高中英语定语从句的相关介绍
高中英语定语从句的相关介绍
在英语中，学生会学习到从句，下面是学习啦小编给大家带来的有关于定语从句的介绍，希望能够帮助到大家。
高中英语定语从句的介绍
(一)基本概念
1.由一个句子作定语，修饰句中一个名词或代词，有时也可以修饰整个句子或句中的部分内容，这样的从句就是定语从句，被其修饰的名词或代词叫先行词。
2.关系词分为两大类，即关系代词和关系副词，其作用一是引出一个定语从句，二是代替其所修饰的先行词，三是在句中充当某个句子成分。
关系词的分类和基本用法
表一
分类指代引导词
关系代词人who, whom, that, as
事物which, that, as
人或物(表所属关系)Whose
关系副词地点Where
时间When
原因Why
表二
关系代词指代例句解释
who人The man who helped you is Mr White.在定从中作主语
whomThat is the person(whom/who/that) you want to see.在定从中作宾语，可省略
whoseHe is the father whose son studies very well in our class.在定从中作定语
thatI´m not the fool that you thought me to be.在定从中作表语
asHe is such a lazy man as nobody wants to work with.在定从中作宾语
that事物The only thing that we can do is to give you some advice.在定从中作宾语
whichA dictionary is a useful book which tells us the meaning of words在定从中作主语
whoseHe lives in a room whose window faces south在定从中作定语
asIt is such a big stone as nobody can lift.在定从中作宾语
整句内容As is known to all, he is the best student.在定从中作主语
表三
关系副词指代例句解释
when时间Would you suggest a time when we can have a talk?在定从中作状语
where地点The house where they live is not very large.在定从中作状语
why原因This is the reason why he did not came to the meeting.在定从中作状语
高中英语的时态用法的介绍
1. 将来完成时的基本用法
表示到将来某个时间为止势必会完成或预计要完成的动作，由will [shall]+have+过去分词构成：
He will have arrived by now. 他现在应当已经到了。
He will have gone back to England.他想必回英国去了。
When we get there，shell have gone to work. 我们到那里时她会已上班去了。
On Monday hell have been in Britain for three years. 到星期一，他在英国就满三年了。
2. 现在完成时、过去完成时与将来完成的区别
现在完成时以现在时间为参照点，表示在现在以前完成的动作或持续到现在的状态，过去完成时则以过去时间为参照点，表示在过去某一时间以前发生的动作或持续到过去某一时间的状态，将来完成时则以将来时间为参照点，表示在将来某一时间为止已经完成的动作或持续到将来某一时间的状态：
He has finished writing his novel. 他已写完了他的小说。
He had finished writing his novel by the end of last year. 去年年底他就写完他的小说。
He will have finished writing his novel by the end of next year. 到明年年底他就会写完他的小说了。
与一般现在时代替一般将来时一样，在表示时间或者条件的状语从句，通常要用现在完成时来表示将来完成时，而不能直接使用将来完成时：
I will go with you when I have finished my work. 等我完成工作之后我就同你去。
若不强调动作的完成(且不致于引起歧义)，有时也可用一般现在时：
I will go with you when I finish my work. 我完成工作后就同你去。
猜你感兴趣：