内容正文:
必修Book 1 Unit 4 Natural Disasters
Period 3 Discovering Useful Structures
01
预习导学
读下列教材原句并感知黑体部分的共性。
1.It a real sport,
2.That interesting,
3.Hi! It' a beautiful day,
4.By the way, our school soccer team at last,
5.The Sports Day coming soon,
我的发现:附加疑问句由两部分组成,前一部分是一个(1) ,后一部分是一个简短的(2) 。前后两部分的人称和动词(3) 要保持一致,并遵循“前肯定后否定,(4) ”的原则。
02
课堂探究
在复合句中,修饰某一名词、代词或整个主句的从句叫作定语从句。
定语从句是用来充当句中定语的从句,它主要用于修饰句子中的名词、代词,其位置位于被修饰的名词、代词之后。在被修饰的名词、代词与定语从句之间往往有一个关系词将其前后两部分联系成一个整体,关系词分为两种:关系代词和关系副词。常见的关系代词有:that,which,who,whom和whose。
探究点1: 关系代词的基本用法
1.指人用who, whom, that; 作主语时用who,that,且不可省略;作宾语时可用who,whom,that,且可以省略。
You may have chances to meet new people who/that will become your lifelong friends. 你可能有机会结识将成为你一生的朋友的新人。(指人,作主语)
In the dark street, there wasn't a single person (whom) she could turn to for help.在黑暗的街道上,没有一个她可以求助的人。(指人,作宾语)
2.指物用which,that; 作主语时不可省略;作宾语时可以省略。
I can well remember the accident that happened on a rainy Sunday afternoon.我清楚地记得在一个下雨的星期天下午发生的那场事故。(指物,作主语)
The dictionary (which/that) I bought last week is very useful and handy.我上周买的字典很有用。(指物,作宾语)
3.whose既可指人,也可指物。在从句中作定语,whose+n.相当于the+n.+of whom/which。
This is the scientist whose name(=the name of whom) is known all over the country.这就是那位闻名全国的科学家。
Nobody wants the house whose roof(=the roof of which) has fallen in.没有人想要这个屋顶已坍塌的房子。
4.在从句中作介词的宾语且直接跟在介词后时,指人用whom,不用who。指物用which, 不用that。
He is a man from whom we are all ready to learn.他是我们大家都愿意学习的人。(作介词宾语,指人用whom)
The house in which George used to live is for rent now.乔治曾经住过的那所房子现在正在出租。(作介词宾语,指物用which)
【活学活用】用关系代词填空
(1)On the edge of the jacket, there is a piece of cloth gives off light in the dark.在夹克的边缘,有一块可以在黑暗中发光的布。
(2)Because of our efforts, our daughter Georgia decided to donate a