中国南方人(即居住在长江以南的人)以大米为主食，中国北方人则更喜欢吃面条和饺子。饺子有许多样式，从东

参考答案:Translation for reference
While rice is a staple food for southerners, (defined as those living south of the Changjiang River), the northern Chinese prefer noodles and dumplings. Jiaozi, or dumplings, take on many forms, their shapes shifting as they pass through the provinces in the northeast or north. But whatever their forms, the traditions that go with them do not change. Take feasting during the Spring Festival for example. On the eve of the Lunar New Year, most families keep vigil way past midnight, with every light in the house blazing. This custom is especially important for extended families since it is believed the vigil will ensure that the old folks have many healthy, happy years ahead of them. And making dumplings together is one way to keep oneself occupied during the long vigil.
答案解析:1．中国南方人(即居住在长江以南的人)以大米为主食，中国北方人则更喜欢吃面条和饺子。
这句话使用表达对比关系的连词while，连接两个分句。主食：staple food/principa