首页
登录
职称英语
Why don’t birds (71) lost on their long flights from one place to another?
Why don’t birds (71) lost on their long flights from one place to another?
游客
2023-09-26
75
管理
问题
Why don’t birds (71) lost on their long flights from one place to another? Scientists have puzzled over this (72) for many years. Now they are beginning to fill (73) the blanks.
Not long ago, experiments (74) that birds rely on the sun to guide them (75) daylight, hours. But what about birds (76) fly by night? Tests with artificial stars have proved that (77) night - flying birds are able to follow the stars in their long - distance (78) A dove had spent its lifetime in a cage and had never flown under a (79) sky. Yet it showed a(n) (80) ability to use the stars for guidance. The bird’s cage was placed under a (n) (81) star - filled sky. The bird tried to fly in the position as that (82) by his outdoor cousins. Any (83) in the position of the make believe stars caused a change (84) the direction of his flight.
(85) think that doves, when flying in daylight, use the sun for (86) . But the stars are (87) their principal means of navigation. What do they do when the stars are (88) by clouds? Apparently, they find their way by such landmarks as (89) ranges, coast lines, and river courses. But when it’s too dark to see (90) , the doves circle helplessly, unable to get their bearing(方位). [br]
选项
A、easily
B、undoubtedly
C、apparently
D、importantly
答案
C
解析
apparently意为“看来、似乎”。
转载请注明原文地址:https://tihaiku.com/zcyy/3046575.html
相关试题推荐
Heinsistedonpurchasinganotherhouse,whichhehadnousefor.A、他已经没有什么用处了,但还
Allofuscommunicatewithoneanothernonverbally,aswellaswithwords.Mo
Anotherculturalaspectofnonverbalcommunicationisonethatyoumightnot
ProfessorLeeissaid______anotherimportantdiscoveryinphysics.A、tomakeB、h
[originaltext]M:Itseemsthatwe’llhaveanotherfinedaytomorrow.Let’sgot
[originaltext]W:Mr.Long,canyoutransfermetoanotherdepartment?M:Why?G
[originaltext]W:Mr.Long,canyoutransfermetoanotherdepartment?M:Why?G
AnothervirtueAmericansrespectisperseverance.RememberAesop’sfableabou
Faces,likefingerprints,arenotthesameasoneanother.Didyoueverwond
Alllifeonourearthdepends,inonewayoranother,onthesun.Withoutits
随机试题
Thefacesofelderly,happily-marriedpeoplesometimesresembleeachother.
Inthepopularmind,theInternetistherealizationoftheglobalvillage,
BabyBodyLanguageI.Fistinmouth—Indicationa)Hungry:ruledoutifthebaby
PaparazziTheterm"paparazzi"comesfroma
甲公司为一家拟上市的医药生产公司,该公司董事会目前正在审查公司的内部控制系统。
清河二中的张校长说高三学生从前的那种勤奋学习的精神越来越不多见了,因为我发现目前
破产企业按照经批准的职工安置方案支付所欠职工的工资,将相关账面价值与实际支付的金
健康观的三个维度包括() A.身体、心理和团体 B.身体、心理
关于胃大部切除术后十二指肠残端破裂的叙述,下列哪项不正确? A.大部分病
对混凝土有快硬高强要求的条件下不宜使用()。A.硅酸盐水泥 B.普通硅酸盐水泥
最新回复
(
0
)