外研版高二英语上册：主语从句讲义
高中英语主语从句讲解课件(36张ppt)
*_I_t_i_s_p_o_s_s_i_b_le__th__a_t _(很可能)she will come back tomorrow. *__It_i_s_o__b_v_io_u_s__th__a_t _(很明显)this measure is effective.
3) It + be +过去分词+从句
4.The reason why I study hard is that I want to go to a
key university. 表语从句
5.They believe in that she must still be single. 6.I know nothing about him except that he is living in
找出错误，并给出理由： 1.Where shall we spend the holiday isn’t
decided. we shall 2.You have made a mistake is a fact.
That you have 3. If the policeman will come is not certain.
Beijing 7. I don’t know whether he’s free or not. 8. Mary asked whether I was doing my homework or not. 9. I’m thinking of whether we should go fishing. 10. We are worried about whether it will rain tomorrow.
killed in the accident.
高中英语主语从句讲解课件(共36张PPT)
这样就构成了下面一些常用句型: 1) It is + n. +从句
(四). 判断以下句子是否正确： They should like each other is natural. 错误
That they like each other is natural. 正确
It is natural that they like each other. 正确
That引导的主语从句放句首，既不充当成分又无意义， 但that不能省去。
名词性从句包括： 宾语从句：介宾结构；动宾结构 表语从句：系表结构(系动词后面跟一个从句) 主语从句: 一个句子做主语 同位语从句：对名词进行解释说明
判断下列从句： 1.China is no longer what she used to be. 2.The question remains whether they will be able to help us. 3.It seemed as if I couldn't think of the right word.
When they will leave is not decided.
(4). 连接代词：who(谁，主格); whom(谁；宾格); whose(谁的); what(什么…事/话…); which(哪一个); whoever(无论谁), whatever(无论什么), whichever(无论哪一个) 在句子中担任主语， 宾语，表语或定语
高中英语主语从句讲析课件可修改全文
3. It is a pity that I missed the train.
4. It doesn’t matter whether he will come or not.
5. It seems that it is going to rain.
It’s likely/possible/important/necessary/clear that 很可能/重要的是…/必要的是…/很清楚… It+ be +名词+ that 从句 It’s no wonder that…并不奇怪/无疑
It’s a pity/a fact /a common knowledge (众所周知） / a common saying（俗话说）that It+ be + 不及物动词+ that从句 It seems/appears/happens that…显然、明显、碰巧
matter much.
if, whether都可表示“是否”, 但if不能引 导位于主句之前的主语从句，它可以引导 位于主句之后带有形式主语it的主语从句。
3. TWhhaatt the professor said is of great importance.
that引导主语从句时无词义。What the professor said表示“教授所说的”。
6. It happened that they didn’t know my address.
请你归纳 ？
T——h—a—t —a—s—t—o—r—m——is——c—o—m—i—n—g
is well reported
英语主语从句讲解 ppt课件
ppt课件 4
what 与that 在引导主语从句时区别
1) What you said yesterday is right.
It is right what you said yesterday. ×
what 充当句子成分，如主语、宾语、表语，
2) That she is still alive is certain.
ppt课件
14
1.I hate ____ when people talk with their mouths full A. it B. that C. these D. them 2. I feel ____ strange that he should be so careless. A. / B. it C. that D. how
ppt课件 17
Exercises
B another power station 1. The news ____ will be built cheered all the villagers. A which B that C what D whatever
A he told us is exciting. 2 The news ____
ppt课件
16
Practice
1. His proposal that we go there on foot is acceptable. 2. Many teachers hold the view that teenagers should not spend too much time online. 3.The first request that he made was to ask for freedom. 4. Do you have any idea where we will be sent? 5. Is this the company where your father works? 6. This is the reason that he gave for his absence. 7. He made an excuse that his car broke down on the way.
主语从句公开课PPT课件
主语从句可以包含丰富的信息， 包括时间、地点、条件、原因等
，使表达更加准确具体。
通过主语从句可以精确地描述某 个事件或情况，避免歧义和误解
。
主语从句还可以用来表达复杂的 观点和态度，使文章更具深度和
说服力。
增加文采和感染力
主语从句可以采用多种句式和表达方 式，如倒装句、强调句等，增加文章 的文采和感染力。
连接代词和连接副词引导的主语从句一般放在句首，谓语动词用单数形式。
连接代词what和which在引导主语从句时，有时可以互换使用，但which更强调选 择范围。
主语从句时态、语态和语气
03
问题
时态问题
主语从句时态与主句时态一致
01
主语从句中的动词时态通常与主句中的动词时态保持一致，表
示同时发生的动作或状态。
当主语从句中的主语是表示数量的短语（如a number of, the majority of等）时，谓 语动词的单复数形式取决于短语所修饰的名词。
主语从句中的主语是并列结构时，谓语动词用复数形式
当主语从句中的主语是由and连接的并列结构时，谓语动词用复数形式。
练习题讲解
选择题
通过选择题的形式， 让学生判断主语从句 中主谓一致问题的正
当主语从句中的主语是复数形式时，谓语动词必须与主语保持一致，也用复数形式。
特殊情况处理方法
主语从句中的主语是不定代词时，谓语动词用单数形式
当主语从句中的主语是不定代词（如something, nothing, anyone等）时，谓语动词 用单数形式。
主语从句中的主语是表示数量的短语时，谓语动词用单数或…
主语从句与形式主语的区分
形式主语it代替真正的主语从句，使句子结构更加平衡。需注意形 式主语与真正主语的区分。
2023年高中英语语法精讲,主语从句详细讲解
2023年高中英语语法精讲—主语从句详细讲解主语从句结构及用法在句子中担当主语的从句就叫做主语从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
通常结构为“引导词 + 主语 + 谓语 + 其他成分"。
一. 概念：在句子中担当主语的从句就叫做主语从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
主语从句使用陈述语序，其通常结构为“引导词 + 主语 + 谓语 + 其他成分", 但当连接代词同时充当从句主语时，其结构为“连接代词 + 谓语 + 其他成分”。
二. 引导词：1. that引导eg. That you are coming to London is the best news I have heard this long time.2. whether引导eg. Whether they would come to conference was a question.3. 连接代词引导: who,whom, whose, what, which, whoever, whomever, whichever, whatevereg. Whoever is top from wins the game when two matched players meet.4. 连接副词引导: therefore, besides, otherwise, however, moreover, still, thus, meanwhileeg. How this happended is not clear to anyone.5. 关系代词型what引导三. 形式主语it:1. 对关系代词型what引导的主语从句，可以使用形式主语。
eg. It is clear enough what he meant.2. 如果句子是疑问句，则必须用带形式主语it的结构.eg. Is it true that all of us need to to conference?如果一个句子在复合句中充当一个主语,那么这个句子就是主语从句。
高二英语上学期秋季同步教材第七讲 主语从句
个性化课程辅导教案学员姓名科目年级课时进度：授课时间课时3课时授课老师教学课题第七讲主语从句教学目标要求学生掌握主语从句的定义和用法重点难点主语从句的用法教学内容第一部分：以思维导图复习近期知识重难点第二部分：本次课主要内容一．定义：用一个从句充当句子的主语，叫做主语从句二、主语从句的连词分三类（1）从属连词引导的主语从句（that whether if）that引导的主语从句:引导词that无含义/在句中不做成分/不可以省。
That 引导主语从句通常用it 作形式主语。
例如：That you will win the medal seems unlikely.That she survived the accident is a miracle.whether 引导的主语从句: whether有含义(是否)/在句中不做成分/不可以省。
注意：引导主语从句，不能用if不能在开头，只能用whether。
Whether we will hold a party in the open air tomorrow depends on the weather.Whether she is coming or not doesn’t matter too much.（2）用连接代词引导的主语从句在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，担当一定成分.例如：What you need is more practice.Whatever we do is to serve the people.注：whatever / whoever的功用whatever, whoever在主语从句中不含疑问意义。
它引导主语从句，并在从句中作主语、宾语、表语等。
whatever = anything that; whoever = anyone who。
主语从句知识点归纳总结
主语从句知识点归纳总结一、主语从句的引导词主语从句的引导词有两种情况，一种是以“疑问词”引导的主语从句，如 what, which, who, whom, whose, where, when, why, how；另一种是以“that” 引导的主语从句。
在口语中也可以用 whether 引导主语从句。
这两者的使用没有根本的区别。
二、主语从句的位置主语从句通常位于谓语动词之后，而在连接动词和宾语之间，有时还可用于某些固定句型的主语位置，如“It is+名词/形容词+that/who/whether…”，“There be 句型”等。
在复杂句中，主语从句通常位于主句之前三、主语从句需要注意的语法规则1. 主语从句在句中充当主语成分，主要用来说明主要动作的主体。
如：What he said is true.（他所说的是真的。
）2. 主语从句的谓语动词形式一般要和主句之间的逻辑关系保持一致，即主语从句的谓语动词的数和人称要和主句之间的主谓一致。
如：What he says is true.（他所说的是真的。
）3. 主语从句的谓语动词通常用单数形式，如其中的谓语动词用于表示整体和抽象概念的名词作主语。
表示数量的概念的名词作主语时，谓语动词用复数形式。
如：What she told me was very important.（她告诉我的事情很重要。
）4. 当主语从句中表示的内容是一个具体的个体时，“Who”引导的主语从句谓语动词的单复数形式要和先行词一致。
“Who”引导的主语从句用单数形式表示组织或公司时，谓语动词用单数形式。
表示具体的公司或组织名词作主语时，谓语动词要用单数形式。
如：The girl who is standing over there is my friend.（站在那边的那个女孩儿是我的朋友。
）The team that is winning a prize is from Beijing. （获奖的那个队是北京队。
主语从句超全ppt课件
第二讲：主语从句的引导词及各 类主语从句
主语从句在复合句中作句子的主语。 引导主语从句的词有从属连词that, whether, if；连接代词who, whoever, whom, what, whatever, whose, which； 连接副词when, where, how, why等。
surprise/no wonder难怪/good news/a good thing/a question /that… …是事实
It is common knowledge that… …是常识
*_It__is__a__p_it_y__th__a_t_(很遗憾)we lost the match.
句子
简单句 复合句
并列句
形容词性从句 名词性从句 副词性从句
定语从句
主语从句 subject clause
宾语从句 object clause
表语从句 predicative clause
同位语从句 appositive clause
比较状语从句 地点状语从句 时间状语从句 让步状语从句 条件状语从句 目的状语从句 方式状语从句 结果状语从句 原因状语从句
*____I_t _is_r_e_p_o_rt_ed__th_a_t_(据报道)20 people were killed in the accident.
*___It_i_s_s_u_g_g_es_t_e_d_th_a_t__(建议)we should eat more vegetable and do more exercise.
特殊疑问句作主语
• 需要先将疑问句的倒装语序变成陈述句语 序。
Why dinosaurs became extinct is still a mystery.
高中英语语法——主语从句课件(57张)
理解主语从句
他通过了考试让老师很高兴。 He passed the exam. It made the teacher happy. He passed the exam made the teacher happy. That he passed the exam made the teacher happy.
理解主语从句
他何时要来还不清楚。 When will he come? It is not clear. When will he come is not clear. When he will come is not cleall succeed is certain. Whether he will come makes no difference. What we need is more time.
It is a pity that 很可惜)we lost the match. *_______________( It is a fact that 这是事实)he cheated in the exam. *______________(
1. 令人吃惊的是他改变了主意。 It is a surprise that he changed his mind. 2. 真可惜你错过了这么一个好机会。 It is a pity that you missed such a good chance. 3. 事实是我们周围的污染正变得越来越严重。 It is a fact that the pollution around us is becoming more and more serious.
• Whatever I have is yours.
• Whichever you want is yours.
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No one knows exactly how the earth began, as it happened so long ago. However, according to a widely accepted theory, the universe began with a “Big Bang” that threw matter in all directions. After that, atoms began to form and combine to create stars and other bodies.For several billion years after the “Big Bang”, the earth was still just a cloud of dust. What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth became so violent that it was not clear whether the shape would last or not. It exploded loudly with fire and rock. They were in time to produce carbon, nitrogen, water vapor and other gases, which were to make the earth’s atmosphere. What is even more import ant is that as the earth cooled down, water began to appear on its surface.Water had also appeared on other planets like Mars but unlike the earth, it had disappeared later. It was not immediately obvious that water was to be fundamental to the development of life. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. This produced a chain reaction, which made it possible for life to develop.1.matter n. 事件; （讨论、考虑等的）问题; 重要性; 物质;vi.要紧，重要; 化脓; 有重大影响; 有重要性;2. combine v.使结合; 使化合; 兼有;例：If you combine two or more things or if they combine, they exist together.3. solid adj. 固体的4. globe n. 球体5.violent adj. 暴力引起的;剧烈的，（风，爆炸等）猛烈的，狂暴的;感情强烈的6. explode vi. 爆[突]发，发怒;激增，迅速扩大vt. （使）爆炸;突然（发出巨响，活跃起来，迸发感情）例：And one day the powder keg may explode.7. nitrogen n. 氮，氮气8. fundamental adj. 基础的，基本的，根本的，重要的，原始的，主要的，1. throw matter in all directions 把所有的物质丢向四面八方2. several billion years 几十亿年扩展：five billion years 五十亿年billions of years 几十亿年类似用法还有：hundred, thousand, million3. the dust settled into a solid globe （稳定）形成一个固体的球体4. in time 及时扩展：on time 准时at time 偶尔at times 有时，间或5. allow the earth to dissolve 允许地球溶解扩展：allow sb to do sth 允许某人做某事allow doing sth允许做某事6. make it possible for life to develop 使生命发展成为可能1. What is even more important is that as the earth cooled down, water began to appear on its surface. 更重要的是随着地球的冷却下来，水也开始出现在地球的表面上了。
这是一个主语从句，What is even more important是主语，是由what引导的一句话，以下是主语从句的具体考点和用法。
1．定义：用作主语的从句叫做主语从句。
2．构成：关联词+简单句3．引导主语从句的关联词有三类：○1.从属连词that例：That they were in truth sisters was clear from the facial resemblance between them.很明显，她们确是亲姐妹，她们的脸型很相似。
○2. 从属连词whether例：Whether he’ll come here isn’t clear.○3. 连接代词who, whom, whose, what, which, whoever, whatever, whichever 连接副词where, when, how, why例：What she did is not yet known. 她所做的事情还是未知。
How this happened is not clear to anyone. 任何人都不清楚这件事是如何发生的。
Whoever comes is welcome. 谁来都欢迎。
Wherever you are is my home ---- my only home. 你在哪我的家就在哪----我唯一的家。
其他用法：从句能用it作形式上的主语。
常以it作形式主语的句型有：○1. It+be+形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.)+that从句例：It is certain that she will do well in her exam. 很确定的是她会在考试中取得好成绩。
It is probable that he told her everything. 可能他已经告诉了她一切。
○2. It+be+名词词组(no wonder, an honor, a good thing, a pity, no surprise, etc.)+that从句。
例：It's a pity that we can’t go. 真遗憾我们不能去。
It's no surprise that our team should have won the game. 我们队赢得了比赛一点也不意外，○3. It+be+过去分词(said, reported, thought, expected, decided, announced, arranged, etc.)+that从句例：It is said that Mr. Green has arrived in Beijing. 据说格林先生已经到了北京。
It is reported that China has sent another man-made earth satellite into orbit.据报道中国发射了另一个人造卫星进入轨道。
○4. It+seem, happen等不及物动词及短语+that从句例：It seems that Alice is not coming to the party at all. 似乎Alice压根儿就不会来这个派对。
It happened that I was out that day. 它是在我不在家那天发生的。
○5.It+doesn’t matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句例：It doesn’t matter whether she will come or not. 她来不来无所谓。
It makes no difference where we shall have the meeting.我们在哪儿举行会议都一样。
○6. 当that引导的主语从句出现在疑问句中时，要以it作形式主语，而把主语从句后置例：Is it true that the scientist will give us a lecture next week? 下周那位科学家会给我们做演讲是真的吗？Does it matter much that they will not come tomorrow? 他们明天来不来真的有那么重要吗？○7. 当主语从句出现在感叹句中时，要以it作形式主语，而把主语从句后置。
例：How strange it is that the children are so quiet! 孩子们这么安静可真奇怪啊！注意：连接代词whoever, whatever, whichever等引导主语从句的含义例：Whoever comes will be welcome. (whoever=the person who) 来的人将受到欢迎。
Whatever he did was right. (whatever=the thing that) 他所做的事情是正确的。
Whichever of you comes in will receive a prize. (whichever=anyone of you who) 你们当中不论哪个进来将会得到奖。