高中英语语法：看一个表格就可以学完所有被动语态课件.pptVIP

被动语态 一、什么是语态？ 语态是英语动词的一种表现形式，用来说明主语和 谓语动词之间的关系。 二、语态的种类： （1）主动语态 （2）被动语态 三、什么是主动语态？什么是被动语态？ 四、被动语态的构成：(八种时态下的被动语态） be + 及物动词的过去分词 can/may/must…+ be +过去分词 ? Tom broke the window.???? （主动语态） ①??? ? ②??????? ??? ③ The window was broken by Tom. （被动语态） ③??????????? ???? ②???????????????? ① 英语的谓语动词有两种语态 主动语态 被动语态 （前者表示句子的主语为动作的发出者， 后者表示句子的主语为动作的承受者。） 注意：只有及物动词才有被动语态。 及物动词 后面必须跟宾语意义才完整的实义动词，叫做及物动词(transitive verb)。如： I believe that the committee will consider our suggestion. 我相信委员会将会考虑我们的建议。 “How long can I keep the book ?”Harry asked. 哈里问：“这本书我可以借多久?” 不及物动词 本身意义完整，后面不必跟宾语的实义动词，叫做不及物动词(intransitive verb)。 如： Birds can fly. 鸟会飞。 She spoke at the meeting yesterday evening. 她在昨天晚上的会上发了言。 1.被动语态结构： be + 过去分词(PP) + (by …) 2.如何从主动语态变为被动语态？ 1. The boy broke the glass. The glass was broken by the boy. 2. The boy is reading a book. The book is being read by the boy. 1.主语 2.谓语 3.宾语 介词by 宾语 be+过去分词 主语 课堂练习 （一）改写句子 1. We plant trees in spring every year. _________________ by us in spring every year. 2. She posted the letter yesterday. ____________________ by her yesterday. 3. Mr Turner gave me a birthday present. _______________a birthday present by Mr Turner. 4. He is drawing a picture. _______________________ by him. 5. You may hand in your homework tomorrow. ______________________________ by you tomorrow. 6. She is going to write a letter. __________________________ by her. Trees are planted The letter was posted I was given A picture is being drawn Your homework may be handed in A letter is going to be written 7. I have given you the new book. __________________________ to you. 8. Her bag cannot be found by her. _________________ her bag. 9. Do you often hear her sing Russian songs? _________________________Russian songs by you? 10. She doesn’t let her son swim in the river. _______________________ in the river by her. 11. The bridge was being built by them at this time