There is a store near my home. It is big. It has lots of things in it. You can buy school things like notebooks, pens, pencil cases, rulers and maps. You can also buy drinks, vegetables, fruit and all kinds of food. It doesn't sell clothes. Some of them are cheap. But some of them are expensive.

    People in the store are very friendly(友好的). They work from eight in the morning to eight in the evening. They work hard(努力地)all day.

Tony never spends money on buying books                  he doesn't like reading.

古代时，由于无法解释日食成因，人们迷信地认为日食是-种凶兆．现在我们可以用光的 ____来解释日食的成因，如图所示。有乒乓球、足球和瓦数较大的白炽电灯，请你用这三种物品代表相应的星球，设计出观察日食成因的实验，并根据三个星球排列的位置，按示例，把答案填写在横线上。
用 ____代表 ____；用 ____代表 ____。

如图①②③为几条重要的地理界线，据图完成问题：

处于亚洲和大洋洲，太平洋与印度洋之间的“十字路口”的地区指（    ）