雖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。
不知道你們有沒有這樣一種語法困擾，那就是——被動語態(tài)。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，本文就帶大家看看被動語態(tài)的正確用法吧!
首先，被動語態(tài)由be+過去分詞構成，be隨時態(tài)的變化而變化。
下面我們以give為例，各種時態(tài)的被動語態(tài)形式為：
一般現(xiàn)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(xiàn)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(xiàn)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.