Unit10 Connections Lesson1 语法过去时的被动语态课件-2023-2024学年高中英语北师大版（2019）选择性必修第四册

Passive forms in the past To learn about and practise the past passive 一. 英语的谓语动词有两种语态 We speak English. 主语 谓语 宾语 English is spoken by us. 主语 谓语 宾语 主动语态 被动语态 被动语态的基本结构：be + done (过去分词) 二、何时使用被动语态 1. 不知道动作的执行者是谁，或没有必要指出动作的执行者时。 The glass is broken. 玻璃杯破了。 Letters are collected at eight every morning. 信件每天早晨八点收取。 2. 为了强调或突出动作的承受者时。 The desk was made by Mr. Wang. 这张课桌是王师傅做的。 The bag was taken away by his sister. 那个口袋是她姐姐提走的。 3.It is said that+从句及其他类似句型 　　一些表示“据说”或“相信”的动词如believe, consider, expect, report, say, suppose, think等可以用于句型“It＋be＋过去分词＋that从句”或“主语＋be＋过去分词＋to do sth.”。 　　It is said that… 据说 It is said that the boy has passed the national exam. （＝The boy is said to have passed the national exam. ） 三.过去时态的被动语态 Read the sentences. Underline the passive forms. What tense is used in each sentence? 1. The concept was first talked about as long ago as in the 1920s. 2. In the 1950s, an attempt was made by two scientists to prove the theory mathematically. 3. Once the parcel had been received by this person, he/she would send the parcel onto a contact of theirs until the parcel could be personally delivered to the correct person. past simple passive past simple passive past perfect passive past simple passive 观察归纳 4. Its name was used as the title of a play and then a film. 5. Soon the game was being played in universities across the United States. past simple passive past continuous passive . 发现 (1)一般过去时的被动语态是由“________________________________________”构成。 (2)过去完成时的被动语态是由“________________________________________”构成。 (3)过去进行时的被动语态是由“________________________________________”构成。 was / were +动词ed形式 had been+动词ed形式 was / were being +动词ed形式 9 被动语态的时态和构成： 时态 构成 一般过去时 was/were+v-ed 过去进行时 was/were+being+v-ed 过去完成时 had+been+v-ed 过去将来时 would+be+v-ed 10 选用括号内合适的内容完成下面句子或对话。 1. This bag ________________ (was found, found) on the bus yesterday. 2. The dress ________________ (doesn’t wash, can’t be washed) in hot water. 3. This tower _________________