首页
登录
职称英语
Rescue workers had collected 820 birds from the Gulf of Mexico oil spill, th
Rescue workers had collected 820 birds from the Gulf of Mexico oil spill, th
游客
2023-08-05
32
管理
问题
Rescue workers had collected 820 birds from the Gulf of Mexico oil spill, the majority of them already dead. The current spill promises to be the largest in US history, and as cleanup efforts stretch across the summer, it’s clear that more oiled birds will be found, stuck and suffering in the black sticky liquid. And as they do with every oil spill, rescue workers will go to great lengths to capture and clean the survivors hoping to restore them to their natural habitat.
Is it worth the effort? Some scientists aren’t so sure. Because the stress of being captured and bathed is as significant as the horror of being immersed in oil, and because research suggests that many rescued birds die shortly after being released, some experts say euthanasia (安乐死) is a more humane option.
Clean bird feathers repel water and regulate body temperature—dirty ones don’t. Oil in particular makes feathers heavier and diminishes their ability to trap air, which in turn makes birds more vulnerable to drowning, overheating and organ damage. Of course, being captured and cleaned is no picnic either. Some birds wind up returning to their destroyed habitats only to fall victim to the oil again. And those who manage to avoid a second oil bath suffer dramatically shortened life spans and lower reproductive success. Of the thousands of birds that were rescued from the Prestige oil spill off the coast of Spain in 2002, only 600 were released into the wild; most of the rest died after just a few days in captivity.
However, bird rescuers say they have learned a lot about how to best help oil-soaked birds, and that therefore, survival rates stand to increase this time around. In the past, birds were cleaned right away, and volunteers often worked through the night bathing rescued birds. But now, captured birds are left to rest for a day or two before being cleaned, and only washed during the day, so as not to disrupt their circadian (生理的) rhythms. But part of that increase may be due to greater selectivity on the part of rescuers. The workers do blood tests right in the field now and birds that are loaded with hydrocarbons (碳氢化合物) or don’t look like they’re going to make it are put down right away, rather than subjected to the stress of captivity and cleaning.
And so far, while release rates may be improving, there is little evidence of better medium or long-term survival, especially for the more-difficult-to-save species. There still aren’t good biomedical protocols (协议) for repairing the internal organ damage. Nevertheless, rescue efforts will continue, in large part because the public demands that. Euthanasia is a difficult thing to do, especially for people who have built their lives around saving animals. [br] The case of Spain coast spill is applied to indicate________.
选项
A、thousands of birds were polluted by oil
B、the survival rate of oiled birds was very low
C、the efforts to rescue oiled birds were ineffective
D、captivity is an impractical method to rescue birds
答案
B
解析
根据题干中的Spain coast spill定位到原文第三段末句。推理判断题。在列举西班牙石油泄漏事故之前,文章讲述了油污鸟可能面临的遭遇,并指出清洗并非一劳永逸,它们随时面临死亡。紧接着定位句指出,在2002年西班牙海岸的邮轮泄漏事故中,数以千计的鸟类被救援,但只有600只被放回了大自然;其他大多数在被捉后没几天就死了。因此,B)“油污鸟的存活率很低”为本题答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2898926.html
相关试题推荐
A、Workers’longworkinghours.B、Workers’poorworkingconditions.C、Thelowrat
Likemanyworkers,IvelisseRivera,aphysicianatCommunityHealthCenter,
Likemanyworkers,IvelisseRivera,aphysicianatCommunityHealthCenter,
Likemanyworkers,IvelisseRivera,aphysicianatCommunityHealthCenter,
Rescueworkershadcollected820birdsfromtheGulfofMexicooilspill,th
Rescueworkershadcollected820birdsfromtheGulfofMexicooilspill,th
Rescueworkershadcollected820birdsfromtheGulfofMexicooilspill,th
Likemanyworkers,IvelisseRivera,aphysicianatCommunityHealthCenter,
Likemanyworkers,IvelisseRivera,aphysicianatCommunityHealthCenter,
Likemanyworkers,IvelisseRivera,aphysicianatCommunityHealthCenter,
随机试题
Whatpersonalqualitiesaredesirableinateacher?Probablynotwopeoplew
Theabilitytostoreknowledgemakescomputersdifferentfromeveryothermachin
[originaltext]Mostpeoplearetooanxiousduringtests.Suchanxietymakesthem
某信息系统网络工程建设内容包括网络系统和存储备份系统的采购、安装和调试等工作。监
与细菌细胞壁黏肽侧链形成复合物,阻碍细菌细胞壁合成的药物是A:青霉素G B:红
站用直流系统中,每台充电装置两路交流输入(分别来自不同站用电源)互为备用,当运行
______wehavefinishedthecourse,wesh
一般而言,下列关于股票和债券特征的表述中,错误的是( )。A.股票的期限是不确
吩噻嗪类抗精神病药中毒的临床表现是A.心血管毒性 B.肌肉震颤、抽搐 C.谵
根据《中华人民共和国反垄断法》,垄断行为包括()。A.诋毁商誉行为 B.经营
最新回复
(
0
)