英语种类问题cake is a kind of foodcake is a kind of foodan elephant is a useful animalthe dog is intelligent cats are very useful animal都表示种类么?
问题描述：
英语种类问题cake is a kind of food
cake is a kind of food
an elephant is a useful animal
the dog is intelligent
cats are very useful animal
都表示种类么?
答
英语中表示类别常用的有：
a + 可数名词单数：a book
the + 名词 the book
可数名词复数 books
还有你列的第一种,不可数名词