Question

英语题请说明21

Answer 1

His salary as a bus driver is much higher than that of a teacher. 选A
句子结构分析：
His salary 句子主语
as a bus driver 主语补足语，用于说明、修饰主语
is系动词
is后面的内容都做句子的表语
much hihger than 比较级
that of a teacher 是比较的内容之一；从句子的意思中可以了解到比较的是作为公交司机的薪水和作为老师的薪水。老师的薪水用英文表达就是salary of a teacher, 由于句子前已经出现salary，英语里为了避免重复，用that代表salary，所以that of a teacher在该句中就表示老师的薪水。