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
50
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 are highly intelligent animals.
B、Because they are too huge to measure.
C、Because they are blue and difficult to see.
D、Because they can move in three dimensions freely.
答案
B
解析
短文中提到,蓝鲸的体重很难测量是因为其体型庞大。因此答案为B)。
转载请注明原文地址:https://tihaiku.com/zcyy/2900572.html
相关试题推荐
[originaltext](23)WiththeInternetrevolutionusheringinnewmodesofco
[originaltext]Hereisaquestionforyou.Thecustomerisalwaysright.Rig
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreat
[originaltext]MedicalexpertssaymostAmericansdonotgetenoughsleep.T
[originaltext]TheWorldHealthOrganizationsays57nationsinSouthernAfr
[originaltext]TheWorldHealthOrganizationsays57nationsinSouthernAfr
[originaltext]TheWorldHealthOrganizationsays57nationsinSouthernAfr
[originaltext]W:WhatdoyouthinkofTV?Ithinkitisafalsegod,adang
[originaltext]W:WhatdoyouthinkofTV?Ithinkitisafalsegod,adang
[originaltext]W:WhatdoyouthinkofTV?Ithinkitisafalsegod,adang
随机试题
Individual-to-groupcommunicationincludes______.[br]Thecompanylobbiesare
Thepassageasawholecanbestbecharacterizedaswhichofthefollowing?[br]
[originaltext]M:Hello.W:Hello.ThisisDr.Gray’soffice.We’recallingtorem
A—midfieldB—backfieldC—cheerteamD—shootE—cornerhall
Aninternationalcommitteeofdoctorssaysthatthenumberofcasesofbrain
我国近代最成熟的学制是_________。
有学者认为,西周确立了封建大一统,那么春秋战国诸侯争霸吞并就是对西周体制的否定。
下列历史事件按时间排序正确的一组是()。A.司马迁修《史记》—文景之治一王莽篡汉
炎性息肉A.肉芽组织增生 B.肉芽肿形成 C.纤维素渗出 D.黏膜上皮及间
关于不同类型的政权组织形式,下列说法中正确的是:()A.二元君主立宪制中君
最新回复
(
0
)