被动语态是英语语法中常用的语态之一,它有助于表达动作的受事者。一般而言,被动语态的构成是由be动词和过去分词组成的。但是,在某些情况下,被动语态的构成会有所不同。
以下是被动语态6种特殊情况:
- 当主语是不定代词时
在被动语态中,主语常常是动作的受事者。不过,当主语是不定代词时,我们需要使用“one”或“they”来替代主语。例如:
- Someone has taken my umbrella.(主动语态)
- My umbrella has been taken.(被动语态)
- 当主语是复数名词时
当主语是复数名词时,我们需要在be动词后面加上“are”。例如:
- The students are studying hard.(主动语态)
- Hard work is being done by the students.(被动语态)
- 当主语是以“every”或“no”开头的词时
当主语是以“every”或“no”开头的词时,我们需要在be动词后面加上“is”。例如:
- Every student is required to attend the meeting.(主动语态)
- The meeting is required to be attended by every student.(被动语态)
- 当主语是以“some”或“any”开头的词时
当主语是以“some”或“any”开头的词时,我们需要在be动词后面加上“are”。例如:
- Some people have already arrived.(主动语态)
- People are already present.(被动语态)
- 当主语是以“who”或“whom”开头的句子时
当主语是以“who”或“whom”开头的句子时,我们需要把be动词放在句子最前面。例如:
- Who wrote this letter?(主动语态)
- By whom was this letter written?(被动语态)
- 当主语是由介词短语组成时
当主语是由介词短语组成时,我们需要把be动词放在介词之后。例如:
- The book was on the table.(主动语态)
- On the table was the book.(被动语态)
以上就是被动语态6种特殊情况,希望对你的英语学习有所帮助。