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1、主语从句适用学科英语适用年级高三适用区域全国课时时长（分钟）60 分钟知识点主语从句连接词的基本用法教学目标能够正确分析从句结构；掌握连接词的基本用法教学重点掌握 that 、what、whether等的用法，能够正确判断从句所缺成分教学难点It 做形式主语精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页，共 27 页教学过程一、 课堂导入What part serves as subject in each sentence? A tree has fallen across the road. You are a student. To
2、find your way can be a problem. Smoking is bad for you. “How do you do? ” is a greeting. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页，共 27 页二、复习预习给出主语从句，分析成分：What she said is not yet known. That we shall be late is certain. It is certain that we shall be late. 精选学习资料 - - - - - - - - - 名师归纳总结 -
3、 - - - - - -第 3 页，共 27 页三、知识讲解知识点 1：主语从句的概念及其连接词：用作主语的从句叫主语从句，它是名词性从句之一。引导主语从句的连接词有：连词 that, whether；连接代词 who, what 和 which；连接副词 when, where, how和 why 等。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页，共 27 页知识点 2：连接词的用法。1. 【考查点 】that 无意义，只起到引起从句的作用That they are badly in need of help is quite clea
4、r. 他们急需帮助，这是十分明显的。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。That one believes in oneself in doing everything is very important. That he beat his opponent in the tennis game encouraged his teammates. 精选学习资料 - - - - - - - - - 名师归纳总结 - - -
5、- - - -第 5 页，共 27 页2. 【考查点 】what 有意义， “ 所的” 或随句子意思而定。在从句中作主语，宾语和表语。What the teacher said today was quite right. 老师今天说的话是十分正确的。What makes her different from others is her strange behavior. What she did is not yet known. 她干了什么尚不清楚。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 6 页，共 27 页3.【考查点】whether
6、 有意义， “ 是否” 。Whether they will sell the house is not yet decided. 他们是否卖掉这所房子还没有决定。Whether it is true is not certain. Whether he ll come here isnt clear. 他是否会来这里还不清楚。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 7 页，共 27 页4. 【考查点 】when 引起表示时间的主语从句，意思是“ 的时候” 或“ 何时”When we can get rid of the rubbish i
7、s still unknown. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 8 页，共 27 页5. 【考查点 】where 引起表示地点的主语从句，意思是“ 在的地方 ” 或“ 到的地方 ”Where the meeting will be held hasnt been decided.精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 9 页，共 27 页6. 【考查点 】how 引起表示方式的主语从句，意思是“ 的方式” 或“ 如何”How we can get in touch with h
8、im is the most important. How this happened is not clear to anyone. 这事怎么发生的，谁也不清楚。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 10 页，共 27 页7. 【考查点 】why 引起表示原因的主语从句，意思是“ 的原因” 或 “ 为什么 ”Why he said that rubbish at the meeting puzzled me. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 11 页，共 27 页8. 【考查
9、点 】who “ 谁” ， whose“ 谁的”Who will be chosen is the topic of conversation now. Whose handwriting is the most beautiful is very clear now. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 12 页，共 27 页9. 【考查点 】疑问词 +ever 也可以引起主语从句Whatever was said here must be kept secret. 这里说的话都应当保密。Whoever makes mistakes
10、must correct them. 凡犯了错误的人都必须改正。Whoever fails to see this will make a big mistake.精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 13 页，共 27 页知识点 3：常以 it 作形式主语的句型(1) It + be + 形容词 （obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc. ）+ that 从句。It is ce
11、rtain that she will do well in her exam. 毫无疑问，她考试成绩会很好。It is probable that he told her everything. 很可能他把一切都告诉她了。It is true that the Chinese volleyball team once won six world championships. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 14 页，共 27 页(2) It + be + 名词词组（ no wonder, an honor, a good thin
12、g, a pity, no surprise, etc. ） + that 从句。It is a pity that we cant go. 很遗憾我们不能去。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 15 页，共 27 页(3) It + be +过去分词 (said, reported, thought, expected, decided, announced, arranged, etc.) + that从句。It is said that Mr. Green has arrived in Beijing. 据说，格林先生已经到了北京
13、。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 16 页，共 27 页(4) It + seem, happen 等不及物动词及短语+ that 从句。It happened that I was out that day. 碰巧我那天外出了。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 17 页，共 27 页(5) It doesnt matter (makes no difference etc.)+连接代词或连接副词引起的主语从句。It doesnt matter whether she wi
14、ll come or not. 她是否来这无关紧要。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 18 页，共 27 页(6) 当 that 引导的主语从句出现在疑问句中时，要用it 作形式主语，而把主语从句后置。Does it matter much that they will not come tomorrow? 他们明天不来很要紧吗？精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 19 页，共 27 页(7) 当 主语从句出现在感叹句中时，要用it 作形式主语，而把主语从句后置。How str
15、ange it is that the children are so quite. 孩子们这么安静真奇怪。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 20 页，共 27 页知识点 4：1.【考查点 】在 It is insisted/ordered/commanded/suggeste d/advised/proposed/demanded/required/requestedthat 结构中，谓语动词常用should+动词原形。It is suggested that we should think twice before we act.
16、 It is requested that we should change the old instrument. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 21 页，共 27 页2.【考查点 】在 It is necessary/important/strange/surprised that或 It is a pity/shame that 结构中，用should + 动词原形It is a pity that he should go without telling anyone. It is a pity that you shou
17、ld miss the bus. 真遗憾，你错过了那班公共汽车。It is necessary that you should tell him the truth. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 22 页，共 27 页知识点 5：单个的主语从句作主语时谓语动词用单数；由 and 连接的两个主语从句作主语时，谓语动词用复数。When we will go to Australia is not decided. Who will go there and when they will go there are not known.
18、 How and why they have done that is not known. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 23 页，共 27 页四、例题精析【例题 1】_ makes the book so extraordinary is the creative imagination of the writer. A. That B. What C. Who D. Which 【答案】 B 【解析】 本题考查主语从句的关系词辨析。句意：让这本书如此不同寻常的是作者富于创造的想象力。精选学习资料 - - - - - - -
19、- - 名师归纳总结 - - - - - - -第 24 页，共 27 页【例题 2】_ the delayed flight will take off depends much on the weather. A. Why B. When C. That D. What 【答案】 B【解析】 本题考查主语从句的关系词辨析。句意：延误了的航班何时起飞主要取决于天气。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 25 页，共 27 页【例题 3】Exactly _ the potato was introduced into Europe is
20、uncertain, but it was probably around 1565. A. whether B. why C. when D. how 【答案】 C【解析】 本题考查主语从句的关系词辨析。句意：准确地说，土豆是什么时候被引进欧洲的还不确定，但可能是在1565 年左右。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 26 页，共 27 页课程小结本节课主要围绕主语从句的概念及其连接词的基本用法进行讲解。要求学生学会正确分析从句的成分，并选出正确的连接词。此外，最好能把主语从句的基本用法和作文相结合来进行训练，为作文打好基础。同学在做题时要认真分析题目，灵活地运用所学的语法知识。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 27 页，共 27 页
