Antarctica (南极洲) |
Weather Antarctica lies in the most southern part of the world. It is the coldest area on Earth. There isn’t much rain, but there is a lot of snow and wind. The lowest temperature was on 21 July in 1983 at -89.2℃ ! |
Population Nobody lives in Antarctica all the time! The first people to stay there for a while were fishermen in 1786. Now there are about 5, 000 scientists and researchers there in the summer |
History of exploration (探险) During 1907-1909, British explorer Earnest Shackleton explored Antarctica on foot. In 1911, two explorers — a British man named Scott and a Norwegian named Amundsen — raced 1, 400 kilometres to the South Pole (南极). Amundsen arrived first. |
Animals and birds There aren’t any large animals in Antarctica. Polar bears live at the North Pole. But there are a lot of penguins and seabirds. Every spring there are over 100 million seabirds in Antarctica. |
1.When did the lowest temperature appear in Antarctica?
A.In 1786. | B.In 1983. | C.In 1907. | D.In 1911. |
A.Fishermen. | B.Scientists. | C.Researchers. | D.Explorers. |
A.Penguins. | B.Seabirds. | C.Polar bears. | D.Fish. |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2