John usually goes to school by bus. He leaves (离开)his house at seven and gets to school at about seven twenty. His school is on the hill.

    From Monday to Friday John usually has four classes every day. He likes English. He wants to be an English teacher. He hopes he will go to the USA to study English one day. On Sundays, he often goes to the library with his friends, but sometimes they go to see movies.

国际上通常的看法是，当一个国家或地区60岁以上的人口占人口总数的10%，或65岁以上人口占人口总数的7%，即意味着这个国家或地区的人口处于老龄化社会。下图为中国香港老年人口5年内增加速度示意图，回答下列问题。