题目

Antarctica, the coldest place on Earth, is the fifth 61_________(large) continent in the world. The conditions there are quite extreme with 62________(near) no rainfall. 98 percent of the land 63__________（cover）permanently by ice. However, it is full of wildlife like the penguins, 64________ can adapt 65________ its hard conditions. The ice there has become a window on the past with gases and minerals 66________(trap) in it. Not until the late 18th century did James cook 67________(across) the Antarctica Circle. Then in 1895, a Norwegian 68__________(explore) called Carstens set foot on the mainland. In 1961, 12 countries signed a treaty to make 69________ the biggest nature reserve of the world.  Today, many scientists go there 70________(study) its resources and to work together for progress and peace. 答案：61. largest     62. nearly    63. is covered      64. which             65. to 66. trapped      67. cross     68. explorer        69. Antarctica或 it      70. to study

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