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1、it的语法知识总结的语法知识总结Grammar1Lead in2Grammar 3Practice4Homework Content Lead in Translate the proverbs Its never too late to learn.It never rains but it pours(泼水泼水).It takes three generations to make a gentleman.It is easy to open a shop but hard to keep it always open.十年树木，百年树人。十年树木，百年树人。不鸣则已，一鸣惊人。不鸣则已，
2、一鸣惊人。创业容易守业难。创业容易守业难。活到老，学到老。活到老，学到老。Nomatterwhentobegin,itisimportantnottostopafterthebeginning;nomatterwhattheend,itisimportantnottoregretaftertheend.不管从什么时候开始，重要的是开始以后不要停止；不管在什么时候结束，重要的是结束以后不要后悔。Itisnousedoingwhatyoulike;youhavegottolikewhatyoudo.不能爱哪行才干哪行，要干哪行爱哪行。Lifeisreallysimple,butweinsiston
3、makingitcomplicated.”Confucius生活其实很简单，但我们总是把它复杂化。”孔子Intheend,itsnottheyearsinyourlifethatcount.Itsthelifeinyouryears.AbrahamLincoln到头来，你活了多少岁不算什么，重要的是你是如何度过这些岁月的。亚伯拉罕林肯1234Key pointsKey points 代代词词 形形式式主主宾宾 强强调调句句型型 时时间间句句型型The use of “it”it可用来指代前文提到的人,物或事情,也可以用来指时间,金钱,距离,天气等自然现象一、一、it 做代词做代词:1.it作作
4、人称人称代词代词.指前文提到的人或事物，以避免重复:Shantou is a beautiful city,isnt it?Look at the picture._ is a picture of our school.It-What do you think of the film?-It is one of the best ones that I have seen.指不明性别的婴儿或不明身份人:-Who is knocking at the door?-It must be Bill.What will you call it if it is a boy?-Is this your
5、 wallet?-No,it isnt.2.代替指示代词代替指示代词this/that-Is that jacket yours?-Yes,it is.3.It作非人称代词.指天气：It is a lovely day,isnt it?.指时间:It was nearly midnight when she came back.指环境:It was very quiet in the caf.指距离：It is half an hours walk to the city centre.1.Dongfeng High School is beautiful and I love it.3.Wh
6、ats that?It is a desk.4.It is eight oclock.代替前文出现名词代替指示代词泛指(时间，距离，天气，度量，温度等)2.-Who is knocking at the door?-It might be Tom.总结：作代词代替不明身份的人二、二、it 做引导词做引导词 1.it做形式宾语 2)I think it no use crying over spilt milk.3)I believe it amazing that he made such a mistake.1)I find it easier to say than to do.模仿造句
7、2.我认为像那样说话是很傻的。3.我想上课时记笔记是必要的。1.我觉得和你聊天很好。2)I think it foolish talking like that.3)I believe it necessary that we should take notes in class.1)I find it good to chat with you.代替to do sth./doing sth./that从句6个主句中常用的动词：think,believe,make,find,consider,feel；1 形式宾语it；2 宾补的两种形式：形容词或名词；3 真正宾语的三种形式：it 作形式宾语
8、，记忆方便-“6123结构”。句型：主语+动词+it+adj./n.+(for sb.)to do/doing/that从句不定式短语 动名词短语 that引导的宾语从句 We think it our duty to clean our classroom.I felt it no use arguing with him.They found it difficult that they would finish their work in two days.I consider it very interesting to study English.He made it a rule
9、that we should keep silent in class.Ilike_intheautumnwhentheweatherisclearandbright.A.thisB.thatC.itD.one点拨点拨:这是这是it it作形式宾语的一种特殊用法作形式宾语的一种特殊用法.少数动词少数动词(如如like,like,love,enjoy,dislike,hate,appreciatelove,enjoy,dislike,hate,appreciate等等)或包含介词的动词或包含介词的动词短语短语(如如see to,depend onsee to,depend on等等)后接宾语从句
10、后接宾语从句,必须先由必须先由it it担任担任形式宾语形式宾语,再接从句再接从句.1.I like(enjoy,hate)it when.2.I would appreciate it if3.see to(depend on)it thatSentence patterns:C形式宾语特殊用法形式宾语特殊用法1IhateityoucandancesowellbutIcant.Iwouldappreciateitifyoulendmesomemoney.Ienjoyitwhenwearebathinginthesunshine.Hedecidedonitwherewewouldgothisw
11、eekend.动词+it+to sb.+that oweittosb.that把归功于 leaveittosbthat把留给某人去做 takeitforgrantedthat把想当然 keepitinmindthat把记在心里 他想当然地以为女朋友会再回来。He took it for granted that his girlfriend would come back again.形式宾语特殊用法形式宾语特殊用法2 2.it做形式主语 2）It is no use crying over spilt milk.3）It is amazing that he made such a mist
12、ake.1）It is easier to say than to do.模仿造句 2.嘲笑别人是不好的。3.据说他已经通过了考试。1.学习英语很有意思。代替to do sth./doing sth./that从句 It is no good laughing at others.It is said that he has passed the exam.It is interesting to study English.adj.possible It is/was +necessary+(for sb.)to do sth./从句 important p.p.(过去分词)said It
13、is/was known +that-clause believed n.ones duty It is/was+ones hope +从句/(for sb.)to do sth.an honour 形式主语形式主语1.It is/was the first(second.)time that.It is the first time I have been here.=This is the first time I have been here.2.It happens(seems，appears,comesabout,turnsout,looks)that.It happened tha
14、t he met his teacher in the street.It seems that he will be back in a few days.It was the first time I had been here.3.It takes sb.+时间 to do sth.花某人时间做It took thousands of people many years to build the Great Wall.4.It is no good(use)doing sth.做某事没用 It is no good learning English without speaking En
15、glish.It seemed as if he were dying.6.It looks(seems)as if.好像 It looks as if he is ill.（真的病了）It looks as if he were ill.（没有生病）It doesnt matter if they are old.5.It doesnt matter whether(if).是否没关系 3.强调句(emphatic sentence)结构：It is(was)+被强调部分+that/who+句子其它成分 It was I that/who saw Tom yesterday here It
16、was Tom that/who I saw yesterday here It was yesterday that I saw Tom here It was here that I saw Tom yesterday结论：强调句中，当去掉it is(was).that/who 后，句子仍然完整。I saw Tom yesterday here.It was five oclock _ I got home.It was at five oclock _ I got home.whenthatA that B when notuntil的强调句型 is/was not until+t+其他成分，如直到他摘掉墨镜我才认出他是一个明星。It was not until he took off his dark glasses that I realized he was a famous film star.It was not until she took off her dark glasses that I realized she was a famous film star.
