强调句

用 It is/was … that/who … 结构把句中某一成分提取出来加以强调的句式。

一、核心规则

基本结构为 It + be + 被强调成分 + that (who) …，其中的 it is/was 与 that 是结构词，去掉后句子依然成立。
被强调成分可以是主语、宾语、状语（含状语从句），但不能是表语。
被强调部分指人时可用 who 代替 that；指物或状语时用 that，通常不用 which 代替 that，也不用 when/where 代替 that。
可以强调 because 引导的原因状语从句，但通常不强调 since、as 引导的原因从句，也不强调 although 引导的让步从句。
强调句的时态由 be 体现，且被强调成分的人称数不影响结构词。
判断某句是否强调句的检验法：去掉 It is/was 和 that 后，剩余部分能否还原为一个完整句子。
强调句中可以嵌套定语从句或状语从句，此时须分清哪一处是结构词（见定语从句）。

It was he that bought the book in this shop yesterday.（是他昨天在这家店买了这本书。）
It was the book that he bought in this shop yesterday.（他昨天在这家店买的是那本书。）
It was in this shop that he bought the book yesterday.（他昨天就是在这家店买的书。）
It was at ten o’clock that he came back.（他是 10 点钟回来的。）
It was because he loved my money that he married me.（他是因为爱我的钱才同我结了婚。）
It was in the small house which was built with stones by his father that he spent his childhood.（他就在他父亲用石头砌的那座小房子里度过了童年。）— 强调句中嵌套定语从句

✗ It was ten o’clock that he came back. → ✓ It was ten o’clock when he came back.（当他回来时，时间是 10 点钟。）原因：被强调的是时间点本身时用 when 引导时间状语从句，不是强调句。
✗ It is autumn that leaves fall. → ✓ It is autumn when leaves fall.（当树叶落的时候就是秋天了。）比较强调句：It is in autumn that leaves fall.
✗ It is a long time that I met you last. → ✓ It is a long time since I met you last. 原因：since 表“自从”，非强调结构。
✗ It was Tom that he failed the exam. 想强调表语 → ✓ 强调句不强调表语，须改写句子。

作者：admin 创建时间：2026-09-11 18:05
最后编辑：admin 更新时间：2026-10-06 00:48