初中英语课件：被动语态.pptVIP

* 一般现在时态的被动语态结构: am/is/are + vt 过去分词 一般过去时态的被动语态结构: was/ were + vt 过去分词 含有情态动词的被动语态结构: 情态动词+be+ vt 过去分词 一般将来时的被动语态结构: will/shall +be + vt 过去分词 现在进行时态的被动语态结构: am/ is /are+being + vt 过去分词 过去进行时态的被动语态结构: was / were + being+ vt 过去分词 现在完成时态的被动语态结构: have/has been + vt 过去分词 知识点再现:被动语态 结构：be +动词的过去分词 意义：强调主语是动作的承受者 何时使用 变化方法 注意事项 变化： 示例 The boy broke the glass. The glass was broken by the boy. 从主动语态变为被动语态 1.主语 介词by 宾语 2.谓语 加be,并变为过去分词 3.宾语 主语 1.一般可变为被动语态的动词为及物动词 2.be动词可根据人称、时态、数进行变化. 3.不特别强调动作执行者时，by短语(即 by和后面的宾语)一般可以省略 注意事项： 不知道或者没必要说明动作执行者是谁 根据上下文，需要强调动作的承受者 可以带宾语的短语动词和及物动词一样可以用于被动语态, 但要注意不可丢掉后面的副词或介词. 五种时态变化 特殊情况下的变化1 含有 情态动词 特殊情况下的变化2 实站演练 The farmers are planting trees. 1. (变为一般现在时态被动语态) 2. (变为一般过去时态被动语态) 3. (变为一般将来时态被动语态) Trees are planted by the farmers. Trees were planted by the farmers. Trees will be planted by the farmers. 4. (变为现在进行时态被动语态) 5. (变为现在完成时态被动语态) Trees are being planted by the farmers. Trees have been planted by the farmers. This work may_________ today.（finish） Can my bike ____________ here? (mend) The cars can’t _____________ here.（park ） 含有情态动词的被动语态，情态动词后面的be 动词用原形 be finished be mended be parked 1.We call Mr. Smith a living Lei Feng. Mr. Smith_________ a living Lei Feng (by us). 2.Tom’s father bought him a book. He _____________ a book (by his father) 复合宾语或者双宾语的句子要注意: 一般情况下把指人的宾语作为被动句的主语. was bought is called 1. Please pass the book to Lily. The book is passed to Lily by you please. 2. He gave me a beautiful present. I was given a beautiful present by him. 感官动词(hear, see, watch, feel, notice等)和使役动词(let ,make have等)在主动语态中后接不带to的动词不定式,但是改为被动语态时, 把to加在动词原形之前. They made the boys work 12 hours a day. The boys were made to work 12 hours a day. We often see him go for a walk by the river. He is often seen to go for a walk by the river. 1. The teachers often make us read books in the morning. We are often made to read books in the morning by the teachers. 2. We no