it的用法在作文中的应用ppt课件.ppt

让it的用法 融入写作,Teaching aims: 1. it作代词时的用法； 2. it作形式主语和形式宾语； 3. 强调句型； 4. it 固定短语和常用句型; 5. it的用法在写作中的应用。,热身一下1. 今天天气寒冷。2. 今天是星期三。3. 教室到操场有3分钟的步行路程。4.我有一本字典，它使我聪明。5 我没有字典，你能借我一本吗？,It is cold today.,Its Wednesday today.,It is a three minutes walk from classroom to the playground.,I have a dictionary. It makes me smart.,I have a dictionary, which makes me smart.,I have no dictionaries. Can you lend me one?,想一想，it 作代词分别指代什么？,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。Whats this? Its a knife.Whose watch is that? Its mine.（3）起指示代词的作用，指一个人或事物。Who is knocking at the door? Its 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? Its eight oclock.（6）指距离。It is a long way to the school.,2. it 作形式主语,To learn English well is important for us. Playing computer games all day long is a waste of time.That we students should be kind to others is necessary.,It is important for us to learn English well.,3. It is necessary that we students should be kind to others.,2. It is a waste of time playing computer games all day long.,To learn English well,Playing computer games all day long,That we students should be kind to others,It is no use /no good /a waste of time doing sth.,It is strange/ important/necessary that(should) do,翻译： 据说他读过这篇小说,Itwassaidthathehadreadthisnovel .,= sb/sth is/was said to do/ have done,1. It + be + 形容词+主语从句，如： It is uncertain whether he can come to Jennys 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： Its 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 didnt 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： Its 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，wise 6. 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。某人和这些形容词可以构成主系表结构。如： Its very kind of you to help me with the work. =You are kind to help me. It seemed selfish of him not to share his dictionary with others. =He seemed selfish not to share his dictionary with others. 7. It + be +名词词组 + 动词不定式，如： It is not a good habit to stay up too late. 8. It + be + 名词或形容词 + 动名词，这类名词和形容词常常是：good, no good, no use, a waste of, useless, senseless等，如： Its a waste of time talking to her any more. It is no use arguing about the matter with him.,3. it 作形式宾语 (think, feel, make, find, believe, consider) + it + adj./ n./ to do/ doing / that,Can you make sentences ?,We think it important to help others. We found it impossible to finish the work in a day.We thought it no good working without a rest.He made it clear that we shouldnt break the school rules.,Eg:,Pay attention！,4. 强调句型,It is/ was +被强调部分that/ who +其他部分,e.g: (1). I saw him on the street last night.,I,It was I that/ who saw him on the street last night.,him,It was him that/ who I saw on the street last night.,on the street,It was on the street that I saw him last night.,last night,It was last night that I saw him on the street.,被强调部分为主语时，“被强调部分”用主格；被强调部分为宾语时，“被强调部分”用宾格。,(2). I didnt recognize him until he took off his dark glasses.,强调句型,It was not until he took his dark glasses that I recognized him.,倒装句,Not until did he take off his dark glasses that I recognized him.,Not until he took off his dark glasses did I recognize him.,Pay attention！,倒装句一般在主句倒装,5. it 固定短语和常用句型,Believe it or not.信不信由你。Dont mention it.不用谢。Make it. 办得到，做成功。Take it easy.别着急，慢慢来；别过于紧张。Its up to you.由你决定 It /That (all) depends. 那要看情况而定。Forget it.算了吧，别在意，没关系。It doesnt matter. 没关系When it comes to 当谈到； 当涉及 Thats it. 对了，正是。,Itis（high）time+(that)主语shoulddo/did+其它。（从句中的谓语动词用的是虚拟语气。）It is the first /secondtime+that从句(必须使用完成时)(这是某人第次做了某事)It takes/took sb. sometime to do sth.做某事花费某人多少时间,Itishightime(that)weshouldgo/wenthome It is the first time that I have visited this city. It was the second time that I had seen her. It takes me an hour to do my homework.,例 The fact that she was foreign made _difficult for her to get a job in that country. (2010辽宁卷) A. so B. much C. that D. it,解析考查it的用法。句意：她是外国人的事实使得她在那个国家很难找到工作。此处要用it作形式宾语，其他词没有这种用法。,D,例 The doctor thought _would be good for you to have a holiday. (2010全国卷) A. this B. that C. one D. it,解析考查it的用法。it的两个重要用法是作形式主语和形式宾语。本题考查形式宾语，it在这里代指后面的真正宾语to have a holiday。,D,例 Ive read another book this week. Well, maybe _ is not how much you read but what you read that counts. (2009浙江卷) A. this B. that C. there D. it,解析it引导的强调句型。还原为： Not how much you read but what you read counts. 句意为：重要的不是你读了多少东西，而是你读了什么。,D,例 It was _ he came back from Africa that year _ he met the girl he would like to marry. (2009江西卷) A. when; then B. not; until C. not until; that D. only; why,解析考查not until 的强调句型。,C,例 It is often _ that human beings are naturally equipped to speak.(2009全国卷) A. said B. to say C. saying D. being said,解析考查句型It is said+that从句,A,When _ comes to computer games, my cousin always gets excited as if he was an ET. A. that B. this C. he D. it,解析when it comes to sth. 是个固定句型，意思为“当谈到某事时”。,D,总 结,作代词,作引导词,我可不仅仅只在高考单选题中露下脸，尝试着把小个子的我应用在书面表达中，定会给你带来惊喜哟！相信我，没错滴,今天是星期三，能在此演讲是我的一大荣幸。我的主题是“高二（5）班，我爱你。” 我的教室在三楼，到操场很方便，大约三分钟的步行路程，所以在业余时间，我们经常去那里锻炼身体。众所周知，一直不停地工作是没好处的。简言之，我爱我的教室。 而且，我也爱我的同学。我们认为助人为乐是很重要的。我们都很勤奋，是每天早上6：20我们在教室读英语或语文，直到晚上10点我们才离开教室。因为我们相信：是努力而不是智力决定成功。 总之，信不信由你，高二（5）班是我校最好的班级之一，让我引以为傲。,今天是星期三，能在此演讲是我的一大荣幸。我的主题是“高二（5）班，我爱你。”,It is Wednesday today. Its my honor to make a speech here. My topic is “ I Love You,Class5,Grade2.”,指时间,形式主语,It is no good/ no use doing sth.,指距离,It is convenient for sb to do,我的教室在三楼，到操场很方便，大约三分钟的步行路程，所以在业余时间，我们经常去那里锻炼身体。众所周知，一直不停地工作是没好处的。简言之，我爱我的教室。,My classroom is on the third floor. It is convenient for us to go to the playground. It is about a 3-minute walk, so we often go there to take exercise in our spare time. As we all know, it is no good working without a rest. In a word, I like my classroom.,形式宾语,而且，我也爱我的同学。我们认为助人为乐是很重要的。我们都很勤奋，是每天早上6：20我们在教室读英语或语文，直到晚上10点我们才离开教室。因为我们相信：是努力而不是聪明决定成功。,Besides, I also like my classmates. We think it important to help others. We are hard-working. It is at 6:20 every morning that we read English or Chinese. And it is not until 10:00 that we leave the classroom. Because we all believe ： It is our efforts, not our intelligence, that determine our success!,强调句中被强调部分,固定结构,总之，信不信由你，高二（5）班是我校最好的班级之一 ，让我引以为傲。,In short, believe it or not, Class5, Grade2 is one of the best classes in our school，and Im proud of it.,高二（5）,Dear teachers and students, It is Wednesday today. Its my honor to make a speech here. My topic is “ I Love You,Class5,Grade2.” My classroom is on the third floor. It is convenient for us to go to the playground. It is about a 3-minute walk, so we often go there to take exercise in our spare time. As we all know, it is no good working without a rest. In a word, I like my classroom. Besides, I also like my classmates. We think it important to help others. We are hard-working. It is at 6:20 every morning that we read English or Chinese. And it is not until 10:00 that we leave the classroom. Because we all believe ：It is our efforts, not our intelligence, that determine our success! In short, believe it or not, Class10, Grade3 is one of the best classes in our school，and Im proud of it. That all. Thank you.,Thank you.,