【正文】 。daisy→daisies。bingo→bingoes 反例：silo→silos。staff→staves。讀音變化：尾音[is]改讀[i:z]。directrix→directrices。vacuum→vacua十、以a結(jié)尾的名詞，在該詞末尾加上后輟e。例：fish→fish。child→children。formula→formulae/formulas公式。radius→radii 半徑 tooth→teeth。film。clothes。maidservant→maidservants stepson→stepsons晚子。a meter, two meters 以O(shè)結(jié)尾的詞，許多加es構(gòu)成復(fù)數(shù)，特別是一些常用詞如：heroes,potatoes,tomatoes,echoes,tornadoes,torpedoes,dominoes,vetoes,mosquitoes,Negroes,mangoes,buffaloes,volcanoes但下面幾類(lèi)詞只加s：“元音+o”或“oo”結(jié)尾的詞如:videos,radios,studios,folios,oratorios,embryos,zoos,bamboos,kangaroos,taboos，特別是音樂(lè)方面的詞，如：pianos,solos,concertos,tobaccos,mottos,cellos ，如：kilos,photos,memos,micros,Eskimos,Filipnos 有個(gè)別詞加兩種詞尾都可以，如：archipelago(e)s,halo(e)s,cargoes(英），cargos(美）名詞由單數(shù)變成復(fù)數(shù)的練習(xí)寫(xiě)出下列名詞復(fù)數(shù)leaf______ puppy_______ box_______ knife_______ fly______ fox______ bus______ bench_____ brush_____ kiss______ church______ dish_____ ruler______ peach________ glass_____ pencil________ boy______ zoo______ man______ roof_______ sheep_______ knife______ lady______ key______ story______ watch______ bamboo______ city______ family______ day_____ apple_______ eraser______ speech______ thief______ mouse______ fish_____ goose____ people ______ ox_____ Chinese _______ deer _______ foot______ child_______ tooth_______ guy________ hero_______ spy______ boss_____ monkey______ city ______ goat ______ radio ________ horse ______ dog ______ 用所給的單詞的復(fù)數(shù)的正確形式填空：1There are so many________(wolf)in the There are three ______(chair)in the These _______(tomato)are ______(hero)are My brother looks after two ______(baby)6There are some ______(deer)eating the My father likes to eat _______(potato).8Chinese ______(people)like to eat I have a lot of ______(toy)in my I help my mother wash ______(dish)in the I have two ______(pencilbox).12There are some ______(bus)in the Peter has eight _____(foot).14Linda has three _______(tooth).15There are some ______(child)in the Michael likes the ______(mouse).17There are some ______(goose)in the My uncle and father are _____(man).19Tom and King are _____(boy).20Linda has three ______(tooth).選出正確形式1．I can see three ________ in the monkeysB monkeysC monkey pig has four two brothers are both are four ___________ in the can see ten _____ in the _____ has , watches, watch, watches an you see _______on the plate? girl often brushes her_____ before she goes to Black often drink some are some _____ on the will learn will show us some new ____ of drank two of orange of orange of oranges cat eats two ______ last need a pen and some 16 Jim was late for two classes this said that he forgot both of the number number ’s number numbers newlybuilt library is a ______ storeys’s storeys’ umbrella is it?It’s else’s else ’s else’s’s else feel terribly hot, What’s the _____? of room’s temperature temperature of room’s will make a trip around the world during the ing Evens Evens’ Evenses Evenses’ girl talking to Mary is a friend of ’s sister sister’s ’s sister’s of Mary’s woman over there is ______ and Shelley’s ’s and Shelley’s and Shelley’s and Shelley is very needs night rest rest night night’s rest rest of night24．Excuse me，where are _______ offices?Over there． A． teacher’s B． teachers’ C． the teacher’s D． the teachers’25． Today is September ’s_____ ’s go and buy some flowers for our ’ Teachers’ ’s。wages工資十八、pound nouns，這類(lèi)復(fù)數(shù)詞是以主要的名詞來(lái)表示例：daughterinlaw→daughtersinlaw 媳婦。sugar。trout 鱒魚(yú) 十六、一些名詞雖分單數(shù)、復(fù)數(shù)，但出現(xiàn)次數(shù)多的總是單數(shù)詞例：abscence。parenthesis→parentheses 圓括號(hào)。datum→data數(shù)據(jù)。例：man→men。hydra→hydrae十一、部分單詞的復(fù)數(shù)形式不變。aquarium→aquaria。讀音變化：尾音[iks]改讀[isi:z]。cactus→cacti。life→lives。potato→potatoes。讀音變化：加讀[z]。sport→sports。a pair of glasses。scissors剪刀。machinery機(jī)械。cannon。man→men mouse→mice。child→children。deer→deer。formula→formulae。讀音變化：去掉鼻尾音。naris→nares。例：fungus→fungi。macro→macros（縮寫(xiě)詞）五、以f或fe結(jié)尾的名詞，多為將f或fe改變?yōu)関es，但有例外。story→stories四、以o結(jié)尾的名詞，如果不是外來(lái)詞或縮寫(xiě)，就加es，否則加s構(gòu)成復(fù)數(shù)。fox→foxes。例：friend→friends。The United Nations was organized in 。復(fù)數(shù)名詞的構(gòu)成分為規(guī)則變化和不規(guī)則變化。Zhang Hua is the tallest of the works(the)hardest in his was the least exciting football game I’ve ever hotel is the