阅读理解

　　John Thomson was born in 1827 in Norway and moved to the United States with his parents when he was ten years old. In 1851, John Thomson went west to California to try his luck at finding gold. However, he had very little success, so he decided to give up mining and buy a small farm. His new farm was high on the western side of the Rocky Mountains. In winter, deep snow closed the pass from the eastern to the western side of the mountains, sometimes for weeks at a time. No one could enter or leave; not even the mail(邮件)could be delivered(投递).

　　Thomson was an imaginative man. He made himself a pair of skis(滑雪板)and practiced on the snowy fields near his house. In January 1856, he went to the post office and told the postmaster that he would carry the mail over the closed pass. It took Thomson almost four days to travel the 90 miles from the post office to the small town near his farm where he delivered the mail. His pack of mail often weighed 80 pounds, so he carried little food and no blankets. When he stopped to rest, he made a small fire and put his feet near it to keep them warm.

　　After a dozen years of delivering the mail in this way, a railroad was completed over the pass, and Thomson's mail service was no longer needed. He retired(退职)with the thanks of his grateful neighbors and returned to being a farmer. He continued skiing for pleasure in his spare time.

1．John Thomson went west to California in ________.

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2．Thomson bought a farm because ________.

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A．he wanted a place where he could ski

B．he wanted to live in the mountains

C．he was an imaginative man

D．he had little success as a gold miner

3．Thomson thought he could deliver the mail by ________.

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A．walking the 90 miles over the pass

B．going to the post office by train

C．skiing over the snowy pass

D．practicing on the snowy fields

4．Thomson carried little food and no blankets because ________.

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A．he skied for pleasure in his free time

B．he stopped at a nearby town to rest

C．the pack of mail was very heavy

D．the trip took only four days

5．Thomson stopped delivering the mail when ________.

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A．the post office closed

B．a railroad was built through the mountains

C．his neighbors asked him to retire

D．deep snow closed the pass

6．After Thomson retired, he ________.

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A．made skis for his friends and neighbors

B．tried his luck at finding gold

C．gave away his skis

D．continued to ski in his spare time