1Itis被强调部分thatit句型.doc

1.   It is+被强调部分+that该句型是强调句型，将被强调的放在前面，其他部分置于之后，(强调的主语如果是人，可以用who来替换that) 如果把这种句型结构划掉后，应该是一个完整无缺的句子，这也是判断强调句型与其他从句的方法It was they that /who cleaned the classroom yesterday.2. It is not until +被强调的部分+ that该句型译成汉语“直到……才”It was not until she took off her dark glasses that I realized she was a film star.3. It is clear (obvious, true, possible, certain) that….该句型中it是形式主语，真正的主语是that引导的主语从句，常译为“清楚（显然、真的、肯定）”是主语从句最常见的结构It is very clear that he’s round and tall like a tree.4. It is important (necessary, right, strange, natural…) that…该句型和上一句同属一个句型。

由于主句中的形容词不同，that后的从句中要用虚拟语气（should+动词原形）should 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.It is necessary that he (should) remember these words.5. It is said (reported, learned, believed …) that…该句型中的it 仍是形式主语，真正的主语是that 引导的主语从句该结构常译为“据说（据报道，据悉……）It is said that he has come to Beijing.It is reported that another earth satellite has been put into orbit.6. It is suggested (ordered…) that…该句型和上一句属一个句型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）可以省略，常译为“据建议；有命令……”It is suggested that the meeting (should) be put off.It was ordered that we (should) arrive there in two hours.7. It is a pity (a shame…) that …在该句型中，that后的从句一般用虚拟语气（should+动词原形），should可以省去，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.这种事竟然发生在你们班上，真是遗憾It is a pity that he is ill.他生病了，真遗憾！8. 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，有时也用should+动词原形，should 不能省常译为“是（正是）……的时候……”It is time that children should go to bed.=It is time that children went to bed.9. It is the first ( second, …)time that…该句型应和上一个句型区别开来该句型中不用虚拟语气，而用完成时态至于用哪种完成时态，由主句的谓语动词的时态来决定如果是一般现在时，从句用现在完成时态；如果是一般过去时，从句则用过去完成时态该结构中that可以省去；it有时用this替换，常译为“是第一（二,…）次…”。

10. It happens (seems, looks, appears) that…该句型中的it 是形式主语，that 引导的是主语从句，主句中的happen, seem等词是不及物动词It happened that he met his teacher in the street. (碰巧……)It seems that he will be back in a few days. (看来……)11. It takes sb …to do sth.该句型中的不定式是真正的主语，是形式主语，句型中的直接宾语是时间常译为“做……要花费某人……”It took thousands of people many years to build the Great Wall.12．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.13. It doesn’t matter whether…该句型中的引导的从句是真正的主语，该句型译为“不论（是否）……没关系……It doesn’t matter whether they are old.14．It is kind (of sb) to do sth.该句型中的不定式短语是真正主语，如果不定式的逻辑主语是由of引出，主句中的形容词必须是能表示逻辑主语的形容词。

常见的有：bad, brave, careless, clever, cruel, foolish good (好心的),honest, horrible, kind, lazy, modest, naughty, nice (有教养的),polite, rude, silly, 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 stay so =You are kind to say so.15. It is necessary (for sb) to do sth该句型与上一句统属一个句型如果不定式的逻辑主语是由for 引出的，主句的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的形容词常见的形容词有：Important,necessary,natural,easy,safe,common,,normal,hard,difficult,dang erous,unusual,grape, impossible, pleasant.等It is important for her to come to the party. =It is important that she (should) come to the party.19. It looks (seems) as if …该句型中it 无意义。

as if 引导一个状语从句，常译为：“看起来好像……”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 was ill. （事实上没有生病）20. We think it important to learn a foreign language.(it为形式宾语)主句中的常用的动词：think, believe, make, find, consider, feel, take.We think it our duty to clean our classroom every day.Xiao Li felt it important learning English well.1. I like ________ in the autumn when the water is clear and bright.　　A. this B. that C. it  D. one　　2. —Do you like ________ here?　　—Oh, yes. The air, the weather, the way of life. Everything is so nice.　　A. this B. these C. that D. it　　3. The Foreign Minister said, “________ our hope that the two sides will work towards peace.”　　A. This is   B. There is    C. That is   D. It is　　这三道高考题均考查it的用法,答案分别为C,D,D。

it的用法一直是高考命题的热点,同时也是学习中的重点与难点现就it的常考点和特殊用法作以归纳　　一、it作代词的用法　　1. 代替前面或后面的名词或分句等所表示的事物　　Though we can not see it, there is air all around us. (it指代air)　　They said they had finished the work, but I can’t believe it. (it指代前一个分句)　　2. 代替有生命但不能或不必分阴阳性的东西(包括婴儿)　　When a baby is crying, it may be hungry. (it指代baby)　　3. 在口语中代替只闻其声但不见其人的人　　—Who is it?　　—It’s me.　　[考例]　　1) Tom’s mother kept telling him that he should work harder, but ________ didn’t help.　　A. he B. which C. she D. it (Key: D)　　2) The Parkers bought a new house but ________ will need a lot of work before they can move in.　　A. they B. it C. one D. which (Key: B)　　二、it作形式主语的用法　　1. It is easy to do the job. (it指代to do the job)　　2. It is no good going there. (it指代going there)　　3. It’s said that she came from London. (it指代that从句)　　[考例]　　1) Is ________ necessary to complete the design before National Day?　　A. this B. that C. it D. he (Key: C)　　2) ________is a fact that English is being accepted as an international language.　。