it的用法-人教版ppt
重点语法讲与练 人教版从高考题谈it句型 的用法
重点语法讲与练人教版从高考题谈it句型的用法重点语法讲与练-人教版从高考题谈it句型的用法攻击“it”句型（发表于<>高二版第27期）第132B单元中有这样一句话：itwassaidthathefoundinmusicthepeacewhichwasmissinginaworldfullofwarsandkilling s.asaresult,itappearedtoscientistsonearththatthestarshadmoved.据说；看来。
有两种非常常见的句型。
在中学英语中，有很多种it/was。
有很多与之相关的句型。
此外，这些句型很容易混淆。
同时，它们也是上一次高考的重点内容。
现将所学句型及相关句型总结如下，并附高考试题供学生学习参考。
1．itis／was＋过去分词＋that从句。
这种句型中常用的过去分词有said、reported、known、think、trusted、suggered 等。
据说（报道…）。
同样，它是形式主语，而该从句是真正的主语。
例如：据报道，这个城市上个月有很多人失业。
itisknownthattaiwanispartofchina．众所周知，台湾是中国的一部分。
考例1：一般认为，教授地理信息科学（nmet2001）a．asartmuchasb．muchanartasc．asanartmuchasd．asmuchanartas考例2:它被称为电灯泡（met1989）a．inventedb．discoveredc．foundd．developed考例3:相信你工作，你会得到结果a．theharder；thebetterb．themorehard；themorebetterc．thehard；abetterd．morehard；morebetter2．it＋动词（look，seem，appear，happen．．．）＋that从句。
意为“似乎／看起来/碰巧……”。
人教版英语九年级Unit 8 It must belong to Carla 语法精美课件(共36张PPT) .ppt
(2)noise名词，意为“嗓音；喧闹声”。 如：Please don’t make noises in class.
He is making such a loud noise that I can’t study here.
(2)anything strange意为“任何异常的”。形容词 strange修饰不定代词anything。单个形容词作定语， 一般放在名词的前面。但如果被修饰词是由some-， any-，every-和no-构成的不定代词时，用作定语的形 容词必须放在它所修饰的不定代词的后面。
friends in the street.
语法重点二
2. When he was interviewed by the town newspaper, he said, “Every night we hear strange noises outside our window.当小镇记者采访他的时候，他说：“每 天晚上我听见窗户外面有奇怪的声音。
语法重点三
3. I can’t remember! I attended a concert yesterday so it might still be in the music hall.我不记得了。昨天我 参加了一场音乐会，所以我可能把它放在音乐厅了 。
take part in/ attend/ join这组词都有“参加，加入” 的意思。
2020年春新人教版七年级英语下册Unit7-It39;s-raining-!-全单元课件
Language Points
How’s the weather? 天气怎么样？ 1. 后可接时间、地点。如： How’s the weather today? 今天天气怎么样？ How’s the weather in Sichuan? 四川天气怎么样? 2. 回答用“It’s + 天气”, 如：
(2) call sb. back 意为“给某人回电话”。 例如：I’ll call you back .
5. Sure , no problem . no problem 常用于表示同意或愉快地答应请求，意为 “没问题；小事一桩”，还可以用来回答感谢，意为 “不 用谢，别客气，没什么”。
Grammar Focus
Mary
How’s it going?
not bad
Eric great
what are you How’r?
1d. Listen again. Write the answers to “What are you doing?” and “ How’s the weather?”.
1b. Listen and write these city names In the boxes above.
Beijing Moscow Toronto Boston Shanghai
1c. Imagine you are in one of the places in 1a. Talk about the weather with your friend on the phone.
--How’s the weather today? --It’s cloudy.
Unit2 What time is it 人教版PEP四年级下册 精品课件 (4)
2. We have __C____ supper in the evening.
A. a B. an C./ D. the 3. —What’s the time?
—___D___ nine twenty-five.
A. Time is B. They are C. It D. It’s
Let’s spell
er /ə:/
Let’s chant
The bird is hurt. Oh no! The bird is hurt. Oh no! Little girl, little girl. Please take the bird to the nurse! The bird is hurt. Oh no!
It’s time to…
4: 35 go home
It’s time to…
9: 00 go to bed
到时间了
It’s time for dinner. It’s time to have dinner.
听句子 拨时针
What do you do?
Q1: What time is it in Beijing? Q2: What time is it in London? Q3: What time is it in Cairo? Q4: What time is it in New York? Q5: What time is it in Brasilia? Q6: What time is it in Sydney?
It’s time to have your breakfast.
What’s the time?
人教版初中英语语法知识学习课件PPT之代词语法学习PPT
are my sister’s.
考点学习
归纳拓展 （1）that/those, one/ones： ①that指代上文提及的单数可数名词或不可数名词；those指代上文提及的 复数可数名词。如：
·The water in the cup is hotter than that in the bottle. ·The values of today’s young people are different from those of their parents.
考点学习
（3）名词性物主代词可以作主语、表语和宾语，其后不能跟名词。名词 性物主代词相当于"形容词性物主代词+名词"。如： —Whose camera is this? Is it yours? —No, it’s not mine. It’s his.[2022天津中考]
考点学习
反身代词 （1）反身代词可以在句中作宾语、同位语。如： ·Be careful! Don’t hurt yourself! ·The matter itself is not serious.
人教版初中英语语法知识学习课件PPT Nhomakorabea代词语法学习
图解语法
考点学习
考点 1 人称代词、物主代词和反身代词
类别 第一人称 第二人称
单数 复数 单数 复数
人称代词 主格 宾格
I me we us you you you you
物主代词
形容词性 名词性
my
mine
our
ours
your
yours
your
himself herself itself themselves
考点学习
2018-2019学年高二英语人教版选修六课件：Unit 4 Section Ⅲ Grammar — it的用法(2)
[点津](1)强调句可以强调主语、宾语和状语，但不能强调谓语， 强调谓语动词要用“do/does/did＋动词原形”。 Do be careful when you cross the street. 过马路时，务必要小心啊！ (2)当被强调部分是人时，可用 that/who，其他情况都用 that。 (3)强调时间、地点、原因时不能用 when, where, why，只能用 that。
It was yesterday that John bought an old bike in a marketplace. 约翰是昨天在市场上买了辆旧自行车。(强调时间状语) It was in a marketplace that John bought an old bike yesterday. 昨天约翰是在市场上买了辆旧自行车。(强调地点状语) It is only when you have your own children that you realize the troubles of parenthood. 只有当你有了自己的孩子，才能真切地了解到为人父母的辛苦。 (强调时间状语从句)
[语法初识]
原句感知
自主探究
①There is no doubt that the earth is
becoming warmer and that it is human
activity that has caused this global
这些句子都是_强_调__句_，
warming rather than a random but
5．强调句型和定语从句的结合 句式特征为： 在强调句型的被强调部分或其他部分中找出一个先 行词，附上修饰该部分的定语从句，这样整个句子结构就变得非 常复杂。应特别注意不要混淆定语从句的关系词和强调句型中的 that/who 部分。 It was playing computer games that cost the boy plenty of time which he ought to have spent on his lessons. 是玩电脑游戏花去了这个孩子大量的应该用在功课上的时间。
人教版初二八年级英语下册 It a nice day,isnt it_ PPT课件
A:It’s a nice day , isn’t it ? B:Yes ,it is . A: Do you like ping pong ? B: Yes , I do . I like it very much . A: Let’s play ping pong after class. Ok? B: That’s a good idea.
2.A: It’s going to rain, isn’t it?
B: …
Conversation example
A. It always rains on the weekend, doesn’t it ?
B. Yes. It rains every Saturday! Do you think it’ll stop by noon?
At the gate of the cinema ,
At the train station
幻灯片 14
The words and phrases you can use : umbrella , look like , forget , …
1. A: It looks like rain, doesn’t it? B: …
The words and phrases you can use :often , usually , be good for , health ,everyday , take a walk …
Please make a successful conversation like
conversation3.
A. I hope so. I want to go swimming. B. Oh? Where do you swim? A.At Franklin Lake. You haven’t been there, have you?…
高中英语人教版精品课件《it作形式主语和宾语的用法》
的用法
it 作形式主语
观察以下句子 1. It is amaing that at my age I am still fit 2.2 It is said that he had 3.3 It is a il
形式主语 it可以放在句中代替 从__句__,不__定__式__短__语__）_
句型结构： It is
done said, reported that 译为 “据说,据报道，据悉……”that 引导的从句是真正 的主语
it 作形式主语
3 It is a pity that he is ill
句型结构：
It is n a e
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＂。
should do sth 该 n（eIEt句scnheigs型oslusiims中lahdrp，ywo等r如动et，lal果词ntt形原hath容形t后a词）t的w是，从eissmh句hpooou中rlut要dldan可用lte,虚以arri拟省ng语h去t气,。
it 作形式主语
2 It is said that he had
it 3 I thin it no use to arguing with him
4 I’d ae some us∧eful information
it
Summary
为了保持句子结构平衡，It在句中代替从 句、不定式和动名词作形式主语或宾语
Homewor:
what you have learnt today
总结：it作形式主语的常见句型 1 It is adj that 2 It is adj important that sb should do sth
Unit10+It's+a+nice+day%2c+isn't+it+？+课件2+(人教版八下)
三、特殊用法(二）
6. Sit down please, _______________ ? will / won’t you 7. Please call me, _________________? will / won’t you 8. Let’s go home, ________________ ? shall / shan’t we
4，feel like
feel like like ----- 是介词 feel like + v.ing ①感觉像…. ， I feel like a flying bird. ② 表示“想要”= want /would like I don’t feel like eating anything. 我不想吃任何东西。
相处 交通 复习；回顾 至少
be careful
当心，小心
1,look through
I have __all my papers but I still can‘t find my notes． A．looked through B．looked for C．looked after D．looked out • Look 构成的词组 Look like--- 看起来像 look the same—看起来一样 Look at– 看 look for– 寻找 look after--- 照看/照顾 Look out – 小心/向外看 look over—检查 Look around/ round/ about----环顾四周 Look up—(在字典，时刻表中）查找
6,祈使句的反意疑问句 Please close the door, won’t you? Don’t close the door, will you? • Let 开头的祈使句 • Let’s go, shall we? • Let us go, will you? 7， 陈述部分是I am..，疑问部分要用 aren‘t I. I’m as tall as your sister，aren‘t I ？
人教版高中英语【选修六】[知识点整理及重点题型梳理] it的用法(1)
![人教版高中英语【选修六】[知识点整理及重点题型梳理] it的用法(1)](https://img.taocdn.com/s3/m/b2447ab3cc22bcd126ff0cef.png)
人教版高中英语选修六知识点梳理重点题型（常考知识点）巩固练习it的用法（1）概念引入小词it是我们学英语之初就学会的，是不是感觉它似乎有点无所不能，经常出现呀？那么我们是不是已经了解了it的用法了呢？本单元和下单元我们就把it的用法做一小结。
先看这些句子，想想it的用法是什么？1. It is a beautiful day here and I am sitting under the big tree at the end of the garden.(表天气)2. It seems amazing that at my age I am still fit enough to cycle 20 kilometres in anafternoon.(代替that从句作主语)3. It’s my birthday in two weeks’ time and I’ll be 82 years old!(表时间)4. Your mother tells me that you started smoking some time ago and now you are finding itdifficult to give it up.(第一个it代替to give it up作宾语；第二个it代替上文中“吸烟”的事) 下面我们就先学习it作为代词和形式主语、形式宾语的用法。
用法讲解代词it1. 作人称代词人称代词it是有实义的，是单数第三人称代词。
主格与宾格相同。
1）指代人以外的一切生物或事物，如前文提到的事物或未指明但谈话双方都知道的那件事；Ningbo is a beautiful city, isn’t it? 宁波是座美丽的城市，是不是？It doesn’t matter. 没关系。
2）替代前文中的this, that；This is your plan? Will you hand it in? 这是你的计划？你要交上去吗？3）指代婴儿、小孩或性别不明的人。
福建省2012高考英语一轮总复习 part2 第13讲 it的用法及强调句型课件 新人教版
(2) ones (3) that (5) that / the one
【结论1】 结论 】 指代上文提过的事物时， 指的是同名同物 指的是同名同物， ① 指代上文提过的事物时 ， it指的是同名同物 ， 相当于the＋名词； 相当于 ＋名词； 指的是同名异物， ②one指的是同名异物，表示单数可数名词相当 指的是同名异物 名词； 等于a 于a ＋名词；a / an＋形容词＋one等于 / an＋形 ＋形容词＋ 等于 ＋ 容词＋名词；复数形式用ones； 容词＋名词；复数形式用 ； 后面常有后置定语， ③ that后面常有后置定语 ， 有特指意义 ， 代替 后面常有后置定语 有特指意义， 不可数名词或单数可数名词， 相当于the＋ 名词； 不可数名词或单数可数名词 ， 相当于 ＋ 名词 ； 复数名词用those，相当于 ④复数名词用 ，相当于the ones。 。
【例句观察】 例句观察】 I consider it no good chatting with strangers through the Internet. 结论2】主语＋ 【结论 】主语＋ think / consider / find / feel ＋it＋ no good / use doing sth. ＋
二、it作形式主语 作形式主语 完成例句】 【完成例句】 根据语境补全句子 (8) It is possible for me to make a tour around the world. 结论】代替由不定式、 【结论 】 代替由不定式 、 动名词或从句所表示的 真正主语。为平衡句子， 真正主语 。为平衡句子 ， 通常把不定式作主语改 作形式主语。 为it 作形式主语。
【例句观察】 例句观察】 It's too quiet in the room. Everyone just keeps silent. 结论2】 可用以指代环境或情况 可用以指代环境或情况。 【结论 】it可用以指代环境或情况。
Unit+7+It's(3a-3c)+Writing+课件2022-2023学年人教版七年级英语下册
审题卡: 体裁
基本人称 基本时态
相关词句
_1_.__记__叙__文________________________
_2_.__第__一__人__称______________________
_3_.__现__在__进__行__时____________________ 4.晴朗又温暖 _s_u_n_n_y__a_n_d__w_a_r_m______ 5.坐下 _s_i_t__d_o_w_n__________________ 6.在树下 _u_n_d_e_r__t_h_e__t_r_e_e__________ 7.拍照 _t_a_k_e__p_h_o_t_o_s_______________ 8.玩游戏 _p_l_a_y__g_a_m_e_s______________ 9.玩得开心 _h_a_v_e_a__g_o_o_d__（__g_r_e_a_t_）___
正文
1.Greeting 打招呼 2. Place地点 3.Weather天气
4.Activities活动 5.Feelings感受
How to tell your friend about your vacation and what you are doing.
Salutation Dear xxx
Let’s predict Look and describe what the people are doing.
/ˈwɪntə(r)/ n. 冬天；冬季
It’s winter. Kate is on vacation in Harbin. How’s the weather? It's snowy and cold. What is the girl doing? She's skating.
人教版高中英语【选修六】[语法讲解 it的用法(2)
人教版高中英语选修六知识点梳理重点题型（常考知识点）巩固练习it的用法（2）概念引入上个单元中，我们已经学习it作代词和形式主语、形式宾语的用法，现在将继续学习it引出强调句的用法及一些与it有关的重点句型。
先看这些句子：1. There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon.2. It was a scientist called Charles Keeling, who made accurate measurement of the amountof carbon dioxide in the atmosphere from 1956 to 1997.3. They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.4. It was during the 20th century that the temperature of the earth went up about one degree Fahrenheit.这些句子都是强调句，中的斜体词部分标识出了句中的强调句结构。
用法讲解it引出的强调句1【it的用法----强调句】强调句的结构：It is / was + 被强调部分（主语，宾语，状语）+ that (who / whom) + 其它部分在强调句型中：1. 被强调部分可以是主语、宾语或状语。
2. 引导词一般用that，如果是人的话，强调主语还可以用who，强调宾语用who和whom皆可。
++Unit8+It+muectionA+1a-1c课件+2023-2024学年人教版英语九年级全册
If a thing is worth doing it is worth worth doing well
1c Practice the conversation in the picture above. Then make conversations using the information in 1b.
John
If a thing is worth doing it is worth worth doing well
It can’t be a wood . It could be a girl . It also might be an old
woman .
推测可能性：must > could > might > can’t If a thing is worth doing it is worth worth doing well
人教新目标Go For It九年级 英语全册
Unit8 It must belong to Carla SectionA 1a-1c
Lead-in
It could betw__o_f_a_c_es______. It also might be
a white vase __（__花__瓶_）__.
7. The red bicycle__c_a_n_’_t __ be Hu’s.She has a blue bicycle.
8.This ticket_c_o_u_ld__/m__ig_h__t be my aunt’s or uncle’s.They’re both going to the concert.
1a Look at the picture. Write the
人教版九年级英语上册课件初中英语语法—代词
③ 请随便吃… help oneself to sth.
④ 自言自语 say to oneself
⑤ 独自
all by oneself/ by oneself
⑥ 为自己
for oneself
⑦ 不要客气 make oneself at home
⑧ 陶醉／沉浸于lose oneself in…
⑨ 自己穿衣服 dress oneself
1. --- Who is knocking at the door? --- I don’t know . I was lying in the bed
and just ask who ____ was. A. he B. she C. it
2. I can’t find my hat . I don’t know where I put ____.
1. -Look, who is coming?-___ must be our English teacher. A. She B. He C. It D. This
2. I found ___ not easy to get on with him.
A. that B. it C. this D. one
The weather in China is quite different from that in USA .
代词，指the weather
1.this和these用于指距离较近的事物或人，that和 those用于指较远的事物或人。如：This picture is
clear and that picture is not clear. 2. that(those)可以代替前面提到的名词，以免重 复，this(these)不能。如：The population of
高二英语Unit20 “It” 用法归纳 新课标 人教版
高二英语Unit20 “It” 用法归纳新课标人教版“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，因此应给予足够的重视。
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(如敲门,打电话时用)；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…… 请参考课本P157二、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. it替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等例 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等例It’s kind of you to help me with the problem.2. 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…It’s (well)worth one’s while doing/to do… It’s (well)worth while doing/ to do例It’s no use crying over spilt milk.3. It替代主语从句的常见句型（1）It is + noun +从句例 It is no secret/surprise that the president wants to have a second term at office.(2) 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。
(新课标)高考英语一轮复习 语法讲解 代词 6.44 it与this,that的用法区别课件 新人教版
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◆ 44 it与this, that的用法区别
it, this和that都是指示代词, 但是它们使用的条 件却有很大的区别, 而且这三个词都有一些固 定的用法，具体区别如下：
1.距离说话人近的人或物用this, 距离说话人远的人或 物用that。
This is an apple tree.(近处)这是一棵苹果树。 That is an orange tree.(远处）那是一棵橙树。
B。我想要告诉你的是:你不应 该根据衣服评判陌生人。指下 面要讲的事物或现象用this, 故 答案为B。that指前面讲过的 事物或现象。
形式主语 真正的主语
It is known to everybody that the earth is round.
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◆ 44 it与this, that的用法区别
It is he that broke the window. (主语) 是他打破了窗子。 It was her that we met at the school gate. (宾语) 我们在校门口遇到的正是她。 It was in the park that Tom lost his watch. (状语) 汤姆是在公园里丢了他的手表的。
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◆ 44 it与this, that的用法区别
2.用于指性别不详、身份不明的人等。 The child smiled when it saw its mother.
3. 指代前面整个句子的内容。 Well, you should read every day. It’s helpful.
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44 it与this, that的用法区别
4. 在回答this或that作主语的疑问句时，要用it代替 this或that。— Is this a book? — Yes, it is.
英语人教版七年级上册it、one、that的用法与区别-
it/one/that的用法和区别
I. it／one ／that三者均可用作代词, 指代前面提到的名词。
一般说来, it指代同名同物; one与that则指代同名异物。
II. one与that虽可用来指代同名异物, 但one为泛指, 相当于a／an＋名
词; that为特指, 相当于the ＋名词。
所以one所指代的名词的修饰语一般为 a ／an ／some ／any; that所指代的名词的修饰语往往是the ／this ／that。
III. one只能代替可数名词单数, 代替可数名词复数时用ones; that既可以代替不可数名词也可以代替可数名词单数, 代替可数名词复数时用 those。
IV. one既可代替事物, 也可代替人, that只能代替事物而不能代替人。
有时可以用the one或the ones代替that或those。
V. one一般有前置修饰语, 有时也可有后置修饰语或不用修饰语。
而 that 不能。
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4. ____. I’ve got so much work I don’t know where to start. A.What an awful! C. That was awful! 5. ___with you? ___ Very well, thank you. A.What is going on B. How is it going C. How is everything going D. What is up B. It’s awful! D. As is awful,
2. If it is possible, hod up the part of the body which is bleeding. (P. 44 SEFC Book 2A) 如果可能的话，就把出血的部位抬起来。 3. I was disappointed with the film ，I had expected _______ to be much better． A．that B．this C．one D．it
It is no use crying over spilt milk. [谚] 牛奶已 泼，哭也无用。
It ＋be＋过去分词＋that从句 It is said, reported, announced, hoped, thought，told，believed，expected， decided，suggested, known + that 从句
该句型通常可以转换成sb/sth is said that … 如：
It is said that the book was translated into many languages in 1950. The book is said to have been translated into many languages in 1950.
二、用来指代人。说明某人的身份或者做某事的人； 指代婴儿或儿童；在不清楚某人性别时，也可使用 it，尤其在问答的形式中更为常见。例如：
1. ---Look, someone is coming. Who can it be? ---It may be the headmaster. ---It can’t be him. He has gone to Shanghai. ---It must be Mr. Zhang. He looks like the headmaster.
It ＋be＋形容词＋ that从句 可用于此句型的形容词还有wonderful， true， good，right，wrong，important ，useless， surprising，clear，unusual，lucky，certain 等。 如： 1）It is quite certain that he will not make a speech at the meeting. 2）It is important that we (should) study hard.
四、在一些相对固定的词组中出现，没有特 殊含义，经常不翻译。如： 1.He’s never really made it as an actor. (Oxford) 作为演员，他从未获得过真正的 成功。 2. It is my turn． 轮到我了。 3. That’s just it---I can’t work when you’re making so much noise. (Oxford) 原因就在这儿---你们这么吵，我没法工作。
5、It ＋be＋名词（词组）＋that从句。 适用该句型的名词（词组）还有a pity，an honor，a good thing，a fact，a surprise， good news等。 如： 1）It is a pity (that) you missed the sports meeting last week. 2）___ is a fact that English is being accepted as an international language. A. There B. This C. That D. It
2. ____Doctor Stone, isn’t it? She’s usually good. A.That is B. It is C. This is D. She is 3. ----Is that Doctor Stone? ----Yeah. ----Who is ___? A. this B. that C. she D. it
It + be + fun/ a waste of time/ no good/ no use doing sth. 1. ___ to jump into a river on a hot summer day! A.How fun it is C. What fun of it is B. What fun it is D. What a fun it is
6. The Parkers bought a new house, ___will need a lot of work before they can move in. A．but that B．but it C．one D．which 7. I love swimming, ____ keeps me fit. A.and it B. which C. it D. as 8. They said they had finished the work, but___. A.I can’t believe it B. what I can’t believe C. which I can’t believe D. I don’t believe
五、指代不定式、动名词、从句等，用作形 式主语或形式宾语。如： 1.___ always difficult to be in a foreign country, especially if you don’t speak the language. A.That is always C. It will be always B. It is always D. That will always be
2007届高三英语专题复习
It的用法ຫໍສະໝຸດ it是常见代词之一，它既可以指代时间、 地点、天气、距离等，还能作形式主语或形 式宾语，同时可以引起强调结构，是历年高 考热点之一。现结合高考试题对其用法作一 介绍。
一、用来表示时间、天气、地点、距离、环 境、形势等。例如： It is two miles to the beach. (Oxford) 这里到 海滨有两英里。 It was raining in the morning. (Oxford) 今天 早晨下着雨。 If it’s convenient I can see you tomorrow. (Oxford) 如果方便，我明天能见你。
It + be + adj./ n. (for sb./of sb ) + to do sth. 1. Is it possible necessary to tell his father everything? 2. In fact it is a hard job for the police to keep order in an important football match. 3. I don’t think it possible to master a foreign language without much memory work. 4. How silly of you it is to have done it!
4. Tom's mother kept telling him that he should work harder, ___ didn't help. A.he B. which C. she D. but it 5. It is said that in Australia there is more land than the government knows ___. A. it what to do with B. how to deal with it C. what to do with it D. to do what with
2. We must make ___ to the public that something should be done to stop pollution. A.What is clear C. It clear B. it is clear D. that clear
3. I hate __ when people talk with their mouths full. A. it B. that C. these D. them
三、用来指代前文中的内容，或指代整个主 句。如： 1. Take your pound of flesh! I declare the court allows it and the law gives it to you. (P. 63 SEFC Book 3A) 割下你要的那一磅肉吧！ 我宣布法庭允许你这么做，法律把那一磅肉 判给你了。
注意： 注意： 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； 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。
用 it 作形式主语或形式宾语的句型主要有: It + be + adj./ n. (for sb./of sb ) + to do sth. It + be + fun/ a waste of time/ no good/ no use doing sth. It ＋be＋过去分词＋that从句 It ＋be＋形容词＋ that从句 5、It ＋be＋名词（词组）＋that从句