【2015年人教版】九年级英语课件Unit6GrammarFocus（共35张PPT）VIP专享VIP免费

SectionAGrammarFocusTranslatethephrases.spreadtoothercountriesbyaccidentItissaid…overanopenfirefallintothewatertakeplacewithoutdoubt流传到其它国家偶然；意外地据说…在户外的火上掉入水中；落入水中发生毫无疑问；的确被动语态(PassiveVoice)结构:be+V-p.p.am/are/is+动词的过去分词was/were+动词的过去分词一般现在时的被动语态:一般过去时的被动语态:ManypeoplespeakEnglish.(主动语态)EnglishisspokenbymanypeopleThenaughtyboybrokethewindowyesterday.(主动语态)Thewindowwasbroken(bythenaughtyboy)yesterday.Weboughtsomebooks.主动句与被动句之间的转换Somebookswerebought(byus)主语谓语动词主动语态的过去式宾语主语谓语动词被动语态的过去分词介词+宾语主动句变为被动句所遵循的4个步骤：1.把原主动句中的宾语变为被动句的主语。2.把动词变为被动形式即be+过去分词，并注意其人称和数随主语的变化，而动词的时态则保持不变。3.原主动句的主语如需要则放在by后面以它的宾格形式出现（注代词的宾格），如不需要则可省略。4.其它的成分（定语、状语）不变。过去式被动语态的几种句型肯定句主语+be+过去分词+(by…)Asweetsongwassungbyheronthestage.2否定句主语+be+not+过去分词+(by…)3一般疑问句Be+主语+过去分词+(by…)?Asweetsongwasn’tsungbyheronthestage.Wasasweetsongsungbyheronthestage?4特殊疑问句疑问词+be+主语+过去分词+(by…)?Wherewasasweetsongsungbyher?被动语态的运用:（1）不知道谁是动作的执行者或没有必要知道谁是动作的执行者时。Thehouseisquiteold.Itwasbuiltin1950.这座房子太旧了，它是1950年建的。Whenwilltheroadbeopenedtotraffic?这条路什么时候通车?（2）需要强调动作的对象即宾语时。Calculatorcan'tbeusedinthemathexam.计算器不能用于数学考试。Hewasawardedfirstprizeinthatcontest.他在比赛中获得了第一。有时为了礼貌等原因不愿说出行为者,这时也常用被动语态。Theconstructionofthenewlabmustbecompletedbytheendofnextmonth.新实验室必须在下个月底前完工。Youarerequestedtogiveaperformance.请你给我们表演一个节目。（3）Whenwasthecarinvented?Itwasinventedin1885.Whoweretheyinventedby?TheywereinventedbyJulieThompson.Whataretheyusedfor?Theyareusedforseeinginthedark.Readthesentencesandpayattentiontotheunderlinedparts.一般讲，被动语态可用于英语的各种时态。为了能准确地运用被动语态，重点是要掌握be动词的各种时态变化。各种时态的被动语态举例如下：1、一般现在时的被动语态：am/is/are+动词的过去分词Ourclassroomiscleanedeveryday.ThiscarismadeinChina.2、一般过去式的被动语态:was/were+动词的过去分词Hisdeskwascleanedjustnow.Thestationwasbuiltin1928.Thecakelooksnice.Whomadeit?Itwasmadebymyaunt.Howdeliciousthesoupis!Whocookedit?ItwascookedbyMom.Whatabeautifulcarditis!Whomadeit?Itwasmadeby…Howcleantheclothesare!Whowashedthem?Theywerewashedby…2.Somebodystolemycamerafrommyhotelroom.Mycamerawasstolenfrommyhotelroom(bysomebody).3.Wheredidyoutakethesephotos?Wherewerethesephotostaken?4aRewritethesentencesusingthepassivevoice.4.Ourparentsadvisedusnottogooutalone.5.Differentwriterstranslatedthebookintodifferentlanguages.Wewereadvisedbyourparentsnottogooutalone.Thebookwastranslatedintodifferentlanguagesbydifferentwriters.1.Hewroteanarticlelastweek.Anarticlewaswrittenbyhimlastweek.2.Thepeoplemakehistory.Historyismadebythepeople.把下列的主动句变为被动句。ExerciseⅠ.单项选择1.---TodayChineseisbecomingmoreandmorepopular.---It_______inmanyschoolsaroundtheworld.A.teachesB.isteachingC.hastaughtD.istaughtD2.We_______toclosethewindowsbeforeweleftthelab.A.tellB.toldC.aretoldD.weretold3.---DidyouhearthatwaterinTaiLakesmeltterrible?---Yes.Infact,it_______.That'sallbecauseofthepeopleandthefactoriesaround....