《Period four》课件.ppt

Crossinglimits,Unittwo,Periodfour,Grammar,ReviewthePredicate谓语表述主语的行为动作或所处的状态。谓语的中心词是限定动词，有人称、数的变化。谓语大体上可以分为两类：简单谓语和复合谓语。简单谓语凡是由一个动词或短语动词构成,不管是什么时态、语态、语气,都是简单谓语。,Theplanetakesoffat8butthismorningitmaybedelayedbythethickfog飞机八点起飞，但今天早晨可能会被大雾耽搁。Ihavetriedthiswaythreetimesandfailedthreetimes我用这种方法试了三次，失败了三次。,复合谓语复合谓语一般由两部分构成:一是带不定式的复合谓语(由情态动词或某些动词加不定式结构);一是带表语的复合谓语(由系动词或少数其他动词加表语构成).,Iwouldliketoinviteallmyfriendstotheget-together我想邀请我所有的朋友去参加聚会。Ourschoolbecomesmorebeautifulandmorecontactedwiththeoutsideworld我们的学校变得更加漂亮，与外界的联系也更广泛了。,英语中的主谓一致主要遵循三个原则：意义一致原则、语法一致原则和邻近原则。这三个原则常常发生矛盾，但当发生冲突时，意义一致原则为优先考虑的原则。语法一致原则主语和谓语通常是从语法形式上取得一致，即主语是单数形式，谓语动词也采取单数形式；主语是复数形式，谓语动词也采取复数形式。,Mr.Blackisawell-knownscientistonAIDS布莱克先生是著名艾滋病科学家。Thesebooksareintendedforchildrenundernineyearsold这些书是专门为九岁以下的儿童设计的。,意义一致原则所谓意义一致原则是指谓语动词的变化是以主语所表达的单、复数概念而定。Threemonthshaspassedsinceyouleft你已离开三个月了。(threemonths表示单数概念。)Theoldareverywelltakencareofinourcity老年人在我们城市被照顾得很好。(theold指所有的老年人，指一类人，指复数概念。),邻近一致原则邻近一致原则是指谓语动词的变化是以靠近谓语动词的主语部分而定。Neitherhisparentsnorhehimselfisabankclerk他父母和他本人都不是银行职员。NotJackbuthisparentsaretoblameforthehomeaccident不是杰克而是他父母应为这个家庭事故受到责备。,1.Underlinethepredicateineachofthefollowingsentences.,Ateamofscientistsdiscoversanimportantancientgravenearthevillageofnativepeople.2.IwasreadingabookaboutMarcoPolowhenyoucalled.3.Wecansendrobotsequippedwithcamerasandothertoolstodoobservationsforus.,Exercise,4.Aftertwoyearsofhardwork,thecouplepaidofftheirdebt.5.Theworldmapwasagreatpuzzletopeopleofearlycivilizations.6.Intheyear751,theChinesetraveler,DuHuan,wastakenprisonerbytheArabicarmy.7.NothingsimilarhaseverbeenfoundinEastAfrica.,8.Hehopestobecomeanarchaeologist.9.Youhadbettergonow,oryouwillbelatefortheinterview.10.HeisexpectedtobebackfromUrumqinextMonday.,2.Completethefollowingpassagewiththeproperformoftheverbsinbrackets.,ForhundredsofyearstheSilkRoadwasthemostimportantCentralAsiantraderoutefromtheeasttothewest.TheTangDynastywasprobablytheperiodwhentheroutewasatlistbusiest.Oneimportantcentreontheroad_(be)thecityofChangan,wheretodaysXian_(stand).ChanganwasthecapitalcityduringtheTangDynastyand,was,stands,byabout750ADit_(become)oneofthelargestcitiesintheworldwithapopulationofabouttwomillionpeople.Becauseofthegoodopportunitiesfortrade,alargenumberofforeignersfromcountriesnearChina_(live)inthecity.ThemarketsatthattimeinChanganwereperhapsthemostexcitinganywhereintheworld.They_(sell),became,lived,sold,goodsfromIndia,Africa,Japan,Korea,Turkey,Iranandothercountries,andmanyitemsinthemarkets_never_(see)before.However,despitethedesiretotrade,which_(draw)peopletogether,Chinawasstillamysteriouscountrytotheoutsideworldandtheprocessofmakingsilk_(remain)asecret.,had,beenseen,drew,remained,考点分析：Atlast，wefoundourselvesinapleasantparkwithtreesprovidingshadeand_downtoeatourpicniclunchAsittingBhavingsatCtositDsat本题考查并列谓语的选择。found与satdown应为并列谓语，而其余各项均为非谓语动词形式不能单独作谓语，解题时务必注意并列连词的作用.,ProfessorSmith，alongwithhisassistants，_ontheprojectdayandnighttomeetthedeadlineA.work