在现代汉语中“是字句”是使用频率很高的一种句式。这种句子,通常用来表示肯定判断,如:“鲁迅是中国文化革命的主将。”在教学中,我们亦经常遇到一些句子,虽然也用了“是”,但并不表判断,且用法各异,现分六类例说之。 In modern Chinese, the “word sentence” is a sentence pattern that is used frequently. This kind of sentence is usually used to express affirmative judgments, such as: “Lu Xun is the master of the Chinese cultural revolution.” In teaching, we often encounter some sentences. Although we use “Yes,” we do not express judgments, and Different usages are divided into six categories.