（新教材）2020-2021学年高中英语必修2人教版课件：UNIT 2 DISCOVERING USEFUL STRUCTURES .ppt

1、Unit 2Wildlife ProtectionDiscovering Useful Structures现在进行时的被动语态【情境探究】观察上面的对话,并类比填空:(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 Changjiang River.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+bein

2、g 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.现在这个计划正在会议上被讨论。*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

3、问句)【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.is being learnedare being protected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 speech

4、es about Chinese traditional culture are being held these days.这段时间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 teacher.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 simila

5、r concerns _(raise)by the giants that deal in data,the oil of the digital age.(2)The milu deer _(study)at the research centre these days.are being raisedis/are being studied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 mo

6、nitored 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 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/in+n.”有时可相当于现在进行时的被动语态。*M

7、any 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。【即学活用】翻译句子。我们的孩子正在由他们的老师照顾。_.Our children are being looked after by their teachers【语法主题应用】使用本单元所学的语

8、法知识完成短文。Ladies and gentlemen,welcome to our city.Look!Many buildings 1._(正在建造)now in the center of the city.More than one subway is also 2._(construct).are being builtbeing constructedIts said that at least a new stadium and a new swimming pool 3._(design)by the City Construction Company.Well,as you can see,many trees and flowers 4._(正在栽种)on each side of the roads.5._(这座城市正在被设计)to be developed into a big city?The answer is yes.are being designedare being plantedIs the city being designed