请教下句子结构The main function of the language-laboratory is to ta

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/05/19 15:06:16

请教下句子结构
The main function of the language-laboratory is to take over those aspects of the drill-work which are repetitive,mechanical,and do not absolutely require the presence of a live speaker,thus sparing the time and energy of this latter for more essential work.请帮忙分析下句子结构,重要的是其中的do not absolutely require the presence of a live speaker它的主语部分是什么?
我已经弄清了。句子应该这样划分（The main function of the language-laboratory是主语）（ is 谓语）（to take over those aspects of the drill-work表语）（ which are repetitive,mechanical定语从句修饰drill-work）,and（ do not和前面的is并列也是谓语）（absolutely require the presence of a live speaker是do not的宾语）,（thus sparing the time and energy of this latter for more essential work是结果状语从句）。希望大家分享知识！

从意思上看主语是the language-laboratory
但是显然句子语法错了因为根本找不到这个主语
louzhu你这样主语和谓语搭配没问题吗主语是function啊

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