首页
登录
职称英语
[originaltext] Scientists say a huge percentage of bird species are in dange
[originaltext] Scientists say a huge percentage of bird species are in dange
游客
2024-04-11
30
管理
问题
Scientists say a huge percentage of bird species are in danger because their habitats, or homelands, are disappearing. Traditional migration paths take birds through countries that are not protecting locations to stop, rest and feed. The scientists studied the migration, or flight paths, of almost 1,500 species. They decided that 91 percent of them passed through dangerous areas. The major danger for migratory birds is development. Building and paving has covered over nature where birds stop and feed as they move from one part of the world to another. For example, a bird migrates from its breeding grounds in the Arctic. It flies all the way to the southern hemisphere in Australia and New Zealand. Along the way, the small birds stop at Yellow Sea coast in China, North Korea and South Korea. One of the scientists who worked on the study says "many of these critical sites have been lost owing to urban, industrial and agricultural expansion."
The problem, according to investigators, is that many of these small birds die along their migration because they don’t have a safe place to eat and rest. There is no place to restore their energy for the next leg of their journey. "They simply perish along the way," says one of the scientists. Countries in North Africa, Central Asia and those along the coasts of East Asia are having the most difficult time conserving land. The scientists say these countries do not have enough areas that are safe for birds. In addition, many of the reserves do not overlap enough with the paths of migrating birds. One species that is now extinct is the Eskimo bird. "Our world gets poorer every time we lose a species," one of the scientists says. The researchers say countries need to work together and come up with safe stopover areas for birds that pass through their boundaries. For example, one country might have preserved safe zones for migrating birds. But a neighbor country might not. A bird might perish. One scientist who is not involved in the report tells the Los Angeles Times that while some habitats are changing, more work can be done to make urban areas safe for birds. He says small changes—like planting more native plants or keeping cats out of areas birds would be likely to use—could make a big difference.
19. What threatens migratory birds most?
20. What does the scientist say about the critical sites?
21. What do countries have to do to protect birds?
22. What can be done to make urban areas safe for birds?
选项
A、Mankind’s economic development.
B、Hunters and other animals.
C、Climate change and air pollution.
D、The length of migration path.
答案
A
解析
录音中明确指出,对候鸟的最主要威胁(major danger)是发展(development),下面具体提到“发展”是指高楼大厦和道路的建设,A项所说的“经济发展”符合录音所述。B项“猎人和其他动物”和C项“气候变化和空气污染”都未在录音中提及。D项“迁徙的距离”不是构成威胁的原因,只是因为鸟类在迁徙过程中找不到停留点才对它们造成威胁。
转载请注明原文地址:https://tihaiku.com/zcyy/3551030.html
相关试题推荐
[originaltext]Today,I’mgoingtotalkaboutthehealthproblemsrelatedto
[originaltext]Today,I’mgoingtotalkaboutthehealthproblemsrelatedto
[originaltext]Theterm"Americandream"iswidelyusedtoday.Butwhatexac
[originaltext]Psychologistshavemanytheoriestoexplainhowwerememberi
[originaltext]Psychologistshavemanytheoriestoexplainhowwerememberi
[originaltext]Kuwaitisacountrywhichisquitesmall,butwhichisveryr
[originaltext]Kuwaitisacountrywhichisquitesmall,butwhichisveryr
[originaltext]Mostdoctorshavelongbelievedthatreducingsaltcandecrea
[originaltext]M:Interestinglecturetoday,didn’tyouthink?W:Well,Isuppos
[originaltext]M:Interestinglecturetoday,didn’tyouthink?W:Well,Isuppos
随机试题
Americansocietyisnotnap(午睡)friendly.Infact,saysDavidDinges,asle
JennyandPaulagreetheyneeda___________________fortheproject.timetable
被人们称为“法兰西的莎士比亚”的作家是()A.萨缪尔·贝克特 B.皮埃尔·高乃
在脊柱骨折中,胸腰段脊柱骨折最常见。()
下列各项中,不属于劳务分包合同中承包人义务的是( )。A.编制施工组织设计
治疗麻疹逆证邪毒闭肺的治法是()A.宣肺开闭,清热解毒 B.清热解毒,利
将人体实验分为临床性与非临床性研究并提出不同道德原则的医德文献是A.“悉尼宣言”
对借款人来说,第一年初借款1000元,第三年末还款1200元,那么用现金流量图可
“肺主一身之气”的含义是( )。A.推动气血运行 B.呼出体内浊气 C.生
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
最新回复
(
0
)