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
外语
Man has invented ways to keep warm, but how do animals defend themselves? They cannot reason in the sense that man can, but natu
Man has invented ways to keep warm, but how do animals defend themselves? They cannot reason in the sense that man can, but natu
admin
2013-12-08
28
问题
Man has invented ways to keep warm, but how do animals defend themselves? They cannot reason in the sense that man can, but nature has taken care of the animal kingdom by providing animals with special instincts. One of these instincts is known as hibernation(冬眠).
"Sleeping like a dormouse(睡鼠)" is not only a common saying but a reality. When winter comes, the dormouse and other hibernating animals have reached a well-nourished state. They eat very well in warmer days laying down fat in the tissues of their bodies and during hibernation this keeps them alive. Safe in their nests, or burrows, they sleep soundly until the warmth of spring arrives. Bats, tortoises, snakes, frogs, even insects like butterflies, hibernate more or less completely. Some, like the squirrels, sleep during coldest weather but are roused by a warm spell. During hibernation, the temperature of an animal’s body drops drastically. Breathing and heartbeats almost cease.
Another instinctive methods of avoiding intense cold is to escape by means of migration. Wild swans, seagulls, swallows and cuckoos are a few of the very many kinds of birds which fly thousands of miles, twice a year, to avoid cold. Many animals, especially those of the Arctic regions, have summer and winter quarters. The Arctic deer of North America, as well as the reindeer of Europe, move southward towards the forests when winter approaches. They return to the northern area when the warmth of spring begins to be sensed. There are animals which do not attempt to leave at the first sign of winter cold. Their instinctive means of defense is to dig out a deep burrow, made soft and warm by padding out with straw, leaves, moss and fur. In it they have a "secret place" containing food which they hope will last the winter through! Animals which fall into this class include the Arctic fox, the rabbit and the ermine(貂)and the little field-mice.
How do ermines survive in winter?
选项
A、They leave their cozy burrows and migrate to warmer lands.
B、They sleep soundly inside their burrows in winter.
C、They dig out burrows and store them with enough food.
D、They stay in their burrows and live on the food stored there.
答案
D
解析
本题为细节推理题,提问的是貂(ermines)的过冬方式。根据文章倒数第三句“Their instinctive means of defense is to dig out a deep burrow,made soft and warm by padding out with straw,leaves,moss and fur.”可知,这种过冬方式是挖洞并在洞内存储食物,而文章的最后一句话可以判断貂是这种过冬方式的典型动物,所以由此可以判断答案为D).
转载请注明原文地址:https://jikaoti.com/ti/g2iYFFFM
0
成人本科学位英语
相关试题推荐
Treesshouldonlybepruned(修剪,整枝)whenthereisagoodandclearreasonfordoingsoand,fortunately,thenumberofsuchrea
Theoldideathattalentedchildren"burnthemselvesout"intheearlyyears,and,therefore,aresubjectedtofailureandatwo
Theoldideathattalentedchildren"burnthemselvesout"intheearlyyears,and,therefore,aresubjectedtofailureandatwo
Tousitseemssonaturaltoputupanumbrellatokeepthewateroffwhenitrains.Butactuallytheumbrellawasnotinvented
Fearanditscompanionpainaretwoofthemostusefulthingsthatmenandanimalspossess,iftheyareproperlyused.Iffire
Ithasbeenrevealedthatsomegovernmentleaders______theirauthorityandpositiontogetillegalprofitsforthemselves.
Forthispart,youareallowedthirtyminutestowriteacompositionofnolessthan120wordsonthetopic"TheReasonsWhyAdu
Largeanimalsthatinhabitthedeserthaveevolvedanumberofadaptationsforreducingtheeffectsofextremeheat.Oneadaptat
Largeanimalsthatinhabitthedeserthaveevolvedanumberofadaptationsforreducingtheeffectsofextremeheat.Oneadaptat
随机试题
分析三种典型的师生关系模式对学生学业成绩的影响。
A.肺泡周围的毛细血管网B.左心房C.左心室D.右心房E.右心室大循环起于【】
在X线拍片之前可支持诊断骨折的临床体征为
A.高热量、高蛋白、高维生素、易消化饮食B.低动物脂肪、低胆固醇、少糖少盐饮食C.高热量、高维生素、高效价低蛋白饮食D.低盐、高维生素、低蛋白饮食E.高热量、低脂肪、低盐、忌蛋白饮食
女,17岁,某日手持杯子喝水时,杯子突然跌落。后自述当时体感异常。治疗的首选药为()。
营养物质被小肠吸收后,通过哪条血管进入肝脏?()
下边的漫画《超常发挥》给我们的哲学启示是()。
下列对第二段中“补课”这一概念的理解,准确的一项是()。根据全文分析,不属于“今日中国需要启蒙”的理由的一项是()。
Overhalftheworld’speoplenowliveincities.Thelatest"GlobalReportonHumanSettlements"saysasignificantchangetookp
Theyareregardedaschoresbybothsexes,butfall(1)_____ononlyone.ThelatestsurveyoftimeuseinAmericasuggestswomen
最新回复
(
0
)