在现代汉语单句中 ,作为特殊句式的把字句、被字句、存现句、兼语句、连动句、“是”字句在结构上或在意义表达上与一般的主谓句不同。“是”字句通常是以“是”为标志 ,表示肯定或否定判断 ,因而也称判断句。“是”字句中主语和宾语之间的关系应为同一关系或从属关系。①韩寒? In the modern Chinese single sentence, as a special sentence pattern, the sentence sentence, the sentence sentence, the existing sentence, the concurrent sentence, the joint action sentence, and the “Yes” sentence sentence are different from the general subject-predicate sentence in terms of structure or expression of meaning. The “Yes” sentence is usually marked with “Yes”, which means affirmative or negative judgment. Therefore, it is also called judgment sentence. The relationship between the subject and the object in the “is” sentence should be the same relationship or subordination. 1 Han Han?