高中英语 It is well known that a good ( )of English is a must in international trade nowadays.knowledge是不可数名词,为什么前面可以用a

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高中英语 It is well known that a good ( )of English is a must in international trade nowadays.knowledge是不可数名词,为什么前面可以用a

高中英语 It is well known that a good ( )of English is a must in international trade nowadays.knowledge是不可数名词,为什么前面可以用a
高中英语 It is well known that a good ( )of English is a must in international trade nowadays.
knowledge是不可数名词,为什么前面可以用a

高中英语 It is well known that a good ( )of English is a must in international trade nowadays.knowledge是不可数名词,为什么前面可以用a
不可数名词使用冠词表示一类事物,而且有些不可数名词前加形容词,前面就可以用冠词,比如三餐前不加冠词,但是如果有形容词就可以加冠词

在英语中所谓的可数名词与不可数名词都是相对的,knowledge在表示一门学科这个意义时,就是可数名词。因此前面可以用a修饰。各人意见,仅供参考!

有些抽象名词表示 “某种”或 “ 一次” 的意思时, 可以和不定冠词连用.
如: He has received a good education.
Your advice is a great help.
We’re going to build up a new culture.