想要學好英語四級怎麼能不瞭解被動語態呢?下面就讓小編爲大家詳解一下吧。
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爲例，各種時態的被動語態形式爲：
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.
延伸閱讀：
英語四級語法講義：句子成分(members of the sentence)
英語的句子由主語部分與謂語部分組成。具體地講，主要有下列六種句子成分：
1)主語(subject)它是句子所要說明的人或事物，是一句的主體。如I study English(我學習英語)中的I。
2)謂語動詞(predicate verb)它是說明主語的動作或狀態的，如I study English中的study。
3)表語(predicative)它是放在連繫動詞之後表示主語的身分或特徵的，如I am a student(我是一個學生)中的student;Our classroom is clean(我們的教室很乾淨)中的clean。
4)賓語(object)它是表示及物動詞動作的.對象的，如I study English中的English。介詞後面的名詞或代詞，叫做介詞的賓語，如They don't work on Sunday(他們星期天不工作)中的Sunday，就是介詞on的賓語。
5)定語(attribute)它是限定或修飾名詞或代詞用的，如He likes to drink co1d milk(他喜歡喝冷牛奶)中的co1d。
6)狀語(adverbial)它是修飾動詞、形容詞、副詞用的，如He works hard(他努力工作)中的hard。
[注]虛詞在句子中一律不能作爲句子成分。