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2017英语四级被动语态的构成讲解
被动语态由be+过去分词构成，be随时态的变化而变化。以give为例，各种时态的被动语态形式为：一般现在时：am/is/are+given以下是小编为大家搜索整理了2017英语四级被动语态的构成讲解，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!
【例句】
The first section of New College English is designed for speaking practice and is based on pictures and topics.
一般过去时：was/were+given
【例句】
These computers were made in our own country.
一般将来时：will/shall be+given
【例句】
Shall we be asked to attend the opening ceremony?
Sir Denis, who is 78, has made it known that much of his collection ____to the nation. (CET-4 1996, 6)
A) has left B) is to leave
C) leaves D) is to be left
本句意思为：78岁的Denis先生声明他将把他的大多数收藏品留给国家。所以leave应用一般将来时的被动形式。一般将来时可以用来be to do sth表达，因此答案为D.
过去将来时：would be+given
【例句】
The news would be sent to the soldier's mother as soon as it arrived.
现在进行时：am/is/are being+given
【例句】
The machine is being repaired in the workshop. The fifth generation computers, withartificial intelligence, are ____and perfected now. ( CET-4 1996,1)
A) developed B) have developed C) are being developed D) will have been developed
本句测试点是动词的时态和语态。develop和perfect是两个并列的谓语动词，perfect用的是被动形式，develop也应该用被动形式，而且句子的时间状语为now，故develop应用现在进行时的被动语态，答案为C。
过去进行时：was/were being+given
【例句】
The feast was being prepared when the birds arrived in the sky
现在完成时：has/have been+given
【例句】
Swift progress has also been made in culture and education.
过去完成时：had been+given
【例句】
The huge bridge had been damaged before the World WarⅡ.
将来完成时：will/shall have been+given
【例句】
The book will have been published by the end of next month.
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