四、被动语态:过去was/were donewas/were being done现在is/am/are doneis/am/are being done将来shall/will be doneshall/will be being done过去将来 should/would be doneshould/would be being done过去had been donehad been being done现在have/has been donehave/has been being done将来shall/will have been doneshall/will have been being done过去将来 should/would have been done should/would have been being done1、 被动语态的基本用法:(1) 强调动作的承受者时应用被动语态:The man was hit by a speeding car
那个男人被一辆快速行驶的小车撞到了
(2) 当动作的执行者不重要或不明显时用被动语态:The matter will have to be dealt with immediately
这件事需要马上被处理
(3)用it作形式主语表客观说明时用被动语态:It is said that he was killed in that accident
据说他死于那场车祸
It is thought by experts that the project will fail
专家们认为该方案将失败
It is believed that the political situation is critical
大家相信政治形势很危急
(4)有些习惯用法常用以被动语态形式出现:She was seated by the