1)单数名词加s: students, apples, bags, trees, books, brothers.
2)以s、x、sh、ch结尾的名词加es: glasses, boxes, brushes, matches.
3)以辅音字母加y结尾的名词,变y为i加es: cities, babies, enemies.
4)以f或fe结尾的名词,多数变f或fe为v加es: wives, knives.但有些词只加s: roofs, proof s, chiefs.
5)以o结尾的名词,有些加es: Negroes, heroes, tomatoes, potatoes.其它加s: radio s, zoos, pianos, photos. 以o结尾的名词,若该名词表示有生命,则在o后面加es.
6)不规则名词:foot→feet, goose→geese, tooth→teeth, child→children, man→me n, woman→women, sheep→sheep, deer→deer, mouse→mice.
7)某些外来词变复数: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)复合名词变复数:以不可数名词结尾的复合名词无复数形式,如:homework.?
以man或woman为前缀的复合名词变复数,前后两个名词都变复数,如:manservant→menservants, woman student women students.?
其它复合名词变复数:grown up→grown ups, brother in law→brothers in law, stand by→stands by.
9)复合形容词做定语时,其中的名词保持单数:a six year old boy,a two hundred page book
1. Two American (visit) will come to our school.
2. We"ll learn the ____________ (twelve) unit next week.
3. Why are you so ____________ (forget) , Mike?
4. The yellow River is the second ___________(long) river in China.
5. I"m ____________ (true) sorry to hear that.
6. There are some children ____________ (play) football on the playground.
7. The ____________ (man) names are Li Ping、Wang Lin and Yang Li .
8. This book is mine. That one is____________ (they).
9. The cat wanted to be on the side of the ____________ (win).
10. Three (five) in our class are boys.
A. tomatos, cheese
B. tomatoes, cheeses
C. tomatoes, cheese
D. tomato, cheese
1. Australia has beautiful beach.
A B C D
2. Kangaroo live in Australia.
A B C D
3. The U.K."s flag is same colour as the flag of the U.S.!
A B C D
4. What are you want to do on Sundays?
A B C D
5. The president of United State lives in the White House.
A B C D
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