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
44
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、To fly one following another.
B、To fly without stopping.
C、To use land features as the guide.
D、To take one route only.
答案
C
解析
此题的问题是:"What is the most straightforward method for the birds to use to find their way?"由于文中根本未提到A、B、D,则可用排除法直接选定C为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2866239.html
相关试题推荐
WhatdotheAmericandoctorssayaboutbabies?[br][originaltext]Somepeop
WhatdotheAmericandoctorssayaboutbabies?[br][originaltext]Somepeop
WhatdotheAmericandoctorssayaboutbabies?[originaltext]Somepeopletho
Whatisthemainpurposeoftheman’svisitthisyear?[originaltext]W:Welcome
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
[originaltext]M:Hi,Sis.IjustcameovertodropofftheDVDsyouwanted,and…H
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubri
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubri
随机试题
Whereisthewoman?[br][originaltext]W:Ihaveapaininmylowerback.Itre
Lastyear,FillmoreCounty’sfarmersusedSordane,ahighlyeffectivenonper
Anabbreviation(缩写词)canbedefinedasashortenedformofawordorterm.
[originaltext]Womenaremorelikelythanmentokeepjointpossessionswhen
A.受试者运动到筋疲力尽或主观最大运动强度 B.以运动诱发呼吸或循环不良的症状
下列选项中,可能导致企业借款需求增加的有( )。A.利润率由正转负 B.季节
A.隐白 B.太白 C.公孙 D.三阴交 E.地机足太阴脾经的郄穴是(
洋地黄毒苷的主要消除方式是A.肝脏灭活B.肾脏排泄C.胆道排泄D.汗腺排泄E.乳
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
某施工单位通过公开招标中标某工程,与业主签订的承包合同部分内容有: (1)工程
最新回复
(
0
)