英语语法主语从句公开课课件讲解学习

1、英语语法主语从句公开课课件I like English.The train left.( (名词名词） （不定式）（不定式） （动名词）（动名词） ( (从句）从句） , 它是名词性从句之一。它是名词性从句之一。引导主语从句的连接词有：引导主语从句的连接词有：从属从属连词连词that, whether；连接代词；连接代词who, what和和which；连接副词；连接副词when, where, how和和why。 1.了解名词性从句的基本用法，掌握名词性从句的引导词及引导词在名词性从句中的作用，辨析that与what,if与whether等引导词的用法。 2.明确it作形式主语和形式宾语、代

2、替主语从句及宾语从句的用法，及其与强调句的区别。 3.区分that引导的同位语从句及定语从句。 That he will come is certain. Whether he will come is uncertain.引导词引导词1) 从属连词从属连词that和和whether：thatthat是否是否whetherwhetherifif Who will go makes no difference. What we need is more time. Which book I shall choose hasnt been decided.2) 连接代词连接代词who, what,

3、 which引导词引导词 Whoever comes is welcome. Whatever I have is yours. Whichever you want is yours.3)连接代词连接代词whoever, whatever, whichever引导词引导词 whatever=anything that whoever=anyone who When we will leave hasnt been decided. How she keeps healthy is a secret. Why he cries is not clear. Where the meeting w

4、ill be held is not known.4) 连接副词连接副词when, where, how ,why引导词引导词1.引导词引导词： 从属连词从属连词 that, whether； 连接代词连接代词 who, what, which； whoever, whatever, whichever; 连接副词连接副词 when, where, how和和why。2. 语序语序：陈述句语序：陈述句语序3. 主语从句的特点：主语从句的特点：It is certain that he will win the match.That he will win the match is certai

5、n. 注解：一般来说主语从句都是放在注解：一般来说主语从句都是放在 ,但有时为了使句子但有时为了使句子 ，避免，避免头重脚轻头重脚轻,常用常用 作作 ，从而把主语从句放在，从而把主语从句放在 句首句首保持平衡保持平衡 it 形式主语形式主语后面后面这样就构成了下面一些常用句型这样就构成了下面一些常用句型: 1) It is + n. +that It is a pity/shame that. 可惜的是可惜的是 It is a surprise that 令人吃惊的是令人吃惊的是 It is a fact that 事实是事实是 It is common knowledge that 是常识是

6、常识 *_(很可惜很可惜)we lost the match.*_(这是事实这是事实)he cheated in the exam.It is a pity thatIt is a fact that1. 令人吃惊的是他改变了主意。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。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。事实是我们周围的污染正变得越来越严重。 It i

7、s a fact that the pollution around us is becoming more and more serious.2) It is + adj. +that Its certain that 肯定肯定 It is possible/likely that. 很可能很可能 It is obvious/clear that 很明显很明显 It is true that的确的确 It is necessary important natural. that*_(很可能很可能)she will come back tomorrow.*_(很明显很明显) he is an

8、English.+(should) +doIt is possible thatIt is obvious that1. 很可能他会申请这项工作的。很可能他会申请这项工作的。 It is likely that he will apply for the job.2. 的确我犯了个错误。的确我犯了个错误。 It is true that I made a mistake.3. 有必要我们要学习英语。有必要我们要学习英语。 It is necessary that we should learn English.3) It +不及物动词不及物动词+that It happened that. 碰

9、巧碰巧 It hit/struck/occurred to me that我突然想我突然想起起 It appears/seems that 似乎，好像似乎，好像 It turned out that 原来原来*_(刚好刚好)I was out yesterday.*_(我突然想起我突然想起)I forgot to send the letter.It happened thatIt occurred to me that1. 好像是我错了。好像是我错了。 It appears that I am wrong.2. 碰巧他得去参加一个会议。碰巧他得去参加一个会议。 It happened tha

10、t he had to attend a meeting.3. 我突然想起他会说英语。我突然想起他会说英语。 It occurs to me that he can speak English.4. 原来他是原来他是Mary的朋友。的朋友。 It turned out that he was Marys friend.4) It + be +过去分词过去分词+从句从句 It is said that. 据说据说 It is known to all that. 众所周知众所周知 It is reported that. 据报道据报道 It is believed that.据相信据相信;人们相

11、信人们相信 It is suggested that + (should）do. 建议建议*_(据报道据报道)20 people were killed in the accident. *_(建议建议)we should eat more vegetable and do more exercise.It is reported thatIt is suggested that1.据说他已经去了上海。据说他已经去了上海。Its said that he has gone to Shanghai.2. 众所周知台湾是中国的一部分众所周知台湾是中国的一部分.It is known to all

12、that Taiwan is part of China.3. 有人建议我们应该多做运动。有人建议我们应该多做运动。It is suggested that we should take more exercise.例1.When will he come is not known.规律一、规律一、主语从句一律用陈述语序，主语从句一律用陈述语序， 即主语在前，谓语在后。即主语在前，谓语在后。正：When he will come is not known.例2. He will not come to the meeting this evening is true.正：That he wil

13、l not come to the meeting this evening is true.规律二、规律二、连词连词that 在从句中无实际意义，在从句中无实际意义， 但不能省略。但不能省略。例3. 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.例4. When he will come are a puzzle.正：When he will come is a puzzle.规律四、规律四、主语从句

14、的谓语动词多用主语从句的谓语动词多用 单数第三人称形式。单数第三人称形式。When the meeting will begin _ (have) not been decided yet .hasWhen they will start and where they will go _(be)still unknown.When and where the meeting will begin _ (have) not been decided yet .arehas例例5 1. What he needs _ that book. 2. What he needs _some books.

15、规律五、规律五、what 引导的主语从句，可根据引导的主语从句，可根据 表语决定主句动词的单复数形式表语决定主句动词的单复数形式。isare他是不是我的孩子仍然是个问题。他是不是我的孩子仍然是个问题。Whether he is my child remains a question.What I like most is your hairstyle.我最喜欢的我最喜欢的是你的发型。是你的发型。What I need is rest.我需要的就我需要的就是休息。是休息。How Du Lala becomes successful depends on her hard work.杜拉拉如何成杜

16、拉拉如何成功取决于她的功取决于她的勤奋。勤奋。It is common knowledge that we should wear rain shoes on rainy days.雨天要穿雨鞋（雨天要穿雨鞋（rain shoes）是常识。）是常识。链接高考链接高考 【2013北京】31._makes the book so extraordinary is the creative imagination of the writer. A. That B. What C. Who D. Which 【2013四川】6. _ you said at the meeting describes

17、a bright future for the company. A. When B. How C. What D. That 【2013天津】15. _I want to tell you is the deep love and respect I have for my parents. A. That B. Which C. Whether D. What 【2013重庆】28. _ struck me most in the movie was the fathers deep love for his son. A. That B. It C. What D. Which 【201

18、3江西】30._ one of you breaks the window will have to pay it. A. Whoever B. Whatever C. Whichever D. Wherever 【2013陕西】20. It remains to be seen_ the newly formed committees policy can be put into practice. A. that B. which C. what D. whether 【2012新课标全国I】24. It is by no means clear_ the president can do to end the strike. A. how B. which C. that D. what【201