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英语强调句型结构及用法课件
英语强调句型的结构是: It is (was) + 被强调部分+ that/ who +句子的其它成份 。英语中许多句子常常可以通过强调句型对句子的不同成份进行强调。如：主语、宾语、状语、补语、表语和从句。一般说来,被强调部分指人时,用who;指事物时用that,但that也可以指人。被强调部分如果为主格人称代词,who/that后的动词和主格人称代词在人称和数上保持一致。
do强调句型的用法：把助动词do放到谓语前面，主要用于陈述的肯定，否定的话，就跟普通否定句一样。
举例：
今天早上正是我在公园遇见了他。 It was i who/that met him in the park this morning.
今天早上我在公园遇见的正是他。 It was him that i met in the park this morning.
今天早上我正是在公园里遇见了他。 It was in the park that i met him this morning.
英语强调句怎么变
去掉it‘s……that后，剩余的部分调整顺序，仍然为一个完整句子的，就是强调句
而在定语从句中，由于that 既作为引导词，又在定语部分中充当成分，所以去掉以后句子就乱了
强调句的it’s……that 你把它想象成 重点保护区，把一个句子里某个成分，单独拿出来放进这个保护区，就是强调句了。
英语中的强调句型举例
强调句主要就是运用It is···that/who的形势，强调的主题加在it is 后面，判断是否用错最简单的方法就是：把it is ··that去掉，若句子完整就是正确的。比如：It is LIlei who helps me finish the work It is on saturday that we set off to guilin
英语强调句do的用法
强调句型的构成是：It is (was) + 被强调部分+ that (who) + 句子的其他成分。被强调的部分放在 It is (was) 之后，其它部分置于that之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，可以由who代替that。
1. 被强调的成分举例：
原句：Tom found my pen in the classroom yesterday.
强调主语：It was Tom who / that found my pen in the classroom yesterday.
强调宾语：It was my pen that Tom found in the classroom yesterday.
强调地点状语：It was in the classroom that Tom found my pen yesterday.
强调时间状语：It was yesterday that Tom found my pen in the classroom.
2. 强调句型的一般疑问式：
直接把is或was提到it之前即可。例如：
Was it Tom that found your pen in the classroom yesterday?
3. 强调句型的特殊疑问式：
特殊疑问词+ is (was) it + that +句子的其他成分。特殊疑问词即是被强调的成分。例如：
Who was it that found your pen in the classroom yesterday?
4. that (who) 有时可以省略：
这种强调句型中的that或who有时可以省略。例如：
It was my brother (that / whom) you saw the other day.
5. 强调原因状语从句要注意：
若从句由as或since引导，强调时则改为because，这是因为，because引导的原因从句表示的意义非常强烈，符合强调句的目的。例如：
As she got up late, she missed the first bus. 变为：
It was because she got up late that she missed the bus.
6. 强调句的否定转移：
有些否定句在变成强调句时，要把否定转移到被强调的词语之前。尤其是“not... until...”句式的强调要特别注意。例如：
He didn't realize his mistake until the teacher had told him. 变为：
It wasn't until the teacher had told him that he realized his mistake.
【注意】 在强调句式中，虽然not被提前，但“not... until...”句型不要倒装。
高考中强调句型考查热点
考点一：强调句型的基本结构
强调句型“It is / was + 被强调的成份 + that + 其他成份”用来强调主语、宾语和状语等成份。that只起连接作用，不作成份，但不能省略。有时强调的部分比较特殊，如主语从句、状语从句、名词、不定式短语、V-ing的复合结构等。如：
It was in the library that I saw her yesterday. 我昨天正是在图书馆见到她的。
考点二：特殊句式中的强调句型
1. 如果强调的是特殊疑问句中的疑问词，表示“到底”、“究竟”等语气时，就用如下结构：
“特殊疑问词 + is / was + it + that + 该句的其余部分”。如：
How is it that you usually go to work? 你通常是怎样去上班的？
2. 在强调“not... until”结构中由until所引导的短语（或从句）作时间状语时，要用固定的强调句型：“It + is / was + not until... + that + 该句的其余部分”，that所引导的从句中的谓语动词用肯定式。如：
His father didn't come back from work until 12
o'clock. = It was not until 12 o'clock that his father came home form work. 直到12点他的爸爸才下班回家。
考点三：强调句型与时间状语从句、定语从句的判断
强调句型要注意和it代表时间、距离、温度、自然现象、具体事物或人物等时所构成的各种句型的区别。试比较：
It was on March 1 that I had my hair cut. (强调句)
It was March 1 when I had my hair cut. (后面是定语从句)
判断是否是强调句，可采用“还原法”。如果还原为一般句式后，句子各种成份完整，则是强调句。否则不是。如第一句可还原成：I had my hair cut on March 1.
考点四：偶尔考查谓语动词的强调句式
英语中常用助动词do、does或did强调谓语。如：
He did go to the airport yesterday, but he didn't find you. 他昨天确实去了机场，但他没有找到你
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