Whats this ? Its an apple. What are these? They are two apples.-What are these? -Whats this? -Its a pen. -They are pens.-What are those? -Whats that? -Its an English book. -They are English books.backpacks watches oranges pens -What are these ? -Theyre .maps cases keys -What are those ? -Theyre . 可数名词是指能以数目来 计算，可以分成个体的人或物 ，因此它有单数，复数两种形 式。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 、一般情况词尾加s 浊辅音和元音后读z 清辅音后读s 例词 bag bags bgz cup cups kps row rows ruzname pen book ruler names nemz pens penz books bks rulers
