Question

【题目】Polar bears are suffering in a 【1】(warm) world.

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 【3】for the cold conditions. 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.

Answer 1

【答案】

【1】warmer

【2】they

【3】that

【4】has reduced

【5】survival

【6】a

【7】Without

【8】But

【9】to hunt

【10】when

【解析】本文是一片说明文，说明了在日益温暖的世界下，北极熊的生存现状与面临的危险。考查基本知识点，题目较容易。

【1】考查动词比较级用法 根据后文than提示 要用 warmer

【2】考查介词用法 在很多年中 用for/during

【3】考查动词词组用法 prepare sb for sth 这里的sb就指北极熊 故填them

【4】考查动词变化形式的用法 危险使他们受到威胁或者危险正让他们受到威胁 故填threatens/is threatening

【5】考查连词用法 The polar ice has reduced by 9.8% every 10 yearssince 1978. 自从1978年以来，北极冰每十年减少9.8% 而现在完成时也对应since 故填since

【6】考查动词形式的变换 their后应加名词 故填survival

【7】考查冠词用法 名词要么有冠词要么用复数， 而scientist没用复数 故填a

【8】考查文章理解 如果没有冰，北极熊就无法生存。故填without

【9】 考查连词用法 Some melting and refreezing of the polar ice is natural 与these cycles speed up，and bears have less time to hunt 这两句话是转折关系 故填But

【10】 考查连词用法 当北极熊不积极捕猎时，多余的脂肪就会在之后使用。故填when