教材习题点拨

　　WARMING UP

　　Answers：

　　1C　2D　3A　4B　5A

　　COMPREHENDING

　　Suggested answers to Exercise 1：

　　1 They are crossing North America.

　　2 They are not flying directly to the Atlantic coast because they want to take the train from west to east across Canada./They want to see Canada./They want to travel across Canada.

　　3 The population of Vancouver is growing so rapidly because it is beautiful./It is surrounded by mountains and ocean./People can ski in the mountains and sail in the harbour.

　　4 At the Calgary Stampede cowboys compete in riding wild horses for thousands of dollars.

　　5 Ships are able to reach the centre of Canada because they can follow the St Lawrence River and the Great Lakes.

　　6 Canada has fresh water from its lakes and rivers and wood from its forests.

　　Suggested answers to Exercise 2：

　　续表

Basic Facts about Canada Distance from east to west coast 5，500 km Oceans on east and west coasts Atlantic Ocean - east；Pacific Ocean - west Population slightly over 30 million Where most Canadians live within a few hundred kilometres of the USA border Key point about Vancouver Canada's warmest part/Canada's most beautiful city/some of the oldest and most beautiful forests in the world(accept any reasonable answers from the text)