Unit3 The Internet Discovering useful structures被动语态课件 2022-2023学年高中英语人教版（2019）必修第二册

You were loved. We all wanna make a place in this world. Passive Voice 被动语态 通过观察例句,能进一步了解掌握主动语态与被动语态的区别 通过观察例句和找规律总结,能够熟练掌握被动语态的基本形式 通过观察例句,进一步学习并掌握主动语态与被动语态的转换 通过观察例句、找规律,了解语态与时态的区别,并熟练掌握被动语态常用的四种时态 Learning aims Tom catches Jerry. Jerry is caught by Tom. 一个内容 两种说法 从动作发出者角度 从动作承受者角度 主动说法 被动说法 主动语态 被动语态 选择哪一种呢? 关键看强调的对象和角度 被动语态的几个概念 Tom catches Jerry. Jerry is caught by Tom. 动作的发出者 动作 动作的承受者 被动语态的句子中由_引出动作的发出者。 by by有“通过,被”的意思 被动语态的基本形式 观察下列被动语态的句子,圈出表示被动含义的谓语部分。 The trees are planted by the volunteers. Disneyland is enjoyed by millions of people from all over the world. The waste water is poured into the river by the chemical factory. 被动语态的基本形式: be +p.p.(动词的过去分词) 主动语态如何转换成被动语态? 主动 被动的转换过程 Tom catches Jerry at home. 主语 谓语 宾语 Jerry is caught by Tom at home. 主语 谓语 宾语 口诀: 一换(主宾) 二改(动词语态) 三加(by) 四补(其余) 语态和时态有什么不一样? Have a try. 把下列主动语态的句子转换成被动语态。 They play football on Sunday. Lucy does the homework in the morning. They often play computers in class. We make the machines in Beijing. 口诀: 一换(主宾) 二改(动词语态) 三加(by) 四补(其余) Football is played by them on Sunday. The homework is done by Lucy in the morning. Computers are played by them in class. The machines are made by us in Beijing. 语态与时态有什么区别呢? 语态:主动语态 语态与时态 关注 “做” 被动语态 “被做” do be+done 2. 时态:根据动作发生的时间不同,而动词的形态不同,称之为时态 关注 “时间” My sister waters the tree everyday. The tree is watered by my sister everyday. Tom caught Jerry last week. Jerry was caught by Tom last week. 主动 被动 主动 被动 一般现在时 每天浇水 每天被浇水 一般过去时 上周抓住 上周被抓住 被动语态的时态 5. Knives are used by people for cutting things. 6. These machines were made last year. 7. More trees will be planted next year. 8. More than 2000 English words have been learned by now. 一般现在时:am/is/are +及物动词的过去分词 一般过去时:was/were +及物动词的过去分词 一般将来时:will be+及物动词的过去分词 现在完成时:have/has+been+及物动词的过去分词 被动 小结 被动语态由助动词be加及物动词的过去分词构成。助动词be,有人称、数和时态的变化,其变化规则与连系动词be完全一样。 练习 A new international airport _ in the city next year. completes B. is completed C. will complete D. will be completed Today, many winter Olympic sports _ even