首页
登录
职称英语
[originaltext] Animals do many different, amazing things to get through the
[originaltext] Animals do many different, amazing things to get through the
游客
2024-02-25
21
管理
问题
Animals do many different, amazing things to get through the winter. Some of them travel to other places where the weather is warmer or they can find food. Many birds travel in the fall. (32) Because the trip can be dangerous, some travel in large flocks. For example, geese fly in noisy, "V"-shaped groups. Other kinds of birds fly alone. (33) How do they know when it is time to leave for the winter? Scientists are still studying this. Many see transference as part of a yearly cycle of changes that a bird goes through. The cycle is controlled by changes in the amount of daylight and the weather. Most birds transfer shorter distances. But how do they find their way to the same place each year? (34) Birds seem to navigate like sailors once did, using the sun, moon and stars for direction. They also seem to have a compass in their brain for using the Earth’s magnetic field. Other animals transfer, too. (35) There are a few mammals, like some bats, and whales that travel in search of food each winter. Many fish transfer. They may swim south, or move into deeper, warmer water. Insects also transfer. Some butterflies and moths fly very long distances. For example, Monarch butterflies spend the summer in Canada and the Northern U. S. They transfer as far south as Merico for the winter. Most insects go much shorter distances. Many, like white ants and Japanese beetles, move downward into the soil. Earthworms also move down, some as far as six feet below the surface.
选项
A、The sun is in the same direction.
B、They can see the compass.
C、They have made the sign on the way.
D、They have the instinct to tell the direction.
答案
D
解析
题干中询问鸟类每年都能找到同样的地方的原因。文章中提及鸟类像海员一样利用太阳、月亮、星星来判断方向,而且它们体内像装了指南针一样通过地球磁场来判断方向。根据此信息,推测出鸟类的这个特性来自本性。故答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/3482312.html
相关试题推荐
[originaltext]Londontaxidriversknowthecapitallikethebackoftheirh
[originaltext]Londontaxidriversknowthecapitallikethebackoftheirh
[originaltext]Inthelocalnewspaperofmycommunityrecently,therewasa
[originaltext]Inthelocalnewspaperofmycommunityrecently,therewasa
[originaltext]Afour-yearstudyconductedbytheInfantTestingCenterinS
[originaltext]Afour-yearstudyconductedbytheInfantTestingCenterinS
[originaltext]Afour-yearstudyconductedbytheInfantTestingCenterinS
[originaltext]OnekindofvacationthatmanyAmericansenjoyiscamping.Ea
[originaltext]W:Didyouknowitwasgoingtoraintoday?M:Absolutelynot,th
[originaltext]W:Didyouknowitwasgoingtoraintoday?M:Absolutelynot,th
随机试题
Thoughthecharactershankerfortheirscarstofadeandbeforgotten,it’swhen
Thefirstparagraphmainlyindicatesthat______.[br]Theunderlinedword"filt
Forestisacomplexecosysteminwhichtreesarethedominantlifeform.Tre
Westerndoctorsarebeginningtounderstandwhattraditionalhealershaveal
军事巨著militarymasterpiece
Genetics,thestudyofgenes,isgainingincreasingimportance.Genescan【B1
将硬盘中的数据读入到内存中去,称为A.显示 B.读盘 C.输入 D.写盘
各种典型的涂料助剂有()。A.防沉剂、润湿剂、分散剂 B.消泡剂、催干剂、流平
女,30岁。因心悸心慌30分钟前来就诊,心电图示阵发性室上性心动过速,按压眼球及
构建中国特色现代军事力量体系是建设世界一流军队的力量基础。总体来说,就是要加快形
最新回复
(
0
)