题目
题型说明：测试 18.（2.0分）下列属于同位语从句的是（）。A. That he is a teacher is true.B. The truth is that he is a teacher.C. This is the truth that he is a teacher.D. I know that he is a teacher.
题型说明：测试 18.（2.0分）下列属于同位语从句的是（）。
A. That he is a teacher is true.
B. The truth is that he is a teacher.
C. This is the truth that he is a teacher.
D. I know that he is a teacher.
题目解答
答案
C. This is the truth that he is a teacher.
解析
同位语从句的特点是紧跟在名词之后，对名词的内容进行解释或补充，且从句中的that仅起引导作用，不作成分。本题需通过分析各选项中that从句的句法功能，判断其是否为同位语从句。
关键点：
- 同位语从句的结构：名词 + that从句（无系动词连接）。
- 排除干扰项：主语从句、表语从句、宾语从句的识别。
选项分析
A. That he is a teacher is true.
- 结构：
That he is a teacher是主语，is true是谓语。 - 结论：主语从句，排除。
B. The truth is that he is a teacher.
- 结构：
is是系动词，that he is a teacher是表语从句，说明truth的内容。 - 结论：表语从句，排除。
C. This is the truth that he is a teacher.
- 结构：
the truth是先行词，that he is a teacher直接修饰truth，无系动词连接。 - 结论：
that从句对truth进行同位解释，属于同位语从句。
D. I know that he is a teacher.
- 结构：
that he is a teacher是动词know的宾语。 - 结论：宾语从句，排除。