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 migrate to the Arctic Circle during the summer. B、They originate from Devon Island in the Arctic area. C、They travel as f
A、They migrate to the Arctic Circle during the summer. B、They originate from Devon Island in the Arctic area. C、They travel as f
admin
2017-01-20
52
问题
Birds are famous for carrying things around. Some, like homing pigeons, can be trained to deliver messages and packages. Other birds unknowingly carry seeds that cling to them for the ride.(9)Canadian scientists have found a worrisome, new example of the power that birds have to spread stuff around. Way up north in the Canadian Arctic, seabirds are picking up dangerous chemicals in the ocean and delivering them to ponds near where the birds live.
Some 10,000 pairs of the birds, called fulmars, a kind of Arctic seabird, make their nests on Devon Island, north of the Arctic Circle.(10)The fulmars travel some 400 kilometers over the sea to find food. When they return home, their droppings end up all around their nesting sites, including in nearby ponds.
(11)Previously, scientists noticed pollutants arriving in the Arctic with the wind. Salmon also carry dangerous chemicals as the fish migrate between rivers and the sea. The bodies of fish and other meat-eaters can build up high levels of the chemicals.
To test the polluting power of fulmars, researchers collected samples of deposit from 11 ponds on Devon Island. In ponds closest to the colony, the results showed there were far more pollutants than in ponds less affected by the birds. The pollutants in the ponds appear to come from fish that fulmars eat when they’re out on the ocean.(12)People who live, hunt, or fish near bird colonies need to be careful, the researchers say. The birds don’t mean to cause harm, but the chemicals they carry can cause major problems.
Questions 9 to 12 are based on the passage you have just heard.
9. What have Canadian scientists found about some seabirds?
10. What does the speaker say about the seabirds called fulmars?
11. What did scientists previously notice about pollutants in the Arctic?
12. What does the speaker warn about at the end of the talk?
选项
A、They migrate to the Arctic Circle during the summer.
B、They originate from Devon Island in the Arctic area.
C、They travel as far as 400 kilometers in search of food.
D、They have the ability to survive in extreme weathers.
答案
C
解析
短文中提到,管鼻藿(fulmar)这种海鸟在海上飞行大约400公里去觅食,故答案为C)。
转载请注明原文地址:https://kaotiyun.com/show/vgF7777K
0
大学英语六级
相关试题推荐
Alzheimer’sdisease(老年痴呆症)ismostlyaconditionofoldage.Sincelife【B1】_____isgettinglongeraroundtheworld,thenumberof
A、Onemonthpaidvacation.B、Payraiseafterayear.C、Chancesofpromotion.D、Reasonabletraining.C事实细节题。本题问的是网络托管公司有什么福利。对话中,
Overtheyears,relaxationtraininghasbeenrecommendedtopatientswithvariousstress-relateddisorderssuchaschronicpain
A、Note-takingonpaperisbetterforconceptualunderstanding.B、Note-takingonpaperenablesstudentstowriteeverything.C、No
A、Africa.B、Europe.C、Australia.D、Mexico.A事实细节题。本题问的是在这个项目中女士要去哪里。对话中男士问女士是否认为这个项目会使她感受到文化冲击,女士回答她从没有去过非洲,出现文化冲击也是必然的。由此可知,该项目
Inthe1980s,homeschoolingmadeacomebackintheU.S.whenreligiouslyconservativeparentsconvincedstatestoapproveandgi
Nursing,asatypicallyfemaleprofession,mustdealconstantlywiththefalseimpressionthatnursesaretheretowaitonthep
中国的快递业(expressdeliveryindustry)经过30多年的发展,已经形成了一个规模庞大的产业。据统计,中国的快递企业已达到了5000余家,员工人数达30万人。现在,中国东部地区已经形成了以沿海大城市为中心的快运速递圈。快递服务呈现多元
MarieCuriewasthefirstfemaleprofessoratSevres,acollegeforgirlswhowantedtoteachhighereducation.Thesetwenty-yea
A、Inboilinghotwater.B、Inslightlyhotwater.C、Inroomtemperaturewater.D、Inicycoldwater.C
随机试题
属于控制基本过程的关键是
各证型郁证共同的病理基础是
化学结构如下的药物是
直方图程序包括()。
某工程项目施工采用《水利水电工程标准施工招标文件》(2009年版),招标文件工期为15个月。承包方投标所报工期为13个月。合同总价确定为8000万元。合同约定:实际完成工程量超过估计工程量25%以上时允许调整单价;拖延工期每天赔偿金为合同总价的1‰,最高拖
1.背景某小学工程的计划进度和实际进度如下表所示,表中粗实线表示计划进度(进度线上方的数据为每周计划完成工作预算成本),粗虚线表示实际进度(进度线上方的数据为每周实际发生成本),假定各分项工程每周计划完成总工程量和实际完成总工程量相等,且进度均匀进展。
可以通过行政法规形式设定除限制人身自由以外的税务行政处罚的机构是()。
一般资料:求助者,女性,48岁,某公司副经理。下面是心理咨询师与求助者的一段咨询对话:心理咨询师:您好!您希望在哪些方面得到我的帮助呢?求助者:我最近一段时间经常莫名其妙地紧张和担忧,在单位有时还控制不住自己的情绪对下属发脾气。心理咨询师:这种情况大概持续
A=ColtB=LancerC=GrandisD=OutlanderWhichcar(s)….isforthosewhowantbothlooksandperformance?
WelcomeaboardDragonairAirlinesFlight121HongKongtoParis.Ourflightwilltakeaboutthreehours.Wewillbeflyingata
最新回复
(
0
)