Question

【題目】Polar bears are suffering in a much 【1】 (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 【2】 （prepare）them for the cold conditions. But nothing has prepared the bears for the danger 【3】 threatens the only home they know.

The polar bears’ world is melting. Studies show that the amount of the polar ice 【4】（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 【5】the sea ice for their survival. “The sea ice is more 【6】 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. But in a warmer world, these cycles speed up, and bears have less time 【9】 (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 【10】

(active) hunting.

Answer 1

【答案】

【1】warmer

【2】prepared

【3】that/which

【4】has

【5】on

【6】than

【7】a

【8】Without

【9】to hunt

【10】actively

【解析】這是一篇說(shuō)明文，主要講述了面臨全球變暖，北極冰山融化速度變快，北極熊家園環(huán)境受到威脅。

【1】此題考察形容詞的比較級(jí)，much可修飾形容詞比較級(jí)。故填warmer。

【2】此題考察動(dòng)詞時(shí)態(tài)中的現(xiàn)在完成時(shí)，完成時(shí)態(tài)的構(gòu)成為have/has+done。故填prepared.

【3】此題考察定語(yǔ)從句。這句話的意思是“但是這些熊對(duì)威脅他們所知道的唯一居所沒有任何準(zhǔn)備”定語(yǔ)從句的先行詞為danger,從句“___3___threatens the only home they know.”中缺主語(yǔ)。故填that/which。

【4】The amount of +名詞做主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞應(yīng)用單數(shù)。故填has。

【5】Rely on 解釋為依靠，為固定搭配。故填on。

【6】“The sea ice is more___6___just this platform that the bears walk over,”這句話的意思為“海上冰塊不僅僅是北極熊行走的平臺(tái)” more than 為固定搭配，在這句話中解釋為不僅僅。故填than。

【7】Andrew Derocher第一次出現(xiàn).故填不定冠詞a。

【8】根據(jù)句意，這句話的意思為“沒有海上冰塊，北極熊不能生存�！惫侍顆ithout.

【9】此處考察have sth to do的用法，應(yīng)用動(dòng)詞不定式充當(dāng)定語(yǔ)。故填to hunt。

【10】修飾動(dòng)詞hunt,應(yīng)用active的副詞形式。故填actively。