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
专升本
We know that many animals do not stay in one place. Birds, fish and other animals move from one place to another at a certain ti
We know that many animals do not stay in one place. Birds, fish and other animals move from one place to another at a certain ti
admin
2010-12-30
87
问题
We know that many animals do not stay in one place. Birds, fish and other animals move from one place to another at a certain time. They move for different reasons; most of them move to find food more easily, but others move to get away from place that are too crowded.
When cold weather comes, many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration(迁移) is probably the migration of the fish, which is called " salmon". This fish is born in fresh water but it travels many miles to salt water. There it spends its life. When it is cold, it returns to its birthplace in fresh water. Then it gives birth and dies there. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowded. They move down to the low land. Sometimes they move to the seaside and many of them are killed when they fall into the sea.
Recently, scientists have studied the migration of a kind of lobster (龙虾) . Every year, when the season of the bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody knows where they go.
So, sometimes we know why humans and animals move from one place to another, but at other times we don’t. Maybe living things just like to travel.
Salmon is known as a creature spending most of its life in______.
选项
A、warm water
B、fresh water
C、cold water
D、salt water
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/4lLC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Astherecipientsofsuchservicesweinturnfindourselveswantingtosupportthemall,foriftheyaretakingthetroubleto
ChinesetradedelegationshavebeensenttoAfricancountries,whowillnegotiatetradeagreement.
ThepricessystemintheUnitedStatesisverycomplex.Itiscomposedofthepricesofalltheproductsboughtandsoldinthe
Ivaguelyremember______somethinglikethat.
Isthereadarksidetothecomputerrevolution?Docomputersdoharmtooursociety?Itcertainlydoesn’tseemthatwayon
Normallyastudentmustattendacertainnumberofcoursesinordertograduate,andeachcoursethatheattendsgiveshimacre
InBritaintodaywomenmakeup44%oftheworkforce,andnearlyhalfthemotherswithchildrenareinpaidwork.
Moderntechnologyhasplaced______everykindofmusic,fromvirtuallyeveryperiodinhistoryandeverycorneroftheglobe.
Aweddingiscelebratedwithsomekindofceremonyalmosteverywhereintheworld.Theceremonyisdifferentamongdifferentnat
随机试题
论述两次世界大战期间的国际形势与中国外交选择。(北京大学2017年中国史真题)
以下产品均出自于IBM的是
下列维生素D中最有生物活性的是
婴儿期每日热量及水的需要是
肺炎喘嗽的主要病机是()
【背景资料】某新建住宅工程项目,建筑面积23000m2,地下2层,地上18层,现浇钢筋混凝土剪力墙结构。项、目实行项目总承包管理。施工总承包单位项目部技术负责人组织编制了项目质量计划,由项目经理审核后报监理单位审批,该质量计划要求建立的
______yourprice______acceptable,wewillplaceanorderwithyou.()
下列关于第—会计等式的论述,正确的有()。
商业银行的基本职能不包括()。
[A]Overworking[B]Toomuchhelp[C]Toomuchroutine[D]Beingaperfectionist[E]Caringonlyformoney[F]To
最新回复
(
0
)