概括段落大意和补全句子：阅读下面短文，请完成短文后的二项测试任务：(1) 从第1~5题后所给的六个选项中为第①~⑤段每段选择1个正确的小标题；(2)从第6~10题后所给的六个选项中选择五个正确选项，分别完成每个句子。

① People often call them Eskimos (爱斯基摩人), but they prefer to be called Inuit, which means "humans" in their own language. The Inuit people learn English or French at school, but they speak their own language at home. Children are also given lessons on their traditional activities at school in their own language.
② The most famous kind of house the Inuit make is a small hut called igloo. The hut is a temporary shelter. It is used during hunting trips in winter. Today, most Inuit live in modern houses with heating systems. They also have television sets, telephones and the Internet.
③ Traditionally, the Inuit eat food rich in protein (蛋白质) like raw meat. Raw meat contains more vitamins than cooked meat, and is easier to eat in the Inuit's cold environment where lighting up a wood fire for cooking is impossible. Nowadays, the Inuit shop at the supermarket, drink Coca Cola and use the refrigerator.
④ In summer, men fish and hunt from their small boat made of wood or sealskin. In winter, they use dog sleds (雪橇). They sit still for hours waiting for a seal to pop its head up from a hole dug out of the ice. Today, it is much easier to hunt with guns, but the Inuit still prefer to use traditional weapons like throwing sticks.
⑤ The main threat the Inuit face today is the destruction of their environment. Global warming caused mainly by developed nations has terrible consequences on the area where the Inuit live. Animals are especially threatened. Some species are even dying off.