1、Unit 2 Wildlife ProtectionDiscovering Useful Structures一、语法指南现在进行时表将来时的被动语态1.现在进行时的被动语态的基本结构肯定结构be (am/is/are) being done否定结构be (am/is/are) notbeing done一般疑问结构be (am/is/are) 主语being done特殊疑问结构特殊疑问词be (am/is/are) 主语being done*The plan is being discussed at the meeting now.现在这个计划正在讨论过程中。A new law is b
2、eing made to prevent endangered animals from extinction.为了阻止濒危动物的灭绝，新的法律正在制定中。*Workers are cutting down some trees in the park.Some trees are being cut down by workers in the park. (被动语态)Where are some trees being cut down by workers？(特殊疑问句)【注意】主动语态变被动语态的原则“三变”原则：原主变为by短语，原宾变为现主语；谓语主动变被动。“三不变”原则：原句意
3、思不变；原句时态不变；原句主谓宾以外成分不变。2.现在进行时的被动语态的基本用法（1）表示此刻正在进行的被动动作，常与now，look等词连用。*Look! The baby is being taken care of by her aunt.瞧！那个婴儿正由她的姑姑照料着。（2）表示现阶段正在进行的被动动作，但此动作不一定在此时此刻发生。*Many speeches about Chinese traditional culture are being held these days.这一阵子许多有关中国传统文化的讲座正在举行。（3）表示按计划主语将要承受的某个动作。*A Christma
4、s party is being held tonight.今晚将要举行一场圣诞晚会。（4）表示经常的被动行为，常和always, often, constantly等词连用(表示某种感情色彩)。*Tom is always being praised by the teacher.汤姆总是受到老师的表扬。3.使用现在进行时的被动语态应注意的问题（1）在现在进行时的被动语态中be (am/is/are)为第一助动词，being为第二助动词，缺一不可，且位置不可互换。*But now that information is being spread and monitored in differ
5、ent ways, researchers are discovering new rules.但是既然信息正在以不同的方式被传播与监控，研究者正在发现新的规则。（2）像take care of, look after, talk about, think of等动词与介词构成的短语用于现在进行时的被动语态时，其中的介词不可省略。*The ways to stop illegally hunting are being talked about.阻止非法捕猎的方法正在研讨中。（3）“be (am/is/are) under/inn.”有时相当于现在进行时的被动语态。*Many question
6、s are under discussion.Many questions are being discussed.许多问题正在被讨论。（4）有时表“状态，心理活动，情感”等的动词，常用于一般现在时的被动语态表示“正在进行”。*The runaway of the traffic accident is wanted by the police.警方正在通缉交通事故的逃逸者。二、同步练习（一）1.Tom _(treat) at the hospital now, so he cant attend the meeting at present.2.Please wait a moment. T
7、he dishes _ (cook) in the kitchen.3.Your experiment report _(type) now and it will be finished soon.4.I have to go to work by taxi because my car _(repair) at the garage.5.A new building _ (build) in our school, which well use next term.（二）6.在他看来，他已经适应当地的生活。_ _ _, he has adapted to the local life.7.
8、和大自然和睦相处难道不对吗?_ _ _ _ live in harmony with nature?8.谈到濒临灭绝的物种时，教授几乎无法控制自己的情绪。_ _ _ _ the endangered species, the professor could hardly control his _.9.没有各种各样的生物，我们的生活将会变得完全不一样。_ _ _ _ living creatures, our life _ _ completely different.10.这些智能机器人已经引起世界各国的注意。The intelligent robots _ _ _ _ of all the
9、 countries over the world.答案以及解析二、（一）1.答案：is being treated解析：考查现在进行时的被动语态。句意：汤姆现在正在医院接受治疗，因此他目前不能参加会议。根据now可知，本空应用现在进行时表示说话时正在发生的动作；且句子主语Tom和动词treat之间为被动关系，故本句应用现在进行时的被动语态。2.答案：are being cooked3.答案：is being typed解析：考查现在进行时的被动语态。句意：你的实验报告现在正在打印中，很快就会完成。根据now及空后内容可知，本空应用现在进行时表示说话时正在发生的动作；且句子主语your experiment report和动词type之间为被动关系，故本句应用现在进行时的被动语态。4.答案：is being repaired5.答案：is being built（二）6.答案：In his opinion7.答案：Isnt it right to8.答案：When it came to, emotions9.答案：Without all kinds of, would become10.答案：have attracted the attention4
