重点词汇:1. extinct, extinction
1.It is estimated that, currently, about50,000 species become_____ every year.
A. extinct
B. instinct
C. distinct
D. intense
选项解析:
A. extinct灭绝的
B. instinct本能
C. distinct清楚的,截然不同的
D. intense 强烈的
正确答案:A
译文:目前,据估计,每年大约有5万种物种灭绝了。
Certain species disappeared or became ______________ as new forms arose that were better adapted to the Earth's changing environment.(CET6-99年6月第40题)
A.feeble
B.extinct
C.massive
D.extinguished
选项解析:
A.feeble无力,虚弱的
B.extinct灭绝的,绝种的
C.massive大量的,大规模的
D.extinguished被熄灭的,被消灭的
正确答案:B
译文:某些物种消失了或灭绝了,但新的生命形式又出现了,它们能更好地适应地球环境的不断变化。
If nothing is done to protect the environment, millions of species that are alive today will have become _______________. (CET6-01年1月第40题)
A.deteriorated
B.degenerated
C.suppressed
D.extinct
选项解析:
A.deteriorated 恶化的
B.degenerated 堕落的
C.suppressed压抑的
D.extinct 灭绝的
正确答案:D
译文:如果不采取措施保护环境,数百万活着的物种就会灭绝。
The panda is an endangered species, which means that it is very likely to become ______ without adequate protection. (CET6-06年6月第70题)
A.intact
B.insane
C.extinct
D.exempt
选项解析:
A.intact:完好无缺的,完整的
B.insane:患精神病的,愚蠢的
C.extinct:灭绝的,熄灭的
D.exempt:免除,豁免
正确答案:C
译文:熊猫是濒危物种,这意味着如果缺乏充足的保护它很有可能灭绝。
5.Sadly, the Giant Panda is one of the many species now in danger of ____________.(CET6-00年1月第70题)
A.extinction
B.migration
C.destruction
D.extraction
选项解析:
A.extinction 灭绝
B.migration 迁居,迁徙
C.destruction破坏,毁灭
D.extraction 抽出,血统,家世
正确答案:A
译文:遗憾地是,大熊猫是当前濒临灭绝的许多物种之一。