Question

【題目】語法填空
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】這是一篇說明文，介紹了由于全球變暖，北極冰山融化速度變快，北極熊的生存環(huán)境受到威脅。
（1）考查形容詞的比較級(jí)。much可修飾形容詞比較級(jí)。故填warmer。
（2）考查動(dòng)詞時(shí)態(tài)。 根據(jù)時(shí)間狀語During much of the yea，可知謂語動(dòng)詞用現(xiàn)在完成時(shí)，故填prepared。
（3）考查定語從句�！� ___3___ threatens the only home they know.”是一個(gè)限制性定語從句，修飾先行詞the danger，在從句中作主語。故填that/which。
（4）考查主謂一致。"the amount of +名詞" 做主語時(shí)時(shí)，謂語動(dòng)詞應(yīng)用單數(shù)，故填has。
（5）考查固定短語。rely on 固定短語“依靠”，故填on。
（6）考查固定短語。句意：海上冰塊不僅僅是北極熊行走的平臺(tái)。more than 固定搭配，“不僅僅”，故填than。
（7）考查冠詞。Andrew Derocher第一次出現(xiàn).，故填不定冠詞a。
（8）考查介詞。句意，這句話的意思為“沒有海上冰塊，北極熊不能生存。”故填without.
（9）考查不定式。此處動(dòng)詞不定式充當(dāng)定語。故填to hunt。
（10）考查副詞。副詞修飾動(dòng)詞作狀語，故填actively。