grammar it用法

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Grammar,4,It,的用法,1,代词,人称代词,:,相当于指示代词,this, that,用于非人称代词，表示时间、日期、地点、天气、温度、距离、环境等。,2.,引导词,用作形式主语,用作形式宾语,用于强调句式,3.,固定句型和习语中的,it,2,一、代词：, Who is _?,_ is me. Youve helped me a lot; Ill never forget _.,I heard there was still an English- English dictionary in the bookstore. Go and buy _ as soon as possible.,one B. it C. this D. another,-Who broke the window?,- _ is me.,A. This B. That C. It D. Which,it,It,it,代词：代指前文提到的事物；代指距离等。,Its,two miles from the school to our home,3,二、 引导词：,1. It is said that,(known, reported, believed, hoped, thought,，,decided),It is known to us that a very important meeting is being held in our school.,2. It seems / appears / happens that,It appears that every student is polite to teachers.,It happened that Li Lei was not polite that day.,4,3. It is + n. + that ,1) It is a fact that English is being spoken all over the world.,2,）,It is our hope that we can have a long holiday.,4. It is no good / use / a waste of time doing sth. It is to do sth.,It is,no use crying,over spilt milk.,Its,a waste of time reading,novels now.,It is easy,to buy,a new computer now.,形式主语,5,二、引导词,1. it,指代一句话。,I,hate,it,when,people talk with their mouths full.,I,like,it,in the autumn,when,the weather is clear and bright.,Id,appreciate,it,if,you would like to teach me how to use the computer.,2. it,指代不定式,I think,it,my duty,to help,you.,I dont think,it,possible,to master,a foreign language without much memory work.,形式宾语,6,It is/was+,被强调成分,+that+,句子其他部分,强调句型,有时态变化,通常为主语、宾语、表语和状语,被强调部分为人时，可以用,who,去掉,it is that,句子仍然完整,陈述句,一般疑问,特殊疑问,7,我是,在街上,遇见她的父亲的。,2.,正是,因为她病了,，他们才没让她做这项工作。,It was,in the street,that,I met her father.,I met her father in the street.,强调句型的陈述句,It was,b,ecause she was ill,that,they didnt ask her to do the job.,8,强调句型的一般疑问句,It was,by the time he was fourteen,that,Einstein had already taught himself advanced mathematics.,It was,Einstein,that,had already taught himself advanced mathematics.,Was it by the time he was fourteen that Einstein had?,Was it Einstein that had already?,9,强调句型的特殊疑问句,It was,in this way,that,he could finish the work so quickly.,It was,the long low whistle,that,she would hear at night.,What,It was,after being beaten for six times,that,he and his men drove the English out of Scotland.,_ was it that he could finish?,_ was it that she would hear?,_was it that he and his men drove?,How,What,When,10,强调句型的特殊疑问句,Where,did you buy the book?,What,made the little boy so angry?,I dont know what made the little boy so angry.,Where was it that you bought the book?,What was it that made the little boy so angry?,I dont know what it was that made the little boy so angry.,宾语从句中的强调句型,难点：,I did,not,go to bed,until midnight,.,It was,not until midnight,that I went to bed.,11,2.,It,is no good smoking.,3.,It,is likely that he will succeed.,真正主语,真正主语,形式主语,形式主语,真正主语,形式主语,= _ is bad.,To smoke,= _ is no good.,Smoking,= _is likely.,That he will succeed,1.,It,is bad to smoke.,Complete the sentence.,PRACTICE,12,1.,努力学习英语很必要。,It is necessary to work hard on English.,对于我们来说，努力学习英语很必要。,It is necessary _us to,work hard on English.,for,2.,你把真相说出来了，真诚实。,It is honest _you to tell me the truth.,of,To work hard on English,is necessary,for,us,.,You are honest,to tell me the truth.,13,1.,It was in this way that he could finish the work so quickly.,2.,It is I that is completely right.,3.,It was after being beaten for six times that he and his men drove the English out of Scotland.,4.,It is then that the new type of camera was developed.,5.,It were my classmates that helped me whenever I was in trouble.,6.,It was this hotel that we stayed last night.,Judge,am,was,was,at,14,1. It was not until she got home_ Jennifer realized she had lost her keys. (2006,全国,II,）,A. when B. that C. where D. before,2. It was after he got what he had desired _ he realized it was not so important.(2006,辽宁）,A. that B. when C. since D. as,3. It _ we had stayed together for a couple of weeks _ I found we had a lot in common.(07),was until; when B. was until; that,C. wasnt until when D. wasnt until; that,B,A,D,15,4. -Where did you get to know her?,-It was on the farm _ we worked.(07,山东）,A. that B. there C. which D. where,5. I dont know _ it was _ prevented him from attending the meeting?,the reason/ B. whybecause,C. whatthat D. why/,D,C,16,6. His parents always warned him not to play games for a long time, but,didnt help at all.,A. what B. which C. it D. as,7. _is no good quarrelling with your parents.,It will only hurt one anothers feeling.,A. It B. There,C. ThisD. That,8. _makes no difference whether you attend the party or not. My task is to tell you when it will be held.,A. As B. It C. This D. One,C,A,B,17,9. The manager didnt make,clear at the last meeting when and where the project would be carried out.,A. this B. that C. these,D. it,10. I think,an honour to work with a group of scientists who have worked to improve food safety for so many years.,A. it B. that C. one,D. there,D,A,18,一些固定句型,1),It,is,段时间,since. 2) It will be,段时间,before 3) It is/was,点时间,when 4) It is the first time that have/has done,What was the party like,？,Wonderful,！,Its been years _I enjoyed myself so much,2. It will be 3 years _we meet again.3. It will be midnight _they get there .,A. after B. when C. before D. since,D,C,B,19,1. It is,（,high,）,time that we _ to school.A. go B. went C. have been D. have gone,2. It is the second time that we _ to Beijing.A. go B. went C. have been D. have gone,It + is +(high / about/really) time + that,从句,It / This / That +is +the first (second , third ) time + that,从句,一些固定句型,20,用于某些习语,make it,及时赶到；成功；办成,e.g. You can make it if you hurry.,You neednt worry; he will make it .,如果你赶快还可以及时赶到。,你不必担心，他会办到的。,21,catch it,被责骂；受处罚,e.g. If I come home late Ill catch it from my mother.,Youll catch it because of your carelessness.,如果我回家晚了，我妈妈会骂我。,你会因为你的不小心受处罚的。,22,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。,23,It,is never too old to learn.,活到老，学到老。,It,is easier to fall than to rise.,摔倒容易爬起来难。,It,is no use crying over spilt,（溢出的）,milk.,覆水难收。,It,never rains but it pours(,泼水,).,不鸣则已，一鸣惊人。,It,is easy to open a shop but hard to keep it always open.,创业容易守业难。,It,takes three generations,（代）,to make a gentleman.,十年树木，百年树人。,Proverbs with “It”,24,