9.高一英语(人教新课标)定语从句教案!由刀豆文库小编整理，希望给你工作、学习、生活带来方便，猜你可能喜欢“高一英语定语从句学案”。
定语从句（2）难点分析
限制性定语从句只能用that的几种情况
(1)Can you remember the scientist and his theory that we have learned?
你能记住我们学过的科学家和他的理论吗？
由that引导的定语从句中，that可以指人或物，在从句中作主语或谓语动词的宾语，但不能放在介词后面作介词宾语。
如：The book that I bought yesterday was written by Lu Xun.
注意在下面几种情况下必须用that引导定语从句：
(1)先行词是不定代词all, few, little, much, something, nothing, anything等，如：All that we have to do is to practice English.我们所要做的就是练习英语。
(2)先行词被序数词或形容词最高级所修饰，如：The first letter that I got from him will be kept.第一封他给我写的信会被保存下来。
(3)先行词被all, any, every, each, few, little, no, some等修饰，如：I’ve eaten up all the food that you gave me.我已经把你给我的所有食物吃光了。
(4)先行词被the only, the very, the same, the last修饰时，如：He is the only person that I want to talk with.他是唯一一个我想和他说话的人。
(5)先行词既有人又有物时，如：They talked about persons and things that they met.他们谈论了所见的人和事物。
(6)当句中已有who或者which时，为避免重复，如：Who is the man that is giving us the cla? 谁将是给我们上课的人？
(7)在there + be 的句型中，句子的主语是先行词，而且又是物，如：There are two novels that I want to read.这有两本我想读的小说。
There is no work that can be done now.没有什么工作现在能做的了。
(8)当先行词为主句的表语或者关系代词为从句的表语时，如：This is the book that was bought yesterday.这就是昨天买的书。
Our school is no longer the school that it used to be.我们的学校不再是以前的学校了。
(9)以Here is(are)开头的句子时，如：Here is a film that will move anyone.这是一部将使所有人感动的电影。
Here are two books that I will buy.这是我要买的两本书。
(10)It is(high)time +定语从句，如：It is time that we should have a rest.我们应该休息了。
It is high time that they started out.他们该动身了。
只用which的场合如下：
1)非限制性定语从句中
Last night, I saw a very good film, which was about the Long March.昨天晚上，我看了一部好电影，是一部关于长征的电影。
2）介词放在关系代词之前时 This is my house of which the roof is red.这个房子屋顶是红色的。
3）句中出现了that，或先行词是that时
I have found that which I was looking for.我已经找到了我一直寻觅的东西。
区分定语从句和同位语从句
1．定语从句修饰先行词，它和先行词是修饰关系；
同位语从句说明先行词的具体内容，是补充说明的关系。
(1)The plane that has just taken off is for London.定语从句
(2)The fact that he has been dead is clear.同位语从句
2.定语从句由关系代词或者关系副词引导，关系词在句中充当成分，有时可以省略；
同位语从句主要由that引导，在句中一般不做成分；
句子也可以由when, where, how, why, whether, what等词引导，充当成分。
(1)The news he told me is true.定语
(2)The news that he has just died is true.同位
(3)The problem that we are facing now is how we can collect so much money.定语
(4)The problem how we can collect so much money is difficult to solve.同位
3.同位语从句和先行词一般可以用be动词发展成一个完整的句子，而定语从句不可以。
(1)The idea that we could ask the teacher for advice is wonderful.同位语
(2)The idea was that we could ask the teacher for advice.(3)The fact that the earth moves around the earth is known to all.(4)The fact is that the earth moves around the earth.限制性定语从句和非限制性定语从句非限制性定语从
(1)限制性定语从句是句中不可缺少的组成部分，主句和从句之间不用逗号分开。引导
句的关系代词有who, whom, whose, which, of which等，这些关系代词都不能省略。
(2)非限制性定语从句是对主句先行词的补充说明，没有这种从句，不影响主句意思的完整，一般用逗
号把主句和从句分开，关系代词用which，不用that；指人时可用who。
如：I have two brothers，who are both students.关系代词as和which引导的定语从句
as和which引导非限制性定语从句，有相同之处也有不同之处。具体情况是：
1.as和which都可以在定语从句中做主语或者宾语，代表前面整个句子。
(1)He married her, as/which was natural.(2)He was honest, as/which we can see.2.as 引导非限制性定语从句，可放在主句之前，或者主句之后，甚至可以切割一个主句； which引导的非限制性定语从句只能放在主句之后。另外，as有“正如„„，正像„„ ” 的意思。
(1)As is known to all, China is a developing country.(2)He is from the south, as we can see from his accent.(3)John, as you know, is a famous writer.(4)He has been to Paris more than several times, which I don’t believe.注意：当主句和从句存在逻辑上的因果关系时，常用which。
(5)Tom was always late for school, which made his teacher angry.3.当先行词受such, the same修饰时，常用as。
(1)I have never heard such a story as he tells.(2)He is not such a fool as he looks.(3)This is the same book as I lost last week.注意：当先行词由the same修饰时，偶尔也用that引导定语从句，但是和由as所引导的定语从
句意思不同。
(4)She wore the same dre that she wore at Mary’s wedding.她穿着她在玛丽婚礼上穿过的一条裙子。
(5)She wore the same dre as her young sister wore.她穿着和她妹妹所穿的一样的裙子。
非限定性定语从句几个注意的地方
1.which引导的非限定性定语从句来说明前面整个句子的情况或主句的某一部分。
2.在引导限定性定语从句时，that有时相当于in which, at which, for which或at which。
Attitudes towards daydreaming are changing in much the same way that(in which)
attitudes towards night dreaming have changed.人们对白日做梦的态度正在改变，这与人们对
夜间做梦的看法的变化有非常相似之处。
I like the music for the very reason that(for which)he dislike it.我出于某种原因喜欢这种音乐，而他恰恰与我相反。
We arrived the day that(on which)they left.刚好我们到的那天他们走了。
3.有时as也可用作关系代词
4.在非限定性定语从句中，不能用that，而用who, whom代表人，用which代表事物.as 的用法例
1.the same„ as；such„as 中的as 是一种固定结构, 和„„一样„„。
I have got into the same trouble as he(has).2.as可引导非限制性从句，常带有“正如”。
1）As we know, smoking is harmful to one's health.2）As is known, smoking is harmful to one's health.as是关系代词。1中的as作know的宾语；
2中，它充当从句的主语，谓语动词know要用被动式。
以the way为先行词的定语从句通常由in which, that引导，而且通常可以省略。
e.g.The way in which/ that/不填 he answered the question was surprising.他回答问题的方式很惊人。
but有时也可以做关系词引导定语从句
e.g.There are very few but understand his idea.(but = who don’t)
没有几个不懂他意思的人。
