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大家知道，高中英语中的强调句比较简单，因为它有较为固定的结构，但同学们在面对这种句型时却总是容易出错。下面，我们来看看如何较好的掌握强调句。
首先，弄清强调句的基本结构和成句原则。
其基本结构是It is/was...that/who...，当强调句子的某个成分时，就将被强调的部分放在It is/was...that/who中间。其成句原则是：当It was/is...that/who去掉之后，剩下的句子仍然是一个完整的句子。
其次，弄清强调句的基本类型只有两种：一种是陈述强调句，一种是疑问强调句。
先说陈述强调句。要特别注意两点：当强调人时，用It is/was...who...，当强调物时，用It is/was...that...。不过，无论强调人，还是强调物，只要句子陈述的是一般现在时、现在进行时、现在完成时、现在完成进行时、一般将来时、将来进行时，都用is；只要句子陈述的是一般过去时、过去进行时、过去完成时、过去完成进行时、过去将来时、过去将来进行时，都用was。例如：
Tom met your brother yesterday in the park. 汤姆昨天在公园遇见了你哥哥。
It was Tom who met your brother yesterday in the park. 正是汤姆昨天在公园遇见了你哥哥。
It was yesterday that Tom met your brother. 正是昨天汤姆在公园遇见了你哥哥。
It was in the park that Tom met your brother yesterday. 正是在公园汤姆昨天遇见了你哥哥。
再说疑问强调句。其句型结构：特殊疑问词（What/Why/How/Where/When/Who）+ was/is it that...。例如：
What was it that made you sad？ 究竟是什么让你伤心？
When is it that we will set off？ 我们究竟什么时候出发？
How was it that you got there？ 你们究竟怎么到那里的？
注意， 当这种疑问强调句充当从句时，句子要变形成陈述句的语序，所以，这个结构就变成为（What/Why/How/Where/When/Who）+it is/was that...。例如：
Can you tell me what it was that made you sad？你能告诉我究竟是什么让你伤心吗？
I don’t know when it is that we will set off. 我不知道我们究竟什么时候出发。
第三，弄清易错的两点：
1. 句型相似，句意有异。例如：
It was in the factory that my father used to work.我父亲过去正是在这间工厂工作。
It was the factory where my father used to work.这是我父亲过去工作过的工厂。
仔细观察这两个句子，前一个是强调句，后一个却是定语从句。区分它们的关键是强调句里被强调部分是一个介词词组，定语从句中was之后的是一个名词。再如：
It was at 7 o’clock that he came back yesterday. 他昨天正是在七点钟回来的。
It was 7 o’clock when he came back yesterday. 他昨天回来时是七点钟。
再如，以下例句，不必分析句子结构，作为固定句型记下来。
It is the third time that Tony and his sisters have yawned； they must be sleepy. 这是托尼和他妹妹们第三次打呵欠了，他们一定困了。
It is a pity that he didn’t take part in my birthday party. 真遗憾他没参加我的生日晚会。
第一句：It is/was the first/second time that这是第几次做……事情了，重点记住that从句中用完成时态。
第二句：It is a pity/a surprise/a shame/no wonder that...
类似的句型还有：
①It is necessary/important/strange that...
②It’s said/reported/believed/knowned that...
③It occurred to/struck me that...
2. 意思相同，句型不同。下面这个句子有两种翻译方法，请注意它们的区别：直到我读了你的信，我才理解了他的做法。
①It was not until I read your letter that I understood why he did so. （强调句）
②Not until I read the letter did I understand why he did so. （倒装句）
1. I don’t understand smoking is not allowed here.
我不理解究竟为什么这里不准抽烟。
2. It he told me the truth I knew what had happened.
直到他告诉我真相我才明白发生了什么。
3. Can you tell me they went？
你能告诉我他们究竟去哪里了吗？
4. made him so happy？
究竟是什么使得他如此开心？
5. It that they met on the corner of the street.
正是在那个阳光明媚的早晨，他们在街角相遇了。
6. According to the media， after Nelson Mandela passed away， it was in his hometown .
据媒体报道，纳尔逊·曼德拉过世后，被葬在他的家乡了。
1. why it is that
2. was not until...that
3. where it was that
4. What was it that
5. was on the sunny morning
6. that he was buried
首先，弄清强调句的基本结构和成句原则。
其基本结构是It is/was...that/who...，当强调句子的某个成分时，就将被强调的部分放在It is/was...that/who中间。其成句原则是：当It was/is...that/who去掉之后，剩下的句子仍然是一个完整的句子。
其次，弄清强调句的基本类型只有两种：一种是陈述强调句，一种是疑问强调句。
先说陈述强调句。要特别注意两点：当强调人时，用It is/was...who...，当强调物时，用It is/was...that...。不过，无论强调人，还是强调物，只要句子陈述的是一般现在时、现在进行时、现在完成时、现在完成进行时、一般将来时、将来进行时，都用is；只要句子陈述的是一般过去时、过去进行时、过去完成时、过去完成进行时、过去将来时、过去将来进行时，都用was。例如：
Tom met your brother yesterday in the park. 汤姆昨天在公园遇见了你哥哥。
It was Tom who met your brother yesterday in the park. 正是汤姆昨天在公园遇见了你哥哥。
It was yesterday that Tom met your brother. 正是昨天汤姆在公园遇见了你哥哥。
It was in the park that Tom met your brother yesterday. 正是在公园汤姆昨天遇见了你哥哥。
再说疑问强调句。其句型结构：特殊疑问词（What/Why/How/Where/When/Who）+ was/is it that...。例如：
What was it that made you sad？ 究竟是什么让你伤心？
When is it that we will set off？ 我们究竟什么时候出发？
How was it that you got there？ 你们究竟怎么到那里的？
注意， 当这种疑问强调句充当从句时，句子要变形成陈述句的语序，所以，这个结构就变成为（What/Why/How/Where/When/Who）+it is/was that...。例如：
Can you tell me what it was that made you sad？你能告诉我究竟是什么让你伤心吗？
I don’t know when it is that we will set off. 我不知道我们究竟什么时候出发。
第三，弄清易错的两点：
1. 句型相似，句意有异。例如：
It was in the factory that my father used to work.我父亲过去正是在这间工厂工作。
It was the factory where my father used to work.这是我父亲过去工作过的工厂。
仔细观察这两个句子，前一个是强调句，后一个却是定语从句。区分它们的关键是强调句里被强调部分是一个介词词组，定语从句中was之后的是一个名词。再如：
It was at 7 o’clock that he came back yesterday. 他昨天正是在七点钟回来的。
It was 7 o’clock when he came back yesterday. 他昨天回来时是七点钟。
再如，以下例句，不必分析句子结构，作为固定句型记下来。
It is the third time that Tony and his sisters have yawned； they must be sleepy. 这是托尼和他妹妹们第三次打呵欠了，他们一定困了。
It is a pity that he didn’t take part in my birthday party. 真遗憾他没参加我的生日晚会。
第一句：It is/was the first/second time that这是第几次做……事情了，重点记住that从句中用完成时态。
第二句：It is a pity/a surprise/a shame/no wonder that...
类似的句型还有：
①It is necessary/important/strange that...
②It’s said/reported/believed/knowned that...
③It occurred to/struck me that...
2. 意思相同，句型不同。下面这个句子有两种翻译方法，请注意它们的区别：直到我读了你的信，我才理解了他的做法。
①It was not until I read your letter that I understood why he did so. （强调句）
②Not until I read the letter did I understand why he did so. （倒装句）
1. I don’t understand smoking is not allowed here.
我不理解究竟为什么这里不准抽烟。
2. It he told me the truth I knew what had happened.
直到他告诉我真相我才明白发生了什么。
3. Can you tell me they went？
你能告诉我他们究竟去哪里了吗？
4. made him so happy？
究竟是什么使得他如此开心？
5. It that they met on the corner of the street.
正是在那个阳光明媚的早晨，他们在街角相遇了。
6. According to the media， after Nelson Mandela passed away， it was in his hometown .
据媒体报道，纳尔逊·曼德拉过世后，被葬在他的家乡了。
1. why it is that
2. was not until...that
3. where it was that
4. What was it that
5. was on the sunny morning
6. that he was buried