这段文字是节选Cambridge British Grammar Dictionary
This, that, these, those 的用法:
we can use “this” to refer back to whole clauses and sentences and to previous parts of a text. “This” highlights the information referred to much more strongly than “it”. writers often use “this” when a point or idea is to become an important part of the discussion that follows:[…] 这段解释是关于 this,it和that 做指示代词在段落中的不同效用的一段文字。 我刚刚熟悉一些语法中的比较级结构。就我所了解,这段文字中的这句话“This” highlights the information refer to much more strongly than “it”. 最后的it 是否加一个动词的助动词形态代替此及物动词为宜。还是说,老外就这中比较结构在不影响大意的情况下选择省略。又或者是我语法结构学习有误导致理解错误,往指正。