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主语 谓语动词被动语态的过去分词 介词+ 宾语
被动语态的运用:
（1） 不知道谁是动作的执行者或没有必要知道谁是动作的执行者时。
The house is quite old. It was built in 1950.
这座房子太旧了，它是1950年建的。 When will the road be opened to traffic?
这条路什么时候通车?
（2） 需要强调动作的对象即宾语时。
?Calculator can't be used in the math exam.
计算器不能用于数学考试。
?He was awarded first prize in that contest.
他在比赛中获得了第一。
有时为了礼貌等原因不愿说出行为者,这时也常用被动语态。
The construction of the new lab must be completed by the end of next month.
新实验室必须在下个月底前完工。
You are requested to give a performance.
请你给我们表演一个节目。
（3）
Discuss with your partners
When was the car invented?
It was invented in 1885.
Who were they invented by?
They were invented by Julie Thompson.
What are they used for?
They are used for seeing in the dark.
Read the sentences and pay attention to the underlined parts.
The fridge was sold at a low price.
Rewrite the sentences using the passive voice.
1.They sold the fridge at a low price.
4a
My camera was stolen from my hotel room.