中考网整理了2020年中考英语要点之被动语态的构成形式，期望对同学们有所帮助，仅供参考。被动语态的构成形式1. 被动语态的基本时态变化被动语态一般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) 一般目前时例Visitors are requested not to touch the exhibits.2) has /have been done 目前完成时例All the preparations for the task have been completed, and were ready to start.3) am/is /are being done 目前进行时例A new cinema is being built here.4) was/were done 一般过去时例I was given ten minutes to decide 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 I was there.
7) shall/will be done 一般以后时例Hundreds of jobs will be lost if the factory closes.8) should/would be done 过去以后时例The news would be sent to the soldiers mother as soon as it arrived.9) shall/will have been done 以后完成时(少用)例The project will have been completed before July.2. 被动语态的特殊结构形式1)带情态动词的被动结构。其形式为：情态动词 be 过去分词。例The baby should be taken good care of by the baby-sitter.2) 有的动词可以有两个宾语，在用于被动结构时，可以把主动结构中的一个宾语变为主语，另一宾语仍然保留在谓语后面。一般变为主语的是间接宾语。例His mother gave him a present for his birthday. 可改为 He was given a present by his mother for his birthday.3) 当动词 宾语 宾语补足语结构变为被动语态时，将宾语变为被动结构中的主语，其余不动。例Someone caught the boy smoking a cigarette. 可改为The boy was caught smoking a cigarette.4)在使役动词have, make, get与感官动词see, watch, notice, hear, feel, observe等后面不定式作宾语补语时，在主动结构中不定式to要省略，但变为被动结构时，要加to。例Someone saw a stranger walk into the building. 可改为A stranger was seen to walk into the building.5) 有的等于及物动词的动词词组，如动词 介词，动词 副词等，也可以用于被动结构，但要把它们看作一个整体，不可以分开。其中的介词或副词也不可以省略。例The meeting is to be put off till Friday.3. 非谓语动词的被动语态v. ing 形式及不定式 to do 也有被动语态(一般时态和完成时态) 。例I dont like being laughed at in the public.
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