首页
登录
职称英语
Some people associate migration mainly with birds. Birds do travel vast dist
Some people associate migration mainly with birds. Birds do travel vast dist
游客
2024-01-02
28
管理
问题
Some people associate migration mainly with birds. Birds do travel vast distances, but mammals also migrate. An example is the caribou, reindeer that graze on the grassy slopes of northern Canada. When the weather turns cold, they travel south until spring. Their tracks are so well-worn that they are clearly visible from the air. Another migrating mammal is the Alaska fur seal. These seals breed only in the Pribilot Islands in the Bering Sea. The young are born in June and by September are strong enough to go with their mothers on a journey of over 3,000 miles. Together they swim down the Pacific Coast of North America. The females and young travel as far as southern California. The males do not journey so far. They swim only to the Gulf of Alaska. In the spring, males and females all return to the islands, and there the cycle begins again. Whales are among the greatest migrators of all. The humpback and blue whales migrate thousands of miles each year from the polar seas to the tropics. Whales eat huge quantities of plankton. These are most abundant in cold polar waters. In winter, the whales move to warm waters to breed and give birth to their young. [br] Whales live on ______
选项
A、tiny plants and animals in the sea
B、the grassy slopes of northern Canada
C、their young in cold winter
D、the abundant seafood in tropic waters
答案
A
解析
见文章倒数第三、四句:Whales eat huge quantities of plankton(浮游生物)。 These are most abundant in cold polar waters,所以选项A为答案。也可用排除法:选项B指的是reindeer的习性,选项C文中未提及鲸以幼仔为生,选项 D指的是tropic water,与 polar water相反:所以只有选项A正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3326020.html
相关试题推荐
Somepeoplelikehumorousstoriesthatmakethemlaugh.Otherspreferstoriesth
[img]2012q1/ct_etoefm_etoeflistz_0738_20121[/img][br]Whatisthetalkmainlya
[img]2012q1/ct_etoefm_etoeflistz_0848_20121[/img][br]Whatisthetalkmainlya
Manypeoplehavelearnedaforeignlanguageintheirowncountry;othershav
Somepeopleliketocooktheirownmealsathome.Othersprefertoeatinarest
ThefirstpeoplestoinhabitwhattodayisthesoutheasternUnitedStatessus
ThefirstpeoplestoinhabitwhattodayisthesoutheasternUnitedStatessus
ThefirstpeoplestoinhabitwhattodayisthesoutheasternUnitedStatessus
Whatdoesthepassagemainlydiscuss?[br]Whatpointdoestheauthormaketo
Whatdoesthepassagemainlydiscuss?[br]Whichofthefollowingcanbeinfer
随机试题
DaveWalsh,webeditoronboardtheRainbowWarrioragainthisyear,gaveth
OnMarchI,areader’sletterpublishedinLianheZaobao’sForumpagewiththeh
Peopletodayarestilltalkingaboutthegenerationgap(代沟).Someparentsco
对儿童牙齿可能产生不良影响的药是()A.氯霉素 B.红霉素 C.庆大霉素
关于卖出看跌期权的损益(不计交易费用)以下说法正确的是()。A、最大收益为所收
A.六淫B.疠气C.七情D.饮食失宜E.痰饮属于内伤病的一类致病因素的是()。
下列各类收入(收益)中,无需缴纳个人所得税的是:A.居民个人购买国债所获得相应利
为了估计当前人们对管理基本知识掌握的水平,《管理者》杂志为读者开展了一次管理知识
中央银行具有“发行的银行”、“银行的银行”、“政府的银行”三大银行,其中与“政府
拌合设备生产能力主要取决于()等因素。A.混凝土浇筑强度 B.设备容量 C
最新回复
(
0
)