首页
登录
职称英语
Mass Strandings of Whales1. The tide goes out suddenly,
Mass Strandings of Whales1. The tide goes out suddenly,
游客
2023-10-23
36
管理
问题
Mass Strandings of Whales
1. The tide goes out suddenly,【T1】________ the whales 【T1】________
2. Mass strandings linked to parasites
a. Evidence: Stranded animals infested with many parasites
b. Example: Worms found in the ears of dead whales
Whales rely heavily on their hearing to【T2】________ 【T2】________
This type of infestation can be very harmful
3. Mass strandings related to toxins or poisons
Toxins【T3】________ from plants or animals 【T3】________
The whale ingests these toxins
Whether leading to stranding or not depends upon the toxin【T4】________ 【T4】________
4. Mass strandings caused by following their prey ashore
Example【T5】________ whales beached after following the squid ashore 【T5】________
Not true for most mass strandings
The animals’ stomach【T6】________ reveal most had not been feeding 【T6】________
5. Mass strandings linked to humans
A growing concern: loud【T7】________ made by humans cause strandings 【T7】________
Noises caused by【T8】________ are of particular concern 【T8】________
6. Mass strandings related to group【T9】________ 【T9】________
Whales follow【T10】________ leaders ashore 【T10】________ [br] 【T7】
”Mass Strandings of Whales
Good afternoon everyone. Well, with some of you will go out on fieldwork it’s timely that in this afternoon’s session I’ll be sharing some ideas about the reasons why groups of whales and dolphins sometimes swim ashore from the sea right onto the beach and, most often, die in what were known as "mass stranding". Unfortunately, this type of event is a frequent occurrence in some of the locations that you’ll be travelling to, [1]where sometimes the tide goes out suddenly, confusing the animals.
However, there are many other theories about the causes of mass strandings. The first is that the behavior is linked to parasites. It’s often found that stranded animals were infested with large numbers of parasites. For instance, a type of worm is commonly found in the ears of dead whales. [2]Since marine animals rely heavily on their hearing to navigate, this type of infestation has the potential to be very harmful. Another theory is related to toxins, or poisons. These have also been found to contribute to the death of many marine animals. [3]Many toxins, as I’m sure you’re aware, originate from plants, or animals. The whale ingests these toxins in its normal feeding behavior but [4]whether these poisons directly or indirectly lead to stranding and death, seems to depend upon the toxin involved. Alternatively, it has also been suggested that some animals stranded accidentally by following their prey ashore in the confusion of the chase. Last year, [5]David Thurston monitored pilot whales that beached after following the squid ashore. However, this idea does not seem to hold true for the majority of mass strandings [6]because examination of the animals’ stomach contents reveal that most had not been feeding as they stranded. There were also some new theories, which link strandings to humans. [7]A growing concern is that loud noises in the ocean cause strandings. [8] Noises such as these caused by military exercises are of particular concern and have been pinpointed as the cause of some strandings of late.
[9]A final theory is related to group behaviour, and suggests that sea mammals cannot distinguish between sick and healthy leaders and [10]will follow sick leaders, even to an inevitable death. This is a particularly interesting theory since the whales that are thought to be most social—the toothed whales—are the group that strand the most frequently. The theory is also supported by evidence from a dolphin stranding in 1994. Examination of the dead animals revealed that apart from the leader, all the others had been healthy at the time of their death.
Without one consistent theory however it is very hard for us to do anything about this phenomenon except to assist animals where and when we can. Stranding networks have been established around the world to aid in rescuing animals and collecting samples from those that could not be helped. I recommend John Connor’s Marine Mammals Ashore as an excellent starting point if you’re interested in finding out more about these networks, or establishing one yourself.
选项
答案
noises
解析
本题涉及“鲸鱼大规模搁浅与人有关”的理论。空格前的loud提示空格处应填入名词。录音提到,人们越来越关注的一个点是巨大的噪音造成大量鲸鱼搁浅,故空格处填入noises。
转载请注明原文地址:https://tihaiku.com/zcyy/3123754.html
相关试题推荐
Whichoftheitalicizedpartsfunctionsasasubject?A、Itsuddenlyoccurredtom
Hearingwewill______candies,thechildrensuddenlygatheraroundus.A、assignB
Thelittlegirl’sattentionwassuddenlycaughtbyaragdollwhich_______put
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
随机试题
Readthistexttakenfromanarticleabouthowtheaccountantsinfluencethedec
[originaltext]W:Dad,canIgotoamoviewithSharon?M:Yeah,sure,butwait.
以下()工作不适采用评审A.合同签订前期合同审核工作 B.建设单位的用户
在隧道空气相对静压的测定中,通常使用()测定空气相对静压。A.U形压差计
具有燥湿止带、消肿排脓功效的药物是()A.乌贼骨 B.白蔹 C.白
随着社会经济基础的变化,属于意识形态的道德也会发生相应变化。这是道德( )的特征
2013—2020年,全国普通高校毕业生人数同比增速超过4%的年份有几个
关于动脉血CO2分压升高引起的各种效应,下列哪项叙述是错误的?( )A.刺激外
急性弥漫性增生性肾小球肾炎中增生的细胞主要是A.肾小囊壁层上皮 B.肾小囊脏层
党的十九大明确提出,围绕高质量发展,以()主线,推动经济发展质量变革、效
最新回复
(
0
)