山东专升本英语语法知识点汇总？
发布日期：2022-07-27 作者：山东专升本 点击：
定语从句
1、引导定语从句的关系代词有：
that,which,who（宾格whom），所有格whose）和关系副词 where when why 等，关系代词或关系副词在定语从句中充当一个成分，关系代词that，which,who,whom等在从句中分别作主语或宾语，whose在从句中作定语，而关系副词when,where,why等在从句中作状语。
如：
I will never forget the days when/in which we worked together.
解析：在句①中，表示时间的名词the days在从句中充当的是状语，所以用关系副词when来代指，引导定语从句修饰先行词the days；而在句②中，表示时间的名词the days在从句中充当的是动词spent的宾语，所以用关系代词that或which来代指。
2、同样，表示地点或原因的名词如果在从句中作状语，则用关系副词where 或why来代指；如果在从句中作动词的宾语，则用which或that来代替。
如：
①This is the factory where/in which I worked.（作状语）
②This is the factory that/which I visited years ago.（作宾语）
注：当先行词为time,reason, place时，引导词可以省略。
如：
This was the first (when/what) I had serious trouble with my boss.
That is the reason (why) I did it.
This is the place (where) we met yesterday.
3、另外，定语从句中谓语动词的数应与先行词的数相一致。如：
①Mr. Jackson is the only foreigner that is present at the party.
②He is one of the students who were praised by the teacher.
解析：在句①中，先行词foreigner被only修饰，强调只有一个，所以从句中谓语动词用单数形式，而在句②中，who引导的定语从句修饰先行词the students，为复数，所以从句谓语动词应为复数。
