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
35
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] 【T2】
”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
navigate
解析
本题与“鲸鱼依赖听力”的内容相关,空格前的不定式标志to提示空格应填入动词原形。录音提到,海洋生物依赖听力来导航,故填入navigate。
转载请注明原文地址:https://tihaiku.com/zcyy/3123749.html
相关试题推荐
Hearingwewill______candies,thechildrensuddenlygatheraroundus.A、assignB
Thelittlegirl’sattentionwassuddenlycaughtbyaragdollwhich_______put
Hearingwewill_______candies,thechildrensuddenlygatheraroundus.A、assign
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
MassStrandingsofWhales1.Thetidegoesoutsuddenly,
随机试题
[originaltext]BadweatherforcedmissionmanagerstopostponelaunchingNASA
[originaltext]W:GregorywillbeleavingthisSundayandit’salsohisbirthday
下列技术经济指标中,属于公共建筑设计方案的技术经济指标的是( )。A.体型系数
女性,30岁,Ⅰ型糖尿病病史10年,长期饮食控制及胰岛素治疗,血糖控制可。出现反
高脂肪、高糖含量的食物有害人的健康。因此,既然越来越多的国家明令禁止未成年人吸烟
李某购买的商品房交付后,经检测室内空气质量不符合国家标准。预计李某治理空气污染的
生活好了,人们越来越喜欢外出旅游度假。但在旅游中应当如何注意个人行为、体现旅游文
一般资料:某男,25岁,初中毕业,车工,目前已病休1年。 案例介绍:5年前在车
(2021年真题)甲公司职工钱某在上班期间因操作失误致使手臂损伤而住院治疗。下列
在我国,纳入政府非税收入管理的财政资本有( )。A.彩票公益金 B.行政事业性
最新回复
(
0
)