专升本英语语法你熟悉吗？被动语态你会用吗？

专升本英语语法很重要，今天跟着小编一起来看看被动语态和主动语态的考试运用吧！

一、主动语态改成被动语态方法 把主动语态改为被动语态非常简单，可以遵循以下几个步骤： 1. 将主动语态的宾语作被动语态的主语； 2. 谓语动词变为“be+及物动词的过去分词”，并通过be的变化来表达出不同的时态； 3. 主动语态的主语变为介词by的宾语，组成介词短语放在被动结构中的谓语动词之后。（有时by的短语可以省略）； 例：1. Bruce writes a letter every week. →A letter is written by Bruce every week. 二、被动语态的用法 1. 一般现在时的被动语态构成：is / am / are + 及物动词的过去分词 Our classroom is cleaned everyday. 2. 一般过去时的被动语态构成：was / were + 及物动词的过去分词 A new shop was built last year. 3. 现在完成时的被动语态构成：has / have + been + 及物动词的过去分词 This book has been translated into many languages. 4. 一般将来时的被动语态构成：will+ be + 及物动词的过去分词 Many more trees will be planted next year. 5. 含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词 Young trees must be watered often. 6. 现在进行时的被动语态构成：am / is / are + being + 及物动词的过去分词

Uncle Wang is mending my bike now.→ My bike is being repaired by Tom now.

7. 不定式的被动语态：to + be + 及物动词的过去分词 There are two books to be read. → There are twenty more trees to be planted.