《Natural Disasters》Discovering Useful Structures PPT课件

《Natural Disasters》Discovering Useful Structures PPT课件

语法整体突破

一、定义

1.在主从复合句中，对某一名词或代词起修饰作用的从句叫定语从句。被修饰的名词或代词叫先行词，引导定语从句的词叫关系词。

2.关系词分为关系代词(that，which，who，whom，whose，as等)和关系副词(when，where，why等)两类。 

二、关系代词引导的定语从句

1.who引导的定语从句

[合作探究]　

The children who were injured in the car accident are being treated in the hospital now.

目前，在车祸中受伤的孩子们正在医院接受治疗。

Danny was the man who we rescued from the ruins.

丹尼是我们从废墟中救出来的那个人。

[自主发现1]　who指人，在定语从句中可以充当____________________。

2.whom引导的定语从句

[合作探究]　

Rose is the person (who/whom) you should care about.

罗丝是你应该关心的人。

The boy(whom) the teacher often praises is their monitor.

老师经常表扬的那个男孩是他们的班长。

[自主发现2]　whom指人，在定语从句中作____________，可省略，也可用____________代替。

3.whose引导的定语从句

[合作探究]　

I know the person whose house was destroyed in the earthquake.

我认识那个人，他的房子在地震中被摧毁了。

He lives in a room whose window faces north.他住在一个窗子朝北的房间里。

[自主发现3]　whose既可以指人，也可以指物，表示“所属”关系，whose在定语从句中作____________。

4.which引导的定语从句

[合作探究]　

The young man was very happy to get back the gold ring(which) he had lost on the train.那个年轻人领回了在火车上丢失的金戒指，非常高兴。

The little girl is having an apple which is big and red.

小女孩正在吃一个又大又红的苹果。

[自主发现4]　which指____________，在定语从句中作主语、宾语，作宾语时可省略。

5.that引导的定语从句

[合作探究]　

The number of people that/who come to visit this city each year reaches one million.

每年来参观这座城市的人数达100万。(that指人，作主语)

The suitcase that/which lies on the ground is hers.

地上放的那个手提箱是她的。(that指物，作主语)

[自主发现5]　that既可指人，也可指物，在定语从句中作_________________，作宾语时可以省略。习惯上指人多用____________替代，指物多用____________替代。 

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