四級語法：各種時態下的被動語態
然四級考試中并沒有語法題，但語法卻是每個題型都需要的重要存在。因此，小編為大家帶來一系列語法的學習指南。
不知道你們有沒有這樣一種語法困擾，那就是——被動語態。雖然看似不難，但每次一碰到相關選項就各種犯錯。
為了防止大家錯誤重演，今天小編就帶大家看看被動語態的正確用法吧！
首先，被動語態由be＋過去分詞構成，be隨時態的變化而變化。
下面我們以give為例，各種時態的被動語態形式為：
一般現在時：am/is/are＋given
The first section of New College English is designed for speaking practice and is based on pictures and topics.
一般過去時：was/were＋given
These computers were made in our own country.
一般將來時：will/shall be＋given
Shall we be asked to attend the opening ceremony?
過去將來時：would be＋given
The news would be sent to the soldier's mother as soon as it arrived.
現在進行時：am/is/are being＋given
The machine is being repaired in the workshop. The fifth generation computers, with artificial intelligence, are being developed and perfected now.
過去進行時：was/were being＋given
The feast was being prepared when the birds arrived in the sky
現在完成時：has/have been＋given
Swift progress has also been made in culture and education.
過去完成時：had been＋given
The huge bridge had been damaged before the World WarⅡ.
將來完成時：will/shall have been＋given
The book will have been published by the end of next month.
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