首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Researchers have found that migrating animals use a variety of inner compasses to help them navigate. Some (1)_____ by the posit
Researchers have found that migrating animals use a variety of inner compasses to help them navigate. Some (1)_____ by the posit
admin
2010-09-06
35
问题
Researchers have found that migrating animals use a variety of inner compasses to help them navigate. Some (1)_____ by the position of the Sun. Others navigate by the stars. Some use the Sun as (2)_____ guide during the day, and then (3)_____ to star navigation by night. One study shows that the homing pigeon uses the Earth’s magnetic fields as a guide (4)_____ finding its way home, and there are indications that various other animals, from insects to mollusks (软体动物), can also make (5)_____ of magnetic compasses. (6)_____ is of course very useful for a migrating bird to be able to switch to magnetic compass when clouds cover the sun; (7)_____ it Would just have to land and wait for the Sun to come out again. (8)_____ with the Sun or stars to steer by, the problems of navigation are more complicated (9)_____ they might seem at first. For example, a worker honeybee (10)_____ has found a rich source of nectar and pollen flies rapidly home to the hive to (11)_____: A naturalist has discovered that the bee scout (12)_____ her report through complicated dance in the hive, (13)_____ she tells the other workers not only how far away the food is, but also what direction to fly in (14)_____ to the Sun. (15)_____ the Sun does not stay in one place all day. As the workers start (16)_____ to gather the food, the Sun may (17)_____ have changed its position in the sky somewhat. In later trips during the day, the Sun seems to move farther and farther toward the west. Yet the worker bees seem to have no (18)_____ at all in finding the food source. Their inner (19)_____ tell them just where the Sun will be, and they change their course (20)_____.
选项
A、times
B、clocks
C、journals
D、circumferences
答案
B
解析
蜜蜂靠的是自己的生物罗盘,即前面所说的inner compass,此处即是一个互换词。time(时代),journal(日记),circumferences(周围)都不符合语义,因此只能选择组成inner clocks生物钟,符合题义。
转载请注明原文地址:https://kaotiyun.com/show/dQZ4777K
0
考研英语一
相关试题推荐
Researchersdiscoveredthatplantsinfectedwithavirusgiveoffagasthat______diseaseresistanceinneighboringplants.
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
随机试题
计划的基本特点有()
胆汁中参与消化作用的主要成分是()。
下列各项中,既征收消费税,又征收增值税的有()。
简述有意义学习需要具备哪些条件。
下列承担违约责任的形式不可以同时适用的是()。
中共七大确立毛泽东思想为党的指导思想()。
唯物史观第一次科学地解决了历史创造者的问题,认为人民群众是历史的创造者。人民群众
Title:UnemploymentYourcompositionshouldbebasedontheOutlinegiveninChinesebelow:1.下网被视为目前中国面临的头号问题。2.政府已采取了一系列措施来
在数据库应用系统的需求分析阶段,设有如下工作:Ⅰ.分析与描述目标系统需要完成的功能Ⅱ.分析与描述目标系统对响应时间、存储容量的要求Ⅲ.分析与描述目标系统涉及的数据范围、数据的属性特征及数据之间的关系Ⅳ.分析与描述每项
窗体上有一个名称为Commandl的命令按钮,有程序如下:OptionBase1PrivateSubCommandl_Click()Dima(10)AsInteger’第1个ForFori=1To1
最新回复
(
0
)