人教版版高中英语必修二重点语法汇总Unit 1: 限制性定语从句和非限制性定语从句定语从句可分为限制性定语从句和非限制性定语从句。
限制性定语从句是指如果一个句子去掉定语从句后，主句的意思不是所要表明的意思，那么这个定语从句就是限制性定语从句。
非限制性定语从句则不用限制先行词。
最大的特点就是先行词后面有逗号隔开。
例如：XXX should be punished.XXX who breaks the rules should be punished.在第二个句子中，如果去掉定语从句，“Anyone should be punished”这个句子的意思就不完整了，因此这是一个限制性定语从句。
例如：She is good at speaking French。
XXX.This book was written by Jack。
who was here a moment ago.I have some friends。
XXX.这些句子中的定语从句都是非限制性定语从句。
限制性定语从句的连接词可以用who、whom或whose、which，但不能用that，也不能省略。
例如：She had eight children。
three of XXX.XXX is a Japanese。
whose wife is a Chinese.My sister。
who is a nurse。
got married last month.China has hundreds of islands。
the largest of which is XXX.非限制性定语从句还可以用when或where引导。
例如：She is going to Shanghai。
where she was born.We will go home next week。
when we won’t be so busy.除了前面提到的那些连接词以外，在以下两种情况下还可以用as作为定语从句的连接词：1.当先行词在从句中做主语或者宾语的时候，同时先行词又被same、so或者such修饰的时候。
2.非限制性定语从句除了可以修饰词以外，还可以修饰前面整个句子。
They kindly invited me to their party.XXX.The news of a student XXX.People like you are not good.Let's only discuss topics that interest all of us.I have the same issue as you.I feel the same way as you do.XXX I like very much.XXX he asked were so difficult.In non-restrictive relative clauses。
"as" and "which" can represent the entire main clause。
meaning "and this" or "and that." "As" is generally used at the beginning of the sentence。
while "which" is used in the middle.As we all know。
XXX.XXX。
XXX.The difference een restrictive and non-restrictive XXX。
and includes XXX "that," "which," "whom," "who," "whose," as wellas relative adverbs like "when," "where," and "why," without a comma separating the XXX are essential to the meaning of the main clause。
XXX.Do you know XXX?Where is the book that I bought this morning?她教我们英语的姐姐明年将出国。
(非限制性定语从句，意思是她只有一个姐姐。
)另外，还有一类非限制性定语从句，它是先行词的附加说明，去掉也不会影响主句的意思。
通常用逗号与主句隔开。
虽然用法与限制性定语从句相似，但不能用that引导。
这些信来自他们在西藏工作的父母。
英语是一门重要的科目，每个学生都应该好好研究。
我认为我们的校长有一些重要的事情要告诉你，他就在这里。
限制性定语从句与先行词紧密相连，不需要逗号隔开。
而非限制性定语从句与先行词之间必须用逗号隔开。
昨天来看我的XXX先生是我的一位好朋友。
(非限制性定语从句)这就是那位有30年教龄的老师，你想见的那个人。
(限制性定语从句)限制性定语从句用来修饰先行词，具有限制作用，两者关系紧密。
如果将其去掉，句子意思会不完整，甚至引起误解。
而非限制性定语从句仅仅对先行词作补充性说明，不起限制作用，两者关系不那么紧密，可以省略，省略后主句的意思仍然完整。
她教我们英语的姐姐明年将出国。
(限制性定语从句，意思是她可能还有别的姐姐。
)她教我们英语的姐姐，明年将出国。
(非限制性定语从句，意思是她只有一个姐姐。
)Her sister。
who will be going abroad next year。
teaches us English。
(非限制性定语从句，对先行词her sister起到补充说明的作用，言外之意：她只有一个姐姐。
)The old man has a son who is in the army。
("那位老人有一个在部队工作的儿子。
”限定性定语从句就要对先行词son进行限定、修饰。
“这位老人有一个儿子在部队工作”，也就是说可能老人还有其他的儿子在干别的工作。
)This is the house that we bought last year。
这是我们去年买的那幢房子。
（限制性）The house we bought last month is very nice。
这幢房子很漂亮，是我们上个月买的。
(非限制性)XXX who are kind are popular with the students。
态度和蔼的老师们受学生的欢迎。
（限制性）Mr。
Wang。
who is kind。
is popular with the students。
XXX深受学生的欢迎，他态度和蔼。
(非限制性)This notebook was left by Tom。
who was here a moment ago。
这个笔记本是XXX留下的，刚才他还在这里。
限制性定语从句的先行词只能是一个名词或代词；非限制性定语从句的关系代词which既可以指代前面的先行词，也可以指代前面整句的含义。
指代前面整句的含义时，定语从句谓语动词要用第三人称单数。
The novel is very interesting。
XXX.She heard a XXX。
causing her heart to race.XXX。
which is very frustrating.Note: When XXX such as a name。
place。
country。
or building。
a non-restrictive relative clause should be used.The moon。
which is 384,400 XXX。
orbits around it.XXX。
he left America。
where he had stayed for two years.5.Regarding the use of relative pronouns:That" and "why" cannot be used to introduce non-restrictive XXX Instead。
"which" should be used for "that" and "for which" should be used for "why."In restrictive relative clauses。
"which" and "that" are used for things。
while "who," "whom," "that," and "whose" can be used for people.We don't know how many people lost their homes in the 1906 XXX.In non-restrictive relative clauses。
"who" and "whom" are used for people。
while "which" is used for things。
"Whose" can be used for both people and things.XXX。
XXX。
XXX.我递给他一杯大杯的威士忌，他立刻喝了下去。
My sister XXX now a successful physician.The room belongs to him and its window XXX.He will have to wait until next month when everything is ready.Can you tell me why he was absent yesterday?XXX。
XXX and had to spend several hours in the hospital.XXX。
where he was buried in 1977.This is the boy who I met at the theatre.The young man had a new XXX.I passed him a large glass of whisky。
