主语从句
主语从句造句
主语从句造句1. 什么是主语从句？主语从句指在一个复合句中，充当主语成分的子句。
主语从句在整个句子中起着相当重要的作用，因为它们往往决定整个句子的意思和结构。
示例：That you are here—that life exists, and identity; That the powerful play goes on, and you may contribute a verse.2. 主语从句的构成主语从句由两个部分构成：引导词和主语。
常见的引导词有：that、whether、what、who、whom、whose、which、when、where、why、how等。
示例：Who stole my wallet? It's a mystery to me.3. 如何造主语从句？为了使主语从句的语法和语义都正确，我们需要注意以下几个方面：（1）引导词的使用何时使用that引导主语从句？何时使用whether引导主语从句？一般来说，使用that引导主语从句时，从句谓语动词必须是实意动词，且不能省略。
示例：It is important that you arrive on time.使用whether引导主语从句时，主语从句多表示选择、疑问等，而且必须带有or not。
示例：Whether they come or not doesn't matter.（2）主语从句的语序主语从句的语序与陈述句的语序不同，常见的语序有：1.陈述语序即主语+谓语+其他（宾语、表语等）示例：The sun rises in the east.2.疑问语序即谓语+主语+其他示例：Does the sun rise in the east?3.应答语序即Yes/No+主语+谓语示例：Yes, the sun rises in the east.（3）主语从句的时态主语从句的时态与主句的时态要保持一致。
主语从句
2) 对于以连接代词(副词)引导的主语从 句，可以使用形式主语代主语从句，也 可直接在句首使用主语从句： Whether they would support us was a problem. 他们是否会支持我们还是一个问题。 It was a problem whether they would support us. 他们是否会支持我们还是一个问题。
Sum up
1. 主语从句连接词 . 2.主语从句的语序 3.主从复合句中主句谓语动词 的人称和数 4.含“形式主语It”的 主语从 句 5.连词that的省略问题
Home work
• 复习必修一Units3-4单词 • 背必修三Unit2第一部分单词 • 课外听力1-2篇
whether引导
• Whether it will do us harm remains to be seen. • 是否对我们有害还要看一看。 • Whether they would support us was a problem. • 他们是否会支持我们还是一个问题。
连接代词引导
• Whoever is top from wins the game when two matched players meet. • 两强相争勇者胜。 • Whichever (of you) comes in first will receive a prize. • 无论(你们)谁先到都可以得奖。 • 翻译:Whichever you want is yours. • 你要哪个哪个就是你的。
(3) 对关系代词型what引导的主语 从句，通常直接将主语从句放在 句首。如： What we need is money. 我们需要的是钱。 What I want to know is this. 我想知道的就是这一点。
主语从句用法总结
主语从句用法总结以下是 8 条关于主语从句用法总结：1. 哎呀呀，什么是主语从句呢？就像“Whether we will go camping tomorrow depends on the weather.”这句话里，“Whether we will go camping tomorrow”就是充当主语呀，这不就是一个典型例子嘛！2. 你看哈，像“When he will arrive is a mystery.”这样的，“When he will arrive”就是主语从句哦，是不是很神奇呢！3. 哇塞，“That he is so talented surprises us all.”这里的“That he is so talented”就是在当主语呢，没想到吧！4. 嘿，“What he said really made me angry.”这句懂了吧，“What he said”就是那个关键的主语从句呀！5. 呀，“How she managed to finish the work in such a short time remain s a question.”瞧见没，“How she managed to finish the work in such a short time”就是主语从句啦！6. 哟呵，“Who will be the winner is hard to predict.”这里的“Who will be the winner”不就是在充当主语的角色嘛！7. 哈哈，“Why he did that is obvious.”，“Why he did that”可不就是主语从句嘛！8. 哇哦，“Which team will win the game interests everyone.”，“Which team will win the game”就是咱说的主语从句呀！我的观点结论就是：主语从句用法挺多的，大家得好好掌握呀，这样英语才能更上一层楼呀！。
主语从句的简单例句
主语从句的简单例句你听到一个句子，瞬间就明白它的意思，觉得简单到不行，甚至有点小炫耀地想：“这不就是我每天说的那种话吗？”然后你再仔细一想，哎呀，其实这个简单的句子背后，竟然有一个复杂的结构——主语从句！你可能会觉得：“什么？主语从句？那不是很难吗？”别担心，今天咱们就来聊聊这个“神秘”的东西，让你轻松搞懂它。
你肯定听说过一句话，“天下武功，唯快不破”，主语从句其实就是那种，虽然听起来有点复杂，但如果你掌握了它的“快”，你也能做得不差。
比如，咱们常听到别人说“我不知道他会来”。
有些人可能会停顿一下，想：“是不是这句话的结构有点奇怪？”其实并没有，这个句子背后藏着个主语从句，它就是“他会来”在句子里的主语。
咋样，听着是不是不难？说实话，主语从句并不让人头疼，只要你弄清楚了它的构成，接下来就像捏泥巴一样简单。
比方说，“What you said surprised me.” 哎，这不就是你说的那句让人挺吃惊的话吗？你可以想象那时候的表情，完全没有头绪地感叹：“哇，这人竟然能说出这么神奇的话。
”别看它复杂，拆开来就是：“What you said”是整个主语从句，它是句子的“主角”，其他部分就是“surprised me”。
是不是特别简单，轻松又有点小威风？这就叫“主语从句”，别看它名字拗口，做起来倒是挺有趣的。
再举个例子，想象一下你在一家餐厅里，看到服务员端上来一盘盘的美食，你惊呆了：“How they made all these dishes!” 这里面，“How they made all these dishes”是主语从句。
你一看就知道，不对！这事肯定不是我能干的，所以你这时候用主语从句表达的心情就特别真实。
想象一下，看到那么多菜肴，你一下子就觉得“哇，这怎么可能？他们怎么做到的？”主语从句就像是揭示了一些令人惊讶的秘密，一瞬间你就有了想要深入了解的欲望。
主语从句一出来，大家瞬间都安静了，心里都在琢磨“这怎么能做到？”这一点，你肯定懂得。
主语从句的正确使用技巧
主语从句的正确使用技巧主语从句是复合句中的一种重要成分，用来引导句子的主语。
正确使用主语从句可以使句子表达更加准确、简洁。
本文将介绍主语从句的概念、用法以及一些常见的使用技巧。
一、概念主语从句是一个从句，作为一个整体在复合句中充当主语的角色。
主语从句通常由连接词引导，如：that, whether, if等。
二、用法1. 表示事实或观点：主语从句可以用来表达一个事实或观点，如：- That he is talented is undeniable.（他很有才华是不可否认的。
） - Whether he will succeed remains to be seen.（他是否会成功尚未可知。
）2. 引用他人的话语或看法：主语从句可以引用他人的话语或看法，如：- Her mother said that she had to go to bed early.（她妈妈说她得早点上床睡觉。
）- I believe what he said is true.（我相信他说的是真的。
）3. 引导疑问句：主语从句可以用来引导疑问句，如：- What he is looking for is a good job.（他正在寻找的是一份好工作。
）- How he managed to pass the exam remains a mystery.（他如何通过考试仍然是个谜。
）三、使用技巧1. 引导词的选择：根据从句所表达的具体内容，选择合适的引导词。
一般来说，较常用的引导词是that, whether和if。
例如：- They believe that he is innocent.（他们相信他是无辜的。
）- Could you tell me whether/if she is coming?（你能告诉我她是否来吗？）2. 将主语从句放在句首：若主语从句过长或复杂，为了更好的表达意思，可以将主语从句放在句首。
例如：- Whether he will win the game is still uncertain.（他是否会赢得比赛仍然不确定。
常见的主语从句句型
常见的主语从句句型一、以it作形式主语的主语从句常见句型1. It + be + 形容词 + that从句- 例如：It is important that we should learn English well.（我们应该学好英语是很重要的。
）- 这里的形容词还可以是necessary（必要的）、obvious（明显的）、certain （确定的）等。
如It is necessary that you (should) arrive there on time.（你按时到达那里是必要的。
）2. It+ be+名词（短语）+ that从句- 例如：It is a pity that you missed the wonderful performance.（你错过了精彩的表演真是遗憾。
）- 常见的名词（短语）还有：a fact（事实）、a wonder（奇迹）、good news（好消息）等。
如It is a fact that the earth moves around the sun.（地球绕着太阳转是一个事实。
）3. It + be+ 过去分词+ that从句- 例如：It is said that he has gone abroad.（据说他已经出国了。
）- 类似的过去分词还有：reported（报道）、believed（相信）、known（知道）等。
如It is known that light travels faster than sound.（众所周知，光比声音传播得快。
）二、直接由连词引导的主语从句句型1. 连接代词引导的主语从句- 例如：What we need is more time.（我们所需要的是更多的时间。
）- 这里的连接代词what在从句中作宾语。
如果是Who will be our monitor hasn't been decided yet.（谁将成为我们的班长还没有决定。
主语从句全
the man wearing a dress he won the competition a hurricane will arrive soon everyone can be the champion
It is necessary that…
one should obey the law
It is strange that…
2. That there is no dental caries (没有蛀牙) is our common goal.
由that引导的主语从句
That 引导的主语从句放在句末 用it 作形式主语放在句首
1.It has been known for years that Mount Qomolangma is the highest mountain in the world. 2.It is obvious that he is a workaholic. 3.It is a fact that the world is round.
一个众所周知的事实是，一个单身汉若是非常有钱，句
句型三： It + be + 名词短语 + that从句
名词短语中的一部分名词与同位语从句中的先行词相同
翻译：1.鲸鱼不是鱼类，这是一个常识。 It is common knowledge that the whale is not a fish. 2.巴西没有赢得比赛，真是太可惜了。
由that引导的主语从句
句型一： It + be + 过去分词 + that 从句
It is reported that… It is believed that… It has been found that…
主语从句用法
主语从句用法以下是 8 条关于主语从句用法的内容：1. 哎呀，你知道吗，“What I want is a peaceful life.”（我想要的是平静的生活。
）这就是一个很典型的主语从句呀！你想想，“What I want”在这里不就是充当主语嘛，直接说明了我渴望的东西，多直白啊！就像你特别渴望吃一个美味的冰淇淋一样清晰。
2. 嘿，“Whether he will come or not is still a mystery.”（他是否会来仍然是个谜。
）这就是用 whether 引导的主语从句哟！你琢磨琢磨，这就好像不知道明天会不会下雨一样让人心里有点好奇和期待呢！对吧？3. 哇塞，“That she is very talented is obvious to everyone.”（她很有才华这一点对每个人都很明显。
）这里的“That she is very talented”就是主语从句呀！这就好比太阳出来大家都知道很热一样，这么明显的事情呀！4. 哟呵，“Whoever breaks the law will be punished.”（无论是谁违反法律都将受到惩罚。
）这不就是在说嘛，无论哪个人，就像无论哪只顽皮的小猫捣乱都得被教训一样呢！5. 哈哈，“What makes him happy is playing basketball.”（让他开心的是打篮球。
）这多生动呀，就像找到自己最爱的玩具一样让他快乐呢！你难道不觉得这样的表达很有趣吗？6. 哎嘿，“How we can solve this problem remains to be seen.”（我们如何能解决这个问题还有待观察。
）不就像是在探索一条未知的路，怎么往前走还不知道呢，但就是很想去弄清楚呀！7. 呀！“Whom she gave the book to is a secret.”（她把书给谁了是个秘密。
）这就好像一个神秘的礼物被送给了谁，让人好奇得很呢，是不是？8. 哇呀！“When the concert will start depends on many factors.”（音乐会什么时候开始取决于很多因素。
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practice
Complete the sentences using what, whether, where, when， who, why, how or that.
1.(_____ What is needed for success) is your hard work.
When/How 2.(______ they will arrive )has been told to the teacher. Where/whether 3.(_____ we will go tomorrow )hasn’t been decided yet.
Whocan join in the sport meet) is decided by the teacher. 4.(___ 5.(________ Whether it will rain or not) is not clear. Whythe earth is becoming warm) is a good topic for research. 6. (____
引导词： 1.连词： that whether 1That he will come is certain. 2.连接代词：who(whoever) 2Whether it will please them is not easy to say. whom(whomever) 3What seems easy to some people seems difficult to others. what(whatever) 4Which side will win is not clear. which(whichever) whose 5Why he did it remains 3. a 连接副词： mystery. when where 6When they will start is not known yet. how why 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. 从句用陈述语序
Task 1
试比较2
• • • •
is What I want ____money. are good books What we need ______ What he said _______ reasonable. is what 引导的句子作主语时，谓语动词的数 由句子的内容决定（即由表语决定)。
完成下列句子并观察
1. . That she left himhurts him so much.（她离开他 ）
2. That we will be late is certain.（我们会迟到） 3. ______________________is known to all. (地球是圆的) That the earth is round 4. _________________________ That you missed the chance is a pity.(你错过了这次机
试比较1
• Where he was born and where he lives now are _________not clear. remains a secret. • Where and when he was born________ • 两个或两个以上从句做主语，主句谓语动词应 为复数。 • 两个或两个以上的连词引导一个从句，主句谓 语动词应为单数。
测一测
Who will win the match is still unknown.
主语从句
I want to know what he has told you.
宾语从句
The fact is that we have lost the game.
表语从句
The news that we won the game is exciting.
会)
It hurts him so much that she left him. 注 意1：为 了避免句子 It is certain that we will be late. It is known to all that the earth is round. 头重脚轻, 常用it作形 It is a pity that you missed the chance. 式主语,主语 It is uncertain whether we can find him. 从句后置。 It is unknown who will take her place.
同位语从句
Find the subject clauses in the following sentences, and translate them. 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.
It + be + V-ed ＋ that从句
It is believed/said/reported that… It is known to us that …. 众所周知… It has been decided that…已经决定… It is suggested/requested/ordered/advised that+主 +(should) do/be….
A sentence serving as subject is called Subject Clause.
Subject Clause (主语从句)
Noun Clauses (名词性从句)
Object Clause （宾语从句） Predicative Clause （表语从句） Appositive Clause （同位语从句）
观察句子总结1：引导词
观察句子总结2：语序
观察句子总结3：主谓一致
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.单个从句做主语谓 语动词用单数
Noun Clauses as the Subject
西安市田家炳中学 主讲人： 党 玲
Let’s enjoy a song
Grammar
What part does the underlined part serve as in each sentence? 1.The girl is beautiful. 2. You are a student. 3. Smoking is bad for you. 4. To find your way can be a problem. 5. Who will come is not clear. 6 .What she said is not yet known. 7. That we shall be late is certain. 8. It is certain that we shall be late.
It appears that… 似乎… It happens that …. 碰巧… It occurred to me that…… 我突然想起……
• 1. ______________（很显然）that communication between parents and children is very important. • 2. ______________(这是肯定的)that the habit will do harm to you. • 3._________________ (不确定) whether he is coming or not. • 4. ______________(人们都相信)that bringing up a child needs a large amount of money. • 5.__________________ (已经决定) that the exhibition will not open on Sundays.