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高三英语第一轮复习Book 8 Module1-2 测标试题 一.语法填空Polar bears are suffering in a 1. _______ (warm) world than ever before. Polar bears live in environments too cold for most animals. 2 _______much of the year, they live and hunt on the frozen Arctic sea ice. Nature has prepared them for the cold 3._______(condition). But nothing has prepared the bears for the danger that 4.________ (threat) the only home they know. The polar bears’ world is melting. Studies show that the polar ice has reduced by 9.8% every 10 years 5._______ 1978. Now about 20,000 to 25,000 polar bears live in the Arctic. Polar bears depend on the sea ice for their 6._______ (survive). “The sea ice is more than just this platform that the bears walk over,” says Andrew Derocher, 7._______scientist who studies North American polar bear populations. “ 8. ________it, they can’t exist.” Some melting and refreezing of the polar ice is natural. 9. _______ in a warmer world, these cycles speed up, and bears have less time to hunt. Normally, they have three months in the spring when they gain more weight. The extra fat is used later, 10. _______ the bears are not actively hunting. 二. 短语运用（每题1分，共10分） in case of , nothing but, due to , come into sight, set foot on, | 
