【表语从句例句】表语从句是英语语法中的一种从句类型，用于在系动词后作表语，说明主语的身份、状态或性质。常见的系动词包括 be, seem, appear, look, sound, feel, become, remain 等。表语从句通常由 that、whether、if、what、how、when、where、why 等引导。
以下是一些典型的表语从句例句，帮助理解其用法和结构：
表语从句总结
| 例句 | 句子结构分析 | 说明 |
| This is that he failed the exam. | 主语：This；系动词：is；表语从句：that he failed the exam | 表语从句说明“this”的内容 |
| The problem is whether we can finish it on time. | 主语：The problem；系动词：is；表语从句：whether we can finish it on time | 表语从句表示问题是否能按时完成 |
| He looks as if he were tired. | 主语：He；系动词：looks；表语从句：as if he were tired | “as if”引导的表语从句，表示一种假设情况 |
| She became what she wanted to be. | 主语：She；系动词：became；表语从句：what she wanted to be | 表语从句说明她成为什么 |
| It seems that he is not coming. | 主语：It；系动词：seems；表语从句：that he is not coming | 表语从句说明“it”的状态 |
| The question is how we should solve it. | 主语：The question；系动词：is；表语从句：how we should solve it | 表语从句说明问题的解决方式 |
常见引导词与用法
| 引导词 | 用法说明 | 示例 |
| that | 引导陈述性内容 | This is that he was late. |
| whether / if | 引导选择性内容 | The issue is whether we can go. |
| what | 引导名词性从句 | She is what I need. |
| how | 引导方式状语从句 | The way he did it is how we should do it. |
| when / where / why | 引导时间、地点、原因 | That’s where we met. |
通过以上例句和表格，可以更清晰地理解表语从句的构成和使用场景。掌握这些结构有助于提高英语表达的准确性和丰富性。