13) 名詞的復(fù)數(shù)構(gòu)成的幾種形式
名詞復(fù)數(shù)的構(gòu)成可分為規(guī)則變化和不規(guī)則變化兩種。
I 名詞復(fù)數(shù)的規(guī)則變化
1.一般在名詞詞尾加-s。如:
pear---pears hamburger---hamburgers
desk---deskstree---trees
2.以字母-s, -sh, -ch, -x結(jié)尾的名詞,詞尾加-es。如:
class---classes dish---dishes
watch---watches box---boxes
3.以字母-o結(jié)尾的某些名詞,詞尾加-es。如:
potato---potatoes tomato---tomatoes
Negro---Negroes hero---heroes
4.以輔音字母加-y結(jié)尾的名詞,將-y變?yōu)?i,再加-es。如:
family---families dictionary---dictionaries
city---cities country---countries
5.以字母-f或-fe結(jié)尾的名詞,將-f或-fe變?yōu)?v,再加-es。如:
half---halves leaf---leaves
thief---thieves knife---knives
self---selves wife---wives
life---lives wolf---wolves
shelf---shelves loaf---loaves
但是:
scarf---scarves(fes) roof---roofs
serf---serfs gulf---gulfs
chief---chiefs proof---proofs
belief---beliefs
II 名詞復(fù)數(shù)的不規(guī)則變化
1.將-oo改為--ee。如:
foot---feet tooth---teeth
2.將-man改為-men。如:
man---men woman---women
policeman---policemen postman---postmen
3.添加詞尾。如:
child---children
4.單復(fù)數(shù)同形。如:
sheep---sheep deer---deer
fish---fish people---people
5.表示"某國(guó)人"的單、復(fù)數(shù)變化。
即"中日瑞不變英法變,其它國(guó)把-s加后面"。如:
Chinese---Chinese Japanese---Japanese Swiss---Swiss
Englishman---Englishmen Frenchman---Frenchmen
American---Americans Australian---Australians
Canadian---Canadians Korean---Koreans
Russian---Russians Indian---Indians
6.其它。如:
mouse---mice
apple tree---apple trees
man teacher---men teachers