首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Because they look true blue underwater. B、Because they look true blue on the surface. C、Because they have true blue underbelli
A、Because they look true blue underwater. B、Because they look true blue on the surface. C、Because they have true blue underbelli
admin
2021-09-29
25
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:https://kaotiyun.com/show/1Ex7777K
0
大学英语六级
相关试题推荐
A、Thewomanisaprofessor.B、ThewomanistheDean’sassistant.C、Themanisaseniorstudent.D、Themanisinbigtrouble.C
WriteacompositionentitledAwayfromNet-barCampaign.Youshouldwriteatleast150wordsaccordingtotheoutlinegivenbelo
Competitionforadmissiontothecountry’stopprivateschoolshasalwaysbeentough,butthisyearElisabethKrentsrealizedit
Therecent,apparentlysuccessfulpredictionbymathematicalmodelsofanappearanceofEINino—thewarmoceancurrentthatperi
Nowadays,computerisbecomingmoreandmorewidelyused.Butpeoplearenotthatfamiliarwithknowledgeofcomputer.Howtoop
YoumayhaveheardthatCoca-Colaoncecontainedaningredientcapableofsparkingparticulardevotioninconsumers:cocaine.Th
ResilienceIsAboutHowYouRecharge,NotHowYouEndure[A]Asconstanttravelersandparentsofa2-year-old,wesometimesfan
在大家庭(extendedfamilies)里,老一辈人的意见受到尊重,小一辈的人得到全家的爱护。中国宪法(constitution)规定赡养父母是成年子女义不容辞的责任。在城市里,不和家里老人一起住的年轻夫妇给老人生活费(livingallowanc
A、Itallowsthemtomeetstudentsfromotheruniversities.B、Itpromotestheconceptofself-learning.C、Itallowsmoreflexibil
A、Itwillmakeconflictsbetweenpeople.B、Itwillhaveabadimpactonbrains.C、Itisawasteoftimeandenergy.D、Itisaki
随机试题
在使用氨液分离器的重力供液系统中,应严格控制()的开启度,以保证容器内的标准液位。
社会和谐是()。
与呼吸困难无明显关系的疾病包括
特别行政区的有关机关制定和认可的法律规范不得与特别行政区的基本法相抵触,并须报()
钢筋混凝土用热轧带肋钢筋,每批数量不大于()t,取一组试样进行钢筋试验。
背景资料:某堤防除险加固工程依据《堤防和疏浚工程施工合同范本》签订了施工合同,施工内容包括防洪闸及堤防加固。其中经承包人申请、监理单位批准,发包人同意将新闸门的制作及安装由分包单位承担。合同约定:(1)由于设计变更,当实际完成工程量超过
在一定时期内连续记载许多同类经济业务的会计凭证,称为()。
当你把社会看作一个复杂的系统的时候,重视多种因素的动态协调,才会更好地促进社会的和谐。假如遇到问题,就从概念出发,进行简单的定性和判断,强求一致,非此即彼。这种思维的简单化、片面化、极端化,都与和谐社会的要求格格不入。这段话的主旨是( )。
3,4,12,18,-44,()
我们青年人要像夏天的太阳一样,有一颗赤热的心,要勤奋,要勇敢,还要坚韧,除去懒惰怯弱的习惯与不肯吃苦的念头,到成年的时候,才能负担责任,创立大事业,收到良好的结果。夏天的清晨是何等舒适和快乐。我们应该早起,可以运动,可以在花间行走,看看植物的生活状
最新回复
(
0
)