“Here” or “This”?

Some of my students have problems with the word “here.” When they talk about Nagoya, they say “Here is Nagoya.” When they show me a picture of their hometown, they say “Here is my hometown.” However, it is more natural to say “This is…” in both cases. For example, ①“This is Nagoya. It is in Aichi Prefecture.” ②“This is my hometown. I have lived there since I was born.” We use “Here…” when we are giving someone something. When my children went to a local festival, I used to give them money and say, “Here is 100 yen. Go buy something.” We can also use it when we are showing someone something. “Have you ever seen an American passport? Here is my passport.” (125 words)