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 s
Half of the world’ s coral reefs (珊瑚礁) have died in the last 30 years. Now s
游客
2025-03-03
12
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.
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.
Corals 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.
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] The corals turn ______in the process of "bleaching".
选项
A、red
B、black
C、green
D、white
答案
D
解析
细节题。定位到文章第四段第三句“Then the corals turn white in a process called‘bleaching’.”据此可知,珊瑚礁会在一个被称为“漂白”的过程中,逐渐变成白色,故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3981278.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.Nowsci
我学习英语大概有十年了。IhavebeenlearningEnglishforabout10years.
Coralsareparticularlysensitivetochangesintemperature.珊瑚礁对温度的变化特别敏感。
Later,Charleswentbacktoschoolfortwomoreyears.之后,狄更斯又返回学校就读了两年。
Bytheendofnextmonth,you______hereforthreeyears.A、willhavestudiedB、st
Heisworkingveryhardto______thelosttimeinthepast10years.A、makeforB、
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nowsc
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nowsc
随机试题
ThespectacularaurorallightdisplaysthatappearinEarth’satmospherearou
Industrialsafetydoesnotjusthappen.Companies【C1】______lowaccidentrat
Grandfatherhadsustainedabrokenbackwhileworkinginthemines.______,hesp
Theterm“print”hasseveralmeanings,soitisimportanttounderstandexac
Directions:Forthispart,youareallowed30minutestowriteacompositionon
[originaltext]M:Holly,isitpossibletoborrowyournotes?I’llreturnthemt
下列()属于五大高危企业的范围。A.矿山企业 B.建筑施工企业 C.烟花爆
商业银行对于投资额大、技术复杂、按照项目进度分期付款的固定资产贷款项目,在借款人
下列行为,不属于操纵证券市场罪的是()。A: 单独或者通过合谋,集中资金优势
限额设计的关键是()。A.投资决策阶段 B.初步设计阶段 C.施工图设
最新回复
(
0
)