Question

【题目】语法填空
Polar bears are suffering in a much (warm) world.
Polar bears live in environments too cold for most animals. During much of the year, they live and hunt on the frozen Arctic sea ice. Nature has （prepare）them for the cold conditions. But nothing has prepared the bears for the danger threatens the only home they know.
The polar bears' world is melting. Studies show that the amount of the polar ice （have）decreased by 9.8% every 10 years since 1978. Now about 20,000 to 25,000 polar bears live in the Arctic. Polar bears rely the sea ice for their survival. “The sea ice is more just this platform that the bears walk over,” says Andrew Derocher, scientist who studies North American polar bear populations. “ it, they can't exist.”
Some melting and refreezing of the polar ice is natural. But in a warmer world, these cycles speed up, and bears have less time (hunt). Normally, they have three months in the spring when they gain more weight. The extra fat is used later, when the bears are not (active) hunting.

Answer 1

【答案】warmer；prepared；that/which；has；on；than ；a；Without；to hunt；actively
【解析】这是一篇说明文，介绍了由于全球变暖，北极冰山融化速度变快，北极熊的生存环境受到威胁。
（1）考查形容词的比较级。much可修饰形容词比较级。故填warmer。
（2）考查动词时态。 根据时间状语During much of the yea，可知谓语动词用现在完成时，故填prepared。
（3）考查定语从句。“ ___3___ threatens the only home they know.”是一个限制性定语从句，修饰先行词the danger，在从句中作主语。故填that/which。
（4）考查主谓一致。"the amount of +名词" 做主语时时，谓语动词应用单数，故填has。
（5）考查固定短语。rely on 固定短语“依靠”，故填on。
（6）考查固定短语。句意：海上冰块不仅仅是北极熊行走的平台。more than 固定搭配，“不仅仅”，故填than。
（7）考查冠词。Andrew Derocher第一次出现.，故填不定冠词a。
（8）考查介词。句意，这句话的意思为“没有海上冰块，北极熊不能生存。”故填without.
（9）考查不定式。此处动词不定式充当定语。故填to hunt。
（10）考查副词。副词修饰动词作状语，故填actively。