One of the most pressing challenges the world will face in the next few decades is how to alleviate the growing stress that huma

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问题     One of the most pressing challenges the world will face in the next few decades is how to alleviate the growing stress that human activities are placing【C1】________the environment. The consequences are just too great to【C2】________. Wildlife habitats are being degraded or disappearing altogether as new developments【C3】________more land. Plant and animal species are becoming【C4】________at a greater rate now than at any time in Earth’s history.【C5】________many as 30 percent of the world’s fish stocks are over-exploited. And the list goes on.
    【C6】________, there is reason to have hope for the future. Advances in computing power and molecular biology are among the tremendous increases in scientific capability that【C7】________helping researchers【C8】________a better understanding of these problems. Recent development in science and technology could provide the【C9】________for some major and timely actions that would【C10】________our understanding of how human activities affect the environment.
    One priority for research is improving hydrological forecasting. It has been【C11】________that the world’s water use would triple in the next two decades. Already, widespread water【C12】________have occurred in parts of China, India, and North Africa. The need for water also is taking its toll on fresh water ecosystems in the United States. Only 2 percent of the nations’ stream are considered in good【C13】________, and【C14】________to 40 percent of native fish species are rare to extinct.
    To prevent outbreaks of【C15】________diseases in plants, animals and human, more study is needed on how parasites and disease-carrying species—as【C16】________as humans and other species they【C17】________—are affected by changes in the environment. The overuse of antibiotics both in humans and in farm animals has【C18】________to the growth of antibiotic-resistant micro organism. Researchers can take【C19】________of new technologies in genetics and computing to better monitor and【C20】________the effects that environment changes might have on diseases outbreaks.
【C3】

选项 A、take over
B、take off
C、take down
D、take on

答案A

解析 本题考查动词词组,等同于考动词。首先定位本填空的主语为:new developments(新的发展),宾语为:more land(更多的土地);根据这些线索应该不难定位出本填空动词所应表达的意思大概为“占据、侵占”。再定位四个选项的具体意思为:选项A)take over(接管,接收)、B)take off(取走,拿走,飞机起飞等)、C)take down(拿下,卸下,降下)、D)take on(承接,承担);考虑到原文全句的信息为:Wildlife habitats are being degraded or disappearing altogether as new developments  ________  more land.通过提示线索as揭示出前后句子实际为因果关系,即本填空后面句子为前面的原因,而前面讲述的为“野生动物在减少和消亡”,所以本填空的宾语land实际上是由Wildlife habitats占据的,人类的发展后来占据了这些land,这个过程就是由“接管、接收”而引申为“占据”,所以符合此意思的选项为A)take over(接管,接收)。
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