关系代词是高一阶段学习的重要语法知识点。同学们也许已经注意到,有些句子中的关系代词可以被省略,而有些则必须保留。下面我们就来了解一下关系代词的省略与保留。关系代词包括who、whom、whose、which、that、as等,在句子中引导定语从句,同时也在这些从句中担任着主语或宾语的角色。在某些情况下,它们必须出现;而在另一些情况下,则可以省略它们, Relevant pronouns are the important grammatical points of knowledge in the first phase of high school. Students may have noticed that some pronouns in some sentences can be omitted while others have to be kept. Let’s take a look at the omission and reservation of the relation pronoun. The relational pronouns include who, whom, whose, that, as, etc., that guide the attributive clause in the sentence and also act as the subject or object in these clauses. In some cases, they must appear; in others, they can be omitted,