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4、Until recently we had been living in the Yukon Territory in Canada, in a town seventy miles or so of the Arctic Circle．It is romantically called “The Land of the Midnight Sun “because during the summer the sun shines continuously，even at midnight．On the other hand, it is also called “The Land of Darkness” because in winter the opposite happens．

My classmates probably thought I liked to tell tales when I said I had to walk to school on a river in my hometown．But it was true．

When the darkness comes，so does the cold，because there is no sun to give warmth．The land becomes a world of ice and snow．The few roads that link villages are completely（完全地）covered with snow；people must travel on frozen rivers．If they do not have far to go，they put on snowshoes．These shoes prevent them from sinking into the thick snow．However，if they have a long journey to make they ride in dog sleds．

Rivers are very important to the people of the Yukon．When summer comes and the sun once more shines upon the land，the rivers become moving highways suitable for boats and canoes．

Of course，another important means of transportation for all of us in the village was the plane，which provided us with the only means of getting to the outside world．

1．Which of the following in NOT true according to the passage ？

A．The Yukon Territory is in Canada

B．Dogsleds are used for long journeys．

C．Winter is longer than summer in Yukon．

D．Planes are the only link with the outside world．

2．The underlined part in paragraph 2 means that my classmates    we walked to school on a river．

A．thought I liked telling tales when

B．felt excited when they learned that

C．thought I had a hard time when

D．thought it was unbelievable that

3．What is the main topic of the passage？

A．How to walk on a river in winter．

B．How the Yukon people travel．

C．The importance of planes in the Yukon．

D．The weather inside the Arctic Circle．