定冠词,不定冠词以及名词复数表示“种类”时意义上有什么区别吗?请教各位高手,谢谢!例如这三句话：Amonkeyisacleveranimal.Themonkeyisacleveranimal.Monkeysarecleveranimals.

Question

定冠词,不定冠词以及名词复数表示“种类”时意义上有什么区别吗?请教各位高手,谢谢!
例如这三句话：A monkey is a clever animal.
The monkey is a clever animal.
Monkeys are clever animals.

Answer 1

1、a／an+单数名词、the+单数名词、零冠词+复数名词／不可数名词时,所用冠词都可表类指,但也有细微区别：
(1)“the+单数名词”指的是整个类别,这个类别是可以区别于另一个类别的.如：
The car goes faster than the bike．
The horse is a kind of useful animal.
The telephone was invited by Green Bell.
(2)“a／an+单数名词”侧重于指类别中任何一个的特点.
A tiger is a type of very large fierce wild cat that has yellow fur with black bands across；
(3)“零冠词+复数名词／不可数名词”侧重指类别中的许多个体.如：
Farmers are busy in autumn．
(4)在类指时,如何使用冠词要根据所要表达内容的具体情况而定.如：
The tiger is in danger of becoming extinct． 虎有灭绝的危险.
(不能说：A tiger is in danger of becoming extinct．因为濒临灭绝指的是整个虎类,而不是任何一只虎都面临灭绝的危险.)