2、名詞復數(shù)規(guī)則

(1).一般情況下,直接加-s,如:book-books, bag-bags, cat-cats, bed-beds

(2).以s. x. sh. ch結(jié)尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches

(3).以"輔音字母+y"結(jié)尾,變y為i, 再加-es,如:family-families, strawberry-strawberries

(4).以"f或fe"結(jié)尾,變f或fe為v, 再加-es,如:knife-knives

(5)不規(guī)則名詞復數(shù): man ---men, woman---women, policeman---policemen, policewoman---policewomen, mouse---mice child---children foot---feet,.tooth---teeth fish---fish, people---people, Chinese---Chinese, Japanese---Japanese

1.主格一般用在句中作為主語,一般用在動詞前(除疑問句)

2.賓格多用于動詞介詞后面。

3.形容詞性物主代詞后面必須要跟名詞。

4.名次性物主代詞=形容詞性物主代詞+名詞