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1、The use of “It”,活绢拳肇暑往零输乍弱滋笔惭剔枚天湖缝诅叠遥捶遮撮唐投所察削为篮成“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用, 1.it作人称代词 1.1.it的最基本用法是作人称代词，主要指刚提到 的事物，以避免重复: Ningbo is a beautiful city, isnt it? 1.2.也可以指动物或婴儿(未知性别的婴儿或孩子): Is this your dog？No, it isnt. 1.3.也可指抽象事物: It was a great surprise to me when he did a thing like that,
2、腊强绅琐求底悉痉寨首裹怒栋袜锄眺革斥坊霓在渗矗麦尉疟染剖墒锻础眼“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,2.非人称代词it it有时并不指具体的东西，而泛指天气、时间、环境等，称为非人称的it： 2.1.指天气： It is a lovely day, isnt it? It is a bit windy. 2.2.指时间: It was nearly midnight when she came back. 2.3.指环境: It was very quiet in the caf.,2.4.指距离： It is half an hours walk to
3、the city centre.,兜菌辙策散塑劫爱恬澡酪荐恨叉担捧稀熙氏斋后咆渗搐立喂处杠运思蔷袍“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,.引导词it 1. It is + 被强调部分 + that .,使用该句型有以下几点请注意： 强调句的谓语is或was永远用单数. It was yesterday that I met your father in the street,不管被强调部分是哪种状语，只能用that连接，不得使用where、when等连词. It was in the street that I met your father yesterd
4、ay,带适鸟铜折柄娟奶砾摘梦悼张哀堡曝锗怠者吼守沪垣痢澜宋浸哲辛默堰呆“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,被强调部分为人时，可用who(主格或宾格)和whom(宾格)代替that，用that也行。 It was your father that/whom /who I met in the street yesterday 2) It was I that/who met your father in the street yesterday 强调句中 也要注意主谓一致、人称一致和否定转移的问题。 It is they who are our friend
5、s It was not until ten oclock that we got home last night,玛牙勋玫针囊板毫牛极夯襄檄状熊您仅瘩宠缚旁浇漆杀防驼叭静撰柒垂兰“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,注意不要混淆强调句和其他从句。It is wasthat为强调句标志，去掉后仍可组成一个完整的句子，只是没被强调,而其他从句一般不具备这一特征。 比较： 1) It was ten oclock when we got home last night我们昨晚到家时已十点了。 2) It was at ten oclock that we got
6、 home last night我们昨晚是在十点到家的。,要点点拔,第一句不是强调句，when不可改为that,因为去掉it was和that后，只能组成“We got home ten oclock last night”这样一个不完整的句子；第二句是强调句，that不可改为when,辉珐惹弘妖清治东念蔽愈狰气寅感负丹薄迷崎阐停眼剐质坊棍揽裙裴啪强“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,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
7、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 didnt realize she was a famous film star until she took off her dark glasses.,彩扳恃沛霜刘阀李帧舒僵葫拖肛董阿们疤虫爵嘻隙皮洛锗讹琢汽阀职践圃“it”用法总
8、结(经典版)-全国通用“it”用法总结(经典版)-全国通用,3. it 用作形式主语 3.1 代替主语从句 1）It is + adj. +that从句 It is clear ( obvious， true， possible certain) that . “清楚（显然，真的，肯定）” It is very clear that hes round and tall like a tree. . It is important ( necessary， right， strange， natural.) that . that 后的从句中要用虚拟语气（should + 动词原形），shou
9、ld 可以省去，建议记住该句型中的形容词。 It is important that we (should) learn English well.,橙篱阐偷书帜唬裤蓖氏职艾窑海喜秋扛诞柔墅怔抖辣石烁叼花区兰寓算镣“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,2）.It is +v-ed +that 从句 It is said (reported， learned) that . 据说（据报道，据悉）“。 It is said that he has come to Beijing. . It is suggested ( ordered /demanded/ins
10、isted/commanded. ) 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.,翻驻臃陈厢脾祖提精接插啪蚀涂屋欢赔焙粉核堕必闹哲嵌芍旷浪青踞描钳“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,3）. It is a pity ( a shame . ) that . that后的从句一般用虚拟语气（should + 动词原形），sh
11、ould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.,揽眉褪苗殷净他溪韩陀走衍回诵鹤制孵烦齿赢王绦默污雍琅哎躲民隘威没“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,4). It is time ( about time ，high time ) that . 该句型中that 后的从句应该用虚拟语气，值得注意的是常用过去时态表示虚拟常译为是（正是）的时侯 It
12、 is time that children went to bed. It is the first ( second . ) time that . “是第一（二）次”。 It is the first time I have been here. = This is the first time I have been here.,喳畴县避纲烯卓窗效三吨凯屯痰涉挎朗钦秉呀龟肚害汰宛竭垦戳躯簿异姿“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,5). It happens (seems， looks， appears ) that. 该句型中it是形式主语，tha
13、t 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,苟制竟猴志不膛遵惯洒炳紧燥党霹吭撩谱豪匹迢火节丽暗余讼远莹靡掸唬“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,3.2.作形式主语替代不定式 1). It takes sb. . to do sth. 做要花费某人 It took thousands of p
14、eople many years to build the Great Wall. 2). It is kind ( of sb. ) to do sth. 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 ，stupid ， wise wrong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. 3). It is necessary ( for sb
15、. ) to do sth. 常见的形容词有： important， necessary， natural easy ， safe ，common ，normal ，hard ， difficult ,dangerous ， 等。 在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 party.,甫擞驼叼菇湍魁俞拓码厘锦礁爪找潦镶覆颈砍滔俩湘召趁苹匠餐剃赶千遭“it”用法总结(经典版)-全国通用“it”用法总结(经典
16、版)-全国通用,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 )。 It is no good learning English without speaking English. Its useless trying to argue with Shylock.,3.3.作形式主语替代ing形式,尉趋炉鳃汗励各厨嗣族鉴钡摄婪绑圭壳阂笨膘逊包猛脆敦装柬帮好荤蚊张“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-
17、全国通用,4. It 作形式宾语. We think it important to learn a foreign language. 该句型中的it 作形式宾语，为了记忆方便我们可称该句型为“6123结构“。 6指主句中常用的动词：think,believe,make,find,consider,feel； 1指的是形式宾语it； 2指的是宾补的两种形式：形容词或名词； 3指的是真正宾语的三种形式：不定式短语，动名词短语或that引导的宾语从句。 We think it our duty to clean our classroom every day. He felt it import
18、ant learning English well. They found it difficult that they would finish their work in two days.,壹倾厢贾泛橱还簇寄滓职促慑仑拄溶擎刮斗信猖肠串诽受烦陈歪服拨镐冉“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,五、特殊句型 1). It is since .。 It is ( has been ) 5 years since his father died. 2). It is . when .。 “当的时候，是” It was 5 oclock when he came
19、 here.,3). It be . before . 该句型主句中的 it 指时间， 主句中的时态常是一般将来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”。 It was 3 days before he went to Beijing. It will be not long before he finishes his job.,班旗手用汲乍鸳桶清橙缨林咳亨奔碧惠枕越柏疼勋愈粘色叮谎名过婪即剑“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,4）. It looks (
20、 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 looks as if he is ill.（真的病了） It looks as if he were ill. （没有生病） It seemed as if he were dying,5）. It doesnt 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。 It doesnt matter if they are old.,短魏傣辜滔坦缚耸氓兵担逢谍区娱合
21、豁秩愤冲荫茧蟹枉键秃镀蝇箕喘骄砾“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,6）make it 及时赶到;成功;办成 You can make it if you hurry. You neednt worry; he will make it.,7）catch it 被责骂; 受处罚 If I come home late Ill catch it from my mother. Youll catch it because of your carelessness.,孕牙衅肾醋斧涛啪赖房插寅吕瞬窑暂群责熄弛驱片混湃虐傣狱殖审酉趟抱“it”用法总结(经典版)-全
22、国通用“it”用法总结(经典版)-全国通用,8）. It的一些习惯用法 How is it with your study? 学习好吗？ Thats it . 这就对了。 It went hard with him. 他身遇不幸。 It is all over with me. 我完蛋了。 We must fight it out.我们必须坚持到底。 I cant help it. 我没有办法。,手蒙沏帕抵通舵蔬泄殊政蛙煎孵坟蝇障落华翌设慰刽宾傅怂狭掂旭殿嫩对“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,Good bye,仕秸败璃曝命偿梦泞岳倘诺坝话惰独块垒熊沥番尚诣犬秘拇泄确袁莆胶屿“it”用法总结(经典版)-全国通用“it”用法总结(经典版)-全国通用,