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Unit5:Whataretheshirtsmadeof?

2023-05-22 21:34阅读:
第五单元的语法重点是:一般现在式的被动语态;现在完成时;名词所有格。
一般现在式的被动语态 英语中有两种语态:主动语态和被动语态。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者。
一般现在时的被动语态表示现阶段经常性、习惯性的被动动作,由“主语 + am/is/are + 及物动词的过去分词(+by+ 动作执行者)”构成。例如:
The yard is cleaned (by someone) every morning. 院子每天早上都有人打扫。
当我们不知道谁是动作的执行者,或不用指出动作的执行者,而需要强调动作的承受者时,就要用被动语态。例如:
Mobile phones are mainly used to keep in touch with other people. 手机主要被用来和其他人保持联系。
一般现在时的被动语态的一般疑问句是将 be 提至句首;否定句是在 be 后加not。例如:
Is Chinese spoken by many people? 许多人说汉语吗?
The little girl is not looked after by her mother. 这个小女孩不是由她的妈妈照顾。


主动句变被动句将主动句的宾语变为被动句的主语,将主动句的谓语变为被动结构(be+ 过去 分词),将主动句的主语放在介词 by 之后作宾语,若为主格应改为宾格。例如:
He broke the cup. 他打破了杯子。
→ The cup was broken by him. 杯子被他打破了。


直击中考 1.【广西南宁】32.Han Han's books are popular.They ______ by many teenagers.

A.is read
B.was read
C.are read
D.were read

2.【湖北宜昌】34.-At present,one of the best ways to study is working in groups.
-More chances ______ to students to learn from each other.
A.offer
B.are offered
C.have offered
D.are offering

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