可用高中英语被动语态PPT课件

主语
谓语 宾语
二、被动语态的一般结构：
动词的被动语态由“助动词be+及物动 词的过去分词”构成。当主动句变为被 动句时，原来的宾语变成了主语，原来 的主语变成了介词by 的宾语。主动句与 被动句Fra Baidu bibliotek结构虽然不同，但动作的执行 者和承受者的关系并没有改变。
即：be+ done (+ by)
结构： be+ done (+ by)
The task has been finished. 任务已经完成了。
三、各种时态的被动语态：
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Grammar The passive voice
一、被动语态的定义：
语态(voice)是个语法范畴，它是一种动词形 式，表示动词的主语与该动词所表示的动作之 间的主动和被动关系。当主语是动作的执行者 时，动词用主动语态（Active Voice）；如果 主语是动作的承受者，动词便用被动语态 （Passive Voice）。
在被动句中有时用by- 词组，有时不用。一般 来说，当动作的执行者为谁不甚清楚，不甚重 要或难以说出时，通常不用by。但有时为了强 调动作执行者或者由于上下和结构上的需要则 必须使用 by 词组。例如：
Hamlet was written by Shakespeare. 《哈姆雷特》是莎士比亚写的。
Grammar The usage of the future passive voice
将来时的被动语态
1.We will discuss the problem at the meeting.
The problem will be discussed at the meeting.
2.I will finish my homework in ten minutes. My. Homework will be finished in ten minutes. 3.They will invite us to the party. We will/shall be invited to the party.
将来时的被动语态的基本形式： 主语+will/shall be done…… Shall 用于第一人称，will用于各种人称
Have a try!
Turn the following sentences into the future passive voice. They will have a show tomorrow. A show will be had (by them) tomorrow.
We cleaned the classroom yesterday. 昨天我们打扫了教室。
The classroom was cleaned by us yesterday. 昨天教室被我们打扫了。
主语 We
谓语 speak
宾语 English. 主动语态
English is spoken by us. 被动语态
practice
1.The rabbits will eat the carrots.
被动形式：
The carrots will be eaten by the rabbits.
被动句的一般疑问句：
Will the carrots be eaten by the rabbits?
对被动句划线部分提问：
He will give a talk soon. A talk will be given(by him) soon.
一般将来时的被动语态在各种句式中的用法
The 30th Olympic Games will be hosted by London in the year 2012.
否定式：主语+will/shall not be done… The 30th Olympic Games will not be hosted by London in the year 2012. 一般疑问式：Will +主语+be done…? Will the 30th Olympic Games be hosted by London in the year 2012? 特殊疑问式：特殊疑问词+will+主语+be done…? When will the 30th Olympic Games be hosted in the year 2012?
What will be eaten by the rabbits?
工作将于三小时后完成。 The baby must be looked after well. 这孩子必须被好好照顾。
The structure of the simple future voice shall/will do sth. be going to do sth. be to do sth. be about to do sth.