在下面①②③处补写恰当的语句，使整段文字语意完整连贯，内容贴切，逻辑严密。每处不超过10个字。

在人们的衣食住行中，“衣”排在第一位。    ①  ，因为人穿衣不仅仅是为了“蔽寒暑”、防虫防风雨、遮体避羞等，还具有装饰身体、美化生活，显示人的身份地位、民族信仰等作用。因此我国古代服饰成为了民族历史、文化的一个重要载体。  ②  ，为什么我国许多少数民族生活条件很一般，但其民族服饰之精美，令人惊叹。“衣”能排在“衣食住行”之首，  ③    ，就是我国冬季十分严寒，许多贫困古人多为缺衣御寒所苦。“衣”之影响深入到了中国文化和古人生活的方方面面。

    On one evening 30 years from now, you might sit down to a table and get ready to have your dinner. What will you be eating? Will the food still be the same as it is now? Here are a few possible choices for the future.

Insects

    Insects take up little space and don't make much waste. They also have more protein than beef, chicken and pork. This makes insects another possible food of the future. Most people probably won't want to see the insects they eat. So in the future, people will first turn insects into powder to make with other foods like chips and biscuits.

Vegetable meat

    A new kind of burger(汉堡包)is now popular in the United States. It looks and tastes the same as any other burgers. But it's actually a "beef" burger made out of plants. People use peas and potatoes to make the "beef". They take coloring, protein and fats from these plants and mix them together.

Algae（藻类）

    It is said that algae farming could become the world's biggest farming in the future. Algae is cheap and grows, very quickly. Also, it is very good for people. It has much more protein and oil than many other plants. People may also use algae oil and algae butter in the future. Some algae has a strong taste.

Manmade meat

    Meat grown in labs might be another kind of future food. People use stem cells(干细胞) from animals to grow the meat. Chicken, beef, and pork can all be made this way. Manmade meat can be healthier than traditional meat. People can control what type of fat goes into the meat. They can choose only healthy fats.