初中英语冠词填空,并说出原因!

题目

初中英语冠词填空,并说出原因!
原因!一定要有原因~
1.He said he would visit ____ Africa ____ next week
2.They went to ____ Zhongshan Park on _____ National Day.
3.This is _____ teacher I've told you about.Isn't he ____ good one?
4.We had ____ lunch together ____ moment ago.
好的话可以另加分~

答案

1、the,the
2、the,the
3、the,a
4、the,a
关于冠词：a/an 是泛指,the是特指
1、他说过下周（特指）将要访问非洲（特指）.
2、国庆节他们去了中山公园（中山公园、国庆节都是特指）
3、这就是我给你说过的那位老师（特指）,难道他不好吗（a good one泛指）?
4、我们刚刚吃了午饭.have a lunch(吃午饭) a moment ago(刚才)都是习惯用法,而且都是泛指.不过此处have the lunch似乎需要特指