第一篇：It 句型小結(jié)

It 句型小結(jié)

1.It is/was + 被強(qiáng)調(diào)部份 + who/ that + 句子的其它成份 2.It be/become + adj./n.+(for sb.)+ to do…/ that…

3.It took/was/will take/will be + 一段時(shí)間 + before… 過(guò)多久才（就）…, …之后才…

此句型中謂語(yǔ)動(dòng)詞多用過(guò)去時(shí)和將來(lái)時(shí).4.It is time + for sth./ to do sth./ that … 該是…的時(shí)候了。

后接that從句時(shí)謂語(yǔ)動(dòng)詞常用過(guò)去式或should+動(dòng)詞原形

5.It is the first/second…time(that)… 第一/二次…

由于time前有序數(shù)詞修飾，從句謂語(yǔ)動(dòng)詞常用完成時(shí)態(tài)，且和主句時(shí)態(tài)保持一致。

6.It looks/seems as if … 看起來(lái)好像…

7.It is said/reported/thought/considered/believed/announced/expected… + to do…/that…

據(jù)說(shuō)/據(jù)報(bào)道/據(jù)認(rèn)為/據(jù)相信/據(jù)宣布/據(jù)期望…

8.It takes(sb.)some time to do sth.做某事花費(fèi)多少時(shí)間 9.It is no use/good + doing sth.做某事是沒(méi)用/好處

10.It seems/looks/appears/happens + that … 似乎/看起來(lái)/好像/碰巧

11.think/make/believe/find/feel/consider+ it + adj./n.+ to do/doing/that-clause

There be句型的小結(jié)

1.There used/seem/ happen/appear to be 2.There is no sense in doing 做某事是沒(méi)有用的，沒(méi)有意義的 3.There is no use /good doing 做某事是沒(méi)有用的，沒(méi)有必要的 4.There is no need to do 沒(méi)有必要做某事

5.There is thought/said/reported to be 人們認(rèn)為有/據(jù)說(shuō)有/據(jù)報(bào)道有 6.There is no doing（口語(yǔ)）不可能…….

第二篇：It句型小結(jié)

1.It is + 被強(qiáng)調(diào)部分 + that...該句型是強(qiáng)調(diào)句型。將被強(qiáng)調(diào)的部分放在前面，其它部分置于that之后。被強(qiáng)調(diào)部分可以是主語(yǔ)，賓語(yǔ)，表語(yǔ)或狀語(yǔ)。強(qiáng)調(diào)的主語(yǔ)假如是人，that可以由who換用。假如把這種句型結(jié)構(gòu)劃掉后，應(yīng)該是一個(gè)完整無(wú)缺的句子。這也是判定強(qiáng)調(diào)句型與其它從句的方法。It was about 600 years ago that the first clock with a face and an hour hand was made.It was they that(who)cleaned the classroom yesterday.It was in the street that I met her father.2.It is not until + 被強(qiáng)調(diào)部分 + that...該句型也是強(qiáng)調(diào)句型。主要用于強(qiáng)凋時(shí)間狀語(yǔ)，譯成漢語(yǔ)＂直到．．．才．．．＂，可以說(shuō)是 not...until...的強(qiáng)調(diào)形式。

It was not until she took off her dark glasses that I realized she was a famous film star.= Not until she took off her dark glasses did I realize she was a famous film star.= I didn’t realize she was a famous film star until she took off her dark glasses.3.It is clear(obvious, true, possible, certain....)that.....該句型中it 是形式主語(yǔ)，真正的主語(yǔ)是that 引導(dǎo)的主語(yǔ)從句，常譯為＂清楚（顯然，真的，肯定．．．）＂ 是主語(yǔ)從句最常見(jiàn)的一種結(jié)構(gòu)。It is very clear that he’s round and tall like a tree.= That he’s round and tall like a tree is very clear.4.It is important(necessary, right, strange, natural...)that...該句型和上一個(gè)同屬一個(gè)句型。由于主句中的形容詞不同，that 后的從句中要用虛擬語(yǔ)氣（should + 動(dòng)詞原形），should 可以省去。建議記住該句型中的形容詞。It is important that we(should)learn English well.It is necessary that he(should)remember these words.5.It is said(reported, learned....)that...該句型中的it 仍是形式主語(yǔ)，真正主語(yǔ)是that 引導(dǎo)的主語(yǔ)從句。該結(jié)構(gòu)常譯為＂據(jù)說(shuō)（據(jù)報(bào)道，據(jù)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...該句型和上一個(gè)同屬一個(gè)句型。主句中的過(guò)去分詞是表示請(qǐng)求，建議，命令等詞時(shí)，that 后的從句要用虛擬語(yǔ)氣（should + 動(dòng)詞原形），should 可以省。常譯為＂據(jù)建議；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...該句型中，that后的從句一般用虛擬語(yǔ)氣（should + 動(dòng)詞原形），should可省去．表示出乎意料，常譯為＂竟然＂。沒(méi)有這種意義時(shí)，則不用虛擬語(yǔ)氣。It is a pity that such a thing(should)happen in your class.這種事竟然發(fā)生在你們班上，真是遺憾！

It is a pity that he is ill.他生病了，真遺憾！

8.It is time(about time ,high time)that...該句型中that 后的從句應(yīng)該用虛擬語(yǔ)氣，值得注重的是① 常用過(guò)去時(shí)態(tài)表示虛擬．② 有時(shí)也用should + 動(dòng)詞原形，should 不能省。常譯為＂是（正是）．．．的時(shí)侯．．．＂。

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...該句型要和上一個(gè)句型區(qū)別開(kāi)來(lái)。該句型中的 that 從句不用虛擬語(yǔ)氣，而用完成時(shí)態(tài)。至于用什么完成時(shí)態(tài)，由主句的謂語(yǔ)動(dòng)詞的時(shí)態(tài)決定。假如是一般現(xiàn)在時(shí)，后面從句用現(xiàn)在完成時(shí)態(tài)；假如是一般過(guò)去時(shí)，后面從句則用過(guò)去完成時(shí)態(tài)。該結(jié)構(gòu)中 that 可以省去；it有時(shí)用 this 替換．常譯為＂是第一

（二）．．．次．．．＂。It is the first time I have been here.= This is the first time I have been here.10.It is....since...該句型主要用作處理瞬間動(dòng)詞的完成時(shí)，又要和表示一段時(shí)間的時(shí)間狀語(yǔ)連用的問(wèn)題。主句中是時(shí)間作表語(yǔ)，其時(shí)態(tài)是現(xiàn)在時(shí)或完成時(shí)，since 引導(dǎo)的從句通常是一般過(guò)去時(shí)態(tài)，而且是瞬間動(dòng)詞。假如主句是一般過(guò)去時(shí)，從句則用過(guò)去完成時(shí)。It is(has been)5 years since his father died.11.It is...when...該句型中的 when 引導(dǎo)的是一個(gè)時(shí)間狀語(yǔ)從句，主句中的 it 指時(shí)間，表語(yǔ)由具體的時(shí)間充當(dāng)。常譯為＂當(dāng)．．．的時(shí)候，是．．．＂。

It was 5 o’clock when he came here.12.It be...before...該句型主句中的 it 指時(shí)間, 主句中的時(shí)態(tài)常是將來(lái)一般時(shí)或過(guò)去時(shí)兩種時(shí)態(tài)．主句中的表語(yǔ)多是long, not long , 3 days , 2 weeks 等表示時(shí)間段的詞或短語(yǔ)。常譯為＂．．．之后．．．＂。

It was 3 days before he went to Beijing.It will be not long before he finishes his job.13.It happens(seems, looks, appears)that...該句型中it是形式主語(yǔ)，that 引導(dǎo)的是主語(yǔ)從句，主句中的happen , seem等詞是不及物動(dòng)詞．

It happened(so happened)that he met his teacher in the street.碰巧．．

It seems that he will be back in a few days.看來(lái)．．．

14.It takes sb....to do sth.該句型中的不定式是真正的主語(yǔ)，it是形式主語(yǔ)，句型中的直接賓語(yǔ)是時(shí)間。常譯為＂做．．．要花費(fèi)某人．．．＂。

It took thousands of people many years to build the Great Wall.15.It is no good(use)doing sth.該句型中的真正主語(yǔ)是動(dòng)名詞短語(yǔ)，主句中的表語(yǔ)可以是no good ,(not any good), no use ,(not any use)。

It is no good learning English without speaking English.16.It doesn’t matter whether(if)...該句型中whether(if)引導(dǎo)的從句是真正主語(yǔ)，該句型常譯為 ＂不論（是否）．．．沒(méi)關(guān)系．．．。

It doesn’t matter if they are old.17.It is kind(of sb.)to do sth.該句型中的不定式短語(yǔ)是真正主語(yǔ)，假如不定式的邏輯主語(yǔ)是由 of引起，主句中的形容詞必須是能表示邏輯主語(yǔ)特征的形容詞。常見(jiàn)的有： bad , brave , careless, clever , cruel , foolish , good（好心的）, honest , horrible , kind , lazy , modest , naughty , nice（有教養(yǎng)的）, polite, rude , silly , stupid , wise , wrong（錯(cuò)誤的）等。這個(gè)句型可以改寫(xiě)為：sb.is kind to do sth.It is kind of you to say so.= You are kind to say so.18.It is necessary(for sb.)to do sth.該句型與上一個(gè)同屬一個(gè)句型。假如不定式的邏輯主語(yǔ)是由for引起，主句中的形容詞通常是表示重要性，緊迫性，頻繁程度，難易，安全等情況的形容詞。常見(jiàn)的形容詞有：① important, necessary, natural ② easy , safe , common , normal , hard , difficult , dangerous , unusual, rare , impossible , pleasant等。

在①中的形容詞作表語(yǔ)可以用從句改寫(xiě)，如：

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...該句型中it無(wú)意義。as if 引導(dǎo)一個(gè)狀語(yǔ)從句。常譯為，＂看起來(lái)好象．．．＂假如與事實(shí)不相符合，則用虛擬語(yǔ)氣．

It looks as if he is ill.（真的病了）

It looks as if he were ill.（沒(méi)有生?。?/p>

It seemed as if he were dying.20.We think it important to learn a foreign language.該句型中的it 作形式賓語(yǔ)。常用的動(dòng)詞：think, believe, make, find, consider, feel；

We think it our duty to clean our classroom every day.He felt it important learning English well.They found it difficult that they would finish their work in two days.

第三篇：admit句型小結(jié)

admit句型小結(jié)

1.admit doing sth 承認(rèn)做某事。如：

I admit breaking the window.我承認(rèn)打破了窗玻璃。

He admitted having stolen the money.他承認(rèn)偷了這筆錢(qián)。

2.admit of 容許有，有……的余地，有……的可能。如：

The matter admits of no delay.此事刻不容緩。

The word admits of no other meaning in the case.該詞在此例中不可能有其它的意義。

3.admit to 承認(rèn)。如：

He admitted to the murder.他供認(rèn)了謀殺罪。

He admitted to having taken the money.他承認(rèn)拿了那筆錢(qián)。

注：由于 admit 表示“承認(rèn)”可用作及物動(dòng)詞或不及物動(dòng)詞，所以上面各例中的介詞 to 有時(shí)也可省略(省略 to 后 admit 為及物動(dòng)詞)。

4.admit…to(into)允許進(jìn)入，使能進(jìn)入。如：

They admitted him to [into] their organization.他們接受他參加了他們的組織。

How many students have been admitted into the school this year? 今年這所學(xué)校有多少學(xué)生入學(xué)?

試比較(注意介詞不同)：

He was admitted to(into)the Party.他被吸收入黨。

He was admitted as a Party member.他被接納為黨員。

第四篇：There be句型的小結(jié)

There be句型的小結(jié)

There be表示 “存在有”,即當(dāng)我們告訴某人某事存在(或不存在)常用這種結(jié)構(gòu)。其中there是引導(dǎo)詞,本身無(wú)詞義;be為謂語(yǔ)動(dòng)詞,后面跟的是名詞,也就是主語(yǔ),也就是說(shuō)there be結(jié)構(gòu)的運(yùn)用也就是倒樁的具體運(yùn)用。其真正的主語(yǔ)在there be 之后。在新課標(biāo)中對(duì)此的考試要求是：掌握There be句式的結(jié)構(gòu)特征和基本用法。在我們的課本中也出現(xiàn)了大量的There be句式如：

There are a few simple safe measures to follow while training.There are also records of gymnastics being performed in China and some other Asian countries.There were lots of good English language programs broadcast on TV or on the radio in China.一、注意事項(xiàng)： there be 結(jié)構(gòu)中的be 是可以運(yùn)用各種時(shí)態(tài)的。

There is going to be a meeting tonight.。

There was a knock at the door.There has been a girl waiting for you.There will be rain soon.2動(dòng)詞be單復(fù)數(shù)形式要跟there be之后的真正的主語(yǔ)一致。并且要根據(jù)就近一致原則來(lái)變換be 的單復(fù)數(shù)形式。

如： There is a book on the desk.How many people are there in the city? There is a pen and two books on the desk.There are two books and a pen on the desk.3 在there be引起的句子結(jié)構(gòu)中，用來(lái)修飾主語(yǔ)的不定式主動(dòng)形式和被動(dòng)形式均可。

There is no time to lose(= to be lost).時(shí)間緊迫

There is nothing to see(=to be seen).看不見(jiàn)有什么 There is nothing to do.(=to be done)無(wú)事可做。

二、結(jié)構(gòu)變形：

在there be 結(jié)構(gòu)中還可把be 改變從而使得there be結(jié)構(gòu)有了一些改變具體總結(jié)如下：There used/seem/ happen/appear to be 如：

There might be snow at night.There appeared to be nobody willing to help.There used to be a building here.There happened to be a man walking by.There doesn't seem to be much hope.在there be的 be 前還可以加上各種情態(tài)詞，如：

There must be something wrong.一定有問(wèn)題。

There ought not to be so many people.不應(yīng)該有這么多的人。

There might still be hope.可能還有點(diǎn)希望。在there be句型中的be還可以換成其他的動(dòng)詞與there連用，這些詞都是表示狀態(tài)的如：live stand exist remain等或用來(lái)描寫(xiě)某事的發(fā)生或某人的到達(dá)如come, appear, enter, follow, occur等。

There lived a rich man.Then there came a knock at the door.Long, long ago, there lived a king.There followed a terrible noise.Suddenly there entered a strange man.三、特殊的表達(dá)方式：１There is no sense in doing 做某事是沒(méi)有用的，沒(méi)有意義的

There is no sense in making him angry

There in no sense in going alone.4 There is no use /good doing 做某事是沒(méi)有用的，沒(méi)有必要的

There is no use trying to explain it.There is no good/use going there.5 There is no need to do

There is no need to worry.There is no need to give him so much money.6 There is thought/said/reported to be 人們認(rèn)為有/據(jù)說(shuō)有/據(jù)報(bào)道有

There is thought to be an army between in these two countries。

There is reported to be a better way to cure cancer.7 There is no doing（口語(yǔ)）不可能…….There is no telling when he will be back.無(wú)法知道他什么時(shí)候回來(lái)。

There is no knowing what he is doing.無(wú)法知道他在做什么。

四、there be句式的非限定形式。

There be 的非限定形式有兩種，即there to be 和there being。需要掌握以下幾個(gè)情況：

1作主語(yǔ)

當(dāng)作主語(yǔ)時(shí)，一般是There being結(jié)構(gòu)，當(dāng)句式中有for時(shí)，一般用there to be如：

There being a shop here is a great advantage.It is impossible for there to be any more.There being a house with a garden is of great value.2 作賓語(yǔ)

作動(dòng)詞賓語(yǔ)時(shí)，一般用there to be 結(jié)構(gòu)。常見(jiàn)動(dòng)詞有：expect, mean, intend want, prefer等：

We expect there to be no argument.People don't want there to be anther war.作介詞的賓語(yǔ)一般用There being句式，但當(dāng)是for時(shí)一般用there to be句式。

This depended on there being a sudden change.這需要有一個(gè)突然的改變。

The teacher was waiting for there to be complete silence.3 作狀語(yǔ)

用作狀語(yǔ)的there be的形式通常用there being結(jié)構(gòu)。

There being no buses, we had to walk home.There being no nobody in the room, we realized that there was no use crying.There being nothing else to do, we went home happily.注意：如果句中出現(xiàn)for時(shí)應(yīng)用there to be。

It was too late for there to be any buses.There be句型的多種形式及用法 1．There be與情態(tài)動(dòng)詞連用

There be句型中的謂語(yǔ)動(dòng)詞be可與各種情態(tài)動(dòng)詞連用，表示“一定有”、“可能有”、“應(yīng)該有”等含義。如：There oughtn’t to be too great discrepancy in our views．

He felt that there must be something wrong．

There can’t have been much traffic so late at night．

There might be drinks if you wait a bit． 2．There be與含有情態(tài)意義的動(dòng)詞或短語(yǔ)連用

英語(yǔ)中有些動(dòng)詞或短語(yǔ)具有一定的情態(tài)含義，我們稱之為半助動(dòng)詞。There be句型中的謂語(yǔ)動(dòng)詞be 可與這些半助動(dòng)詞連用，表達(dá)更為復(fù)雜的意念。能用于There be句型中的這類詞語(yǔ)主要有：happen to（碰巧），appear ／seem to（似乎），be going to（將會(huì)），used to（曾經(jīng)），have to（必須），be likely to（很可能），be bound to（必定）等。例如：

There happened to be an old friend of mine in the club．

There appear to be several reasons for changing our plans． There used to be a cinema here before the war．

Is there going to be a dancing party tonight？

There are bound to be obstacles for us to get over．

3．There be的非限定形式及用法

There be結(jié)構(gòu)也可以以不定式（there to be）、動(dòng)名詞（there being）和現(xiàn)在分詞（there being）的形式出現(xiàn)在句子中，作主語(yǔ)、賓語(yǔ)或狀語(yǔ)。這種非限定形式中的there在形式上起著邏輯主語(yǔ)的作用，因此，不定式there to be前有時(shí)需加介詞for，從形式上滿足引出不定式邏輯主語(yǔ)的需要，而分詞there being則具有獨(dú)立主格結(jié)構(gòu)的意味。例如：

I don’t want there to be any more trouble．（不定式作賓語(yǔ)）

I expect there to be no argument about this．（不定式作賓語(yǔ)）

It was unusual for there to be so few people in the street．（不定式作主語(yǔ)）

What’s the chance of there being an election this year？（動(dòng)名詞作介詞賓語(yǔ)）

There being a bus stop so near the house is a great advantage．（動(dòng)名詞作主語(yǔ)）

There being nothing else to do，we went home．（分詞作狀語(yǔ)）4．由there be構(gòu)成的固定句型

由there be構(gòu)成的一些固定句型在英語(yǔ)中很活躍，需很好地掌握。常見(jiàn)的有：

There is no point in ＋v-ing：沒(méi)道理，沒(méi)用，沒(méi)必要

There is no use（in）＋v-ing：毫無(wú)用處

There is no sense in ＋v-ing：毫無(wú)道理

There is no need to ＋v：沒(méi)有必要

There is no ＋v-ing：不可能，無(wú)法。

例如： There is no use in hiding that fact from him ．

There is no point in arguing further．

There was no mistaking his intentions this time．

5．there與其它動(dòng)詞連用

除動(dòng)詞be外，其它一些動(dòng)詞也可以與there連用。這些動(dòng)詞有兩類：一類是表示存在概念的狀態(tài)動(dòng)詞，如：exist，remain，live，lie，stand等；一類是表示某事發(fā)生或某人到達(dá)等概念的不及物動(dòng)詞，如：come，enter，arise，occur，follow，appear等。

第五篇：it句型用法小結(jié)

It句型的用法小結(jié)

[ 2008-4-15 9:08:00 | By: 螞蟻 ]

在學(xué)習(xí)中，同學(xué)生們對(duì)“It ”的基本句型結(jié)構(gòu)經(jīng)?；煜磺澹旅孢M(jìn)行簡(jiǎn)單分析。

一、It引起的幾個(gè)易混淆的時(shí)間句型 1，It + be + 時(shí)間 + since-clause

這個(gè)句型表示從since 從句謂語(yǔ)動(dòng)作發(fā)生以后到現(xiàn)在或過(guò)去所經(jīng)過(guò)的一段時(shí)間，意為“自從......以來(lái)已多久了”，主句多用一般現(xiàn)在時(shí)，從句用一般過(guò)去時(shí)，如果表示過(guò)去的情況，主句用一般過(guò)去時(shí)，從句用過(guò)去完成時(shí)，或主句用過(guò)去完成時(shí)，從句用一般過(guò)去時(shí)。例如：

It is three years since his father passed away.(從現(xiàn)在算起)It was 10 years since they married.(從過(guò)去算起)

It had been fifteen years since she left Shanghai.(從過(guò)去算起)30 years has passed since we joined the Party.(從現(xiàn)在算起)2，It + be + 時(shí)間 + before-clause

這個(gè)句型中的時(shí)間一般為表示一段時(shí)間的詞語(yǔ)(如：long years , months , weeks , days ,hours , minutes)，主句中的謂語(yǔ)動(dòng)詞用肯定式，意為“過(guò)多長(zhǎng)時(shí)間才......”。

主句的謂語(yǔ)動(dòng)詞是否定式時(shí)，意為“沒(méi)過(guò)多長(zhǎng)時(shí)間就......”。主句的時(shí)態(tài)可用過(guò)去時(shí)was或?qū)?lái)時(shí)will be；用was 時(shí)，before從句的動(dòng)詞用一般過(guò)去時(shí)；用will be 時(shí)，before從句常用一般現(xiàn)在時(shí)。例如：

It was not long before she learned those poems by heart.她沒(méi)過(guò)多久就背會(huì)了那些詩(shī)歌。

It was long before the police arrived.過(guò)了很久警察才來(lái)。

It will be hours before he makes a decision.要過(guò)好幾個(gè)小時(shí)他才會(huì)作出決定。It will not be hours before meet again.要不了幾個(gè)小時(shí)我們還會(huì)再見(jiàn)面的。3，It + be + 時(shí)間 + when-clause

這個(gè)句型中, it 指時(shí)間，而且表示時(shí)間的詞語(yǔ)前沒(méi)有介詞(時(shí)間一般為具體時(shí)間)。主句中的謂語(yǔ)動(dòng)詞和從句中的謂語(yǔ)動(dòng)詞在時(shí)態(tài)上一般是一致的，主句是will be，when從句用一般現(xiàn)在時(shí)代替將來(lái)時(shí)。例如：

It was already 8 o'clock when we got home.It was the next morning when we finished our work.It will be midnight when they get there.4，It + be + 時(shí)間 + that-clause 這個(gè)句型是個(gè)強(qiáng)調(diào)句型。例如：

It was two years ago that he made an important invention.(原句是：He made an important invention two years ago.)

It was at 5 o'clock that he practised playing the violin in the morning.(原句是：He practised playing the violin at 5 o'clock in the morning.)比較：It was 5 o'clock when he started in the morning.(5 o'clock前沒(méi)有介詞，這是個(gè)定語(yǔ)從句)5，It + be + time + that從句

這個(gè)句型屬虛擬語(yǔ)氣結(jié)構(gòu)，不管主句中用的是 is 或 was，that從句都須用動(dòng)詞的過(guò)去式或should + 動(dòng)詞原型(但不及用過(guò)去式普通)，在time之前有時(shí)可加上high或about 以加強(qiáng)語(yǔ)氣。例如：

It is time(that)we handed in our exercises.(= It is time that we should hand in our exercises.)

It is high time(that)she wrote a letter to her boyfriend.6，It / This / That + the first(second , third …)time + that從句 這個(gè)句型表示截止到說(shuō)話時(shí)為止的某人的一種經(jīng)歷，關(guān)鍵是注意time前有序數(shù)詞，主句是 is 時(shí)，從句要用現(xiàn)在完成時(shí)；如果主句用一般過(guò)去時(shí)was，則從句須相應(yīng)地用過(guò)去完成時(shí)。例如：

This is the first time(that)these Europeans have visited the Great Wall.It was the fifth time(that)I had paid a friendly visit to Africa.二、It代替從句作形式主語(yǔ)的常見(jiàn)句型

1，it 代替連詞 that 引導(dǎo)的從句作形式主語(yǔ)。1)it + be + 過(guò)去分詞 + that 從句

It's said that Tom has come back from abroad.據(jù)說(shuō)湯姆已經(jīng)從國(guó)外回來(lái)了。It was reported that dozens of children died in the accident.據(jù)報(bào)導(dǎo)，數(shù)十名兒童在事故中死亡。

可用于該句型的過(guò)去分詞還有：known , thought , told , believed , hoped , announced ,expected , decided , suggested等，該句型常可以轉(zhuǎn)換成含有賓語(yǔ)從句的復(fù)合句或者含有不定式作主補(bǔ)的簡(jiǎn)單句。如：

It's said that Tom has come back from abroad.→People say that Tom has come back from abroad.→He is said to have come back from abroad.2)It + be + 名詞詞組 + that 從句

It's a pity that he can't swim for his age.真遺憾，就他的年齡來(lái)講，他竟不會(huì)游泳。

It's a wonder that you could finish such a hard task in such a short time.真奇怪，你竟能在如此短的時(shí)間內(nèi)完成艱巨的任務(wù)。

可用于該句型的名詞詞組還有：an honour , a good thing , a fact , a surprise , good news等。

3)It + be /seem + 形容詞 + that 從句

It is likely that they will beat us tonight.今晚很可能他們會(huì)贏我們。

It doesn't seem that she will give us a hand.她幫我們的可能性似乎不太大。可用于此句型的形容詞還有；wonderful , true , good , right , wrong ,(un)important ,useless , surprising , clear , possible , unusual , lucky , certain 等。

4)It + seem / appear / happen + that 從句

It seems that he enjoys pop songs very much.看來(lái)他非常喜歡流行歌曲。It appears that Tom might change his mind.看來(lái)湯姆會(huì)改變主意。It happened that I went out that day.碰巧我那天外出了。

注意，句型4可轉(zhuǎn)換成含不定式的簡(jiǎn)單句。如上述句子可轉(zhuǎn)換為：

He seems to enjoy pop music very much./ Tom appears to change his mind./ I happened to go out that day.2.it 代替連接代詞或連接副詞引導(dǎo)的從句作形式主語(yǔ)。

1)It is known(not decided , not made clear , found out , discussed , being discussed , being considered , a question , uncertain等)+ 連接代詞或連接副詞引導(dǎo)的從句。如：

It is still a question when we shall have our sports meet.我們將什么時(shí)候舉行運(yùn)動(dòng)會(huì)還是一個(gè)問(wèn)題。

It is uncertain whether he can attend this conference or not.他能否來(lái)開(kāi)會(huì)還不能確定。

2)It doesn't matter(doesn't matter too much , doesn't make too much difference等)+ 連接代詞或連接副詞引導(dǎo)的從句。如：

It doesn't matter whether we go together or separately.我們一起去還是分開(kāi)去都可以。

It doesn't matter too much to me what you do or where you go.你做什么或去什么地方，對(duì)我都無(wú)關(guān)緊要。

例題解析

例1，Was it in this palace _______ the last emperor died ? A.that B.in which C.in where D.which

答：案A。解析：測(cè)試it 用在強(qiáng)調(diào)結(jié)構(gòu)中，為了強(qiáng)調(diào)句子的某一成分（通常是主語(yǔ)、賓語(yǔ)或狀語(yǔ)），常用強(qiáng)調(diào)It is(was)+ 被強(qiáng)調(diào)成分 + that(或who)…。被強(qiáng)調(diào)部分指人時(shí)用 that 或 who，在其它情況下（包括強(qiáng)調(diào)時(shí)間或地點(diǎn)狀語(yǔ)）用that。

例2，I don't think ______ possible to master a foreign language without much memory work.A.this B.that C.its D.it

答案：D。解析：測(cè)試 it 用作形式賓語(yǔ)，代替由不定式、動(dòng)名詞或從句表示的真正賓語(yǔ)。當(dāng)賓語(yǔ)有自己的補(bǔ)足語(yǔ)時(shí)，用it作形式賓語(yǔ)，真正賓語(yǔ)放在補(bǔ)足語(yǔ)之后。常用這種句型的動(dòng)詞有think , make , find , feel , consider 等。

例3，Is _______ necessary to tell his father everything?

A.it B.that C.what D.he 答案：A。解析：測(cè)試 it 用作形式主語(yǔ)，代替由不定式（或不定式復(fù)合結(jié)構(gòu)）、動(dòng)名詞或從句表示的真正主語(yǔ)。

例4，Tom's mother kept telling him that he should work harder , but ______ didn't help.A.he B.which C.she D.it

答案：D。解析：測(cè)試 it 用作人稱代詞，代替前文提到過(guò)的事物。