Unit 4 补充阅读材料 Canada 语法填空-2022-2023学年高中英语人教版（2019）选择性必修第二册

Canada—land of the maple tree Canada is one of the largest countries in the world, second only to Russia, and has always been famous for its fantastic natural scenery. Canada has vast areas of wilderness from the Arctic north, where average winter temperatures are usually minus 20 degrees centigrade to the 8892-kilometre-long border with the USA in the south, which is said to be the longest border in the world not defended by an army or the police. On the eastern and western boundaries, the country borders the two great oceans—the Atlantic and the Pacific. [geographic features] Within this huge country there are frozen wastes vast mountain ranges, enormous open plains, countless rivers and seemingly endless forests. There are many wild animals in the forests and on freezing, ice-colored lands in the north, and fish are abundant in the seas and rivers. For those who love outdoor activities, it is possible to hike, sail, cross-country ski or travel by snowmobile for hours—or even days-without meeting another person. Canadians, especially wildlife photographers and hunters are quite fond of this wilderness and you will be too! [beautiful scenery] Beautiful scenery is just one of the treasures Canada has to offer. The vast majority of Canada's population of about 30 million people is urban. You will be thrilled by Toronto, Montreal, Vancouver and Edmonton—all known internationally for their metropolitan lifestyle, beautiful architecture and unique culture. [urban areas/metropolis] Toronto, the largest city in Canada, is often said to be the most multicultural city in the world. People there have ancestors from Ireland, Portugal, China, Lebanon, Italy and Vietnam, as well as from many other places. Located in the heart of Toronto is the Canadian National Tower, which is often called the CN Tower for short. Rising 553 metres into the shy, it is the tallest tower in the world! Montreal, a port in the province of Quebec, is the second largest city in Canada, and also the