英语语法从句分类？那么，英语语法从句分类？一起来了解一下吧。
主语从句：用作主语的从句叫主语从句。引导主语从句的关联词有从属连词、疑问代词、疑问副词、缩合连接代词、缩合连接副词等。例如：That he finished writing the composition in such a short time surprised us all. Whether we will go for an outing tomorrow remains unknown.
表语从句：用作表语的从句叫做表语从句。引导表语从句的关联词与引导主语从句的关联词很多都一样，有that，what，who，when，where，which，why，whether，how，whoever，whomever，whichever，whatever等，还有如because，as if，though等。例如：He has become a teacher.
宾语从句：在句子中起宾语作用的从句叫做宾语从句，宾语从句分为三类：
动词的宾语从句：例如I heard the news. （I是主语，heard是谓语动词，the news是名词作宾语，这里的news就是动词heard的宾语从句的内容）
介词的宾语从句：例如He said nothing about the plan. （He是主语，said是谓语动词，nothing是代词作动词的宾语，about是介词，the plan是名词作介词的宾语，plan就是介词about的宾语从句的相关内容）
形容词的宾语从句：例如某些有动词意义的形容词后的宾语从句
同位语从句：它的作用相当于名词，对前面的名词（短语）加以补充说明或进一步解释，相当于一个表语从句，它们之间的关系就是同位关系，即主表关系。其关联词多为that。例如：I heard the news that our team had won. I had no idea that you were here.
定语从句：其作用是作定语修饰主句的某个名词性成分。
引导定语从句的关联词有who，whom，whose，that，when，where，why和which。在非限制定语从句中，只可用which，who，whose，where，when，如果指代前面整个句子，多用which。例如：Those who are in favor of the proposal are expected to discuss it in detail after the meeting. There are many organizations whose purpose is to help the homeless. The only thing that matters to the children is how soon they can have their holiday. These are the very points that puzzle me.
as可做引导词引导定语从句，多和such，the same连用。As引导的定语从句也可修饰整个句子，既可放在先行词后，也可放在句子开头。例如
以上就是英语语法从句分类的全部内容。
