2020版新教材高中英语 Unit 2 Wildlife Protection Discovering Useful Structures课件 新人教版必修2.ppt

Unit2WildlifeProtectionDiscoveringUsefulStructures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)Thesportsmeeting___________inourschoolnow.现在我们学校正在举行运动会。(2)Anotherbridge____________overtheChangjiangRiver.长江上正在修建另一座大桥。【要义详析】一、现在进行时的被动语态的基本结构*Theplanisbeingdiscussedatthemeetingnow.现在这个计划正在讨论过程中。Anewlawisbeingmadetopreventendangeredanimalsfromextinction.词汇复现为了阻止濒危动物的灭绝新的法律正在制定中。*Workersarecuttingdownsometreesinthepark.→Sometreesarebeingcutdownbyworkersinthepark.(被动语态)→Wherearesometreesbeingcutdownbyworkers?(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)Thegrammarwhich______________(learn)nowiseasytomaster.(2)Someanimals_________________(protect)wellenoughnow.(3)Thesportsmeeting___________(hold)inourschoolatpresent.(4)(2018·天津高考)Mywashingmachine_______________(repair)thisweek,soIhavetowashmyclothesbyhand.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!Thebabyisbeingtakencareofbyheraunt.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。*ManyspeechesaboutChinesetraditionalculturearebeingheldthesedays.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。*AChristmaspartyisbeingheldtonight.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)。*Tomisalwaysbeingpraisedbytheteacher.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)Nowsimilarconcerns______________(raise)bythegiantsthatdealindata,theoilofthedigitalage.世纪金榜导学号(2)Look!She_______________(criticize)bytheteacherintheoffice.(3)Themiludeer_________________(study)attheresearchcentrethesedays.(4)Amanhasbeenarrestedand_________________(question)now.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。*Butnowthatinformationisbeingspreadandmonitoredindifferentways,researchersarediscoveringnewrules.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takecareof,lookafter,talkabout,thinkof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。*Thewaystostopillegallyhuntingarebeingtalkedabout.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。*Manyquestionsareunderdiscussion.=Manyquestionsarebe