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Period Ⅲ Grammar——主语从句
观察下面的句子,并感知主语从句的用法。
1.However,what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat.
2.How this could be done was a challenging question at the time.
3.Today,it is estimated that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan’s hybrid strains.
4.What Yuan Longping really cared about was not money or celebrity.
一、主语从句的用法
主语从句是名词性从句的一种,在复合句中作主语,相当于名词。主语从句的位置可以在句首,也可以用it作形式主语,主语从句放在后面。
二、主语从句的引导词
1.连词that/whether,在主语从句中不充当任何成分,只起连接作用,不可省略,其中that没有词义,whether表示“是否”含义,但是不能换成if(如果)。
That she survived the accident is a miracle.(that引导主语从句,在从句中不作成分且无意义)
她在事故中幸免于难简直是个奇迹。
Whether she comes or not doesn’t matter too much.(whether引导主语从句,在从句中不作成分,意为“是否”)
她来不来都关系不大。
2.连接代词what/who/which,在主语从句中充当主语、宾语、表语,不可省略。
Come on,David!What we believe is that you can do it.(what引导主语从句,在从句中作宾语,2022·新高考Ⅰ卷)
来吧,大卫!我们相信你能做到。
3.连接副词when/where/how/why,在主语从句中作状语,分别表示时间、地点、方式、原因,不可省略。
Where I spend my summer vacation is no business of yours.(where引导主语从句,在从句中作地点状语)
我在哪里过暑假不关你的事。
4.另外,wh-+ever如whoever/however/whatever/whichever等也可引导主语从句,在句中充当主语、宾语、表语等,不可省略。
Whoever breaks the law should be punished.(whoever引导主语从句,在从句中作主语)
无论谁触犯法律都应该受到惩罚。
三、it作形式主语的主语从句
在主语从句中如果主语太长,宾语或表语又太短了,为了避免头重脚轻,保持句子平衡,通常会采用it作形式主语,真正的主语从句放在后面。常见的使用it作形式主语的句型:
1.It+be+形容词+that从句
常见形容词:necessary,likely,clear,right,important,possible,strange
It is obvious that he should know about this.
他应该知道此事,这是显而易见的。
2.It+be+过去分词+that从句
常见过去分词:said,believed,reported,thought,known
It is known that the Internet is vital to us. As a matter of fact,we benefit a lot from the rapid pace of the Internet development. (2021·全国乙卷)
众所周知,互联网对我们至关重要。事实上,我们从互联网的快速发展中受益匪浅。
3.It+不及物动词(短语)+that从句
常见不及物动词(短语):seem,appear,happen,turn out
It seems that they know what they’re doing.
看来他们知道自己在干什么。
4.It+及物动词+宾语+that从句
常见“及物动词+宾语”:make no difference,strike sb,amaze sb
It struck me that you’d be better off working in another company.
我突然想到你若在另一家公司工作境遇会好一些。
5.It+be+名词(词组)+that从句
常见名词(词组):a pity,a shame,no wonder,good news,no surprise
It is a fact that English is accepted as an international language.
英语被接受为一种国际语言,这是一个事实。
四、主语从句的语序和时态问题
1.主语从句和其他名词性从句一样必须使用陈述语序,尤其是当主语从句是疑问词引导的时候,主语从句的语序仍须使用陈述语序。
What I’m hoping to accomplish is that my generation and younger start to reconsider and understand that jazz is not black and white any more.(what引导主语从句,陈述语序)
我希望实现的是,我这一代和年轻一代开始重新思考和理解爵士乐不再是非黑即白的。
2.主语从句的时态需要根据具体语境来确定,但是从句中若陈述的是客观事实或客观真理,则用一般现在时。
When he will come back is still unclear.
他什么时候回来还不清楚。
五、主语从句作主语时谓语动词的选择
1.主语从句作主语时,主句的谓语动词一般用单数形式。
Where he will get a job after graduation has puzzled him much.
毕业后到哪儿找份工作使他很困惑。
2.what引导主语从句且主句为主系表结构时,主句谓语动词的单复数应与表语保持一致。
What the school needs most are books.
这所学校最需要的是书。
3.如果由and连接两个或两个以上的主语从句作主语时,谓语动词用复数形式。
When they will start and where they will go have not been decided yet.
他们将在什么时候动身以及要去哪里还没定下来。
4.由and并列两个或多个连接词引导同一个主语从句时,谓语动词用单数形式。
When and where the activity will take place hasn’t been decided.
何时何地举办这个活动还没决定。
单句语法填空/补全句子
1.It happened that I was out when he called.
2.What we could do was to go back along the previous track slowly.
3.That you don’t like him is (be) none of my business.
4.Why and how he has finished the task remains (remain) unknown.
5.What they will do and how they will do it are (be) unknown to everyone present.
6.It was said that it was his mother who encouraged him to travel,which shaped Xu Xiake’s character. (短文投稿,2023·全国甲卷)
据说是他的母亲鼓励他去旅行,这塑造了徐霞客的性格。
7.Who he will go to Beijing with remains unknown.
他将和谁一起去北京还不得而知。
8.What the doctors really doubt is whether my mother will recover from the serious disease soon.
医生们真正怀疑的是我妈妈是否不久就能从这场重病中恢复过来。(共18张PPT)
Period Ⅲ Grammar——主语从句
UNIT 5 WORKING THE LAND
图解 语法脉络
感知 语法规律
///////
1
2
4
///////
///////
精讲 语法知识
3
///////
跟踪 落实检查
观察下面的句子,并感知主语从句的用法。
1.However,what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat.
2.How this could be done was a challenging question at the time.
3.Today,it is estimated that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan’s hybrid strains.
4.What Yuan Longping really cared about was not money or celebrity.
一、主语从句的用法
主语从句是名词性从句的一种,在复合句中作主语,相当于名词。主语从句的位置可以在句首,也可以用it作形式主语,主语从句放在后面。
二、主语从句的引导词
1.连词that/whether,在主语从句中不充当任何成分,只起连接作用,不可省略,其中that没有词义,whether表示“是否”含义,但是不能换成if(如果)。
That she survived the accident is a miracle.(that引导主语从句,在从句中不作成分且无意义)
她在事故中幸免于难简直是个奇迹。
Whether she comes or not doesn’t matter too much.(whether引导主语从句,在从句中不作成分,意为“是否”)
她来不来都关系不大。
2.连接代词what/who/which,在主语从句中充当主语、宾语、表语,不可省略。
Come on,David!What we believe is that you can do it.(what引导主语从句,在从句中作宾语,2022·新高考Ⅰ卷)
来吧,大卫!我们相信你能做到。
3.连接副词when/where/how/why,在主语从句中作状语,分别表示时间、地点、方式、原因,不可省略。
Where I spend my summer vacation is no business of yours.(where引导主语从句,在从句中作地点状语)
我在哪里过暑假不关你的事。
4.另外,wh-+ever如whoever/however/whatever/whichever等也可引导主语从句,在句中充当主语、宾语、表语等,不可省略。
Whoever breaks the law should be punished.(whoever引导主语从句,在从句中作主语)
无论谁触犯法律都应该受到惩罚。
三、it作形式主语的主语从句
在主语从句中如果主语太长,宾语或表语又太短了,为了避免头重脚轻,保持句子平衡,通常会采用it作形式主语,真正的主语从句放在后面。常见的使用it作形式主语的句型:
1.It+be+形容词+that从句
常见形容词:necessary,likely,clear,right,important,possible,strange
It is obvious that he should know about this.
他应该知道此事,这是显而易见的。
2.It+be+过去分词+that从句
常见过去分词:said,believed,reported,thought,known
It is known that the Internet is vital to us. As a matter of fact,we benefit a lot from the rapid pace of the Internet development. (2021·全国乙卷)
众所周知,互联网对我们至关重要。事实上,我们从互联网的快速发展中受益匪浅。
3.It+不及物动词(短语)+that从句
常见不及物动词(短语):seem,appear,happen,turn out
It seems that they know what they’re doing.
看来他们知道自己在干什么。
4.It+及物动词+宾语+that从句
常见“及物动词+宾语”:make no difference,strike sb,amaze sb
It struck me that you’d be better off working in another company.
我突然想到你若在另一家公司工作境遇会好一些。
5.It+be+名词(词组)+that从句
常见名词(词组):a pity,a shame,no wonder,good news,no surprise
It is a fact that English is accepted as an international language.
英语被接受为一种国际语言,这是一个事实。
四、主语从句的语序和时态问题
1.主语从句和其他名词性从句一样必须使用陈述语序,尤其是当主语从句是疑问词引导的时候,主语从句的语序仍须使用陈述语序。
What I’m hoping to accomplish is that my generation and younger start to reconsider and understand that jazz is not black and white any more.(what引导主语从句,陈述语序)
我希望实现的是,我这一代和年轻一代开始重新思考和理解爵士乐不再是非黑即白的。
2.主语从句的时态需要根据具体语境来确定,但是从句中若陈述的是客观事实或客观真理,则用一般现在时。
When he will come back is still unclear.
他什么时候回来还不清楚。
五、主语从句作主语时谓语动词的选择
1.主语从句作主语时,主句的谓语动词一般用单数形式。
Where he will get a job after graduation has puzzled him much.
毕业后到哪儿找份工作使他很困惑。
2.what引导主语从句且主句为主系表结构时,主句谓语动词的单复数应与表语保持一致。
What the school needs most are books.
这所学校最需要的是书。
3.如果由and连接两个或两个以上的主语从句作主语时,谓语动词用复数形式。
When they will start and where they will go have not been decided yet.
他们将在什么时候动身以及要去哪里还没定下来。
4.由and并列两个或多个连接词引导同一个主语从句时,谓语动词用单数形式。
When and where the activity will take place hasn’t been decided.
何时何地举办这个活动还没决定。
that
单句语法填空/补全句子
1.It happened ____________ I was out when he called.
2.____________ we could do was to go back along the previous track slowly.
3.That you don’t like him ____________ (be) none of my business.
4.Why and how he has finished the task ______________ (remain) unknown.
5.What they will do and how they will do it ____________ (be) unknown to everyone present.
What
is
remains
are
6.________________it was his mother who encouraged him to travel,which shaped Xu Xiake’s character. (短文投稿,2023·全国甲卷)
据说是他的母亲鼓励他去旅行,这塑造了徐霞客的性格。
7._______________________________ remains unknown.
他将和谁一起去北京还不得而知。
8.________________________________ whether my mother will recover from the serious disease soon.
医生们真正怀疑的是我妈妈是否不久就能从这场重病中恢复过来。
It was said that
Who he will go to Beijing with
What the doctors really doubt isPeriod Ⅲ Grammar——主语从句
观察下面的句子,并感知主语从句的用法。
1.However,what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat.
2.How this could be done was a challenging question at the time.
3.Today,it is estimated that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan’s hybrid strains.
4.What Yuan Longping really cared about was not money or celebrity.
一、主语从句的用法
主语从句是名词性从句的一种,在复合句中作主语,相当于名词。主语从句的位置可以在句首,也可以用it作形式主语,主语从句放在后面。
二、主语从句的引导词
1.连词that/whether,在主语从句中不充当任何成分,只起连接作用,不可省略,其中that没有词义,whether表示“是否”含义,但是不能换成if(如果)。
That she survived the accident is a miracle.(that引导主语从句,在从句中不作成分且无意义)
她在事故中幸免于难简直是个奇迹。
Whether she comes or not doesn’t matter too much.(whether引导主语从句,在从句中不作成分,意为“是否”)
她来不来都关系不大。
2.连接代词what/who/which,在主语从句中充当主语、宾语、表语,不可省略。
Come on,David!What we believe is that you can do it.(what引导主语从句,在从句中作宾语,2022·新高考Ⅰ卷)
来吧,大卫!我们相信你能做到。
3.连接副词when/where/how/why,在主语从句中作状语,分别表示时间、地点、方式、原因,不可省略。
Where I spend my summer vacation is no business of yours.(where引导主语从句,在从句中作地点状语)
我在哪里过暑假不关你的事。
4.另外,wh-+ever如whoever/however/whatever/whichever等也可引导主语从句,在句中充当主语、宾语、表语等,不可省略。
Whoever breaks the law should be punished.(whoever引导主语从句,在从句中作主语)
无论谁触犯法律都应该受到惩罚。
三、it作形式主语的主语从句
在主语从句中如果主语太长,宾语或表语又太短了,为了避免头重脚轻,保持句子平衡,通常会采用it作形式主语,真正的主语从句放在后面。常见的使用it作形式主语的句型:
1.It+be+形容词+that从句
常见形容词:necessary,likely,clear,right,important,possible,strange
It is obvious that he should know about this.
他应该知道此事,这是显而易见的。
2.It+be+过去分词+that从句
常见过去分词:said,believed,reported,thought,known
It is known that the Internet is vital to us. As a matter of fact,we benefit a lot from the rapid pace of the Internet development. (2021·全国乙卷)
众所周知,互联网对我们至关重要。事实上,我们从互联网的快速发展中受益匪浅。
3.It+不及物动词(短语)+that从句
常见不及物动词(短语):seem,appear,happen,turn out
It seems that they know what they’re doing.
看来他们知道自己在干什么。
4.It+及物动词+宾语+that从句
常见“及物动词+宾语”:make no difference,strike sb,amaze sb
It struck me that you’d be better off working in another company.
我突然想到你若在另一家公司工作境遇会好一些。
5.It+be+名词(词组)+that从句
常见名词(词组):a pity,a shame,no wonder,good news,no surprise
It is a fact that English is accepted as an international language.
英语被接受为一种国际语言,这是一个事实。
四、主语从句的语序和时态问题
1.主语从句和其他名词性从句一样必须使用陈述语序,尤其是当主语从句是疑问词引导的时候,主语从句的语序仍须使用陈述语序。
What I’m hoping to accomplish is that my generation and younger start to reconsider and understand that jazz is not black and white any more.(what引导主语从句,陈述语序)
我希望实现的是,我这一代和年轻一代开始重新思考和理解爵士乐不再是非黑即白的。
2.主语从句的时态需要根据具体语境来确定,但是从句中若陈述的是客观事实或客观真理,则用一般现在时。
When he will come back is still unclear.
他什么时候回来还不清楚。
五、主语从句作主语时谓语动词的选择
1.主语从句作主语时,主句的谓语动词一般用单数形式。
Where he will get a job after graduation has puzzled him much.
毕业后到哪儿找份工作使他很困惑。
2.what引导主语从句且主句为主系表结构时,主句谓语动词的单复数应与表语保持一致。
What the school needs most are books.
这所学校最需要的是书。
3.如果由and连接两个或两个以上的主语从句作主语时,谓语动词用复数形式。
When they will start and where they will go have not been decided yet. 他们将在什么时候动身以及要去哪里还没定下来。
4.由and并列两个或多个连接词引导同一个主语从句时,谓语动词用单数形式。
When and where the activity will take place hasn’t been decided.
何时何地举办这个活动还没决定。
单句语法填空/补全句子
1.It happened ____________ I was out when he called.
2.____________ we could do was to go back along the previous track slowly.
3.That you don’t like him ____________ (be) none of my business.
4.Why and how he has finished the task ______________ (remain) unknown.
5.What they will do and how they will do it ____________ (be) unknown to everyone present.
6.________________it was his mother who encouraged him to travel,which shaped Xu Xiake’s character. (短文投稿,2023·全国甲卷)
据说是他的母亲鼓励他去旅行,这塑造了徐霞客的性格。
7.__________________________________________________________________
remains unknown.
他将和谁一起去北京还不得而知。
8.__________________________________________________________________
whether my mother will recover from the serious disease soon.
医生们真正怀疑的是我妈妈是否不久就能从这场重病中恢复过来。
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