Question

Read the passage and fill in the blanks with proper words. (首字母填空):

An arctic fox walked 2,700 miles from Norway to Canada. Yes, that’s p1..

At first, the scientists w2. whether it was a mistake.

Just 21 days after leaving the Norwegian island of Spitsbergen, an arctic fox had arrived in Greenland. And in less than three months, it made it to Canada. The fox averaged (平均) nearly 30 miles a day t3. it walked almost 100 miles some days.

"When it started h4., we thought ‘is this really true?' "said Arnaud Tarroux, one of the scientists who tracked (追蹤)the female fox. Was there "an error (錯(cuò)誤) in the data?"

The data was real, the scientists decided as the fox kept going. The foxes 'travels last year, recorded in a recent paper, surprised Tarroux, even though the animal is known for its a5.to live in extremely cold areas.

Scientists already knew that some of the foxes, native to Arctic areas all around the Northern Hemisphere(北半球), made long j6.. But the fox these scientists followed got more attention for just how fast it travelled more than 2,700 miles.

"We didn't really know how the fox would do that and how long it would take for it to do this kind of trip," Tarroux said.

The scientists think the fox may have taken off because there was not enough food for it, but they're not sure. The tracker (追蹤器) stopped working in February, so the scientists no l7. know the place where the fox is.

Answer 1