首页
登录
职称英语
[originaltext] One of the greatest mysteries of nature is the instinct to mi
[originaltext] One of the greatest mysteries of nature is the instinct to mi
游客
2023-09-02
14
管理
问题
One of the greatest mysteries of nature is the instinct to migrate. Every year, millions of creatures feel the need to migrate and most people have seen the arrival or departure of migrating flocks of birds. In England, for example, we always know when Autumn is coming, because flocks of swallows sit on the telegraph wires. Migration is not only seen in birds but also in reptiles, for example, turtles, frogs and toads. Insects, such as locusts and butterflies; fish, such as eel, salmon and tunas and mammals, such as reindeer, seals, lemmings, whales and bats. Many of these creatures can find their way over long distances. And how they do it is a mystery and a wonder to everyone, especially for those of us who have difficulty even reading a map covering 100 miles. There are several suggestions about how they navigate. Firstly, it is suggested, they navigate by using stars and planets for guidance. Secondly, some people think that these migrating mammals find their way by following the pole of the earth’s magnetic field. Thirdly some people think that migrating birds, insects and animals follow a certain smell or scent. Fourthly, another group of people believe that animals migrate by recognizing geographical features. Fifthly, some people think that animals migrate by following changes in temperature. And finally, there are people who suppose they migrate by following sound.
选项
A、The weather gets hotter.
B、Telegraph wires stand still.
C、Swallows sit on telegraph wires.
D、People find the mystery of migration
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2977781.html
相关试题推荐
[originaltext]TelevisionorTVisamodemwonderofelectronics.Itbrings
[originaltext]TelevisionorTVisamodemwonderofelectronics.Itbrings
[originaltext]TelevisionorTVisamodemwonderofelectronics.Itbrings
[originaltext]Americanscientistsaredevelopingmapsthatcanidentifyare
[originaltext]W:Excuseme.Doyoulivehere?M:Yes,I’velivedhereinEdinbu
[originaltext]W:Excuseme.Doyoulivehere?M:Yes,I’velivedhereinEdinbu
[originaltext]W:Excuseme.Doyoulivehere?M:Yes,I’velivedhereinEdinbu
[originaltext]W:Excuseme,Inoticedyou’rereadinganelectronicsmagazine.D
[originaltext]W:Excuseme,Inoticedyou’rereadinganelectronicsmagazine.D
[originaltext](33)Ourenvironmentisbeingpollutedfasterthannaturean
随机试题
ThecuisineofMexicocanbedatedbackto700B.C.,whentheareawaspopul
Whichofthefollowingtitlesbestillustratetheideaofthepassage?[br]Ify
Manyfieldsofsciencestandtogainfromtheongoinganalysisofthehuman
砌块及料石砌体结构房屋,檐口标高为()时,应在檐口标高处设置圈梁一道。A.2~
A.高阴离子间隙型代谢性酸中毒 B.正常阴离子间隙型代谢性酸中毒 C.Cl响
新生儿出生后1分钟的Apgar评分,下列哪项是错误的A.满分为10分,为正常新生
催化脂肪酸合成的限速酶是 A.HMGCoA还原酶B.HMGCo
下列属于集合资产管理计划推广安排中的禁止行为的是()。A:委托证券公司的客户资金
青黛入丸散剂的用量是A.5~10g B.0.5~1g C.1~5g D.0
某进口设备,按人民币计算的离岸价为500万元,国外运费率为8.2%,国外运输保险
最新回复
(
0
)