九年级被动语态教学文案.ppt

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1、九年级被动语态2.Theartofpapercutting_______asimplethinglikeapieceofpaper_____abeautifulpieceofart.Peopleoften_____theseartpieces____thedoors,windowsandwallsoftheirhomestocelebratetheSpringFestival.3.TomakeChineseclayart,theclayisshapedbyhandintothings________cutechildrenorcharactersfrom

2、Chinesefairytalesandstories.Theyarethen___________paint.turnsintoputonsuchascoveredwith3Completethesentencesusingthecorrectformsofthewordsinbrackets.1.Cheese________(make)frommilk.2.Parentsandstudents___________(invite)totheschoolconcertlastnight.3.Theundergroundparkinglot_______

3、_(close)atmidnighteveryday.4.Thereisalotofresearchonhowlanguages__________(learn).5.Someclassicfilms__________(show)atthatcinemalastweek.ismadewereinvitedisclosedarelearnedwereshown语法①英语有两种语态：主动语态和被动语态主动语态表示主语是动作的执行者。被动语态表示主语是动作的承受者时态被动语态结构例句一般现在时amare+过去分词isEnglishisspokeninmany

4、countries.一般过去时was+过去分词were+过去分词Thisbridgewasbuiltin1989.情态动词情态动词+be+过去分词Theworkmustbedonerightnow.一般现在时：am／is／are＋done一般过去时：was／were＋done一般将来时：will／shallbe＋done现在进行时：am／is／arebeing＋done过去进行时：was/werebeing＋done现在完成时：have/hasbeen+done过去完成时：hadbeen+done③被动语态的用法：当我们不知道谁是动作的执行者，或者没有必

5、要指出谁是动作的执行者，或者只需强调动作的承受者时，要用被动语态。Catseatfish.（主动语态）猫吃鱼。Fishiseatenbycats.(被动语态)鱼被猫吃。②被动语态的构成：由“助动词be＋及物动词的过去分词”构成。助动词be有人称、数和时态的变化，其变化规则与be作为连系动词时完全一样。主动语态变被动语态的方法（1）把主动语态的宾语变为被动语态的主语。（2）把谓语变成被动结构（be＋过去分词）（根据被动语态句子里的主语的人称和数，以及原来主动语态句子中动词的时态来决定be的形式）。（3）把主动语态中的主语放在介词by之后作宾语，将主格改为宾

6、格。例如：Allthepeoplelaughedathim.→Hewaslaughedatbyallpeople.Theymakethebikesinthefactory.→Thebikesaremadebytheminthefactory.Hecutdownatree.→Atreewascutdownbyhim.（五）含有情态动词的被动语态含有情态动词的主动句变成被动句时，由“情态动词＋be＋过去分词”构成例如：Wecanrepairthiswatchintwodays.→Thiswatchcanberepairedintwodays.Theyshou

7、lddoitatonce.→Itshouldbedoneatonce.（六）特殊情况1.Hemadetheboyworkfortwohoursyesterday.→Theboywasmadetoworkbyhimfortwohoursyesterday.2.MotherneverletsmewatchTV.→IamneverlettowatchTVbymother.3.JackgavePeteraChristmaspresentjustnow.→（1）AChristmaspresentwasgiventoPeterbyJackjustnow.→（2）Pe

8、terwasgivenaChristmaspresentbyJackjustno