高中英语Unit4WildlifeprotectionSection2LearningaboutLanguage课件新人教版必修2.ppt

Unit4,Wildlifeprotection,SectionLearningaboutLanguage,语法精讲,现在进行时的被动语态,自主预习,用动词的适当形式填写下面教材中的句子并体会它们的共同特征。1We_(正在被杀死)forthewoolbeneathourstomachs.2Ourfur_(正在被使用)tomakesweatersforpeoplelikeyou.3Iwonderwhat_(正在被做)tohelpyou.4Daisyturnedaroundandfoundthatshe_(正在被注视)byanelephant.5Sogoodthings_(正在被做)heretosavelocalwildlife.,arebeingkilled,isbeingused,isbeingdone,wasbeingwatched,arebeingdone,合作探究,主动语态变被动语态的原则“三变”：原句主语变为by短语，宾语变为主语，谓语由主动变为被动；“三不变”：原句意思不变，原句时态不变，原句主谓宾以外成分不变。Theyarebuildingnineparks.Nineparksarebeingbuilt.(被动句)Howmanyparksarebeingbuilt？(特殊疑问句),用所给单词的正确形式填空。Theyarelivingwiththeirparentsforthemomentbecausetheirownhouse_(rebuild)Haveyoumovedintoyournewhouse?Notyet.Therooms_(paint)完成句子。Thebaby_.这个婴儿现在没得到很好的照顾。Howmanyhouses_inthevillage?村里正在建造多少房屋？,isbeingrebuilt,arebeingpainted,isntbeingtakengoodcareof,arebeingbuilt,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。Sheisbeingexaminedbythedoctornow.现在她正在被医生检查。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。Thelifeofthepandaisbeingstudiedatpresent.现在正在研究大熊猫的生活情况。,3表示按计划、安排主语将要承受某个动作。Somerockmusicisbeingplayedbythemnext.下面将由他们演奏一些摇滚音乐。4表示经常的被动行为，常和always，often，constantly等词连用。(表达某种感情色彩)Tomisalwaysbeingpraisedbytheteacher.汤姆总是受到老师的表扬。,单句语法填空。Haveyouhandedinyourschoolworkyet?Yes，Ihave.Iguessit_(grade)now.Wouldyoupleasekeepsilent?Theweatherreport_(broadcast)andIwanttolisten.Preparations_(make)forthemeetingandeverythingwillbereadyinhalfanhour.Imsuretheexperimentwhich_(do)atthemomentwillbeagreatsuccess.,isbeinggraded,isbeingbroadcast,arebeingmade,isbeingdone,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。(2016全国卷)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。Somethingisbeingtalkedaboutamongthosepeople.在那些人中正谈论着某件事情。,3“be(am/is/are)under/inn.”有时可相当于现在进行时的被动语态。Theschoolisstillunderconstructionnow.Theschoolisbeingbuiltnow.学校现在正在建设中。Thenewlawisinuse.Thenewlawisbeingused.这项新法律正被使用。,4有些表“状态，心理活动，情感”等的动词，常用一般现在时的被动语态表示“正在进行”。Youarewantedonthephone.有人打电话找你。Cellphonesarebecomingmoreandmorepopular.Inotherwords，theyarelovedbymoreandmorepeople.手机越来越受欢迎，换句话说，它们越来越受人们的喜爱。,单句改错。Thecountrysideisgraduallyswallowedupbynewdevelopmentnow.()Thepatientsarebeingtakencarebythenurses.()Willyougowithmetoseethefilmthatisshowntonight？()Thousandsoffamiliesarefleeingtheirhomesbecausetheircountryisund