(cold) place on Earth，is 2.

　　fifth largest continent in the world.The conditions there are quite extreme with nearly no rainfall.98 percent of the surface 3.

　　(cover) permanently by ice and strong winds 4.

　　(drive) by gravity blow from the pole to the coastline.However，it is full of wildlife like the famous penguins,5.

　　can adapt to its hard conditions. The ice there has become a window on the past with gases and minerals 6.

　　(trap) in it.It was not until

　　coldest the is covered driven which trapped 答案 1895 that a Norwegian explorer 7.

　　(call) Carstens Borchgrevink set foot 8.

　　the Antarctic mainland.In 1961,12 countries signed a treaty to make

　　9.

　　the world’s biggest nature reserve.Today scientists from all over the world go there to study 10.

　　(it) resources and to work together for progress and peace. called on it its 答案

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