强调结构是英语中为引起别人注意而使用的较为常见的一种表达方式。下面我把各种强调结构分述如下：
一、“It be … that / who …”强调句型
这是一种最常见的强调手段，可以用此来强调句子的主语、宾语和状语。在使用这种强调句型时，应注意如下5点：
1、注意“be”的“数”和“时态”变化。be在句中总是单数形式，没有复数形式。be 的时态形式只有 is 和 was 两种。若原句的谓语动词是各种现在或将来时态，则用is；若原句的谓语动词为过去的某种时态，则 be 的形式应为 was。例如：
It is in the east of China that Shanghai lies.
It was Jack who / that broke the window.
2、在强调时间、地点、原因、行为方式等状语时，被强调的部分后面不能用 when, where, why或how，而只能用 that。
It was because his mother was ill that he didn't attend school.
3、强调定语从句，此时应弄清题意和句子的主干，还应对句子的结构有一个清晰的理解。
Was it in the reading - room where Tom met you that you were reading a magazine?
4、强调 not until 句型。应用“It be not until … that”句型。
It was not until he graduated from high school that he realized his mistakes.
5、强调特殊疑问句，应用“疑问词 + be + it + that …？”句型。
How many people is it that are being trained for the special work?
二、强调谓语动词
“It be … that”句型不能强调谓语动词。若要强调谓语动词，则须在谓语动词的原形前面加上助动词 do、does 或 did。
Jim does study very hard.
三、强调名词
常用 very, just 强调名词，此时常构成固定搭配：just the + 名词或 the very + 名词。
This is just the book / the very book I'm looking for.
四、用副词进行强调：
用 really; still, even, a lot, a greay deal, much, far, by far 等进行强调。
I really saw him in the park yesterday.
It was very cold yesterday, but it is even colder today.
五、用重复使用一个词，来达到强调的效果。
He talked, talked and talked, as if he knew everything.
He told us the same old story over and over again.
六、用短语进行强调
in the world, on earth, under the sun, at all 等词语用于疑问句中，意为“究竟”“到底”，用于否定句中，意为“全然”“一点也不”。
What on earth do you want me to do?
He had nothing in the world but a million-pound not.
七、用倒装进行强调
Not a single mistake did he make.
Only in this way can you succeed.
八、用双重否定进行强调
Men can't live without air.
以上八点是同学们在处理强调结构时应特别加以注意的地方。只要同学们不断地认真领会强调结构的形式和意义，善于思考，勤学苦练，一定会运用自如的。