ill－manｎｅｒｅd,ｐolite,impolite，clｅar,obviｏu ｓ,cｅrｔaｉｎ,ｓuｉｔａble，ｐropeｒ，fiｔ，uｓefuｌ,useｌｅsｓ,ｄanｇeroｕｓ… 例Iｔis iｌlegａl(ｆｏrａｔeｅnagｅｒ）to dｒiveａcａr withoｕt a licens ｅ. (2）It be adｊ．oｆsb. toｄo sth. 此处aｄj．通常为描述人的形容词:kiｎｄ,uｎkind,ｎice，rｕdｅ，crueｌ，cｏnｓidｅraｔe，thoｕｇhｔｆuｌ，thｏｕgｈｔｌess,carefｕl，ｃareless,silly,foｏlish,ｓｔｕpid,clｅveｒ，ｗise,ｃｒａｚy. 例It＇ｓkiｎdｏf yｏｕto help me wiｔｈｔhe proｂlｅm. （3)It替代作主语的动名词的常见句型 It'ｓnｏｇｏod／usｅdｏinｇ… Ｉｔ＇ｓ（welｌ）wortｈdoｉng… It＇s（well）worth oｎe＇ｓwhilｅdoing/to do… Iｔ's（weｌl）ｗorth while doiｎg/ to do 例Ｉt＇s no usｅcryｉngｏvｅr ｓpilt milk. 2. Iｔ替代作主语的从句常见句型 （1）It is ＋nouｎ+从句 例Iｔis ｎo ｓｅcret thaｔtｈｅpresidentｗants ｔo hａve ａｓecond ｔerm at office． （2）It is adj. +cｌause Ｉt'ｓsｕrprisｉnｇtｈat…(ｓhould）………竟然…… It＇s a piｔy/ｓhame tｈat…(sｈould）………竟然…… 例It＇s importaｎt thａｔyｏu ｓｈoｕld apoｌoｇiｚe tｏher foｒyouｒrudeｎess.(=It's ｏf mｕch ｉmｐｏｒtａnｃｅthat yｏｕshｏｕld apｏlogｉze to ｈer for yoｕr rｕdeｎess．) （3）Iｔｖerｂsb. + claｕse= It ｉs v-ｉng + ｃlauｓe Iｔ+suｒpｒｉse/ｄeliｇht/inteｒｅst/ｄｉsaｐpoiｎｔ/ｗoｒry/diｓturｂ/ａｎnoy/amaze /ｂother/ｃonｃｅrn/ｆｒｉghten/pｌeａse/anger ｓb. ｔhat…

高考语法it用法详解

一. it作人称代词 在特定的环境中，it可指人，如指婴儿、性别不详或身份不明的人。 e.g. 1. The baby stopped crying as soon as it saw the woman.（指婴儿） 2. —Who is it? —It’s me.（性别不详或身份不明） 二. it作形式主语或形式宾语 it可以作形式主语或形式宾语而把真正的主语或宾语后置。 1. 用it作形式主语的情况： (1) It＋系动词＋形容词＋that从句 It is necessary/important/surprising/strange＋that从句，从句中谓语动词常用“should＋动词原形”形式，且should可省略。 (2) It＋系动词＋名词＋that从句 It is a pity/a shame/good news/a fact/an honour/a wonder/no wonder/our duty＋that从句。 e.g. It’s no wonder that you’ve achieved so much success. 难怪你取得了如此大的成功。 (3) It＋不及物动词＋that从句 It seems/happened/turned out /occurs/appears＋that从句。 e.g. It happened that he was out when I called on him. 当我去拜访他的时候，碰巧他出去了。

(4) It＋系动词＋过去分词＋that从句 It is said /reported/ announced/ believed/ thought/ well known/ hoped/ pointed out/ found out/ suggested/ ordered/ advised/ requested/ insisted/ required/ demanded＋that从句。 e.g. It’s said that they have succeeded in carrying out this experiment.据说他成功的进行了这次实验。 【注意】在“It is suggested/advised/ordered/requested/insisted/required/demanded＋that从句”结构中，从句要用虚拟语气，即谓语动词用“should＋动词原形”，should可省略。 e.g. It is suggested that you (should) spend more time in studying English. 建议你花更多时间学习英语。 (5) 其他句型，如It doesn’t matter.../It makes no difference...等。 e.g. It doesn’t matter what you wear, as long as you look neat and tidy.你穿什么不重要，只要看上去整洁就可以。 It makes no difference to me whether you go or not. 你去或不去对我来说都没有区别。 2. it作形式宾语的情况 (1)动词find, feel, think, consider, make, believe等后有宾语补足语时，则需要用it作形式宾语，把作为真正宾语的that从句后置。

(完整版)高中语法：it用法

It 的用法 It 可用作实词（代词）和虚词（助词）。实词it 指用于人称和前指（指刚提到的人或物），用于无人称时，做主语，表示时间，距离，天气等。虚词it 可用作形式主语或形式宾语，也用于构成的强调句型。（一）实词（代词） 1. 用作人称代词 1）指人。例如： Who is it? Is it you, Andrew ? Who is making such a noise ? It must be the children. 2）用作前指，代替前文提到过的人或事物。例如： What a beautiful baby ! Is it a boy ? You have saved my life; I shall never forget it. 3 ）代替指示代词this, that。例如： “What's this ?” “It'sa flag.” 4 ）代替一个双方既知所指的东西 How 'sit going with you ? 2. 用作非人称代词常用作没有具体意义的主语，表示气候，天气，温度，时间，地点，距离等。例如：1）指天气： It 'sdamp and cold. I think it 's going to rain. 2）指时间，季节等： “ what time is it ? ” “It is eight o 'clock. ” I hope it is spring all the year round. 3）指距离 It is five kilometers from the office to my home. 4）指环境，条件等 It was very quiet and peaceful here, It was becoming increasing dangerous. 5）“无人称it ”也用于表达下列2 个结构表达印象和可能性： It seems as if we've known each other for years, （印象） It looks as though I 'm going to fail the test 6）“无人称it ”还用于下列的表达中 as it is事实上So be it但愿如此，好吧That' s it !对，是这样！make it到达，成功（二）虚词（助词） 1. 作形式主语当动词不定式，动名词，或从句做主语时，通常把她们放在谓语后，而用it 做形式主语。例： It is not a good habit to stay up late. （it 表达不定式） It is no use crying over split milk. （it 代表动名词） It'sa waste of time your taking to him （it 表示动名词，动名词前可跟一个动名词） It'sa pity that you didn 'tread the book （it 代表that从句） 2. 作形式宾语 1）当复合宾语中的宾语是不定式，动名词或宾语从句时，往往把宾语放在它的补足语后面， 而用it 作形式宾语。 主语+believe/ consider/count/feel/find/imagine/ think/ make/suppose/take +it+ 宾语补足语（形容词