首页
登录
职称英语
[originaltext] How do the birds manage to find their way? There seems to be
[originaltext] How do the birds manage to find their way? There seems to be
游客
2023-07-24
87
管理
问题
How do the birds manage to find their way? There seems to be no single answer: (32)they use many methods. Some we are beginning to understand; and there may be some that depend on abilities we have not yet suspected. (33) Many birds certainly follow major geographical features. Migrants follow recognized land, fly over familiar sea and arrive at their summer homes.
But all birds cannot use such straightforward methods. An Arctic sea bird, for example, has to fly at least 3,000 kilometers across the Antarctic Ocean with no land to guide it. We know that some birds flying at night, (34) navigate by the star for on cloudy nights they tend to get lost.
Day-flying birds may use the sun. If they are to do so, they must (35) have a precise sense of time. Still others appear to be able to use the earth’s magnetic field as a guide. So it seems that many migrating birds must carry in their brains a clock, a compass and the memory of a map.
选项
A、They use many different methods.
B、All birds follow major geographical features.
C、All birds use their memory of a map.
D、We have no information about this.
答案
A
解析
根据经验,B、C两种说法过于绝对,很可能不属实,剩下A、D两项就比较容易辨别。此题的问题是:"How do the birds manage to find their way?"从听到的"They use many methods"可断定A为正确选项。
转载请注明原文地址:https://www.tihaiku.com/zcyy/2866238.html
相关试题推荐
WhatdotheAmericandoctorssayaboutbabies?[br][originaltext]Somepeop
WhatdotheAmericandoctorssayaboutbabies?[br][originaltext]Somepeop
WhatdotheAmericandoctorssayaboutbabies?[br][originaltext]Somepeop
Whatisthemainpurposeoftheman’svisitthisyear?[originaltext]W:Welcome
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
[originaltext]Humanbeingsenjoychallenges.Manyofthemlikephysicalcha
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubri
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubri
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubri
随机试题
Beingcriticalanddictatorial,thebosswould_________discussionsandignoreco
PASSAGETWOBecauseitkeepstheleveloffamilyconsumption.根据第五段第一句“Unemploymen
Withthepossibleexceptionofequalrights,perhapsthemostcontroversial
糖原累积症最常见的类型是A.Ⅵ型 B.Ⅱ型 C.Ⅰ型 D.Ⅳ型 E.Ⅲ型
患者因缺铁性贫血给予口服铁剂治疗,用药2个月回复正常,此时应A.立即停药 B.
A.豆科B.芸香科C.木兰科D.菊科E.蔷薇科南五味子来源于
设备变电〔2019〕29号 国网设备部关于印发变电站消防设施运维管理规范(试行)
早期胃癌的典型临床表现为 A.上腹隐痛B.恶心呕吐C.胆汁样呕吐D.以上
某饮料生产企业甲为增值税一般纳税人,适用企业所得税税率25%,2020年度实现营
联产品的联合成本在分离点后,可按一定分配方法在各联产品之间进行分配,分配方法包括
最新回复
(
0
)