Unit one ends with Ms. Green talking with Shin and her telling Shin that she is from Canada. While Emi is putting away her shoes, she is listening to their conversation. I will skip over the fact that 99.9% of students would already know where their teacher is from because they would have already listened to their English teacher give a big speech in front of the entire school outlining where they are from. Let's move onto how it transitions into unit 2.
Unit two starts with Emi pointing to a map and stating to Ms. Green, "This is your country." IS EMI A RETARDED HANDICAPPED STUDENT!?!? I think Ms. Green probably knows where her country is located, but in all fairness, Ms. Green is a blonde...
If the textbook writers were trying to go for a natural English feel, coupled with how much the average Japanese JHS student knows about the outside world, I would think Emi lead off with a question, "Is this your country?"
I think Shin might be a handicap student as well because on the very next page, he points at a classroom and says to Ms. Green, "That's a classroom," as if Ms. Green was going to confuse students sitting at their desks as the massive community toilet area.
Otaku, close the textbook and walk away...

