高二英语It的用法公开课.ppt

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,*,*,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,*,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,*,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,*,单击此处编辑母版文本样式,第二级,*,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,*,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,*,单击此处编辑母版标题样式,1.,很明显,，这项,工作很适合,Tom,。,2.,据报道，几天前清远下雪了。,3.,正是这个学者和我们交流了他的想法。,4.,我们都承认今天很冷。,5.,我认为在公共场合犯这样一个错误是令人尴尬的。,It,is evident that the,job,is appropriate,for Tom,.,It,is reported that,it,snowed in Qing,yuan,several days ago.,It,was the scholar that,/who exchanged,his ideas with us.,We all admit that,it,is very cold today.,I think,it,embarrassing,to make such a mistake in public.,Grammar,The use of“it”,（,1,）,it,做形式主语和宾语,强调句,含有,it,的句型,上文提到,的事物,表示时间，天气，距离,，环境等,指动物、婴儿和未确定身份的人,It is+adj.+that,It is+adj.+(of/for sb.,）,to do sth.,It+be+-ed+that,It+be+n.+that,It is/was+,被强调部分,+that+,其他,eg,.It is(high)time that.,指代,sb.thinkit+n./adj.to do/that clause,01,02,03,04,代替上文提到的人和物,指代婴儿、小孩或不知性别的人,用 it替代 this/that,泛指（天气，距离，时间，,季节,等）,Who is the boy?It is my son.,Pass me your pen.Here it is.,The baby is crying.It might be hungry.,Someone is ringing.Who might it be?,What is this?It is a book.,It is getting colder and colder.,It is a long way to Beijing.,考考你,What is“it”used to talk about?,一,、指代,It,作形式主语，作真正主语的是,_,_,_,It is no good,eating too much,before sleeping at night.,It is obvious,that he is addicted to playing mobile games,.,It is necessary,to appeal to,more people to participate in the activity.,to do,doing,a clause,二、,It,作形式主语,it,做形式主语,It is+adj.+that,It is+adj.+(of/for sb.,）,to do sth.,It+be+-ed+that,It+be+n.+that,二、,It,作形式主语,1.It is+adj.+that,可用于此句型的形容词有：,_,等。,It is obvious that he is addicted to (playing)computer games.,很明显，他对电脑游戏上瘾了。,important,necessary,surprising,possible,obvious,2.It is+adj.+(of/for sb.,）,to do sth.,形容词表示,事物的特点,时，如：,difficult,important,easy,impossible,necessary,hard,等，用,for.,你收养这个无家可归的孩子，真是太好了！,戒烟对他来说是很难的。,It is very hard for him,to quit smoking,.,It is kind of you,to adopt the homeless child,.,形容词表,人的性格特征,时，如：,nice,good,kind,rude,brave,careful,等，用,of,。,3.It+be+-ed+that,适用于该句型的过去分词有：,（,1,）,said,reported,hoped,thought,believed,predicted,等。,It is hoped,that you can make great progress in the coming final exam.,希望你们能在即将到来的期末考试中取得巨大进步。,It is said,that he succeeded in passing the interview,.,3.It+be+-ed+that,(2),适用于,该句型的过去分词有,：,It is required,that every participant,（,should,）,arrive at the lecture hall on time.,建议你不要冒险逗弄那只小狗。,It is suggested,that you(should)not risk teasing the dog.,ordered/demanded/insisted/.,4.It+be+n.+that,适用于该句型的名词有：,It is a pity that you missed the sports meeting last week.,It is an honor,that I was appointed as librarian in our school.,我被任命为我们学校的图书馆馆长，这是一种荣幸,。,a pity,an honor,a surprise,ones duty,等。,5.It is+n.+doing sth.,no,good,no use,a,waste of,time.,适用于该句型,的名词有：,It is no use complaining once you lose the chance.,一旦你失去这次机会，抱怨是没有用的。,Practice,1.Is,_ necessary to complete the design before New Years Day,？,2._ is no good,_,(talk)without doing anything,.,3.,Does _ matter if he cant finish the job on time,?,4.I was disappointed with the film.I had expected _ to be much better.,5._is a fact that English is being accepted as an,international language.,6._ is reported in the newspaper,talks between the two countries are making progress.,It is reported in the newspaper that talks.,it,It,talking,it,it,It,As,形式宾语,2)I think it no use crying over spilt milk.,3)I have made it clear that students are banned from bringing cellphones to school.,1)I find it easier to say than to do.,it,作形式宾语，真正的宾语是,_,_,_.,that,clause,to,do,doing,主语+think+it+_或_+_,_,_,.,consider,find,make,believe,.,n,.,adj.,that-clause,v-ing,to do sth,.,I think it best,that you should do more exercise,.,He found it difficult,to accustom himself to getting up early,.,She thought it no use,arguing with the man,.,We made it a rule,that the office should be cleaned by turns.,.,Practice,1.We make _ a rule that you must be quiet when you enter the classroom at 6:15 p.m.,2.I think it necessary _(have)a better understanding of the use of it.,3.Finally he found it a waste of time _(play),computer games for a long time at weekend.,4.,I would,appreciate _if,you could take my,application,into consideration.,it,to have,playing,it,1.,我认为积极参加小组活动是我的责任。,I think it my duty to take an active part in the group activity,.,2.,这个化学家发现用这个方法解决这个问题是没有用的。,The chemist found it no use solving the problem in this way.,3.,我相信你在学期末实现目标是可能的。,I believe it possible that you can achieve your goal at the end of the term.,今天是十二月二十一号,。正是在一个月后我们将举行,期末考试。我们都认为取得好成绩对我们来说是很重要的，因为我们都想过一个开心的寒假。据说我们将,迎来最,长的寒假，这个消息使每个人都很激动。希望每个人都,能取得,更大的进步,。,Group Work,Today,it is December 21st.It is in a month that we will take the final exam.We all think it important for us to get good marks,because all of us want to enjoy a happy winter vacation.It is said that we will have the longest winter vacation,which makes everyone excited.It is hoped that everybody can make greater progress.,I,Mary,in the street,yesterday,It was I that,/who,met Mary,i,n the street yesterday.,It was,Mary,that I,met,i,n the street yesterday.,It was,i,n the street that I,met Mary,yesterday,.,It was yesterday that I,met Mary,i,n the street.,强调句,结构：,It is/was+,被强调部分,+that/who+,句子其他成分,I,met,Mary,in the street,yesterday.,1.,被强调的部分不能为谓语动词,.3.,强调的部分是人 也可用,who,其它一律用,that.,He didnt realize the importance of health until he fell ill.,直到生病了，他才意识到健康的重要性。,It was not until he fell ill that he realized,the importance of,health.,Not until he fell ill did he realize,the importance of health.,Inversion,It is not until that,直到考试不及格，,Tom,才下定决心努力学习。（强调句）,It was _that,_.,not until he failed in the,exam,Tom made up his mind to study hard,1.It was yesterday _ Mr.Peng encouraged us to make good preparations for the final exam.,2.It was because he paid little attention to his English study _ he didnt get a good mark in the mid-term exam.,3.It was Wang,Ruowei,_ set a good example for us in study.,4.,It was playing computer,games,_,cost,the boy plenty of,time_ he,ought to have spent doing his lessons,.,that/who,that,that,that,when,Its difficult to give up smoking.,2.Most people believe that smoking causes cancer.,3.Trying to make him give up smoking is no use.,1.Giving up smoking is difficult.,It is believed that smoking causes cancer.,It is no use trying to make him give up smoking.,Rewrite the sentence by using,“,it,”,口诀：,代词,it,本意它,既可指这又指那,;,时间天气均可指,谈到距离也用它,;,假主假宾均可做,强调句型跟,that,。,Summary,