题目内容
1.While global warming and ocean acidification driven by pollution cause a real threat to sea creatures,climate change is not the primary driver threatening to cause the extinction(灭绝)of large ocean animals.It is humans that are threatening large sea creatures primarily by hunting and fishing them.Researchers findings reflect a phenomenon experienced by ancient land ecosystems(生态系统).These losses in the ocean are paralleling what humans did to land animals sonic 50,000 to 10,000 years ago.when we wiped out around half of the big-bodied mammals on Earth,like mammoths,mastodons.saber-tooth cats and the like.
The increasing threat to large groups of sea animals is a recent phenomenon.The researchers made this discovery by comparing characteristics of nearly 2,500 extinct sea vertebrates and mollusks alongside others currently in danger of extinction.They found that smaller sea animals were a little more likely than large ones to be killed off during five previous mass extinction events-the most recent of which was associated with a small planet's strike some 65 million years ago.
What was surprising to the reseachere was that they did not see a similar kind of pattern in any of the previous mass extinction events that they studied.
The study shows that a sixth mass extinction,which may already be underway could kill off larger-bodied animals while leaving smaller ones behind.That could have a terrible long-term impact.
Such removal of the largest animals from the modern oceans,which never happened in the history of animal life,may disturb the order of ecosystems for millions of years even at levels of taxonomic loss far below those of previous mass extinctions.
This news should serve as ii wake-up call for humans to fundamentally change the way they manage the oceans.That is to say,it is a warning of what will happen if we don't get our act together.
Limiting industrialization of the oceans may be necessary to give threatened animals time and space to recover.Most whaling has been banned since the 1980s.We have brought gray whales back from the edge of extinction and blue whales are coming back too.
The researchers point out that cutting back on carbon emissions(排放)will also be necessary lo slow extinctions.
58.Pantgraph 2 is intended to tell us thatA.
A.both land animals and sea animals die out because of humans
B.big-bodied animals were killedas they were threattohumans
C.humans tended to kill animalson land instead of thoseinseas
D.humans have been main killers of animals for a very long time
59.What can we learn from the researcher's,studies about animal extinction?B
A.It is easier for sea creatures to go extinct than land ones.
B.The patterns of sea animal mass extinction are irregular.
C.Humans were responsible for all those extinctions.
D.Small-bodied creatucs produce I heir young more easily,
60.Which does the passage suggest is the most important in stopping sea animal extinction?D
A.To completely ban people from hunting them.
B.To fully realize the urgency ofprotecting them.
C.To unconditionally release kssCO2 into the air.
D.To reasonably keep control ofthe trade in them.
分析 本文主要讲述了各种原因尤其是人类活动对海洋生物造成的毁灭性影响,以及相应的提出了一些补救措施.
解答 58.A细节题.根据文章内容,These losses in the ocean are paralleling what humans did to land animals sonic 50,000 to 10,000 years ago.when we wiped out around half of the big-bodied mammals on Earth,like mammoths,mastodons.saber-tooth cats and the like.当人类将地球上的长毛象、乳齿象等大型动物杀害的时候,海洋生物也一并受到了影响,结合选项,故选A
59.B 细节题.根据文章内容,What was surprising to the reseachere was that they did not see a similar kind of pattern in any of the previous mass extinction events that they studied.研究结果让人感到惊讶的是,海洋生物大规模的灭亡方式是不规律的,结合选项,故选B
60.D 细节题.根据文章内容,While global warming and ocean acidification driven by pollution cause a real threat to sea creatures,climate change is not the primary driver threatening to cause the extinction(灭绝)of large ocean animals.It is humans that are threatening large sea creatures primarily by hunting and fishing them.全球变暖以及海水酸化引起了对海洋生物的威胁;,气候变化也不是海洋生物死亡的主要原因,最大的威胁是人类对他们的捕杀以及无节制垂钓.答案在A\D中选择,而A选项表示完全禁止捕杀,那是不大可能的,只有D选项合理,
点评 本文是一个新闻报道类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.
