公开课_中考英语被动语态专题复习课件.pptVIP

步骤三：Exercises（针对练习，变被动语态） 1）They built the tall building last year. 2)He took good care of his little brother yesterday. 3)We cleaned our classroom just now. 4)They used this room for resting. festival.swf 中考被动语态之一 一、被动语态概述  英语的语态共有两种：主动语态和被动语态。 主动语态表示主语是动作的执行者，被动语态表示 主语是动作的对象。 及物动词才有被动语态，汉语往往用被、受、给等词来表示被动意义。 如：他们讲英语。 They speak English.（主动语态）　 English is spoken by them. （被动语态） 　 二、被动语态的构成 　被动语态由“助动词be+及物动词的过去分词”构成。被动语态的时态变化只改变be的形式，过去分词部分保持不变。 各种时态的被动语态构成 一般现在时被动： 一般过去时被动： 一般将来时被动： 主语+am/is /are + 过去分词 主语+was/were + 过去分词 主语+will + be + 过去分词 The flowers 主(承受者) every day. are watered by her She waters the flowers every day. 主(执行者) 谓 宾(承受者) 主动语态 被动语态 宾语 → 谓语 → 主语 → 其他 → 主语 be+ P.P(过去分词) by +宾语 顺口溜：宾变主，主变宾，by短语后面跟；谓语动 词变被动，be后“过分”来使用。 探究 主动变被动的方法: 抄下来 They make shoes in that factory. 主(执行者) 谓 宾(承受者) 一般现在时的被动语态： 主语+am/is /are +过去分词 Shoes 主语（承受者） are made (by them) in that factory. 主动语态： 被动语态： He looked after the little baby yesterday. 主 谓(动介) 宾(承受者) The little baby 主(承受者) was looked after by him yesterday . 主动语态： 被动语态： 2. They bought ten computers last term． last term. 一般过去时的被动语态： 主语+was/were +过去分词 Ten computers were bought by them Tom will clean the room tomorrow. 主 谓 宾(承受者) The room will be cleaned by Tom tomorrow. 一般将来时的被动语态： 主语+will+be+过去分词 一般现在时被动： 一般过去时被动： 一般将来时被动： 主语+am/is /are + 过去分词 主语+will + be + 过去分词 主语+was/were + 过去分词 各种时态的被动语态构成 被动语态的用法 Football is played all over the world． My bike was stolen．我的自行车被盗了。 一、行为主体不明确，不必说出或者无法说出动作的执行者时。eg： 二、不易找到或根本就不可能找到动作的执行者时。eg： 二、用所给动词的正确形式填空 1. Too much water_______by him every day. (drink) 2. Two apples _________ by Tom just now. (eat) 3. He _______ a model plane by hand tomorrow.(make) 4.-Did you go to the party last night? -No,I wasn,t ______.(invite) 一、用b