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
59
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
Thatjewelryshopisreported______inbroaddaylightyesterday.A、robbedB、tob
NarratorListentopartofalectureaboutGPS.Nowgetreadytoans
ThelargestcityinNewZealandisA、Christchurch.B、Auckland.C、Wellington.D、Ha
设函数f(x)=ax-blnx(a>o)有2个零点,则鱼的取值范围是( ).
靶形红细胞常见于A.珠蛋白生成障碍性贫血 B.缺铁性贫血 C.溶血性贫血
患者近日外出,现症见腰部冷痛重着,转侧不利,逐渐加重,静卧病痛不减,寒冷和阴雨天
以下哪项最不可能是政府实施最低价控制的原因?()A.避免价格上的恶性竞争 B
《反对本本主义》是毛泽东写作的最早的一篇马克思主义的哲学著作,在这篇著作中,毛泽
下列哲学学派中,不属于希腊化时期的是()。A.斯多葛学派 B.伊壁鸠鲁学派
项目监理机构施工阶段投资控制采取的措施中,属于经济措施的是( )。 A.控制
最新回复
(
0
)