阅读理解。
In 2000, at the age of 56, Jeff was going to take a difficult and dangerous journey (旅行) in the Arctic
(北极地区). He was planning to walk to the North Pole all by himself, pulling his food, tent (帐篷) and
other things behind him in two sledges (雪橇). Because the Arctic is covered with ice and water, he would
sometimes have to sit on his sledges and use them like a boat!
Before he started his journey, to make himself stronger, Jeff spent 2 years practicing running and took
part in many boat races. He had also traveled in the Arctic for 28 years. All of this was good for him. But
there was still trouble.
Jeff was seven days into his journey in the Arctic. It was dark and terribly cold (-35℃). In face of this
terribly low temperature, he had made good progress across the ice. Suddenly, the ice broke and one of his
sledges fell into the sea. Jeff needed to get it back, so he had to put his hand into the ice-covered water.
Once he had got the sledge back, Jeff put up his tent, lit a fire and tried to warm up his cold hand. It was
no help-his hand was seriously hurt as it had been in the cold for so long. He radioed for help, and an airplane
was sent to save him. Finally, he arrived at a hospital in Canada. The doctors there said he hurt his left hand
in the icy water. They saved his hand and advised him not to travel to the North Pole alone any more.
But Jeff was an explorer and nobody could change his mind. It would be yet another long and difficult
challenge for Jeff soon.
1. Jeff started to travel in the Arctic in          .
A. 1970
B. 1972
C. 1998
D. 2000
2. Jeff          for 2 years before his journey.
A. made a special tent
B. practiced running
C. had medical checks
D. took a long walk
3. After one of his sledges fell into the sea, what did Jeff do first?
A. He put his hand into water.
B. He lit a fire near the tent.
C. He warmed up his hand.
D. He put up his tent.
4. What can we infer (推断) from the last sentence of the article?
A. Jeff would practice more for the next journey.
B. Jeff would explore another part of the Arctic.
C. Jeff would try his best to realize his wish.
D. Jeff would refuse to take any advice.

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