主语从句公开课

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注意与强调句的区别: 强调句去掉 It is\ was …. that ….结构句意不变,句子结构完整。
Consolidation ------学法指导
依据“缺什么补什么”原则确定正确的连词。所谓 “缺什么补什么” 所谓 缺什么补什么”是指从句 连词之间的关系 从句与 之间的关系。 “缺什么补什么”是指从句与连词之间的关系。 如果句子中缺主语 指人用who,指物用what; 主语, 如果句子中缺主语,指人用 , ; 如缺宾 如缺宾语,指人用whom,指物用what;如缺时 , ;如缺时 间状语用 间状语用when;地点状语用where;原因状语用 ;地点状语用 ;原因状语用 why;方式状语用how;定语用what或which; ;方式状语用 ;定语用 或 ; 什么都不缺用 什么都不缺用that 。Wether表“是否” 。 表 是否”
3. Why was Lily late is not important. 正:Why Lily was late is not important. 规则一:主语从句一律用陈述语序, 即主语在前,谓语在后。
主语从句的规则: 例2. If the meeting will be put off has not been
decided yet.
正: Whether the meeting will be put off
has not been decided yet. If we will have lessons next weekend is unknown. Whether we will have lessons next weekend is unknown.
规则五:what引导名词性从句时在从 规则五: 引导名词性从句时在从 句中充当句子成分 如主语,宾语 表语, 充当句子成分,如主语 宾语,表语 句中充当句子成分 如主语 宾语 表语 则不然,它在句子中 而that则不然 它在句子中只起连接作 则不然 它在句子中只起连接作 但不能省略 省略。 用,但不能省略。
next weekend.
主语从句的规则:
例3. When he will come are a puzzle. 正:When he will come is a puzzle.
规则三:含主语从句的主句谓语动词多用 单数第三人称形式。
主语从句的规则:
1. What he needs is that book. 2. What he needs are some books.
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It + be + -ed分词 + that从句 分词 从句
It is believed that… 人们相信… 人们相信 It is known to us/all that …. 众所周知… 众所周知 It has been decided that…… 已经决定 已经决定……
It + be + 名词 + that从句 从句
规则二:whether 可以引导主语从句:“是否 ”表不确定的事情。放在句首,但if不能。it 作 表不确定的事情。 形式主语, 形式主语,主语从句放句末时,whether / if 都
能用。如: It is unknown whether / if we will have lessons 能用。
• 主语从句的引导词: 主语从句的引导词: • • • • • • • • • 连词 that , whether 连接代词 who(ever), whom(ever), which(ever), what(ever) 连接副词 where ,when ,why ,how 根据从句在句子中的位置) (根据从句在句子中的位置) 主语从句+谓语 主语从句 谓语 主语从句的句序: it(形主)+that(真主) (形主) (真主)
主语从句的规则:
_______breaks the law should be punished. A. Who B. Whoever C. No matter who D. Anyone
试比较: 试比较:Whoever breaks the schools rules, he must be punished. =No matter who breaks the school rules, he must be punished. 让步状语从句 规则六: 规则六:whoever, whatever, whichever等词可以 等词可以 引导主语从句, 引导主语从句 但no matter who, no matter what 等用在让步状语从句中。在状语从句中: 等用在让步状语从句中。在状语从句中:Whever=no matter who;whoever=anyone who. ;
形式主语的that从句有以下四种 用it形式主语的 形式主语的 从句有以下四种 不同的搭配: 不同的搭配: It + be + 形容词 + that从句 从句
It is necessary that… It is important that …. It is obvious that…… 有必要… 有必要 重要的是… 重要的是 很明显…… 很明显
Translate the following sentence.
What is even随着地球的冷却, is that as the 更重要的是, more important 地球的表面就 earth cooled down, water began to appear 开始出现了水。 on its surface.
主语从句的规则: 找出下列句子中的错误,并总结规律 例1.When will he come is not known. 正:When he will come is not known. 2.Where will he go is not yet fixed.
正:Where he will go is not yet fixed.
在此作连接代词,引导主语从句, 【试析】what 在此作连接代词,引导主语从句, 试析】 并在从句中作主语。 引导主语从句时, 并在从句中作主语。that引导主语从句时,只起引 引导主语从句时 导作用,不作任何成分. 导作用,不作任何成分
2. ___ in the regulations that you should not tell other people the password of your email account.(2005 上海 ) 上海-38) ( A. What is required B. What requires C. It is required D. It requires 解析: 解析 “It is required that …”是一个 是一个 固定句式, 作形式主语 作形式主语, 固定句式,it作形式主语 that 引导的从句为真正的主语。 引导的从句为真正的主语。
3. ___we’ll go camping tomorrow ’ depends on the weather . A If C That B Whether D Where
答案是C。 答案是 。“明天我们是否去野营得 看天气了。 看天气了。”
4. ___ he has become a rich man is known to all in our town. [高考真题 高考真题] 高考真题 A. Because B. That C. / D. What 答案是B。“他变成了富翁, 这是我 答案是 。 他变成了富翁 们镇上下人人皆知的事。 根据句意, 们镇上下人人皆知的事。”根据句意 须用that 引导的主语从句。that 在从 引导的主语从句。 须用 句中不担任任何成分, 只起连接作用. 句中不担任任何成分 只起连接作用 That引导主语从句的时候不可省略。 引导主语从句的时候不可省略。 引导主语从句的时候不可省略
Translate the following sentence.
地球会变成什么(样子), 直到45亿至38亿 1. What it was to become was uncertain 年前这个云团变成一个固体的球状物, 才确定 until between 4. 5 and 3. 8 billion years 下来。 ago when the dust settled into a solid globe. 2. The earth became so violent that it was 地球变得激烈动荡, 不知道这个固体形状是否会继续 not clear whether the shape would last or 存在下去。 not.
Unit4 Grammar 名词性从句之主语从句
1.了解并掌握主语从句的相关概念 了解并掌握主语从句的相关概念 2.完成与主语从句相关的练习 完成与主语从句相关的练习 3.重点:主语从句的句序、主谓一致。 重点: 重点 主语从句的句序、主谓一致。 4.难点:引导主语从句的连接词的使 难点: 难点 用。
规则四:what 引导的主语从句,可根据 表语决定主句动词的单复数形式。
(what 用法较特殊,需要记住。)
主语从句的规则: 与 that 引导主语从句 What
(1)_____you said yesterday is right. What (2) That _____she is still alive is a great news to all of us.
It is common knowledge that… …是常识 是常识 It is a surprise that …. 令人惊奇的是… 令人惊奇的是 It is a fact that…… 事实是…… 事实是
It + 不及物动词 + that从句 从句
It appears that… 似乎… 似乎 It happens that …. 碰巧… 碰巧 It occurred to me that…… 我突然想起…… 我突然想起
What many scientists believe is that the 很多科学家相信, 由于地球上长期有水存 continued presence of water allowed the 在, 使地球得以把有害气体和酸性物质溶 earth to dissolve harmful gases and acids 解在海洋里。 and seas. into the oceans
挑战高考-即学即练 挑战高考 即学即练
1. _____ made the school proud was______ more than 90% of the students % had been admitted to key universities. 上海春季) (2003上海春季) 上海春季 A. What; because B. What ; that C. That ; what D. That ; because
主语从句的定义: 主语从句的定义:
主语
{ What he does is important
His job is important.
.
在句中充当主语的从 句叫做主语从句。 句叫做主语从句。
Find the subject clauses in the following sentences, and think about what are the connectors (连接词) . 1That he will come is certain. 2Whether it will please them is not easy to say. 3What seems easy to some people seems difficult to others. 4Which side will win is not clear. 5Why he did it remains a mystery. 6When they will start is not known yet. 7How he became a great scientist is known to us all. 8Who will take part in the meeting has not been decided. 9Whoever breaks the law will be punished. 10Where she is from is unknown.
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