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
2024-03-07
53
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 1000 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
原文中提到,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:http://tihaiku.com/zcyy/3513629.html
相关试题推荐
[originaltext]Researchersquestioned580Americansfromages15to26,asw
[originaltext]AprilFools’Day,sometimescalledAllFools’Day,isoneof
[originaltext]AprilFools’Day,sometimescalledAllFools’Day,isoneof
[originaltext]AprilFools’Day,sometimescalledAllFools’Day,isoneof
[originaltext]AprilFools’Day,sometimescalledAllFools’Day,isoneof
[originaltext]FiguresfromtheLaborDepartmentshowedtheUSeconomycreat
[originaltext]FiguresfromtheLaborDepartmentshowedtheUSeconomycreat
[originaltext]FiguresfromtheLaborDepartmentshowedtheUSeconomycreat
[originaltext]Anapplication,orapp,developedbyresearchersattheUnive
[originaltext]W:Thankyoufortakingthejobinterview.Canyousellyourself
随机试题
Masstourismisaformoftourismthatinvolvestensofthousandsofpeople
Thedoctoradvisedhertostayinbed,sayingshewasmuch______.A、weakenoughB
Forwhatoccasionhasthecakebeenmade?[br][originaltext]M:I’vejusthada
患儿,6个月,早产儿,出生体重2200g,母乳喂养,现体重8kg,家长发现孩子多
宁波人张石川与广东人郑正秋合作于1913年导演拍摄了(),这是中国人拍摄电影故事
操作风险应当包括法律风险和声誉风险。()?
金融机构从事主承销业务,除具备一般条件外,还应取得()。A:全国银行间同业拆借市
根据《个人外汇管理办法》,下列关于个人外汇账户管理的说法中,正确的是()。
基因表达中的诱导现象是指A.阻遏物的生成 B.细菌利用葡萄糖作碳源 C.细菌
适用于捕集粒径50微米以上预除尘器是()。A.机械除尘 B.布袋除尘
最新回复
(
0
)