主语从句超全讲解加练习.pptVIP

主语从句的规律：找出下列句子中的错误，并总结规律 例1.When will he come is not known. 主语从句的规律： 例2. He will not come to the meeting this evening is true. 主语从句的规律： 例3. If the meeting will be put off has not been decided yet. 主语从句的规律： 例4. That whether he will help others is a fact. 主语从句的规律： 例5. When he will come are a puzzle. 主语从句的规律： 1. What he needs is that book. 2. What he needs are some books. 规律七、主语从句为了避免头重脚轻现 象，用 it 做形式主语，而 把从 句放在后面。 That the earth turns around the sun is known to all. 找出错误，并给出理由： 1.Where shall we spend the holiday isn’t decided. 2.You have made a mistake is a fact. 3. If the policeman will come is not certain. 4. That is certain that we can win. 5. It is ordered we should leave at once. 6. Where he comes from are a mystery. 7. What whether he likes the job is not clear. 8. Who he is and where he is from is important. 9.What he saw is the stars in the sky. 1. _____ you don’t like him is none of my business. 2. _____ he said at the meeting astonished everybody present 3. ________ the 2000 Olympic Games will be held in Beijing is not known yet. 4. ________ we’ll go camping tomorrow depends on the weather. 5. ________ leaves the room last ought to turn off the lights. * Grammar Grammar 主语从句： 做主语用的名词性从句，因其在复合句中做主语，又称主语从句，引导主语从句的有连词that ，whether， 连接代词who ，what ，which， 连接副词when，where， how， why等。 1）从属连词：that， whether等. that 引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。 That he will win is certain.他肯定会赢。 Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。 注意: 由that 引导的主语从句有时为了使句子结构平衡, 避免 “头重脚轻”, 常用 it 作形式主语, 而把从句放在后面。 例如: 1. That he will refuse this piece of advice is impossible. _______________________________________ _______________________________________ 2.That they should like each other is natural. _____________________________________ *it为形式主语 It is natural that they should like each other. It is impossible that he will refuse this piece of advice. 这样就构成了下面一些常