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
30
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
______dullhemaybe,heiscertainlyaverysuccessfultopexecutive.A、Although
[img]2012q2/ct_eyyjsdz2011a_eyyjsdcloze_0016_20121[/img]ThisisMattDrudge
最近,北京雾霾(haze)天气增多,PM2.5指数居高不下,空气质量越来越差。2013年,一种新型涂料产品问世,这种新涂料不仅节能环保,还将在应对城市
国家决定推广乙醇汽油的应用。所谓乙醇汽油就是在汽油中加入适量乙醇混合而成的一种燃
可增强磺酰脲类降血糖作用,并可能产生低血糖的药物是A、呋塞米 B、阿司匹林
患者女性,35岁。反复低热、夜尿多2年,3次尿培养均为大肠杆菌生长,为确诊疾病,
下列关于金融工具和金融市场的叙述错误的是()。A.股票属于直接融资工具,其发行
据报道,某个以前曾经获得过全国冠军的体育选手失去了作,无奈之下,只能摆街摊以维持
施工过程中,施工测量放线和复测工作发生的费用应计入()。A.分部分项工程费
知识点:人乳优点 人乳与牛奶的最大区别是 A.营养齐全 B.含优质蛋白质
最新回复
(
0
)