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1、Unit 9 When was it invented?第2课时Section A 3a4 一词组1. 被发明 2. 电灯泡 来源:3.微波炉 4.有用的发明 二完成3a,练习3b的对话来源:三语法:被动语态谓语动词的语态表示句子的主语和谓语动作之间的关系: 1)当句子的主语是谓语动作的执行者时,主、谓之间的关系称为主动语态; 2)当句子的主语是谓语动作的承受者时,主、谓之间的关系称为被动语态。 例如:I teach English.(主动语态)我教英语。 Our English is taught by him.(被动语态)我们的英语是由他教的。在被动语态的句子中,谓语部分的结构是be +
2、p.p.(过去分词)。被动语态的句子有时态的变化,这个变化反映在 动词上。也就是说,把一个句子做成被动语态的句子,只需要写出be动词的所需时态,再加上所给动词的过去分词就行了。结构:一般现在时的被动语态:am / is / + p.p.(过去分词一般过去时的被动语态: / were p.p. + p.p.(过去分词一般将来时的被动语态:shall / will + be + 过去将来时的被动语态:would / should + be + p.p.(过去分词现在进行时的被动语态: am / is / are + being + p.p.(过去分词过去进行时的被动语态:was / were +
3、being+ 现在完成时的被动语态: have / has + been + 过去完成时的被动语态: had + been + 来源:被动语态练习:用所给的词填空1.English (speak) in many countries all over the world .(一般现在时)来源:数理化网2. Some TV sets for sale in the store (steal)last night. (一般过去时)3. He wont (allow)by his father, to marry Mary. (一般将来时)4. They (send)to the army when they finished the training. (过去将来时)5. The project (carry)out.(现在进行时) 这个计划正在执行中。来源:6. The car (mend) then.(过去进行时)7. This novel (translate)into several languages. (现在完成时)8.They said that the program (cut)(过去完成时)1