题目

the following is a list of information that is required for AST tanks.is required for是系表结构吗

提问时间：2021-10-13

答案

is required for 不是系表结构,是被动
that 是以information 的先行词的定语从句,在从句中做主语,就是指代information
就是information is required (for sth)( by sb)
information is required (to do sth) (by sb)
信息自己不能要求,只能别人要求信息怎么样,因此是被动
人们要求信息如何.是谁要求,根本不重要,因此省略了by sb
跟名词就是for sth
跟动词就用不定式to do sth
这个不是类似be connected to sth 的系表结构
类比这个句子：
李老师要学生打扫教室
mr li required students to clean the classroom
the students are required to clean the classroom
李老师对学生们的着装,提出了要求
the students are required for dressing (by mr li)