高中英语第二册Unit4Grammar课件.ppt

Grammar,The passive voice using the present continuous tense,Grammar (5m),现在进行时被动语态表示说话时或现阶段某个被动的动作正在进行,谓语动词的形式为“is / are / am + being+过去分词”。如果去掉being,就成为一般现在时被动语态或系表结构。试比较下列句子:,Look! The children are being taken care of by their aunt. 瞧!孩子们现在正由姑母照看着。(指现在的情况) Children are taken good care of at school. 孩子们在学校被照看得很好。(指通常的情况),The report is being written by one of the best students. 报告正在由一个最好的学生写着。 The report is well written. 报告写得很好。(系表结构),现在进行时被动语态的用法： 1、表示现阶段正在进行的动作 现在进行时被动语态也可表示目前这一阶段主语正在承受谓语动词的动作。例:,Rainforests are being cut and burned at such a speed that they will disappear from the earth in the near future. 热带雨林被砍、烧得这么快,他们将在不久的将来从地球上消失。 Many interesting experiments are being carried out these days. 最近正在进行许多有趣的实验。,2、表示计划或安排 现在进行时被动语态还可表示按计划、安排主语将要承受谓语动词的动作(仅限于少数及物动词)。例: A folk song is being sung next. 下面将唱一首民歌。 A party is being held tonight. 今晚将要举行一场晚会。 It is said that a plane is being flown by him to America at eight next Sunday morning. 据说下周日早上八点他将开飞机去美国。,3、没有进行时的被动语态 一些表示状态、心理活动、拥有、存在等的动词(和主动语态一样)一般不用进行时被动语态,常用一般现在时被动语态表示此时此刻或目前主语承受谓语动词的动作。如: 小王,过来,有你的电话。,【误】 Xiao Wang, come here. You are being wanted on the phone.,【正】 Xiao Wang, come here. You are wanted on the phone.,足球现在越来越流行了, 换句话说,它被越来越多的人喜爱。,【误】Football is becoming more and more popular. In other words, it is being loved by more and more people. 【正】Football is becoming more and more popular. In other words, it is loved by more and more people.,4、其他形式表示被动结构 “be +under/ in等介词+名词“结构可代替进行时被动语态。例: The city is under attack ( is being attacked ) at the moment. 目前这个城市正受到进攻。 The bridge is under repair / construction (=is being repaired/ constructed). 桥梁正在修理中/建筑中。 The problem is under discussion (=is being discussed) at the meeting. 问题正在会上讨论。 The telephone is in use (=is being used) now. 电话正在使用中,Function-practice (3m),Answer the following questions according to the example.,EXAMPLE:- Who is studying the rhino? -The rhino is being studied by_,1.Who is protecting the African elephant? The African elephant is _ 2.Who is hunting the Tibetan antelope? The Tibetan antelope is _,Function-practice (3m),Answer the following questions according to the example.,3.Who is taking photos of the panda? The panda is _,4.Who is killing the whales? The whales _,5.Who is attacking the mice? The mice _,1A new cinema _ here. They hope to finish it next month. A. will be built B. is built C. has been built D. is being built,高考链接,解析：由they hope to finish it next month，可以知道“建造”工作正在进行，而且主语cinema与动词build之间是被动关系，因此使用现在进行时的被动语态。,2Rainforests _ and burned at such a speed that they will disappear from the earth in the near future. A. cut B. are cut C. are being cut D. had been cut,高考链接,解析：从句子的语境they will disappear from the earth in the near