题目内容
【题目】阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
More than 70 percent of king penguins could 【1】 (wipe) out by rising ocean temperatures, according to a recent survey.
Their total population of 1.6 million today could be reduced by more than 1.1 million by 2100.【2】, many people are optimistic because these statistics show that the birds are not endangered at present. Rated as 'of least concern', they occupy the lowest category of extinction risk.
But that could change as their fish 【3】 (supply) move further into the Southern Ocean, where there is only a 【4】 (hand) of islands to provide a home for the birds.
King penguins require remote islands 【5】 are not too cold, have no winter sea ice and no fierce animals. If they have to swim more than 435 miles on 【6】 round trip to hunt for fish, their waiting children can starve to death as their fat reserves become steadily 【7】 (few). It can take a parent three months 【8】 (deliver) fish to its young.
The scientists, from the University of Strasbourg in France, whose study 【9】 (publish) in the journal Nature Climate Change so far, warn that the effects of fish population moving further south could give rise 【10】 a large population crash of the penguins.
【答案】
【1】be wiped
【2】However
【3】supplies
【4】handful
【5】that/which
【6】a
【7】fewer
【8】to deliver
【9】has been published
【10】to
【解析】
这是一篇说明文。根据最近的一项调查,超过70%的帝企鹅可能被上升的海洋温度消灭。随着它们赖以生存的鱼类供应进一步进入南大洋,情况可能会发生变化。鱼类种群向南迁徙的影响可能导致企鹅种群大量减少。
【1】考查被动语态。分析句子可知,设空处和could一起构成句子谓语动词,主语king penguins和wipe out之间是被动关系,应用被动语态,又情态动词could后要用动词原形,故填be wiped。
【2】考查副词。句意:然而,很多人都很乐观,因为这些统计数据显示这些企鹅目前还没有濒临灭绝,根据句意可知,上下文是转折关系,故填However。
【3】考查名词的数。分析句子可知,此处应用名词作为句子主语,因为句子为一般现在时,故由谓语动词move判断主语是复数形式,fish supplies“鱼类供给”,故填supplies。
【4】考查名词。句意:但这种情况可能会改变,因为它们的鱼类供应进一步进入南大洋,那里只有少数几个岛屿可以为鸟类提供栖息地。此处考查固定表达a handful of“少数”,handful“一把(的量)”,故填handful。
【5】考查定语从句。分析句子可知,此处是定语从句关系词,先行词islands在从句中充当主语,应用关系代词,故填that/ which。
【6】考查冠词。句意:如果它们寻找鱼类时,一个往返不得不游上超过435英里,它们等待食物的幼鸟就会饿死,因为它们的脂肪储存会变得越来越少。trip是可数名词,结合上下文可知,此处意为“一次往返(的旅行)”,是泛指,应用不定冠词,且round是辅音音素开头,故填a。
【7】考查形容词。分析句子可知,此处应用形容词作为表语,再结合句意可知,此处意为“越来越少”,应用比较级,故填fewer。
【8】考查固定句型。此处考查固定句型it take sb some time to do sth.“做某事花费某人多少时间”,其中it是形式主语,不定式是真正的主语,故填to deliver。
【9】考查时态和语态。分析句子可知,此处是定语从句的谓语动词,主语study和publish之间是被动关系,再由so far判断为现在完成时,故应用现在完成时的被动语态,主语study是第三人称单数,故填has been published。
【10】考查介词。句意:法国斯特拉斯堡大学的科学家们的研究已经发表在《自然气候变化》杂志上,他们警告说,鱼类向南迁徙的影响可能会导致企鹅的大量减少。此处考查固定短语give rise to“引起,导致”,故填to。