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、They are lost due to modern society’s expansion. B、Birds are resting on them during migration. C、Further study is needed to in
A、They are lost due to modern society’s expansion. B、Birds are resting on them during migration. C、Further study is needed to in
admin
2021-07-23
68
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.[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、They are lost due to modern society’s expansion.
B、Birds are resting on them during migration.
C、Further study is needed to investigate them.
D、We must protect them for the birds.
答案
A
解析
科学家指出,鸟类栖息的关键地点消失了,这是由于城市、工业和农业的扩张(urban,industrial and agricultural expansion),A项“由于现代社会的扩张”是对录音内容的概括,为正确答案。B项“鸟类在这些地点上落脚休息”属于原本事实,并非科学家提出的观点。C项“需要对这些地点进行进一步的研究”未在录音中提到。D项“我们必须为鸟类保护这些地点”答非所问,并不是科学家提出的言论。
转载请注明原文地址:https://kaotiyun.com/show/VaJ7777K
0
大学英语六级
相关试题推荐
“共享经济”(sharingeconomy)也叫作“协同消费”,在金融和经济危机中被普遍接受并广泛传播。这种利用互联网降低交易成本、提高效率、减少资源浪费的模式是一种可持续发展的经济。共享经济以实现社会资源最优配置为核心目标,是改善不平衡不充分发展的重要
A、Sheisatouristguide.B、Sheisaninterpreter.C、Sheisadomesticservant.D、Sheisfromtheroyalfamily.A
A、Checkoutthelatestpricereductiononline.B、Lookroundforitemsinthephysicalstores.C、Ordertheproductsfromtheonli
A、Freedom.B、Travelswiftly.C、Travelunsafely.D、Displaypersonalwealth.C
A、Itispartoftheirlocalheritage.B、Itisanattractionoftourists.C、Itistherevivalofmorals.D、ItisthemiracleofG
A、Becausetheproductisoutofstock.B、Becauseitwilltakemonthstoarrive.C、Becausethefoodhasn’tbeenproducedyet.D、B
A、Totestthestrengthofafriendship.B、Tobringfriendsevencloser.C、Toknowmorepeoplewhoareinneed.D、Tomakeyourfr
A、Hetookadvantageofhislargecircleoffriends.B、Heattemptedallsortsofadventuresworldwide.C、Hecombinedfantasticma
PatientsStruckoffbyGPsA)ThousandsofpatientsarebeingarbitrarilystruckoffbyGPs(普通开业医生)whosaytheycannolongercop
Forthispart,youareallowed30minutestowriteashortessayentitledOnVolunteerActivities.Youshouldwriteatleast150
随机试题
微分方程的通解为
学生,19岁。右股骨下端疼痛1个月,夜间尤甚。查体:右股骨下端偏内侧局限性隆起,皮温略高,皮肤浅静脉怒张,明显压痛,膝关节运动受限。x线片示股骨下端干骺端溶骨性骨破坏,边界不清,可见Codman三角。诊断为
实行()的优点是能够降低汇率波动的不确定性,政府货币当局便于管理。
建筑间距是指两幢建筑物之间,外墙面相距的距离。影响建筑间距确定的主要因素是()。
各旅行社、导游公司应在待遇方面对不同级别的导游员加以区别,拉开档次。()
在服务机构中,()是针对要接受临床服务的案主而做的。
要配制每100克含盐量17.5克的盐水7千克,需要食盐多少克?()
根据下列材料回答问题。2009年以来,在灾后恢复重建和扩大内需的各项政策措施的作用下,四川交通运输业投资呈现出快速增长的发展势头。1—4月,全省交通运输业投资255.74亿元,同比增长131.3%,增速较同期全社会投资快52.4个百分点,迎来了高
设计制作一个多媒体地图导航系统,使其能根据用户需求缩放地图并自动搜索路径,最适合的地图数据应该是(14)。
AResponsibilityRevolution"Wehavealwaysknownthatheedlessself-interestwasbadmorals,"FDRsaidin1937,inthemids
最新回复
(
0
)