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人称及人称代词的不同形式(主格和宾格)(1)三种人称:第一人称(I, we),第二人称(you, you),第三人称(he, she, it, Maria)。(2)人称代词的主格,即人称代词位于句子主语位置时的形态:I, We, You, You, He, She, It, Maria。(3人称代词的宾格,即人称代词位于句子宾语位置时的形态:me, us, you, you, him, her, it。(4)形容词性物主代词:my, our, your, your, his, her, its, their。(5)名词性物主代词:mine, ours, yours, yours, his, hers, its, theirs。(6)反身代词:myself, ourselves, yourself, yourselves, himself, herself, itself, themselves。2名词名词分为可数名词和不可数名词。不可数名词没有复数形式,可数名词有单数和复数之分,复数的构成如下:(1)最常见的是在后面加s。例:boy-boys、girl-girls(2)以s,x,sh,ch结尾加es。例:bus-buses、watch-watches(3)以辅音字母+y结尾,变y为i再加es。例:baby---babies、city-cities(4)以y结尾的专有名词或元音字母+y结尾的名词变复数时,直接加s。例:monkey---monkeys(5)有些以f或fe结尾的,把f或fe变ve加s。例:leaf-leaves、shelf-shelves
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