2022届高三英语二轮复习表语从句课件(19张ppt)

(共19张PPT)
Predicative Clauses
The person stood in front of you just now is headmaster.
The door remained closed.
My job is to teach you English.
The reason why he came late was that his clock didn’t work.
观察下列句子，找出标红部分的共同点。
表语是用来说明主语的身份、性质、品性、特征和状态的，表语常由名词、代词、数词、动词过去分词、动词的-ing形式、副词、介词短语、形容词、不定式和从句等来充当。
一、表语的定义
二、表语从句的定义
1.The question is who will do it.
2.The trouble is that we are short of money.
3.That is why she had a day off yesterday.
4.The question is whether the God really exists.
在复合句中做表语的从句，叫做表语从句。它位于主句的系动词之后，对主语进行解释说明，使主语的内容具体化。
三、表语从句的构成
主语 + 系动词 + 引导词 + 简单句
This is why he did it.
表语从句
语序：
陈述语序
可以接表语从句的系动词有：
1. 状态系动词：be
2. 感官系动词：feel, seem, look, appear, sound, taste, smell
3. 持续系动词：stand, lie, remain, keep, stay
4. 变化系动词：become, get, grow, turn, go, come, run, fall
5. 终止系动词：prove, turn out
是...
...起来
保持
变得
证明是...
结果是...
四、表语从句引导词
从属连词：that / whether /as if /as though
(if不引导表语从句)
连接代词：who / whom / whose / which/ what
连接副词：when / where / why / how
The fact is that he doesn’t really try.
The trouble is that I have lost his address.
My suggestion is that we should tell him.
It seems that he was late for the train.
1. 由that引导，that本身没有词义，在句中只起连接作用，不充当句子成分,通常不省略。
that引导表语从句时，主句的主语常常是些抽象名词，如question, trouble, problem, result, chance, suggestion, idea, reason等。
1. The question is ______________________
2. The question is _______________________
whether it is worth doing.
whether we can win them.
2. whether 在句子中不充当任何成分，但具有“是否”的意义。注意：if不能引导表语从句。
The question is what caused the accident.
That mountain is no longer what it used to be.
The problem is whose work is the best.
The question is which of us should go.
The question is who(m) we should trust.
3. 由连接代词who, what, which, whom, whose, whatever, whoever, whomever, whichever 引导表语从句，并在句中作主语、宾语、表语，代词不能省略。
4. 连接副词 when, where, how, why 除在句子起连接作用外，在从句中还充当时间、地点、方式或原因状语，本身具有词义。
This is why she was late for the meeting.
The question is how he did it.
That is where he was born.
That’s where I first met her.
5. as if/though引导表语从句时，在句子中不充当任何成分，但有意义。译为：似乎，好像。
He looks as if he were a rich man.
It sounds as if someone is knocking at the door.
as if/as though引导的表语从句如果是事实，就用陈述语气，如果与事实不符，就用虚拟语气(主句一般现在时，从句就用一般过去时。主句是一般过去时，从句用过去完成时 )。
The young man with long hair looks as if he were a girl.
Dark clouds are gathering. It looks as if it’s going to rain.
1. I was late for school this morning. That's because I stayed up too late last night. (果→因)
今天早上我上学迟到了,那是因为我昨晚熬夜太晚了。
2. I stayed up too late last night. That's why I was late for school this morning. (因→果)
我昨晚熬夜太晚,那就是我今天早上上学迟到的原因。
6. 由because/why引导
because引导的表语从句常用于“That's because…”结构中,说明产生上述结果的原因;why引导的表语从句说明由上述原因导致的某种结果。
The reason why he was late was that he missed the first bus this morning.
他迟到的原因是他今天早上没赶上首班公共汽车。
[注意]that, why, because引导的表语从句的区别:
that, why, because都可引导表语从句，表示原因的名词(reason, cause)作句子主语时,其后的表语从句常用that引导,不可用because引导。
7. 使用虚拟语气的表语从句
当主语是表示“建议、命令、要求、计划(suggestion, advice, proposal, order, command, request, requirement, demand, plan)”等名词时,表语从句应该用虚拟语气,即从句谓语用“should+动词原形”形式,should可以省略。
e.g. My suggestion is that we (should) start early tomorrow.
小结：
1. 表语从句的构成:
引导词+简单句
2. 引导词:
连词：that, whether, as if,as though
连接代词：who, what, which, whose, whatever, whoever, whichever, whomever
连接副词：when, where, how ,why
3. 4个注意点:
②if 不引导表语从句
③主语为reason时，引导词用that
④语序 陈述语序
①that引导表语从句时不能省略
【完成句子】
that he didn’t really try
whether the film is worth seeing
it seems as if
1)The fact was _____________________________.
事实是他没有真正地尝试。
2) The question is ____________________________.
问题是这部电影是否值得看。
3) Now _______________she had known Millie for years.
现在看起来好像她认识米莉已有好多年了。
4) My advice is that you _______________________ as often as possible.
我的建议是你要尽可能经常地练习说英语。
5) That’s __________________________________.
那就是我第一次遇见她的地方。
6) The problem is ________________________________.
问题是谁才真正适合做这份艰苦的工作。
practice speaking English
who is really fit for the hard job
where I first met her
Thank you!