名词单复数讲解名词单数变复数What’sthisinEnglish?It’sanapple.Whatarethese?Theyaretwoapples.--Whatarethese?--What’sthis?--It’sapen.--Theyarepens.--Whatarethese?--What’sthis?--It’sabook.--Theyarebooks.backpackswatchesorangespens--What’rethese?--They’re….mapscaseskeys--What’rethese?--They’re….单数复数可数名词如何变化?规则变化不规则变化规则变化1.一般情况下,直接在词尾加-s构成复数形式。tigerpandatigerspandasdogdogs1.namepenpencilrulernamespenspencilsrulers
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