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人教2003课标版《Learning about Language》最新PPT课件优质课下载
Active Voice and Passive Voice
主动语态
被动语态
Sb. do sth.
Sth be done (by sb.)
Robots can offer people food.
Food can be offered to people by robots.
Robots can do cooking.
Cooking can be done by robots.
Robots can water the flowers.
Flowers can be watered by robots.
Passive Voice of Infinitive
动词不定式的被动语态
动词不定式的结构：
主动结构：to do
被动结构：to be done
Passive Voice of Infinitive
回顾课文中动词不定式的被动语态：
It was going to be tested by Larry’s wife.
→Larry’s wife was going to test it out.
The robot wouldn’t harm her or allow her to be harmed.
→ The robot wouldn’t harm her or allow anyone else to harm her.
Passive Voice of Infinitive
It was ridiculous to be offered sympathy by a robot.
→ It was ridiculous for a robot to offer her sympathy.