首页
登录
职称英语
[originaltext] Whales are huge, but difficult to see, which adds to their my
[originaltext] Whales are huge, but difficult to see, which adds to their my
游客
2024-03-08
17
管理
问题
Whales are huge, but difficult to see, which adds to their mystery and fascination. They are highly intelligent animals with an elaborate social life, no possessions and the complete freedom of movement in three dimensions.
Blue whales are difficult to weigh because of their size, nevertheless, at up to 200 tons, even an ordinary-sized whale is a vast and impressive creature. Their tongues can weigh as much as an elephant; their hearts weigh as much as an automobile. Quite a size!
As their names suggest, blue whales look true blue underwater, but on the surface their color is more like blue-gray. Their underbellies take on a yellowish color from the millions of micro-organisms that take up residence in their skin.
Blue whales live in all the world’s oceans, occasionally swimming in small groups, but usually alone or in pairs. They often spend summers feeding in polar waters and undertake lengthy migrations towards the equator as winter arrives. These graceful swimmers cruise the ocean at more than five miles an hour, but accelerate to more than 20 miles an hour when they are angry. Blue whales are among the loudest animals on the planet. They emit a series of pulses, groans and moans, and it’s thought that, in good conditions, blue whales can hear each other up to 1,000 miles away. Scientists think that they use these methods not only to communicate, but, along with their excellent hearing, to navigate the lightless ocean depths.
Questions 9 to 11 are based on the passage you have just heard.
9.Why are blue whales difficult to weigh?
10. Why do we call the animals blue whales?
11.How do blue whales communicate with each other over long distance?
选项
A、By emitting a series of pulses, groans and moans.
B、By cruising the ocean at more than 20 miles an hour.
C、By changing the color of their backs.
D、By giving out yellowish light.
答案
A
解析
短文中提到,它们发出一系列的脉冲、呻吟声和呜咽声,据猜测,在条件好的情况下,蓝鲸可以在1,000英里以外的地方听到彼此的声音。科学家认为它们用这些方法不仅可以相互沟通,加上它们极好的听力,还可以在昏暗的海洋深处前行。因此答案为A)。
转载请注明原文地址:https://tihaiku.com/zcyy/3516834.html
相关试题推荐
[originaltext]W:Andwhendidyoubeginthissortofwork?M:Let’sseenow...
[originaltext]Nowlet’stakealookatsomewaysinwhichwecanincreaset
[originaltext]Everyyear,itcostsBritishstudentsmoreandmoretoattend
[originaltext]W:Ithinkifyouwanttogetsomeexcitementinyourlifeyouou
[originaltext]W:EricSchurenbergisthemanagingeditorofMoneyMagazineint
[originaltext]Lasttimeweweretalkingabouttheneedforadvertising.Now
[originaltext]Lastspring,SteveMcCarronhadhadenough.For10years—sinc
[originaltext]TheInternethascreatedawholenewworldofsocialcommunic
A、Itisrelativelycheapforsomuchpreciousmetal.B、Itisdifficulttojudge
[originaltext]W:Dr.Thomas?ThisisKeetBradleyfromthedailynews.I’dlike
随机试题
JobSatisfaction1.工作满意度对个人很重要2.工作满意度包含哪些因素3.工作满意度如何实现
[originaltext]M:Hi,Jane,doyouhavesomechange?Ihavetomakeacallonth
Ourtheoriesabouthumandiseasearetheproductofcurrentfashion【M1】__
InterculturalCommunicationProblemsandSolutionsI.InterculturalCommunicatio
二、考题解析 【教学过程】 (一)提出疑问,引入新课 【多媒体展示
对50名40岁以上的山区健康男子测量血压(mmHg),与全国正常男子资料进行比较
(2017年)下列关于在债务管理中应当注意事项的说法中,正确的有()。 Ⅰ总
采用单价合同时,最后工程结算的总价是根据( )计算确定的。A、发包人提供的清单
A.测定的结果与真实值或参考值接近的程度,一般以百分回收率表示B.在规定的条件下
A公司经销健身器材,规定每台售价为2000元,业务员按合同价5%提取奖金。业务员
最新回复
(
0
)