Unit 4 Wildlife protectionPart Ⅱ Grammar语法指南现在进行时的被动语态现在进行时的被动语态由“is/am/are＋being＋及物动词的过去分词”构成，表示“某事/某人正在被……”之意。(1)将现在进行时的主动语态变为被动语态的关键是把 be doing 变为 be being done。→The students are cleaning the classroom now.学生们正在打扫教室。→The classroom is being cleaned by the students now.教室正在被学生们打扫。(2)现在进行时的被动语态注意要点① 注意不可遗漏 beingLook！The children are being taken care of by their aunt.瞧！孩子们正由他们的姑妈照看着。② 可与部分情态动词连用，表示对正在发生的事情的推测The problem may be being discussed.这个问题可能正在讨论中。Listen！He must be being criticized by the teacher.听！他一定是在挨老师的批评。③ 注意不可忽视“现阶段”现在进行时的被动语态也可表示现阶段正在进行的被动动作。Many interesting experiments are being carried out these days.如今许多有趣的实验正在进行着。(说话时，并不一定正在进行)④ 注意无进行时被动语态的动词一些表示状态、心理活动、拥有、存在等的动词，一般不用现在进行时的被动语态，而常用一般现在时的被动语态。Xiao Wang，come here.You are wanted on the phone.小王，过来，有你的电话。Football is becoming more and more popular.In other words，it is loved by more and more people.足球现在越来越流行了，换句话说，它被越来越多的人喜爱。⑤“be＋under/in 等介词＋名词”结构可表示现在进行时的被动含义The problem is under discussion(＝is being discussed)at the meeting.这个问题正在会上讨论。The telephone is in use(＝is being used)now.这部电话正在使用中。⑥ 表示一种经常性的行为，常和 always，constantly 等副词连用，表示赞扬或厌恶的感情色彩He is always being praised by the leader.他总是受到领导的表扬。I feel very puzzled that the goods in our shop are constantly being stolen.我们商店里的商品老是被偷，这令我感到很困惑。⑦ 现在进行时的被动语态不与表示时间或次数的状语连用这块手表修了两次了。The watch is being repaired twice.(误)The watch has been repaired twice.(正) 提示：用最精炼的语言把你当堂掌握的核心知识的精华部分和基本技能的要领部 分写下来并进行识记。1
