Unit 5 The Power of nature Period 2　Learning about Language Using Language 课件（人教版选修6，课标通用）.ppt

(1)以上结构中 it是形式主语，它所代替的是后面的 that引导的主语从句。以上结构均可转化为“主语＋be＋过去分词＋不定式”结构，其中不定式根据需要有时态和语态的变化。 It is said that he has gone abroad. ＝He is said to have gone abroad. 据说他出国了。 (2)有时以上结构还可转化为：“as＋be＋v.-ed，主句”结构，或者“what＋be＋v.-ed＋is＋that从句”结构。 It is known to all that China is a country with a long history. ＝As is known to all, China is a country with a long history. ＝What is known to all is that China is a country with a long history. 众所周知，中国是一个历史悠久的国家。 【句型转换】 ①John is reported to be one of the best teachers in the school. ＝________ ________ ________ ________ John is one of the best teachers in the school. ②It is said that he has written a new book about workers. ＝________ ________ ________ ________ ________ ________ a new book about workers. It is reported that　 He is said to have written 【单项填空】 ③________in ancient times people were used to working together. A．It says B．What says is that C．It thought that D．It is said that 解析　It is/was said that...意思是“据说……”。还可以表达为People say that...。 答案　D ④Leonardo da Vinci (1452～1519)________birds kept in cages in order to have the pleasure of setting them free. A．is said to be buying B．is said to have bought C．had said to buy D．has said to have bought 解析　考查 be said to do sth这一结构。不定式动作发 生在 be said 之前，所以要用不定式的完成时，所以答案为B项。 答案　B ⑤It is often________that human beings are naturally equipped to speak. A．said B．to say C．saying D．being said 解析　句意：经常听人说人类天生具有说话的能力。It is said that...为固定句式，意为“据说……”。 答案　A 【完成句子】 ①This river is dangerous to ________ ________. 在这河里游泳危险。 ②Hell be ________ ________ ________ this time tomorrow. 明天这个时候他要洗澡。 ③He ________ ________ ________ ________ every morning. 他每天早晨都洗冷水澡。 ④Lets ________ ________ ________ ________ ________ in the river. 我们到河里去洗澡吧。 bathe in　 having a bath　 takes a cold