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
2023-08-05
62
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、Because they look true blue underwater.
B、Because they look true blue on the surface.
C、Because they have true blue underbellies.
D、Because they have true blue eyes.
答案
A
解析
短文中提到,正如它们的名字一样,蓝鲸在水下看起来是纯蓝色的。因此答案为A)。
转载请注明原文地址:http://tihaiku.com/zcyy/2900573.html
相关试题推荐
[originaltext]W:Hmm,hi.M:Hi,Iamgoingdoortodoortonighttotellpeople
[originaltext]W:Hmm,hi.M:Hi,Iamgoingdoortodoortonighttotellpeople
[originaltext]W:Hmm,hi.M:Hi,Iamgoingdoortodoortonighttotellpeople
[originaltext]M:Howdoyouandyourhousemateslike[5]thenewco-op?I’mthink
[originaltext]M:Howdoyouandyourhousemateslike[5]thenewco-op?I’mthink
[originaltext]M:Howdoyouandyourhousemateslike[5]thenewco-op?I’mthink
[originaltext]M:Howdoyouandyourhousemateslike[5]thenewco-op?I’mthink
[originaltext]M:Hi,Lynn.Isawyouatregistrationyesterday.Isailedright
[originaltext]M:Hi,Lynn.Isawyouatregistrationyesterday.Isailedright
[originaltext]M:Hi,Lynn.Isawyouatregistrationyesterday.Isailedright
随机试题
[img]2018m9s/ct_etoefz_etoeflistz_201808_0046[/img][br]Whatbenefitsofbuying
[originaltext]M:Whatareyoueating,Samantha?Apieceofsteak?Ithoughtyou
关于文书注办,下列表述正确的是()。A.注办是在文件处理单上简要注明文书办理的
“思想政治工作是经济工作和其他一切工作的生命线”这一论断是()提出来的。A.19
教育心理学研究的核心内容是()。A.学习内容 B.学习方法 C.学习过程
A.法律的渊源 B.法律的规范 C.卫生法 D.卫生法律 E.卫生法规法
A.妊娠禁用药B.妊娠忌用药C.妊娠慎用药D.妇科禁用药E.产科忌用药一般包括通
下列关于中国古建筑空间度量单位的表述,哪项是错误的?( )A.平面布置以“间”
从银行角度来讲,资产转换周期包括()。A:生产转换周期B:资本转换周期C:销
A省某煤矿各种证照均在有效期内。2018年核准生产能力为80x104t/a。
最新回复
(
0
)