怎样教学生将两个简单句合并为一个定语从句

1.

简单句变成定语从句 怎样把简单句改成定语从句

找出两个句中指同一个的人或物的名词

2.

用关系代词把其中一个名词替代（介词+名词：就用关系副词）

3.

把有关系代词中的句子放在另一个名词后。

4.

注意句子意义得合逻辑。

如：the

man

is

my

teacher.

the

man

is

talking.

the

man

is

my

teacher.

who

is

talking.

the

man

who

is

talking

is

my

teacher.

把两个简单句怎样合并成一个定语从句？

方法：用骨干句子做主句,放在前面,然后用另一个句子做定语从句,修饰句子的主语或者宾语.,5,

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She is the tallest girl in her class .she can play the violion(合成一句）为什么？ She ,who can play the violin ,is the tallest girl in her class,在被修饰的名词或代词后面加连接代词或连接副词 that which 等,2,一般加that引导,1,例如 ①I am a boy . ②I like playing.

I am a boy who likes playing.

就是这么简单,0,that what,0,

简单句变定语从句

that即可代表事物也可代表人，which代表事物；它们在从句中作主语或宾语，that在从句中作宾语时常可省略关系词，which在从句中作宾语则不能省略。而且，如果which在从句中作“不及物动词＋介词”的介词的宾语，注意介词不要丢掉，而且介词总是放在关系代词which的前边，但有的则放在它原来的位置 who和whom引导的从句用来修饰人，分别作从句中的主语和宾语，whom作宾语时，要注意它可以作动词的宾语也可以作介词的宾语 关系代词引导的定语从句

1.who指人，在从句中做主语

(1) The boys who are playing football are from Class One.

(2) Yesterday I helped an old man who lost his way.

2. whom指人，在定语从句中充当宾语，常可省略。

(1) Mr. Liu is the person (whom) you talked about on the bus.

(2) Mr. Ling is just the boy whom I want to see.

注意：关系代词whom在口语和非正式语体中常用who代替，可省略。 that指人时，相当于who或者whom；指物时，相当于which。

在定语从句中做主语或者宾语，做宾语时可省略。that前不能有介词。 判断关系代词与关系副词

方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如：

This is the mountain village where I stayed last year.

I'll never forget the days when I worked together with you.

判断改错（注：先显示题，再显示答案，横线；用不同的颜色表示出。）

（错） This is the mountain village where I visited last year.

（错） I will never forget the days when I spent in the countryside.

（对） This is the mountain village (which) I visited last year.

（对） I'll never forget the days (which) I spent in the countryside.

习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。

方法二： 准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。例1. Is this museum ___ you visited a few days age?

A. where B. that C. on which D. the one

例2. Is this the museum ____ the exhibition was held.

A. where B. that C. on which D. the one答案：

例1 D，例2 A

例1变为肯定句： This museum is ___ you visited a few days ago.例2变为肯定句： This is the museum ___ the exhibition was held.

在句1中，所缺部分为宾语，而where, that, on which都不能起到宾语的作用，只有the one既做了主句的表语，又可做从句的宾语，可以省略关系代词，所以应选D。

而句2中, 主、谓、宾俱全，从句部分为句子的状语表地点，既可用副词where，又因 in the museum词组，可用介词in + which 引导地点状语。而此题中，介词on 用的不对，所以选A。

关系词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词 (who, whom, that, which, whose)；

先行词在从句中做状语时，应选择关系副词 ( where 地点状语，when 时间状语，why 原因状语) 。

关系代词that 的用法

(1)不用that的情况

(a) 在引导非限定性定语从句时。

(错)The tree, that is four hundred years old, Is very famous here.

(b) 介词后不能用。

We depend on the land from which we get our food.

We depend on the land that/which we get our food from.

(2) 只能用that作为定语从句的关系代词的情况

(a) 在there be 句型中，只用that，不用which。

(b) 在不定代词，如：anything, nothing, the one, all, much, few, any, little等作先行词时，只用that，不用which。

(c) 先行词有the only, the very,the same,the last,just修饰时，只用that。

(d) 先行词为序数词、数词、形容词最高级时，只用that。.

(e) 先行词既有人，又有物时。

(f) 先行词指物，在主句中作表语时．

(g) 为了避免重复．

(h)先行词是the way时

举例：

Is this the book that you borrowed in the library?

这是你在图书馆借的那本书吗？

Who that break the window should be punished．

谁打碎了窗户都要受到惩罚．

All that is needed is a supply of oil.

所需的只是供油问题。

Finally, the thief handed everything that he had stolen to the police.

那贼最终把偷的全部东西交给了警察。 限制性定语从句只能用that的几种情况

1．当先行词是anything, everything, nothing (something 除外), few, all, none, little, some等代词时，或者是由every, any, all, some, no, little, few, much等修饰时

(1) Have you taken down everything that Mr. Li has said?

(2) There seems to be nothing that seems impossible for him in the world.

(3) All that can be done has been done.

(4) There is little that I can do for you.

注意：当先行词指人时，偶尔也可以用who

(4) Any man that/.who has a sense of duty won’t do such a thing.

2. 当先行词被序数词修饰

(1) The first place that they visited in London was the Big Ben.

3. 当先行词被形容词最高级修饰时

(1) This is the best film that I have seen.

4. 当形容词被the very, the only 修饰时

(1) This is the very good dictionary that I want to buy,

(2) After the fire in his house, the old car is the only thing that he owned.

当先行词指人时，偶尔也可以用who

(3) Wang Hua is the only person in our school who will attend the meeting？

5. 当先行词前面有who, which等疑问代词时

(1) Who is the man that is standing there?

(2) Which is the T-shirt that fits me most?

6. 当先行词既有人，也有动物或者物体时

(1) Can you remember the scientist and his theory that we have learned?

写一个简单句并将一简单句变成4种形式的定语从句

I admire the man.

i admire the man who works very hard as a teacher.

i admire the man whose brother is one of my classmates.

i admrie the man who you were just talking about.

i admre the man who is world-famous for his great works.

this is the park.

this is the park where i first met him.

this is the park which is being rebuilt now.

this is the park that i used to visit when i was a child.

this is the park where the incident happened last week.

The boy is my classmate.

The boy who is singing in the next room is my classmate.

The boy is my classmate whose name is Yao Ming.

The boy that you told me yesterday is my classmate.

The boy who gave a talk to all of you yesterday is my classmate

怎么把两个简单句合为定语从句

例如：

This is a nice place. We used to live in this place.

改成定语复合句：

This us the place where we used to live.

把两个简单句改为定语从句

只要把定语从句的引导词换成相应的人称代词或表示地点、时间的单词即可。如：

this

is

the

book

whose

cover

is

red.----this

is

the

book.

its

cover

is

red.

如何把两个简单的句子转换成定语从句

所谓定语从句,就是有个句子要做定语,只需要把作定语的句子改成像形容词一样修饰名词的短语就好啦（可以当做形容词,就是这个形容词比较长）

举例：

i have a pen.

i bought the pen yesterday.

=i have a pen which/that was bought yesterday.

我的钢笔是昨天买的.（“昨天买的”当做定语,修饰钢笔.）

i have a sister.

my sister's name is Lily.

=i have a sister whose name is Lily.

我的姐姐叫莉莉.（“名字叫莉莉”做“姐姐”的定语.）

以此类推~

其实定语从句挺简单的了,但要分清that,which,what,who等的用法限制就好了~