英語(yǔ)特殊單數(shù)變復(fù)數(shù)1)單數(shù)名詞加s:students,apples,bags,trees,books,brothers. 2)以s、x、sh、ch結(jié)尾的名詞加es:glasses,boxes,brushes,matches. 3)以輔音字母加y結(jié)尾的名詞,變y為i加es:cities,babies,enemies.4)以f或fe結(jié)尾的名詞,多數(shù)變f為v加es:wives,knives.但有些詞只加s:roofs,proof s,chiefs. 5)以o結(jié)尾的名詞,有些加es:Negroes,heroes,tomatoes,potatoes.其它加s:radio s,zoos,pianos,photos. 6)不規(guī)則名詞：foot→feet,goose→geese,tooth→teeth,child→children,man→me n,woman→women,sheep→sheep,deer→deer,mouse→mice.7)某些外來詞變復(fù)數(shù)：datum→data,medium→media,bacterium→bacteria,curriculum→curricula,criterion→criteria,phenomenon→phenomena.(um/on→a)analysis→analyses,basis→bases,crisis→crises,diagnosis→diagnoses.(is→es ) 8)復(fù)合名詞變復(fù)數(shù)：以不可數(shù)名詞結(jié)尾的復(fù)合名詞無(wú)復(fù)數(shù)形式,如：homework. 以man或woman為前綴的復(fù)合名詞變復(fù)數(shù),前后兩個(gè)名詞都變復(fù)數(shù),如：manservant→menservants,woman student women students. 其它復(fù)合名詞變復(fù)數(shù)：grownup→grownups,brotherinlaw→brothersinlaw,standby→standsby.答案補(bǔ)充
9)復(fù)合形容詞做定語(yǔ)時(shí),其中的名詞保持單數(shù)：a sixyearold boy,a twohundredpage book 名詞復(fù)數(shù)：英語(yǔ)中名詞可分為可數(shù)名詞和不可數(shù)名詞.可數(shù)名詞在應(yīng)用時(shí)有單數(shù)和復(fù)數(shù)形式.表示一個(gè)用單數(shù),表示兩個(gè)或兩個(gè)以上用復(fù)數(shù).復(fù)數(shù)名詞的構(gòu)成分為規(guī)則變化和不規(guī)則變化.1.規(guī)則變化：1) 一般在名詞詞尾加s,① map—maps地圖,bird—birds鳥,orange—oranges 桔子,bike—bikes自行車； 答案補(bǔ)充
5) 以fe或f結(jié)尾的名詞,把fe或f變?yōu)関es ① knife—knives小刀 wife—wives妻子 leaf—leaves樹葉.二：名詞復(fù)數(shù)的不規(guī)則變化 1）child---children foot---feet tooth---teeth mouse---mice man---men woman---women 答案補(bǔ)充
,Chinese,Japanese li,jin,yuan,two li,three mu,four jin 但除人民幣元、角、分外,美元、英鎊、法郎等都有復(fù)數(shù)形式.如:a dollar,two dollars; a meter,two meters 3）集體名詞,以單數(shù)形式出現(xiàn),但實(shí)為復(fù)數(shù).如：people police cattle 等本身就是復(fù)數(shù),不能說 a people,a police,a cattle,但可以說 a person,a policeman,a head of cattle,the English,the British,the French,the Chinese,the Japanese,the Swiss 等名詞,表示國(guó)民總稱時(shí),作復(fù)數(shù)用.如：The Chinese are industries and brave.中國(guó)人民是勤勞勇敢的.4）以s結(jié)尾,仍為單數(shù)的名詞,如：a.maths,politics,physics等學(xué)科名詞,為不可數(shù)名詞,是單數(shù).b.news 是不可數(shù)名詞.
c.the United States,the United Nations 應(yīng)視為單數(shù).The United Nations was organized in 1945.聯(lián)合國(guó)是1945年組建起來的.d.以復(fù)數(shù)形式,也可視為單數(shù)."The Arabian Nights" is a very interesting story-book.是一本非常有趣的故事書.5) 表示由兩部分構(gòu)成的東西,如：glasses (眼鏡) trousers,clothes 若表達(dá)具體數(shù)目,要借助數(shù)量詞 pair(對(duì),雙); suit(套); a pair of glasses; two pairs of trousers 6） 另外還有一些名詞,其復(fù)數(shù)形式有時(shí)可表示特別意思,如：goods貨物,waters水域,fishes（各種）魚