现在完成时的被动语态

自己或对方时。 Enough has been said here on this question. 关于这个问题, 这里已经谈得不少了。(意思是: 大家不要再说了) (5) 用于文章标题、广告、新闻等, 常用省略助动词 be的被动语态。 Road Blocked. 道路已被堵塞。(新闻报道, 省略了助动词 has been 。) (6) 用于动作的执行者不是人时。 The house has been washed away by the storm. 那幢房子已被暴风雨冲走了。(7) 用于商务书信中起草人是以公司名义时。 Your letter has been received. 来信已收到。 4. 现在完成时被动语态的各种句型变换从现在完成时被动语态结构 has / have been done 可以看出 has / have 为助动词, 因此现在完成时被动语态的各种句型变换均应借助 has / have 来完成。构成否定句时直接在 has / have 后面加 not, 构成一般疑问句时将 has / have 提前。 Has this bridge been finished? 这座桥竣工了吗? His homework hasn ’ t been finished . 他的家庭作业还没有写完。 The black board has been cleaned, hasn't it? 黑板已擦过了, 是吗? 注意点 1. 副词的位置 often, usually, always, never, hardly, seldom 等频度副词置于 have/has 和 been 中间。如: [误] Such a man has been hardly believed. [正] Such a man has hardly been believed.