UNIT4DISCOVERINGUSEFULSTRUCTURES课件高中英语人教版必修第二册

DiscoveringUsefulStructures含义：过去分词一般表示完成的和被动的动作。形式：done变化规则：规则动词的过去分词由动词原形加-ed构成，不规则动词的过去分词没有统一的构成规则。举例：an________player一个受伤的球员a________vase一个破花瓶过去分词Lead-in

Lookatthesentences

andunderlinethepastparticiples.

injuredbroken

Lookatthesentencesandunderlinethepastparticiples.(1)Mostpeoplejustusetheshortenedname:“theUnitedKingdom”or“theUK”.(2)Theyusethesameflag,knownastheUnionJack,...(3)TheyhadcastlesbuiltallaroundEngland.三个例句中分词或分词短语的句子成分是什么？作定语作定语和宾语补足语作定语作宾语补足语(1)Mostpeoplejustusetheshortenedname(2)Theyusethesameflag,

known

astheUnionJack,…(3)Theyhadcastlesbuilt

allaroundEngland.过去分词作定语和宾语补足语的用法presentationSummarize：shortened在句1中位置在名词______,knownas在句2中位置在名词______。1.2句中分词和分词短语都用来修饰______，做定语；句子3名词castles是作had的宾语，所以built是对名词castles进行补充说明，做__________（简称宾补），短语__________过去分词作定语的位置1.前置定语一般情况下，单个过去分词作前置定语，即放在所修饰词之前。Mostpeoplejustusetheshortenedname2.后置定语过去分词短语作定语时往往作后置定语，即放在所修饰词之后。Theyusethesameflag,

known

astheUnionJack,…presentationPastParticiplesastheAttribute(1)PastParticiplesastheAttribute(2)tiredvisitorsawell-organisedtripbeautifullydressedstarsvisitors_______ofthelongwait/…atrip___________wellbymyworkplace/…stars_________beautifullyattheevent/…tiredorganiseddressed过去分词作定语和宾语补足语的用法后置定语：过去分词短语作定语时位于被修饰词之后前置定语：单个的过去分词作定语一般前置观察过去分词作定语在位置上的不同，可以得出什么结论？常见的过去分词作宾语补足语的情况1．过去分词用在使役动词have/get和make的后面作宾语补足语。“have/getsthdone”表示“让别人做某事”。Hewantsto

have/gethiseyesexaminedtomorrow．他明天想去检查眼睛。常见的过去分词作宾语补足语的情况2．过去分词用在表状态的动词keep,leave等词的后面作宾语补足语。Hepassedaway,leavinghisworksunfinished．他去世了，留下他的著作还未完成。常见的过去分词作宾语补足语的情况3．感官动词see,hear,notice,observe,watch,feel,find等后，可用过去分词作宾语补足语。Whenwesawtheroadblockedwithsnow,wedecidedto…当我们看到道路被雪封住后，我们决定……Thenextmorningpeoplefoundtheworldchanged．第二天早上，人们发现外面的世界变了样。常见的过去分词作宾语补足语的情况4．表示“意愿；命令”的动词，如like,want,wish,expect,order等可用过去分词作宾语补足语。Heorderedtheworkfinishedthisweek．他要求在这周完成这项工作。practiceReadthesentencesandunderlinethe-edformastheobjectcomplement.1JudyandIhadourcarparkedinanundergroundcarparknearTrafalgarSquare,wherewecouldgetourcarbatterycharged.2Whenwefinallyreachedtheservicedesktoaskforaudioguides,wehearditannouncedthattherewerenoaudioguidesleft.3WefoundourselvesverysurprisedbythelargenumberofvisitorsandtheamountofnoiseattheentranceoftheNationalGallery.Readthesentencesandunderlinethe-edformastheobjectcomplement.4JudyhadhereyesfixedonVanGogh'sSunflowers.Itwashardtoapproachthepainting.asthereweresomanypeoplearound.5Shehadacopyofthepaintingboxedtoensurethatitwasdeliveredsafely.practice意义形式语态时态过去分词被动完成现在分词主动进行3．过去分词与现在分词作定语的区别Asweallknow,Chinaisadevelopingcountry．众所周知，中国是一个发展中国家。Thevisitorisfromadevelopedcountry．这位游客来自一个发达国家。Summary过去分词与它相关联的名词时是被动关系单个分词作名词的定语时，其位置在名词前；分词以短语形式出现则其位置在名词后分词及分词短语作定语：astheattribute分词短语作宾语补足语：astheobjectcomplement后置定语：过去分词短语作定语时位于被修饰词之后前置定语：单个的过去分词作定语一般前置当过去分词是复合形式，一般放在被修饰词前面作前置定语当被修饰词是不定代词时，过去分词放在不定代词后面，作后置定语4Rewritethesentenceswithpastparticiplesastheattribute.(1)LochNesswassurroundedbybeautifulnaturallandscape,whichmadeitlookamazing.___________________________________________________________(2)Carlandhisfriendsstayedwithagenerousfamilywhoofferedthembreadwithbutterandmade.________________________________________________________________________________________________________________________LochNesssurroundedbybeautifulnaturallandscapelooksamazing.Carlandhisfriendsstayedwithagenerousfamilywhoofferedthemhomemadebreadwithbutterandhoney.production(3)Thefamily'sancestorsonceattendedtosoldierswhowerewoundedintheFirstWorldWar._____________________________________________________________________(4)TheyoungpeoplewereattractedbythelegendofLochNess.Theywatchedoverthelakewiththeircamerasandbinoculars,whichwerepositionedonthehill.____________________________________________________________________________________________________________________________________________Thefamily'sancestorsonceattendedtowoundedsol