2020年中考英语知识点之被动语态的基本时态变化

　　中考网整理了关于2020年中考英语知识点之被动语态的基本时态变化，希望对同学们有所帮助，仅供参考。

　　被动语态的基本时态变化

　　被动语态通常为十种时态的被动形式, 被动语态由be+过去分词构成，be随时态的变化而变化。以do为例，各种时态的被动语态形式为：

　　1) am/is/are +done (过去分词) 一般现在时

　　例Visitors are requested not totouch the exhibits.

　　2) has /have been done 现在完成时

　　例All the preparations for thetask have been completed, and we're ready to start.

　　3) am/is /are being done 现在进行时

　　例A new cinema is being builthere.

　　4) was/were done 一般过去时

　　例I was given ten minutes todecide whether I should reject the offer.

　　5) had been done 过去完成时

　　例 By the end of last year,another new gymnasium had been completed in Beijing.

　　6) was/were being done 过去进行时

　　例A meeting was being held when Iwas there.

　　7) shall/will be done 一般将来时

　　例Hundreds of jobs will be lostif the factory closes.

　　8) should/would be done 过去将来时

　　例The news would be sent to thesoldier's mother as soon as it arrived.

　　9) shall/will have been done 将来完成时(少用)

　　例The project will have beencompleted before July.

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