八年级英语下册 Unit 7 International charities grammar 1教案 （新版）牛津版-（新版）牛津版初中八年级下册英语教案.doc

International charities教学目标1.To know the context of passive voice .2.Master and use the passive voice of the present tense and the simple past tense correctly.重点1.To know the context of passive voice .2.Master and correct use of the passive voice of the present tense and the simple past tense难点1.To know the context of passive voice .2.Master and correct use of the passive voice of the present tense and the simple past tense教法及教具Some pictures and a tape recorder.教学过程教 学 内 容 个案调整教师主导活动学生主体活动 Step1 Lead in 1. Teacher helps sts. revise the reading part to introduce passive voice . Ask :(1)Where do ORBIS doctors do operations ?(2)What is needed by ORBIS to help blind people ?2.Teacher writes the answers on the blackboard and circle out the two parts .Step2 Presentation1. Introduce passive voice : 当我们对被做的事情而不是做事情的人感兴趣时，我们用被动语态。2. Show some examples :(1)Many people speak English.(主动)English is spoken by many people .(被动)(2)They built a new bridge over the river .(主动)A new bridge was built over the river .(被动)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承受着，当主语和谓语动词构成被动关系时，通常需要用被动语态。汉语中常用“被”“给”“由”“受”等词来表示被动，而英语中则用“ be +动词的过去分词”来表示。3.Ask them to work out the rule:Answer :(1)ORBIS doctors do operations on the plane .(2)More money is needed by ORBIS to help blind people .教 学 内 容 个案调整教师主导活动学生主体活动 当主语是谓语的执行者时，用主动语态。当主语是谓语的承受着时，用被动语态 。如：We cleaned the classroom everyday .我们每天都打扫教室。The classroom is cleaned by us every day . 教室每天都被我们打扫。 被动语态的基本构成：主语be动词过去分词一般现在时IamsupportedYou/We/They areHe/She/It is一般过去时I wassupportedYou/We/They wereHe/She/It was 被动语态的基本用法：1. 动作的执行者是泛指或不言自明时。2. 在不知道动作的执行者是谁时。3. 需要强调动作的承受者时。4. 出于委婉或礼貌而避谈动作的执行者时。5. 在被动语态的句子中，如果我们需要指出动作的执行者，可以由by引出。3. Give more examples .Step3 Practice1.Present the pictures of reading part and try to find out the sentences with passive voice .(1) What is this charity called in English ?(2) What is the plane used as ?(3)How many patients were operated on during Dr Mas last visit?2.Ask sts. to revise the sentences in Comic strip & Welcome to the unit like this way .Step4Homework1. Do exercises on exercise book .2. Try to remember the rule .Learn passive voice by heart .Answer:(1)It is called ORBIS.(2)It is used as a hospital .It is also used as a training centre.(3)板书课堂作业作业见附页教学札记