时间：2022-09-27 11:24:19
大家应该发现，强调句型的重要性。在高中英语学习中，特别是在高三备考复习中，我们在练习和测试中经常会遇到强调句型。由于有些句子中从句重叠应用，很多学生不能准确辨认强调句型，容易把强调句型与形似句型混淆。本文从强调句型与各种从句的结合，强调句型与形似句型的区别两个角度进行归纳总结。
一、强调句型与各种从句的结合
1.与定语从句相结合
特征：在强调句型中，被强调部分后面有一定语从句修饰。
1）It was the training that he had when he was young that made him successful.
第一个that引导定语从句，修饰被强调部分the training，that在定语从句在作had的宾语；第二个that是强调句型结构中的that，无实义。
2）It is in Qingdao that you are going to pay a visit to that this kind of machine is produced.
第一个that引导定语从句，修饰qingdao，that在定语从句中作pay a visit to的宾语；第二个that是强调句结构中的that，无实义。
2.与状语从句相结合
特征：被强调部分为状语从句
1）It was where I had left it that I found my book..
被强调部分为where引导的地点状语从句，此句可还原成：I found my book where I had left it.
2）It was because he was ill that he didn’t come to the party.
被强调部分为because引导的原因状语从句，此句可还原成：He didn’t come to the party because he was ill.
2.与名词性从句相结合
（1）主语从句
特征：被强调部分为主语从句。
1）It was that he often fails in exams that makes his parents worried about him.
第一个that引导主语从句，是被强调部分。
2）It was what he said that made us surprised.
What引导的从句为主语从句，是被强调部分。
（2）宾语从句
特征：强调句型用作宾语从句。
I don’t remember when it was that I showed you around the museum.
（3）同位语从句
特征：被强调部分后面跟有同位语从句。
It was the news that our team had won the game that made us excited.
第一个that 引导的从句为被强调部分的同位语从句；第二个that是强调句结构中的，无实义.
二、强调句型与形似句型的区别
1.It+be+被强调部分+that…
这是强调句型。句中be动词的时态只可用is或was。如果从句中谓语动词为现在或将来时态，be动词用is；如果从句中谓语动词为过去时态，be动词用was。强调句型的重要特征是：去掉it，be，that后，原句仍然成立。
1）Where was it that you put the dictionary？
2）It is the ability to do the job that matters，not where you come from or what you are.
2.It+be+n/adj./p.p+that…
此句型中，it是形式主语，that从句是真正的主语，去掉it，be，that后，原句不成立。
1）It is important that we master a foreign language
2）It is hoped that the fire will be controlled soon.
3.It+be+时间+when…
此句型表示某事发生时是什么时候，意为“当……时”。其中it指时间，when引导时间状语从句。
1）It was midnight when we got everything ready for the meeting.
这是时间状语从句，不能还原。意为“当我们为会议做好一切准备时，已经是午夜了”。
2）It was at midnight that we got everything ready for the meeting.
这是强调句型，强调时间状语。意为“我们是在午夜为会议做好了一切准备。”
3.It+be+时段+since..
这一句型需要特别注意两点：一是since从句中谓语动词的时态。如果主句中的be动词用is或has been，since从句中谓语动词常用一般过去时；如果主句中的be动词为was，since从句中谓语动词常用过去完成时。二是since从句中的谓语动词的种类。since从句中谓语动词如果是非延续性动词，意为“自从…以来已经有多久了”；since从句中谓语动词若为延续性动词，意为“已经有多久不…了”。
1）It is two years since he died.他去世已经有两年了。（die为非延续性动词）
2）It was three years since he worked there.他已经有三年不在那工作了。（work为延续性动词）
5.It+be+时段+before…
这一句型中be动词的时态常用一般过去时或一般将来时。be的形式可以是肯定式was（will be），也可以是否定式wasn’t（won’t）。若主句中的be动词用一般过去时，before从句中谓语动词也用一般过去时，意为“过了（没过）多久就了”；若主句中的be动词用将来时，before从句中谓语动词用一般现在时，意为“要过多久（过不了多久）才（就）……”。
（1）It was not long before we met again.没过多久我们就又见面了。
（2）It will be two years before she goes abroad.要过两年她才会出国。