課程內(nèi)容
高中英語《全球變暖 Unit 4 Global warming(Part 3)》（選修6）
Grammar
It的用法及強(qiáng)調(diào)句型
由it引導(dǎo)的強(qiáng)調(diào)句結(jié)構(gòu)：
It is(was)+被強(qiáng)調(diào)部分+that(who)+句子其他部分
注意：此結(jié)構(gòu)強(qiáng)調(diào)的成分僅限于主語，賓語，介詞賓語和狀語。（強(qiáng)調(diào)人時(shí)用that和who/whom皆可）
It was she who/that had been wrong.
是她錯(cuò)了。（主語）
It was the girl whom/that I met just now.
我剛才遇見的就是這個(gè)女孩。（賓語）
It was Tom to whom the teacher had talked.
老師與其談話的那個(gè)人是湯姆。（介詞賓語）
It was on Monday night that all this happened.
所有這一切就是在星期一的晚上發(fā)生的。（狀語）
注意：
1.強(qiáng)調(diào)句的一般疑問句句型：
Is/Was+it+所強(qiáng)調(diào)的部分+that/who/whom+其余部分？
Was it Tom that/who I saw yesterday here?
Was it at eight o'clock that you began to work?
2.強(qiáng)調(diào)句的特殊疑問句句型：
疑問詞+所強(qiáng)調(diào)的部分+that/who+其余部分？
Where was it that you picked up the wallet?
Why was it that he couldn't answer the question?
3.名詞性從句（賓語/表語從句）強(qiáng)調(diào)句的基本結(jié)構(gòu)：疑問詞（強(qiáng)調(diào)部分）+it is that+其它成分？
I just wonder what it is that makes him excited.
He is unwilling to tell me who makes him angry.
He is unwilling to tell me who it is that made him angry.
4.判斷是否是強(qiáng)調(diào)句可把It is/was...that去掉，剩余部分如果是一個(gè)完整的句子就是強(qiáng)調(diào)句。
It was in the street that I met her father.
In the street I met her father.
It was because she was ill that they didn't ask her to do the job.
Because she was ill,they didn't ask her to do the job.
1)It was in 1945 that World War II ended.(強(qiáng)調(diào)句）
2)It was in 1945 when World War II ended.(定語從句）
3)It was a long time since I met you last.(時(shí)間狀語從句）
5.若原句是not...until句型，在強(qiáng)調(diào)until部分時(shí)，要把否定形式放入被強(qiáng)調(diào)部分
He didn't leave until I returned.=It was not until I returned that he left.
I didn't realize she was a famous film star until she took off her dark glasses.
→ Not until she took off her dark glasses did I realize she was a famous film star.
→ It was not until she took off her dark glasses that I realize she was a famous film star.
1)It was not(C)she took off her dark galsses ( )I realize she was a famous star.
A when,that    B until,when    C until,that    D when,then
2)It was not until( D)that ( )to prepare his lessons.
A did his father come in,the boy began
B did his father com in,did the boy begin
C his father came in ,did the boy begin
D his father came in,the boy began
典型例題分析：
1)It was last night(C)I saw the film Star Wars.
A who   B when   C that   D which
強(qiáng)調(diào)句的連詞只有兩個(gè)，that和who.當(dāng)強(qiáng)調(diào)的部分是人，且為句子的主語時(shí)，才用who,其余用that.
2)It is ten years(A)he returned to Canada.
A that   B when  C since   D as
考點(diǎn)是連詞用法。本題易誤選為A。其實(shí)本句不是強(qiáng)調(diào)句。若是去掉It be...that還應(yīng)是一個(gè)完整的句子。而本句去掉“It is...that,只剩下ten years he returned to Canada不成句。因此本句不是強(qiáng)調(diào)句。
It is +時(shí)間+since...,其中is=has been
高考鏈接
1.It wasn't until nearly a month later(D)I received the manager's reply.
A since   B when  C as   D that
2.It was not until 1920 (C) regular radio broadcasts began.
A while  B which   C that   D since
3.It was about 600 years ago(A) first clock with a face and an hour hand was made.
A that   B until   C before   D when
4.It was only when I reread his poems recently (B) I began to appreciate their beauty.
A until   B that  C then   D so
5.It is these poisonous products (B) can cause the symptoms of the flu,such as headache and aching muscles.
A who  B that  C how  D what
6.Why!I have nothing to confess,(A) you want me to say?
A What is it that    B What it is that    C How is it that    D How it is that
7.It was (C)back home after the experiment.
A not until midnight did he go
B until midnight that he didn't go
C not until midnight that he went
D until midnight when he didn't go
8.It was with great joy(D) he received the news that his lost daughter had been found.
A because  B which   C since   D that
練習(xí) 1
1.It was this village (A)I was bought.
A where  B that   C on which   D which
2.It was in this village (B)I was brought up.
A where  B that   C on which   D which
3.-Was it under the tree (C)you were always talking to a friend?
-Sure.But when I got back there,the bike was gone.
A that   B where   C which   D while
4.Can it be in the drawer (D)you put your passport?
A where   B in which   C there   D that
5.It was July 1,1997 (A) saw the return of Hong Kong to the motherland.
A that   B when  C which  D in which
6.It is two years (B) I joined the army.
A before  B since   C that  D after
7.It was two years (A) I joined the army.
A before  B since   C that  D after
8.It was not until 1920 (C) regular radio broadcast began.
A while  B which  C that   D since
9.(D) is the fact that English is being accepted as an international language.
A There  B This   C That   D It
10.It was about 600 years ago(A) first clock with a face and an hour hand was made.
A that   B until   C before   D when
11.I hated (A) when people talk with their mouths full.
A it   B that   C these  D them
12.Tom's mother kept telling him that he should work harder,but (D) didn't help.
A he   B which   C she   D it
13.Was (C) in 1998( )your teacher granduated from university?
A that...that   B it...which   C it...that   D it...when
14.He felt (A)duty to work for human rights and progress.
A it his   B his    C that is a     D that is his
15.(D) is no good ( )without doing anything.
A This...talking    B It...to speak     C That...to say    D It...talking