bamboo or bamboos?Some___ are even thinner than your little finger.A.kinds of bamboo B.kinds of bamboos为什么正确答案是A,不是B呢?bamboo不是可数名词么?为什么不加s?

Question

bamboo or bamboos?
Some___ are even thinner than your little finger.
A.kinds of bamboo
B.kinds of bamboos
为什么正确答案是A,不是B呢?bamboo不是可数名词么?为什么不加s?

Answer 1

高手也来问,不耻下问,好样的!
Some_A__ are even thinner than your little finger.
A.kinds of bamboo
B.kinds of bamboos
翻译：几根竹子甚至比你的小手指还要细（明显是几根竹子,不是几种竹子）
做确定的竹子的根数讲时 不可数; 比如几根竹子,此时不能用复数形式;
做竹子的种类讲时,可数;比如好多种竹子,此时用复数形式;
同样的 FISH也是一样,几条鱼,不可数;几种鱼,可数;