首页
登录
职称英语
Half of the world’s coral reefs(珊瑚礁) have died in the last 30 years. Now sci
Half of the world’s coral reefs(珊瑚礁) have died in the last 30 years. Now sci
游客
2025-03-03
19
管理
问题
Half of the world’s coral reefs(珊瑚礁) have died in the last 30 years. Now scientists are racing to ensure that the rest survive. Even if global warming were to stop right now, scientists predict that more than 90% of corals will die by 2050. If no major steps are taken to address the problem, the reefs may be headed for total extinction(灭绝).
(78)
The planet’s health depends on the survival of coral reefs.
They are often described as "the rainforests of the sea" , because they provide shelter for a wide variety of sea life. In addition, the reefs serve as barriers that protect coastlines from the full force of powerful storms.
Coral are used in medical research for cures to diseases. They are key to local economies as well, since the reefs attract tourists, the fishing industry, and other businesses, bringing in billions of dollars.
(79)
Corals are particularly sensitive to changes in temperature.
A rise of just 1 to 2 degrees can force the corals to drive out the algae (水藻). Then the corals turn white in a process called "bleaching". Corals can recover from short-term bleaching, but long-term bleaching can cause permanent damage. In 1998, when sea surface temperatures were the highest in recorded history, coral reefs around the world suffered the most severe bleaching. It is estimated that even under the best of conditions, many of these coral reefs will need decades to recover.
Although reefs face other threats from pollution, industrial activities, and overfishing, it is global climate change that most concerns scientists. Scientists remain hopeful that it’s not too late to save the reefs, and some are moving ahead on experiments to accomplish that goal. [br] Why are coral reefs called "the rainforests of the sea"?
选项
A、Because they are home to a wide variety of sea life.
B、Because they can protect our coasts from storms.
C、Because they might supply natural medicines.
D、Because they look like rainforests.
答案
A
解析
细节题。题干问的是“为什么将珊瑚礁称为‘海洋的热带雨林’?”根据定位句“珊瑚礁被誉为‘海洋的热带雨林’,因为它们为海洋生物提供了天然的保护屏障。”可知珊瑚礁对于海洋的作用主要体现在保护海洋生物的方面。虽然在文中提及了B项,但是,并不能体现珊瑚礁享有“海洋的热带雨林”称号的原因。故选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3980487.html
相关试题推荐
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nows
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nows
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nows
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nowsci
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nowsci
Coralsareparticularlysensitivetochangesintemperature.珊瑚礁对温度的变化特别敏感。
Heisworkingveryhardto______thelosttimeinthepast10years.A、makeforB、
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nowsc
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nowsc
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nowsc
随机试题
Treesarethenatural________ofbirdsandinsects.A、habituationB、habitantC、h
Ithasbeenmorethansixmonthssincewehadtheopportunitytoserviceyourca
Executivecoachingisprimarilyconcernedwithconfidentialone-to-onediscu
TheTajMahalistoopenonmoonlitevenings20yearsaftersecurityfearse
关于企业价值评估中市场法操作的有关说法,错误的是()。A.计算价值比率应当
工程变更的索赔有效期,由合同具体规定,一般为28天,也有14天的。一般这个时间越
2016年“一带一路”沿线64个国家GDP之和约为12.0万亿美元,占全球GDP
下列有关醛固酮的叙述,哪项是正确的? A.由肾上腺皮质束状带分泌的一种激素
婴幼儿腹泻最常见的病原是A.柯萨奇病毒 B.埃可病毒 C.轮状病毒 D.腺
检验批的质量验收分为主控项目和一般项目,下列属于一般项目包括的主要内容的是(
最新回复
(
0
)