Unit 1 Science Fiction Discover Useful Structures 被动语态课件-2022-2023学年高中英语人教版（2019）选择性必修第四册

【版本：新人教　册别：选择性必修四】 Review useful structures UNIT1 SCIENCE FICTION Scan the reading text and underline all the verbs in the passive voice. Then discuss with a partner why the passive voice is used. It was going to be tested out by Larry’s wife, Claire. (para 1) … but Larry persuaded her that the robot wouldn’t harm her or allow her to be harmed. (para 2) Now she was being looked after by a robot that looked so human, and it was disturbing. (para 3) … she was being offered sympathy by a robot, … (para 4) As he was not allowed to accompany her to the shops, … (para 6) So she rang Tony and told him she was being treated badly. (para 6) How awful to be discovered by her, Claire thought. (para 6) … , which was being completely transformed, would be ready. (para 7) Discuss with a partner why the passive voice is used. (P5 E1) The passive voice is used to focus on the person or object that experiences an action rather than the person or object that performs the action. It is used when we don’t know the performer, or the performer is unimportant (and therefore omitted), or the performer is to be highlighted (and therefore placed toward the end). 语态用来表示主语与谓语之间的关系。 主动语态表示主语是动作的执行者 被动语态表示主语是动作的承受者 什么时候常用被动语态? 不知道动作的执行者 没有必要指出动作的执行者 强调动作的承受者 The introduction of the passive voice: The basic composition of the passive voice 一般时 进行时 完成时 现在时 过去时 将来时 am / is / are done am / is / are being done was / were done shall / will be done was / were being done had been done shall / will have been done has / have been done Review and Recall 特殊结构的被动形式 (1) 双宾动词的被动结构 例：He gave her some money.  She was given some money.  Some money was given to her. 带有双宾语的主动句，变被动句时，一般把“人”提前作主语；将“物”提前则要在“人”的前面加 to 或 for。 Review and Recall 带复合宾语的动词变被动语态时, 一般将主动结构中的宾语变为被动结构中的主语, 而将宾语补足语保留不动(这时的宾语补足语为主语补足语)。 (2) 带复合宾语的动词的被动结构 例：His father called him Jack. He was called Jack by his father. Review and Recall (3)“it + be + 过去分词 + 从句”式的被动结构