(
课件网) 现在完成时的被动语态 Grammar 图解 语法脉络 感知 语法规律 精讲 语法知识 跟踪 落实检查 7. 我猜有人之前问过你关于你书名的这个问题。 8. 我猜你之前被问过关于你书名的这个问题。 9. 人们已经使用像3D打印机这样的新发明来制造替代心脏和骨骼部件。 10. 像3D打印机这样的新发明已经被用来制造替代心脏和骨骼部件。 1. 我们城市已经建了一座新公园。 2. 我们城市还没有建新公园。 3. 我们城市建了新公园吗？ 4. 新公园建在哪里？ 预习反馈 一、结构 肯定式 主语＋have/ has been done... 否定式 主语＋have/ has not been done... 一般疑问式 Have/ Has＋主语＋been done...？ 特殊疑问式 疑问词＋have/ has＋主语＋been done...？ 二、用法 1.现在完成时的被动语态表示被动的动作在说话时已经完成，通常与already已经yet 已经just刚刚recently/lately最近since then从那时起 ever since 自从so far迄今为止for a long time 很长一段时间by now到现在为止in recent years 在最近几年里during the past years在过去的几年里 等副词连用。 The machine has already been repaired. 机器已经修好了。 2.表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“How long...？”句型中。 Financial problems of the company have been discussed for nearly two hours. 公司的财务问题已被讨论了近两个小时了。 How long has this film been shown 这部电影已放映多长时间了？ 1. The project _____ (complete) yet due to technical problems. （由于技术问题，这个项目尚未完成。） 2. This old building _____ (preserve) ever since it was declared a historical site. （自从被列为历史遗迹以来，这座老建筑一直受到保护。） 3. Many new policies _____ (implement) in recent years to protect the environment. （近年来实施了许多新政策来保护环境。） 4. All the documents _____ (check) by now, so we can submit the report. （所有文件到现在都已检查完毕，我们可以提交报告了。） has not been completed have been checked have been implemented has been preserved 5. This ancient temple _____ (protect) as a cultural heritage site since 1995. （这座古庙自1995年以来一直被作为文化遗产保护。） has been protected 三、现在完成时的被动语态与一般过去时的被动语态的区别 一般过去时的被动语态表示一个被动的动作发生在过去某时；而现在完成时的被动语态侧重于表示一个被动的动作在说话时已经完成。 The big fire was put out two hours ago. 大火在两个小时前就被扑灭了。 The big fire has been put out. 大火已经被扑灭了。 有过去的时间用过去式 相对于现在用现在完成时 即学即练 1. The book _____ (publish) last year, but it _____ (not sell) well yet. 2. The windows _____ (break) during the storm yesterday, and they _____ (not repair) so far. 3. Many ancient buildings _____ (destroy) in the war, but some _____ (restore) in recent years. 4. The report _____ (finish) an hour ago, but it _____ (not send) to the manager. was published has not been sold were broken have not been repaired were destroyed have been restored was finished has not been sent HOMEWORK 1.翻译课本38页第2题（基础必做题） 2.改写课本38页第2题的句子（提升选做题） 3.英语周报（提升选做题） Unit 3 3D-printed hamburgers have be ... ...
