名词性从句--主语从句.ppt

名词性从句（一 ）,主语从句,主语从句,把两句话合并成一句话 1. Tom will win the tennis game. It seems impossible. That Tom will win the tennis game seems possible.,主语,连系动词,表语,That Tom will win the tennis game seems possible.,连系动词,表语,主语从句,主句,主语从句： 在主句中担当主语的是一个从句，这个从句就叫主语从句。 引导词： 从属连词：that, whether 关系代词：who, whom, what which, whose 关系副词：when, where, why,由that引导主语从句,例句： 把两句话合并成一句话 Light travels in straight lines. It is known to all. That light travels in straight lines is known to all. 2. We should wash our hands before meals. It is necessary. That we should wash our hands before meals is necessary.,由that引导主语从句,把两句话合并成一句话 3. Every student should have a study plan. It is necessary. That every student should have a study plan is necessary. 4. Students say hello to their teachers. It is polite. That students say hello to their teachers. is polite.,由that引导主语从句,把两句话合并成一句话 5. Your mother didnt attend the party yesterday. It is a pity. That your mother didnt attend the party yesterday is a pity. 6. Tom stole his classmates money. It is a fact. That Tom stole his classmates money is a fact.,由that引导主语从句,把两句话合并成一句话 7. There will be rainy tomorrow. It is possible. That there will be rainy tomorrow is possible. 8.Teenagers smoke. It is wrong. That teenagers smoke is wrong.,由 whether （“是否”）引导的主语从句,Will he go abroad? It is not known. Whether he will go abroad is not known. 2. Will it rain tomorrow? It is not known. Whether it will rain tomorrow is not known. 3. Is he a policeman? It is not clear. Whether he is a policeman is not clear. 4.Is the film star happy? It is not clear. Whether the film star is happy is not clear.,由 whether （“是否”）引导的主语从句,在主语从句中只能用 whether （是否），此意义时不能用 if 替换。,我是大王 我说了算,形式主语It代替that 主语从句,That we study English well is necessary. It is necessary that we study English well.,我是傀儡,形式主语,真正主语,第一种： 形式主语It代替that 主语从句,It is + 名词 + that 从句 It is a pity that It is a shame that It is a fact that . It is an honor that. 等等,形式主语It代替that 主语从句,1.That John won a gold medal is a fact. It is a fact that John won a gold medal. 2. That I missed the beginning of the film is a pity. It is a pity that I missed the beginning of the film . 3. That we will go travelling is good news. It is good news that we will go travelling.,4. That my mother lost her new wallet is a pity. It is a pity that my mother lost her new wallet. 5.That Marry married a blind man is a pity. It is a pity that Marry married a blind man. 6. That Marry told a lie to her head-teacher is a surprise. It is a surprise that Marry told a lie to her head-teacher.,第二种：形式主语It代替that 主语从句,It is important that It is necessary that It is polite that. It is wrong that等等,It is + 形容词+ that,把两句话合并成一句话,例句 That light travels in straight lines is right It is right that light travels in straight lines. That he got a gold medal is real. It is real that he got a gold medal.,把下列句子用it 做形式主语,That Tom will win the game is possible. It is possible that Tom will win the game. 2. That we should wash our hands before meals is necessary. It is necessary that we should wash our hands before meals. 3. That we must complete this work before 5 oclcock is necessary. It is necessary that we must complete this work before 5 oclcok.,第三种：形式主语It代替that 主语从句,It +不及物动词 +that 1) That I met my Geography teacher in the street happened. It happened that I met my Geography teacher in the street . 2) That I picked a red wallet on the way to school happened. It happened that I picked a red wallet on the way to school. 3) That the manager and the boss went travelling happened. It happened that the manager and the boss went travelling.,第四种:形式主语It代替that 主语从句,It + be + 过去分词 + that It is said that 据说. It is reported that 据报道 It is known to all that . 众所周知. It is believed that . 人们相信 It is thought that . 人们认为.,It + be + 过去分词 + that,That his father has gone to Tianjin is said. It is said that his father has gone to Tianjin. 2. That ten persons died in the accident is reported. It is reported that ten persons died in the accident. 3. That the earth was not round was believed in ancient times. It was believed in ancient times that the earth was not round.,It + be + 过去分词 + that,4. That it will rain tomorrow is believed It is believed that it will rain tomorrow. 5.That the waiter works hard is thought. It is thought that the waiter works hard. 6. That the American president will visit China is reported. It is reported that the American President will visit China.,that 省略问题,That it will rain tomorrow is believed that 放句首不能省略 It is believed that it will rain tomorrow. that 放在句尾不省略，但偶尔在口语中有省略的。,关系代词： what which who whom等引导主语从句,例句 Whom did the boy help? She is an old woman. Whom the boy helped is an old woman. Where does he live? It is Beijing. Where he lives is Beijing.,关系代词： what which who whom等引导主语从句,把两句话合并成一句话 1.What do their parents need? It is more experience. What their parents need is more experience. 2.Which doctors will be sent to Wenchuan? It has not been decided. Which doctors will be sent to Wenchuan hasnt been decided. 3. What color does the girl like? It is pink. What color the girl likes is pink.,关系代词： what which who whom等引导主语从句,把两句话合并成一句话 4. What did he lose? It is a brown handbag. What he lost is a brown handbag. 5. Which teacher will teach the students Geography. It hasnt been decided. Which teacher will teach the students Geography hasnt been decided.,关系副词：where why when引导主语从句,Where did he go ? It hasnt been known. Where he went hasnt been known. 2.Why is he late for school? It is not clear. Why he is late for school is not clear. 3.When does the plane take off? It is clear. When the plane takes off is clear. 4.Where does he often go for a walk? It is in the park. Where he often goes for a walk is in the park.,关系副词：where why when等引导主语从句,1. Why is the baby crying？It has not been known. Why the baby is crying has not been known. 2. How should he do it? It is still a problem How he should do it is still a problem. 3.Where did he put the box? It is on the table. Where he put the box is on the table. 4.When does his mother go home？ It is 5 oclock. When his mother goes home is 5 oclock.,Thank you,