首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Mankind’s economic development. B、Hunters and other animals. C、Climate change and air pollution. D、The length of migration pat
A、Mankind’s economic development. B、Hunters and other animals. C、Climate change and air pollution. D、The length of migration pat
admin
2021-11-26
80
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. [19] 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. [20] 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. [21] 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. [22] 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://kaotiyun.com/show/vHx7777K
0
大学英语六级
相关试题推荐
A、Magazinereporter.B、Fashiondesigner.C、Websitedesigner.D、Featureseditor.D事实细节题。对话一开始,男士就非常明确地介绍了女士的职业,说她是一名时尚杂志的专栏编辑。
A、Thestabilizationofthedollarvalue.B、Theissuingofgovernmentsecurities.C、AgoldstandardforAmericancurrency.D、Ast
SlowHopeA)Ourworldisfullof—mostlyuntold—storiesofslowhope,drivenbytheideathatchangeispossible.Theyare’s
ImaginethatanalienspecieslandedonEarthand,throughtheirmerepresence,thosealienscausedourarttovanish,ourmusic
Forthispart,youareallowed30minutestowriteanessayonthesayingWhatisworthdoingisworthdoingwell.Youshouldwr
A、Lookattheslidesofthemodernloghouses.B、Seesomepicturesofthemountainretreats.C、Listentothepresentationofthe
在数字阅读的强力冲击下,传统图书出版市场近年来一直不太景气,但在低迷的市场中却有一匹“黑马”——儿童出版市场。在图书零售业(bookretailindustry)总体走低的大背景下,儿童出版市场保持着逆市上扬的趋势,已成为拉动市场的领跑板块。随着国
ThePopularityofMicro-blog1.近年来,微博用户人数逐年增加2.分析微博流行的原因3.我的看法
A、Adirectorofasalesdepartment.B、Amanageratacomputerstore.C、Asalesclerkatashoppingcenter.D、Anaccountantofa
A、Diplomasarelessimportantthanexperience.B、Collegecoursesarenotallnecessary.C、Youshouldfocusondoingwhatyoulik
随机试题
与股票筹资方式相比,银行借款筹资的优点不包括()。
新西兰的()是世界著名的“探险之都”。
中央银行参加金融市场的目的有()。
在同样的反应条件和要求下,为了更加经济地选择反应釜,通常选择()。
下列关于平静呼吸的描述,错误的是
下列不属于生物矿化机制的是
幼儿园环境按其性质可分为物质环境和()两大类。
秘密工作与公开工作是相辅相成的。公开工作需要秘密工作进行掩护,公开工作寓于秘密工作之中;秘密工作需要公开工作做后盾,并为公开工作创造条件。()
组织的领导者应该学会“弹钢琴”,这种说法指的是领导者要全面地看问题。()
尽管政府在减少青少年抽烟上做了很多努力,譬如,通过立法使抽烟变得更加昂贵,但是我很遗憾地说,吸烟的情况并未减少。
最新回复
(
0
)