(1)不知道或没有必要说明动作的执行者是谁,不用by+动作执行者短语。
Football is played widely all over the world。
全世界都广泛地踢足球。
(2)强调动作的承受者。
The bank was robbed yesterday afternoon。
昨天下午这家银行遭到抢劫。
(3)作客观说明时,常采用一种被动语态句型。
It is reported that about twenty children have died of flu in the USA。
据报道美国大约二十名儿童死于流感。
3、主动语态的句子变为被动语态的步骤
(1)把原句中的宾语变为主语
(2)动词改为被动形式,即be+过去分词
(3)原来的主语,如果需要的话,放在by后面;如果没必要,可省略。
各种时态的被动语态 | 被动语态的构成 | ||
be | 过去分词 | ||
1 | 一般现在时的被动语态 | am / is / are | 过去分词 |
2 | 一般过去时的被动语态 | was / were | 过去分词 |
3 | 现在进行时的被动语态 | am / is / are +being | 过去分词 |
4 | 过去进行时的被动语态 | was / were +being | 过去分词 |
5 | 现在完成时的被动语态 | have / has been | 过去分词 |
6 | 过去完成时的被动语态 | had been | 过去分词 |
7 | 将来完成时的被动语态 | will / shall have been | 过去分词 |
8 | 一般将来时的被动语态 | will / shall be | 过去分词 |
9 | 过去将来时的被动语态 | would / should be | 过去分词 |
以上就是小编整理的被动语态用法,感谢阅读。