雅思阅读真题+题目+答案：Extinct: The Giant Deer

雅思阅读Extinct: The Giant Deer(麋鹿灭绝)

Toothed cats, mastodons, giant sloths, woolly rhinos, and many other big, shaggy mammals are widely thought to have died out around the end of the last ice age. some 10,500 years ago.

A  The Irish elk is also known as the giant deer (Megaloceros giganteus). Analysis of ancient bones and teeth by scientists based in Britain and Russia show the huge herbivore survived until about 5,000 B.C.-more than three millennia later than previously believed. The research team says this suggests additional factors, besides climate change, probably hastened the giant deer's eventual extinction. The factors could include hunting or habitat destruction by humans.

B  The Irish elk, so-called because its well-preserved remains are often found in lake sediments under peat bogs in Ireland, first appeared about 400,000 years ago in Europe and central Asia. Through a combination of radiocarbon dating of skeletal remains and the mapping of locations where the remains were unearthed, the team shows the Irish elk was widespread across Europe before the last “big freeze.” The deer's range later contracted to the Ural Mountains, in modern-day Russia, which separate Europe from Asia.

C  The giant deer made its last stand in western Siberia, some 3,000 years after the ice sheets receded, said the study's co-author, Adrian Lister, professor of palaeobiology at University College London, England. “The eastern foothills of the Urals became very densely forested about 8,000 years ago, which could have pushed them on to the plain,” he said. He added that pollen analysis indicates the region then became very dry in response to further climactic change, leading to the loss of important food plants. “ln combination with human pressures, this could have finally snuffed them out” Lister said.

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Question 28-32

Summary

Complete the following summary of the paragraphs of Reading Passage, using no more than three words from the Reading Passage for each answer. Write your answers in boxes 28-32 on your answer sheet.

Having been preserved well in Europe and central Asia, the remains of the Irish elk was initially found approximately 28____. Around 29____, they were driven to live in the plain after being restricted to the Ural Mountains. Hunting was considered as one of the important factors of Irish elk's extinction, people have not started hunting until 30____ when Irish elk used to get through under a variety of climatic fluctuations. The huge antlers may possibly contribute to the reason why Irish elk extinct, which was highly controversial as they live pleasantly over the span of 31____ . Generally, it is well-known that, at the last maximum ice age, mammals become extinct about 32____ .

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