高中英语选修七 Unit 03 B.ppt

Discovering useful words and expressions;Key to Ex. 2.;Discovering useful structures;Key to Ex. 2.; ;一、行为主体不明确，不必说出或者无法说出动作的执行者时。例如： Football is played all over the world． 二、不易找到或根本就不可能找到动作的执行者时。例如： My bike was stolen．我的自行车被盗了。 ;三、汉语中含有“据说”、“据悉”、“有人说”、“大家说”等时。例如： It is said that one day he climbed to the top of a house. It was reported that her mother died of SARS. 众所周知…… It is well known that... 据推测说…… It is supposed that…;四、汉语中???有“被”、“由”等词时。 例如： Wei Hua was asked to come by Lin Tao． 魏华是被林涛叫来的。 五、某些句子习惯上用被动语态。 例如： He was born in October, 1989． ;六、表示礼貌时。 例如： You are friendly invited to come to our English party at 8:00 p.m. tomorrow． 敬请您明天晚上8：00光临我们的英语晚会。 ;V-ing 形式由 “do＋ing” 构成， 其否定形式是 “not doing”, V-ing 可以带宾语或状语构成 V-ing 短 语，没有人称和数的变化，但有 时态和语态的变化。;　 语态 时态;当非限定性动词-ing的逻辑主语 是-ing所表示的动作对象时要用 -ing的被动形式，包括其一般形式 “(not) being?+?-ed分词和完成形式 “(not) having?been?+-ed分词” 。;???? 当动词-ing 形式的逻辑主语是 动作的承受者时，就要用动词-ing 形式的被动语态。???? 动词-ing形式的被动语态和它的 主动语态一样，在句中可以作主语、 宾语、定语、状语。;1. Being killed by sharks in the sea is a common thing. 2. Being helped out by the killer whales, the whalers were able to make successful kill.;???? ______ to sunlight for too much time will do harm to one’s skin. (上海高考题 2002)?????A. Exposed????? B. Having exposed????????C. Being exposed????? D. After being exposed;He was afraid of being scolded by the teacher. 2. I remember having been told the story.?? 3. I didn’t like the idea of being thrown about in a boat on a rough sea.?;V-ing 形式既可作动词的宾语, 也可作 介词的宾语。 ★ The bird escaped ______________ (catch). ★ He was afraid of _______________ (abandon) by us.;在 avoid, admit, appreciate, complete, consider, delay, enjoy, escape, excuse, finish, forgive, imagine, mind, miss, practise, risk, suggest, give up, put off, feel like, insist on 等后只接V-ing形式作宾语。;The problem being discussed now is very important. 2. The house being built will be our library upon its completion. ;1. Being