九年级上Unit5教案一、语法——被动语态主动语态和被动语态 主动:主语是动作的执行者语态 被动:主语是动作的承受者,动作的执行者由by引起的短语,表示“被”eg. Granny takes care of the girl. (主动语态) The girl is taken care of by granny. (被动语态)被动语态的构成:be + 过去分词 + (by) 人称、数、时态变化eg. English is widely used around the world.句型:肯定句: 主语 + be + 过去分词 否定句: 主语 + be + not + 过去分词 一般疑问句:be + 主语 + 过去分词 + by 特殊疑问句:特殊疑问词 + be + 主语 + 过去分词 + by练:Cars are made by them.否定句:_____________________________疑问句:_____________________________The program has been made already.否定句:_____________________________疑问句:_____________________________被动语态的时态一般现在时的被动句型:主语 + am/is/are + 过去分词(+ by+…) eg. All the books are made by machines.The flowers are often watered by the old man.2) 一般过去时的被动句型: 主语 + was/were + 过去分词 (+ by+…)eg. The lab was built by the school in 1996.练: The students planted the trees yesterday. ______________________________________3) 一般将来时的被动句型: 主语 + will be + 过去分词(+ by+…)eg. A talk will be given by Mr Li tomorrow.练: Tom will invite me to the party next week.__________________________________________4. 主、被动的转换eg. I read English every day. (English is rea |