this is a apple和this is apple有什么区别

this is a apple和this is apple有什么区别
this is a apple和this is apple有什么区别

this is a apple和this is apple有什么区别
如果说“这是一个苹果”,是需要加a的,a是一个冠词,如果没有冠词,就应该用apples.
如果是特指的话,应该用the,强调,就是这个苹果.

首先纠正一下，应该是This is an apple.
第一句侧重说明：这是一个苹果
第二句侧重说明：这玩意儿是苹果（不指名数量）

Correction: English 101 - This is an apple. Not a apple.(You introduce a fruit - an apple)
This is Apple - This is one of the correct way to write by capitalizing the A in apple. This becames an introduction of a gadget from Apple.