【that从句介绍】在英语语法中,"that从句"是一种常见的名词性从句,常用于引导一个完整的句子作为主语、宾语或表语。它由连词 "that" 引导,通常不充当句子中的成分,仅起到连接作用。"that从句"在语言表达中具有重要的逻辑和结构功能,广泛应用于书面和口语表达中。
以下是对 "that从句" 的总结与对比分析:
一、基本概念
项目 | 内容 |
定义 | 由 "that" 引导的名词性从句,用于充当主语、宾语或表语 |
功能 | 作主语、宾语、表语等 |
用法 | 常见于正式或书面语中,也可用于口语 |
省略情况 | 在某些情况下,"that" 可以省略(尤其在口语中) |
二、常见类型
类型 | 举例 | 说明 |
主语从句 | That he is late is known to everyone. | "That he is late" 作主语 |
宾语从句 | I believe that he is honest. | "that he is honest" 作宾语 |
表语从句 | The fact is that he didn't come. | "that he didn't come" 作表语 |
同位语从句 | The news that he won the prize surprised us. | "that he won the prize" 解释 "the news" |
三、使用注意事项
注意点 | 说明 |
"that" 不可省略的情况 | 当从句作主语时,"that" 一般不能省略 |
"that" 可省略的情况 | 在宾语从句中,若从句是简单句且不涉及复杂结构,"that" 可省略 |
与 "whether" / "if" 的区别 | "that" 引导的是陈述事实的从句;"whether" / "if" 引导的是疑问或选择性的从句 |
语序问题 | "that从句" 必须使用陈述语序,不能使用疑问语序 |
四、实际应用示例
句子 | 类型 | 说明 |
That she passed the exam is a surprise. | 主语从句 | "That she passed the exam" 作主语 |
He said that he would come. | 宾语从句 | "that he would come" 作 "said" 的宾语 |
The problem is that we don’t have enough time. | 表语从句 | "that we don’t have enough time" 作表语 |
The idea that we should go together is good. | 同位语从句 | "that we should go together" 解释 "the idea" |
五、小结
"that从句" 是英语语法中不可或缺的一部分,它能够帮助我们更清晰地表达复杂的思想和观点。虽然在口语中有时可以省略 "that",但在正式写作中,保留 "that" 更能体现语言的规范性和准确性。掌握 "that从句" 的用法,有助于提升英语表达的逻辑性和严谨性。