中考英语名词复数形式构成方法：-um改为-a

中考英语名词复数形式构成方法：-um改为-aendostracum-endostraca壳，内层caecum-caeca盲肠vademecum-vademeca随身物品，手册，袖珍指南memorandum-memoranda/memorandums备忘录，（契约等条文的）节略，便签，便函notandum-notanda/notandums（拟）记录的事物，备忘录addendum-addenda/addendums补遗，附录，附加物pudendum-pudenda阴部（尤指女性的）corrigendum-corrigenda应改正的错误，正误表，勘误表definiendum-definienda被下定义的词referendum-referenda/referendums（关于政治措施、法律等的）公民投票，公民投票权，复决权propylaeum-proprylaea（神殿等的）入口peritonaeum-peritonaea腹膜gynaeceum-gynaecea（古希腊、罗马的）闺房，女眷内室，雄蕊群odeum-odea/odeums（古希腊、罗马）奏乐厅，音乐厅，剧场oleum-olea油oleum-oleums发烟硫酸mausoleum-mausolea/mausoleums陵墓，大而阴森的房屋（或房间）calcaneum-calcanea跟骨，空凹足succedaneum-succedanea代替人，代用品，替代物perineum-perinea会阴periosteum-periostea骨膜labium-labia阴唇,（昆虫的）下唇，下唇瓣rhizobium-rhizobia根瘤细菌属，任何一种根瘤细菌paramecium-paramecia草履虫gynoecium-gynoecia雌蕊群androecium-androecia雄蕊群palladium-palladia护卫，保障，雅典娜的神像stadium-stadia/stadiums露天大型运动场，赛跑运动场，龄期medium-media/mediums中间人，媒介物，传导体，手段，工具intermedium-intermedia/intermediums中间体，媒介物ascidium-ascidia（植物的）瓶状体nephridium-nephridia肾，肾管praesidium-praesidia/praesidiums主席团，常务委员会ommatidium-ommatidia/ommatidium（昆虫的）小眼pyxidium-pyxidia盖果antependium-antependia/antependiums（教堂圣坛前的）帷幔，屏布compendium-compendia/compendiums摘要，纲要，概要minifundium-minifundia小庄园，小领地，小地产latifundium-latifundia打庄园，大领地，大地产plasmodium-plasmodia变形体，原质团，疟原虫podium-podia/podiums墩座墙，乐队指挥台，交通指挥台pseudopodium-pseudopodia（动物的）伪足，（苔藓的）假蒴柄epicardium-epicardia心外膜，心包脏层pericardium-pericardia心包precordium-precordia心前区primordium-primordia原基exordium-exordia/exordiums（讲话、论文等的）开端，序言，绪论patagium-patagia翅膜，（鳞翅目昆虫的）领片contagium-contagia接触传染物florilegium-florilegia选集，作品集锦，花谱，群芳谱sporangium-sporangia孢子囊，（苔藓植物的）孢蒴horologium-horologia钟表，时钟座brachium-brachia肱，上臂ischium-ischia做骨，坐节，（昆虫的）侧板mycelium-mycelia菌丝体epithelium-epithelia/epitheliums上皮，皮膜endothelium-endothelia内皮，内种皮mesothelium-mesothelia间皮ilium-ilia髂骨，肠骨milium-milia粟粒疹，粟丘疹prothallium-prothallia原叶体pallium-pallia/palliums大披肩，（昆虫的）隔膜，大脑皮层，大脑皮质penicillium-penicillia/penicilliums青霉菌，毛丛scholium-scholia/scholiums（古典文学的）页旁注解，附注，例证encomium-encomia/encomiums赞扬，推崇，赞词，颂词cranium-crania/craniums头盖，头盖骨，脑壳pericranium-pericrania颅骨膜，头盖骨，头颅osteocranium-osteocrania骨颅chondrocranium-chondrocrania软骨颅proscenium-proscenium舞台前部，（泛指）前部，显著地位tirocinium-tirocinia学徒期限，学徒身份，技艺初步，技艺入门triclinium-triclinia（古罗马）环绕在桌面的躺椅pollinium-pollinia花粉块decennium-decennia十年biennium-biennia两年triennium-triennia三年millennium-millennia/millenniums一千年，太平盛世，想像中的黄金时期quinquennium-quinquennia/quinquenniums五年syconium-syconia隐头花序carpogonium-carpogonia果胞sporogonium-sporogonia孢原细胞spermatogonium-spermatogonia精原细胞principium-principia原理，原则，基础marsupium-marsupia育儿袋，卵袋syllabarium-syllabaria音节表，字音表columbarium-columbaria骨灰盒安置所，放骨灰盒的壁龛，鸽棚herbarium-herbaria植物标本集，植物标本室，植物标本盒solarium-solaria日光浴室，日光治疗室cinerarium-cineraria骨灰盒存放所honorarium-honoraria/honorariums酬金，谢礼insectarium-insectaria养虫室planetarium-planetaria/planetariums太阳系仪，天象仪，天文馆termitarium-termitaria白蚁巢armamentarium-armamentaria/armamentariums一套设备serpentarium-serpentaria/serpentariums蛇类展览馆aquarium-aquaria/aquariums养鱼缸，水族馆，水族槽vivarium-vivaria动物（或植物）园equilibrium-equilibria/equilibriums平衡，均衡，平均，相称disequilibrium-disequilibria/disequilibriums失去平衡，不均衡perichondrium-perichondria软骨膜imperium-imperia最高权力，绝对统治，管辖，执法权，主权bacterium-bacteria细菌delirium-deliria/deliriums说胡话，极度兴奋，发狂corium-coria真皮triforium-triforia教堂拱门上面的拱廊anticlinorium-anticlinoria复背斜synclinorium-synclinoria复向斜emporium-emporia/emporiums商场，商业中心，大百货商店sensorium-sensoria/sensorium感觉中枢sudatorium-sudatoria/sudatoriums热气浴室，热气浴crematorium-crematoria/crematoriums焚尸炉，火葬场fumatorium-fumatoria/fumatoriums密封熏蒸室，熏蒸sanatorium-sanatoria/sanatoriums疗养院，休养地moratorium-moratoria/moratoriums（依法给欠款人的）延期偿还权，（欠款的）延续偿还期natatorium-natatoria/natatoriums游泳池（尤指室内游泳池）auditorium-auditoria听众席，观众席，旁听席，讲堂，礼堂lubritorium-lubritoria机动车润滑油加油站atrium-atria/atriums（古罗马建筑物的）中庭，正厅，门廊，心房epigastrium-epigastria腹上部，第一膜片hypogastrium-hypogastria腹下部，下腹mesogastrium-mesogastria中腹部，（胚胎的）骨系膜gymnasium-gymnasia/gymnasiums体育馆，健身房，大学预科symposium-symposia/symposiums酒会，座谈会，专题讨论会，专题论文集epimysium-epimysia肌外膜endomysium-endomysia肌内膜，肌纤维衣solatium-solatia赔偿费cymatium-cymatia反曲线状，拱顶花边，波状花边consortium-consortia财团，联合企业，合作，合伙ostium-ostia口，门，孔syncytium-syncytia合胞体colloquium-colloquia/colloquiums（学术）讨论会，学术报告effluvium-effluvia/efflviums（臭气、液体的）散发，放出，恶臭气，无声放电diluvium-diluvia/diluviums洪积层，洪积流alluvium-alluvia/alluviums冲积层compluvium-compluvia房顶洞trapezium-trapezia梯形，不规则四边形，大多角骨velum-vela帆（尤指软腭），膜，缘膜，菌幕filum-fila丝hilum-hila脐，