强调句It is where my father works that I work.It is where my fa

It is when I went into the classroom that the floors were being cleaned by the classmates.

楼上的例子明显是错误的.
英语的强调句有个特点,就是去掉it was 和 that 再把剩下的连起来,剩下的部分一定能够组成一个完整的句子,所以,楼上英语强调句：It was 10 o'clock that we arrived at the airport. 要改成It was at10 o'clock that we arrived at the airport.时间状语从句和楼上一样. 如果是单选,就是去掉it was 和 that 再把剩下的连起来,如果完整,就是强调句,选that,不是,就是when

今天先把强调句讲一下.然后把名词性从句中的同位语从句也熟悉一下.其他以后再讲 1强调句的构成 it +is（was)+强调部分+that+其他 判断是否是强调句 只要把it is 和 that去掉句子完整就是强调句 否则 可能是主语从句（主语从句以后再讲）.先练一下 he met her in the street yesterday 对主语强调 it was he that met her in the street yesterday.（对主语强调且是人 时 也可用who) 对宾语强调 it was her that he met in the street yesterday.对地点状语强调 it was in the street that he met her yesterday.对时间状语强调 it was yesterday that he met her in the street.熟悉句型后 反复练 多分析 该句型不难掌握.2同位语从句 是一种名词性从句 它和前面的名词是同位关系.先把同位语搞懂.如 首都北京 北京就是首都的同位语.在同位语从句中 从句所述内容就是前面名词本身 如 他告诉我球队赢的消息.球队赢就是消息本身.所以球队赢就是同位语.而 他告诉我报纸上的消息 报纸上和消息就不是同位 所以“在报纸上见到”是定语从句.学习同位语主要是要把它与定语从句区别开,另外注意几个后面常跟同位语的单词如 news fact ideas等 下面你自己练一下 看哪个是同位语从句 this is the news that he died.this is the news that he told me.

it is ...that,it is...who这是强调句的结构
主语从句主要有三类：
（1） 由连词that引导的主语从句.
例如：That you will win the medal seems unlikely.
（2）用连接代词或连接副词if,whether 引导的主语从句.
例如：Which of them escaped from the prison is still a mystery.
（3）用关系代词引导的主语从句.
例如：What you need is more practice.

主格

定语从句与强调句句式结构用法比较
　　由it引导的句型结构,常可构成强调句或定语从句,两者极易混淆.一般来说,如果将it is/was...与连接词去掉,句子仍然正确,就为强调句型.这时,就选用that连接词；否则,就为定语从句,其关系词的选择,应根据先行词与从句的关系而定.
　　例1. (1) It is on the island that they spent 10 years.
　　(2) It is the island where (on which) they spent 10 years.
　　比较：(1)该句为强调句.表示地点的名词the island前有介词与其连用,说明它是一个完整的地点状语.如果将it is去掉：They spent 10 years on the island.它的意义仍然完整.故应选用连接词that构成强调句式 (注：强调地点状语时,不可用where连接).
　　(2)该句为定语从句.表示地点的名词the island前没有介词与其连用,说明它不是一个完整的地点状语.如果将it is去掉：They spent 10 years the island.它的意义不完整.故应选用关系副词where或on which 构成定语从句结构.
　　例2. (1) It is on the date that she went abroad.
　　(2) It is the date when(on which) she went abroad.
　　比较：(1)分析句子结构可知,在表示时间的名词the date 前有介词与其连用,说明它是一个完整的时间状语.如果将it is去掉：She went abroad on the date.它的意义仍然完整.故应选用连接词that构成强调句式(强调时间状语时,不可用when连接).
　　(2) 分析句子结构可知,在表示时间的名词the date 前没有介词与其连用,说明它不是一个完整的时间状语.如果将it is去掉：She went abroad the date.它的意义不完整.

简单说就是定语从句中的关系词在从句中充当成分,而强调句去掉强调句结构,it was/is that 句子仍然成立,意思也仍然完整,同位语从句中的联系词只起连接作用没有实际意义,也不充当成分,一般不能省略,而定语从句如果去掉关系词从或者缺少成分,或者句意不够完整.

强调句取掉 It is(was.).that ...,句子仍然完整.
定语从句的关系代词或关系副词在从句中起成分作用,关系代词做动词宾语时可省,其余情况不省.
以你的例句为例,是：
He lives in the building.
第一句,building是先行词,作状语,所以用关系副词where；“他住的房子”.
第二句强调 in the building,住“在房内”.

可以.只要是强调句就用that.

强调句将句子中的it is / was …that同时省去,句子仍然成立；而主语从句将that与后面部分代替it,成立.如：
(1) It is Li Lei’s brother that you met in the street yesterday. 你昨天在街上所见到的就是李蕾的兄弟.
本句若将It is 及 that同时省去为：You met Li Lei’s brother in the street yesterday. 句子同样成立,因此前面的句子是强调句型.
(2) It is exciting that we have succeeded in sending up Shenzhou V. 我们成功地发射了神舟五号这件事情真令人兴奋.
本句若将It is 及 that同时省去为：We have succeeded exciting in sending up Shenzhou V. 显然句子错误,因此,前面句子不是强调句型,而是主语从句.

普通句：It's my honor to get acquainted with you.
倒装句：To get acquainted with you is my honor.
强调句：The honor is mine to get acquainted with you.

定语从句与强调句句式结构用法比较x0d　　由it引导的句型结构,常可构成强调句或定语从句,两者极易混淆.一般来说,如果将it is/was...与连接词去掉,句子仍然正确,就为强调句型.这时,就选用that连接词；否则,就为定语从句,其关系词的选择,应根据先行词与从句的关系而定.x0d　　例1.(1) It is on the island that they spent 10 years.x0d　　(2) It is the island where (on which) they spent 10 years.x0d　　比较：(1)该句为强调句.表示地点的名词the island前有介词与其连用,说明它是一个完整的地点状语.如果将it is去掉：They spent 10 years on the island.它的意义仍然完整.故应选用连接词that构成强调句式 (注：强调地点状语时,不可用where连接).x0d　　(2)该句为定语从句.表示地点的名词the island前没有介词与其连用,说明它不是一个完整的地点状语.如果将it is去掉：They spent 10 years the island.它的意义不完整.故应选用关系副词where或on which 构成定语从句结构.x0d　　例2.(1) It is on the date that she went abroad.x0d　　(2) It is the date when(on which) she went abroad.x0d　　比较：(1)分析句子结构可知,在表示时间的名词the date 前有介词与其连用,说明它是一个完整的时间状语.如果将it is去掉：She went abroad on the date.它的意义仍然完整.故应选用连接词that构成强调句式(强调时间状语时,不可用when连接).x0d　　(2) 分析句子结构可知,在表示时间的名词the date 前没有介词与其连用,说明它不是一个完整的时间状语.如果将it is去掉：She went abroad the date.它的意义不完整.

是同位语!
一般有一些特定的词用同位语,比如fact,news……
其实宾语从句是名词性从句的一种
就是主句中的没有先行词
而定语从句
主句中有先行词

是does count
do可以根据主语而改变
do后面要跟原形哦

楼主难道不知,强调句可强调很多成分,唯独不能强调谓语?

介词+which 定语从句里一般看先行词（被修饰的词）,然后选择合适的介词.
强调句的结构式it is/was.that/when.,单纯的表示强调某部分,你可以把这个结构去掉,然后看句意是不是仍然完整明确,如果是的,那就是强调句,如果不是,就不是强调句

是强调句的话,就不能省略that.考试中要写完整.It's he that/who won the competition

是一个完整的句子,但主谓宾位置有些变化,这个根据强调部分的句子成分而定.例如：it was tom that he blamed.（仅供参考）

1可以用it型强调句强调时间状语
2 非谓语一般不用在强调中,It is after i have breakfast in the room that i will enjoy myself.

前一空是强调结构句中的that
It + be + 被强调部分（这句是where)+that --从句
后一空中的that 是关系代词,指“the film star (电影明星）,在定语从句中作宾语

It was you who passed here when I was comatose

dcabc
adaad
d

没有线呀

这句话如果是定语从句,则应该是这样:It was him…而题目是It was he …可见是强调句而不是定语从句．

可以吧,用动名词更好
It is getting there by bike that will take us half an hour.

不合语言习惯,改为What he likes is to read.

正是因为他在面试中优异的成绩,他被那所重点中学录取了
【It was because of his excellent performance in the interview that he was admitted to that
key middle school.】

不是的.强调句的句型是“It is（was）＋被强调的部分＋that（who）＋原句其它部分”

1强调珠海 it is Zhu Hai-a beautiful place- that i fell in love with.
2强调美丽 it is beautiful of the city Zhu Hai that i fell in love with.
3强调我 it is me that fell in love with Zhu Hai- a beautiful place.
4强调这个地方 it is this place- Zhu Hai- that i fell in love with.

强调句的结构是 It + is （was）+ that...
强调句：
It's not until the star took off her glasses that I recognized her.
倒装句可以否定词放在句首,然后对句子进行倒装.
倒装句：
Not until the star took off her glasses did I recognize her.

1和2是一样的知识点,1句动词是is,所以后面倒装的动词要与is相对用am,so +动词+人称代词,翻译为……也……
3是一个倒装句型It is ……that……
4是感叹句,例如how beautiful you are(你多么漂亮啊)
5是副词放句首须倒装,正常句式是he did it well
6是用do放动词前做强调,可以翻译为“确实,的确”.例如i do like music(我确实喜欢音乐)
7形容词放句首的倒装,原句是he is good
建议买本语法书专门看下倒装吧~

主句：I can't remember what it was
that made the teather give Mary permission to leave是it的内容··
为防止头重脚轻··

He didn't go to work because his mother is ill.

这里应该是定语从句；
判断一个句子是否是强调句型,就是把表示强调的结构去掉再看,比如在这里,我们将表示强调的 It is .that...去掉,剩下的就是 the very book I want to find for my trip,显然就是一个先行词加定语从句了；
现在让我们来看一个强调句型：It was yesterday that I met him （= 我是昨天看到他的）,我们将表示强调的结构去掉,原句变成 Yesterday I met him (= 昨天我见到了),仍然是句子,意思也没变,这才是强调句型.

It was in the street that Cindy met one of her elementary schoolmates last week.

当我去上学的时候,天正在下雪.
It was snowing when I went to university.

it is you that often ask some questions that are not easy to answer

一句话,你的思路是对的!答案均有误!
第一句应为：You are not allowed to..
第二句应该用助动词will,因为原句的shall并非情态动词.这里被动句的主语是三人称了.

强调“观点”：It is the viewpoint that the Bible has.
强调“圣经”：It is the Bible where the viewpoint comes from.

that 可以换成who,不过强调的要是人,至于whom就不得行老

个人认为是 定语从句
把插入语拿掉
做定语从句 完全 符合 语法 文法 习惯
但做强调句 就是 插进去的 拿出来 也自然成句 强调句是直接拆开句子 插进
It is .that...不改变 任何成分 那就是
theft reduction to commercial practice,either through necessity or dedication,or through the availability of new technology,makes news and money.
再把 所谓的插入语 拿掉 （插入语插入语 拿掉不影响句子主体）
Theft reduction to commercial practice makes news and money.
通常一般 一个死物做主动 是不合适的 应该被动
所以 改成 定语从句
It is theft reduction to commercial practice that makes news and money.
完全合适

it wasn't until then did I find that I had left my wallet home.
应该没有DID吧 因为NOT提前所以没有DID,为了表示过去发生,把FIND改成FOUND
it wasn't until then I found that I had left my wallet home.
我英语学的不好,不过我觉得应该是这样吧

把“it is(was)……that(who)”抽掉,适当整理一下句子的语序,如果原句成立的话（但不能添词）,就是强调句
既然时间和地点的前面都没有介词,原句肯定是不成立的,肯定不是强调句!是其它it的句型
用in the world,on earth,at all等介词短语可以表达更强的语气（常用于疑问句):
Where in the world could he be?他到底会在哪儿?
What on earth is it?它究竟是什么?
Do you know at all?你到底知不知道?
相信对你有用!祝英语学习,更上一层楼!

这是强调句.
who have claimed to have given up on ambition as an ideal is the educated.

第一句强调买车的是墨西哥人.
第二句强调卖车的时间是上个星期.
造句：
It was him that I saw in the park the other day.强调我遇到的是他
It was in the park that I saw him the other day.强调我遇见他的地点是公园

二．强调句的人称,时态,数的运用.
强调句的时态依原句而定.
原句的时态为过去的某种时态,
则强调句中的be就用过去时
was.
原句为现在的某种时态,
强调句中就用be的现在时态.
有时还可用It might be／must have been／can’t be ...that...
等句型.

It is Jack who loves football most.(is 与loves时态一致)
It was because I was stuck in the traffic that I came
late(was 与came时态保持一致)
It might be tomorrow morning that the news will be broadcast.
Tips:
被强调部分为主语时,
that／who后面的谓语动词在人称和数上应和句子的主语相一致.如：
It is I that／who am your friend that hill come to help you.

单说就是定语从句中的关系词在从句中充当成分,而强调句去掉强调句结构,it was/is that 句子仍然成立,意思也仍然完整,同位语从句中的联系词只起连接作用没有实际意义,也不充当成分,一般不能省略,而定语从句如果去掉关系词从或者缺少成分,或者句意不够完整.

常见强调句练习
一,强调句型的强调部分必须是对 that / who 之后句子的某一成分表示强调,如果把
"It is (was)...that "去掉,该句应该意思完整,不缺任何句子成分:
1.Is it _____ who wants to see you.
A.him B.he C.his D.himself
2.It was _____ who respected all their teachers.
A.them B.their C.they D.themselves
3.--- What is Mary
--- Was it _____ that you were referred to
A.he B.she C.her D.they
4.It _____ Mike and Mary who helped the old man several days ago .
A.was B.are C.were D.had been
5.It _____ at Christmas that John Smith gave Mary a handbag.
A.must have B.will be C.might have been D.may have had
6.---Was that new school master who walked by
--- _____.
A.It must be that B.It must have been
C.He must be D.This must have been
【题解】强调部分如果是人称代词,应根据句子需要选择它的主格或宾格形式:如第⒈ ⒉⒊ 小题.注意谓语动词形式与整个句子语境的一致性:如第⒋⒌ ⒍ 小题.
二,强调部分为疑问词时:
7._____ electricity plays an important part in our daily life
A.Why was it that B.Why is it that C.Why is it D.Why it is that
8.Who was it _____ wanted to see me just now
A.that B.who C.when D.when
9._____ you met the foreigner from Canada
A.Where it was that B.Who it was that
C.Where was it that D.Where was that
【题解】强调部分为疑问代词或疑问副词时,该强调句句型结构与特殊疑问句句型相 同,即:"疑问词 + 一般疑问句"
三,强调部分为 " not ...until " 句型:
10.It was not until late in the evening _____ her husband arrived home .
A.which B.when C.that D.how
11.It was not until 1920 _____ regular radio broadcasts began.
A.which B.when C.that D.since
12.It was not _____ she took off her dark glasses _____ I realized she was a famous film star.
A.when ; that B.until ; that C.until ; when D.when ; then
【题解】注意 " not ...until " 句型的变化.比较下列三个句子:
She didn't remember her appointment with the doctor until she had arrived home.
It was not until she had arrived home that she remembered her appointment with the doctor.
Not until she had arrived home did she remember her appointment with the doctor.
四,复合句中的强调句型:
13.I can't quite remember _____ you started doing the work .
A.that it was when B.when it was that C.when was it that D.that was it when
14.She wants to know if it is 600 miles an hour _____ the newest plane can go.
A.which B.that C.when D.on which
15.Was it _____ he was seriously ill that he didn't come to school yesterday .
A.although B.that C.because D.since
16.It was only when I reread his poems recently _____ I began to appreciate their beauty .
A.until B.that C.then D.so
17._____ he came back home that we knew what had happened .
A.When it was B.It was when C.Was it when D.When was it
18.It was the training _____ he had as a young man _____ made him such a good engineer.
A.what ; that B.that ; what C.that ; which D.which :that
19.It was _____ he said _____ disappointed me at that time.
A.what ; that B.that ; that C.what ; what D.that ; what
【题解】当强调部分为从句或含从句的短语时,应首先确定它在句子中的作用.第⒔ ⒕ 小题为宾语从句;第⒖ ⒗ ⒘ 小题为状语从句,此时不能对 for,as ,since ,although 引导的从句表示强调; 第 ⒙ 小题的强调部分又被一个由 which 引导的定语从句修 饰; 第⒚ 小题的强调部分则为 what 引导的主语从句.
五,强调部分为介词短语:
20.It was through Jack _____ Mary got to know Bob .
A.who B.whom C.how D.that
21.It was _____ great care that they did the job.A.for B.about C.with D.in
22.It was on October 1st 1949 _____ new China was founded .
A.which B.when C.as D.that
23.Was it in this palace _____ the last emperor died
A.that B.in which C.in where D.which
24.It was the school gate ______ I met an old friend of mine after class .
A.that B.which C.where D.why
【题解】强调部分为介词短语时,①应特别注意能引起误解的干扰选项,如第20小题; ②表示时间或地点时,应注意与定语从句的区别,如第24小题.

不能
同位语是同位语 强调句是强调句
这两个是不同的