(共35张PPT)
Unit 1 Science and Scientists
1. Enable the Ss to master the usage of predicative in this unit.
2. Enable the Ss to use the predicative patterns flexibly.
3. Train the Ss to apply some skills by doing the relevant exercises.
Teaching Goals
01
Subject Clause (主语从句)
Object Clause (宾语从句)
Predicative Clause (表语从句)
Appositive Clause (同位语从句)
Noun clause
名词性从句:
名词性从句在功能上相当于名词
表语
This is his job.
This is what he does every day.
宾语
I don’t like his job.
I don’t like what he does every day.
Who will win the match is still unknown.
I want to know what he has told you.
The fact is that we have lost the game.
The news that we won the game is exciting.
主语从句
宾语从句
表语从句
同位语从句
名词性从句的分类
1. How to judge whether it is a predicative clause
主要依据:系动词后
The problem is difficult.
The problem is that he can not speak English.
Sth
表语从句的定义
PART
01
一个句子在复合句中充当表语就叫表语从句. 表语从句放在连系动词后,如:be,seem, remain等,有时用 as if 引导。
e.g. The problem is that I am short of money.
China is no longer what she used to be.
The question is how we can get there.
It looks as if it is going to rain.
表语从句
主语 + 系动词 + that从句
表语从句
放在is/was后面的句子, “是……”
The problem is difficult.
The problem is that he can not speak English.
Sth.
表语从句
表语从句的判断
The judgment of the predicative clause
系动词后的成分为表语。系动词后的从句为表语从句
系动词主要是be动词(am, is, are, was, were),意为“是”
连系动词
状态类: be动词, seem, appear, keep, remain, stay…
变化类: become, get, turn, grow, fall, come, go …
感官类: look, smell, taste, sound, feel …
表语从句的引导词
PART
02
连词
that, whether, as if, as though, because....
连接代词
what/whatever, which/whichever, who/whoever
whom, whose...
连接副词
when, where, why, how...
表语从句的引导词
Conjunction words
引导词 用法
从属连词 that “无名无分”
whether “有名无分”, 名为“是否”
连接代词 what, which, who, whom, wh+ever, whose 充当主语,宾语,表语,定语
连接副词 how, when, where, …+ ever, why 充当状语
其它连接词 because, as if/though 因为; 好像,似乎
1. 连接代词 Conjunction words
连接代词: what, which, who, whom, wh+ever, whose
That’s what makes you beautiful.
What makes us curious is what led to the victory.
That’s what he is worrying about.
what可以做________,___意义,意为“_____”
主语
主语
宾语
主语和宾语
有
什么
2. 连接副词:
why, how, when, where, ...+ ever
He failed in the exam. That's why he felt frustrated.
That is why he was late for class again.
I had neither a raincoat nor an umbrella.That’s why I got wet through.
why可以做_____,___意义,意为“_____”
状语
有
为什么
状语
状语
状语
3.其他连词(词组)引导的表语从句
(1)because引导的表语从句:
This/That/It is/was because…
That's because we never thought of it.
She hasn’t come, this is because she is ill.
(2) as if/though引导的表语从句:常置于感官系动词look, seem, sound等后面,常用虚拟语气。
It looks as if he were her father.
1. 表语从句的【特殊句式】
The reason why.... is that.... “...的原因是...”
The reason is that... “原因是...”
The reason ________ I like English is ________ it brings me happiness.
The reason is ________ English brings me joy.
做运动很重要,那是因为它能增强我们的体质。
Doing exercise plays an important role in our life. That is because it can build up our body.
This/That is because ....
这/那是因为......
我们要做运动的原因是因为它能强壮我们的身体。
The reason why we should do exercise is that it can build up our body.
The reason why.... is that.....
The reason for......is that.....
....的原因是......
作文中替换because的句式:
The reason why...is/was that...
……的原因是……
This is why...
这就是……的原因(强调结果)
This is because...
这是因为……(强调原因)
我们要做运动的原因是因为它能强壮我们的身体。
The reason why we should do exercise is that it can build up our body.
The reason why.... is that.....
The reason for......is that.....
....的原因是......
做运动很重要,那是因为它能增强我们的体质。
Doing exercise plays an important role in our life. That is because it can build up our body.
This/That is because ....
这/那是因为......
一句多译 (替换because):
她越来越胖的原因是吃太多的垃圾食品。
③She is becoming fatter and fatter.This is ___________ she eats too much junk food.
④She eats too much junk food. That's _______ she is becoming fatter and fatter.
⑤__________________________________________________________________ she eats too much junk food.
because
why
The reason why she is becoming fatter
and fatter is that
2. 表语从句中的【虚拟语气】
主语是表示“建议”“命令”“要求”的名词,表语从句应使用虚拟语气,即:(should) +动词原形
建议: suggestion, advice,proposal,idea
命令: order, command,
要求: request,requirement
3. as if/as though引导表语从句的【两种语气】
1.若表陈述语气,就用陈述语气;
2.若与客观事实不符,就用虚拟语气;
若跟现在事实不符:过去式(be动词用were)
若跟过去事实不符:had done
若跟将来事实不符:would/could+动词原形
Attention:
1. 表语从句中的时态不受主句的限制.
2. 表语从句是不用 if 引导的,要用whether.
3. 主语是reason时,表语从句常用that,
不用because.
The reason for his absence was that he was ill.
表语从句的语法规则
The grammar rulers of the predicative clause
The question is how can I make you understand the knowledge.
The question is how I can make you understand the knowledge.
Rule 1 : 表语从句和宾语从句、主语从句一样,要用陈述语序:主语+谓语。
注意
注意
2、表语从句的引导词没有if!
只用whether, 不用if的情况。
(1)whether to do
(2)whether... or not...
(3)介词后的宾语从句。(介词后不用if)
(4)从句:句首的主语从句,宾语从句,同位语从句。
(if不能位于句)
解题思路
先根据句意选择
不充当成分 that,whether, as if/though,because 连词
充当状语 when,where,why,how 连接副词
充当定语 whose,what,which 连接代词
充当主语,宾语,表语 其他
再分析“充不充当句子成分”
表语从句要点归纳
1. 表语从句一定要用陈述语序。
e.g. One advantage of playing the guitar is that it can give you a great deal of pleasure.
2. that引导表语从句时, 在句中只起连接作用, 不充当句子成分, 无实际意义, 一般不能省略。
e.g. The trouble is that I have lost his address.
3. whether引导表语从句时,起连接作用,意为“是否,空间,到底”,在句中不作任何成分。
if不能引导表语从句。
e.g. The question is whether your uncle will offer help to us.
David is talking to Maria about their scientific research project. First complete David's lines (A-E, using the words in the box. Then put David's lines in the correct order and practice the conversation.
A: Absolutely ! You may not believe it, but that was ___________happened at the initial stage of our group's research on developing a vaccine for malaria.
B:Yes, it is. And it seemed_______________all the theories were useful, but the fact was_________we couldn't persuade one another that one theory was better than another.
C:Exactly The problem was not about______________all our theories were equally good, but in deciding.____________theory to depend upon.
D:We realised that what we cared about was not_______________aspect we needed to develop a theory in, but rather _________________we can reduce the cost of a vaccine without reducing its effect!
E: You're right. At last, we became focused on the key issue, which was ___________we had to Cary out the research in the first place.
as if that what who when How why whose which whether
what
as if
that
whether
whose
which
how
why
David is talking to Maria about their scientific research project. First complete David's lines (A-E, using the words in the box. Then put David's lines in the correct order and practice the conversation.
Maria: This mix of theory and data is one of the key characteristics of what we call science.
David:__A_____
Maria: With your theoretical framework
David:__________________
Maria: Deciding on a theory is definitely of critical importance.
David:_________________
Maria This was when you should have calmed down and got down to doing some sold work.
David:_________________
Maria: So what happened in the end
David:__________________
B
C
E
D
when
where
why
how
what/whatever
which/whichever
who/whoever
whom,whose...
that,whether
as if/as though
because
Summary
即学即练
learning and practice
This is __________I want.
My English is limited. This is _______I hate reading English books.
The village is _________ I used to spend my holiday.
It is ___________ I really love the way he behaves.
The trouble is __________ we are short of funds.
My problem is __________ coat is suitable for me.
I ‘ d like to start my own business—that’s ________ I want to do if I had the money.
What I want to know is _______will support me.
what
where
why
because
that
which
what
who