（新教材）《人教版》20版《高中全程学习方略》必修二课件：UNIT 2 DISCOVERING USEFUL STRUCTURES（英语） .ppt

1、Unit 2Wildlife ProtectionDiscovering Useful Structures现在进行时的被动语态【情境探究】观察上面对话,并完成句子:(1)The sports meeting _in our school now.现在我们学校正在举行运动会。(2)Another bridge _over the ChangjiangRiver.长江上正在修建另一座大桥。is being heldis being built【要义详析】一、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)+not+being

2、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 being made to prevent endangered animals from extinction.词汇复现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 b

3、eing 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)【巧学助记】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:原句意思不变;原句时态不变;原句主谓宾以外成分不变。【即学活用】语法填空(1)The grammar which _(learn)now is easy to master.(2)Some animals _(protect)well enough now.(3)The sports me

4、eting _(hold)in our school at present.is being learnedare being protectedis being held(4)(2018天津高考)My washing machine _(repair)this week,so I have to wash my clothes by hand.is beingrepaired二、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

5、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 Christmas 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 teache

6、r.汤姆总是受到老师的表扬。【即学活用】语法填空(1)(2017江苏高考)Now similar concerns _(raise)by the giants that deal in data,the oil of the digital age.世纪金榜导学号(2)Look!She _(criticize)by the teacher in the office.are beingraisedis being criticized(3)The milu deer _(study)at the research centre these days.(4)A man has been arre

7、sted and _(question)now.is/are being studiedis being questioned三、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 different ways,researchers are discovering new rules.但是既然信息正在以不同的方式被扩展与监控,研究者正在发现新的规则。2.像take care

8、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.词汇复现阻止非法捕猎的方法正在研讨中。3.“be(am/is/are)+under/in+n.”有时可相当于现在进行时的被动语态。*Many questions 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,常用在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。