首页
登录
职称英语
[originaltext] Some desert animals can survive the very strong summer heat a
[originaltext] Some desert animals can survive the very strong summer heat a
游客
2024-05-01
144
管理
问题
Some desert animals can survive the very strong summer heat and dryness because they have very unusual characteristics. The camel, for example, can bear an increase in the temperature of its body and its blood of 9℃ In addition, it can drink an enormous amount of water at one time, then store sufficient water in its red blood cells and other parts of its body to supply its need for two weeks or more. The kangaroo rat, on the other hand, obtains all the water it needs from water that it produces during respiration. However, most animals need to maintain a fairly constant body temperature, and will die if it rises more than 5℃ Therefore, they need to find some way to avoid the strong sun rays. Nor can many animals either store or produce water in their bodies, as the camel and kangaroo can. So they must find ways to reduce water loss from their bodies to the lowest degree.
Because very few desert animals can survive the strong rays, the temperature, and the evaporation rate of a typical summer’s day, most of them are active during the night. Only after the sun has set does the desert come fully to life. The night is relatively cool, and the darkness provides protection, not only from the sun, but also from other animals and from the birds. So the coming of darkness is the signal for the large majority of animals and insects to continue their search for water and food. When morning comes, most of them seek shelter again.
16. What does the speaker say about the camel?
17. According to the speaker, in what condition will most animals die?
18. According to the speaker, why are so many animals active during summer night?
选项
A、Too little sunlight.
B、Survival competition.
C、Severe heat.
D、Too much rain.
答案
C
解析
原文提及“大多数动物需要保持体温的恒定,如果体温上升超过5摄氏度,它们就会死亡。”故C正确。
转载请注明原文地址:http://tihaiku.com/zcyy/3579419.html
相关试题推荐
[originaltext]Mr.Stevensonwastheownerofageneralappliancestore.He
[originaltext]Americanslearnsportsaspartoftheireducation.Theylearn
[originaltext]Americanslearnsportsaspartoftheireducation.Theylearn
[originaltext]Somedesertanimalscansurvivetheverystrongsummerheata
[originaltext]W:Whatdidyouthinkaboutthemovie?M:Well...IthinkHarryP
[originaltext]W:Whatdidyouthinkaboutthemovie?M:Well...IthinkHarryP
[originaltext]W:Whatdidyouthinkaboutthemovie?M:Well...IthinkHarryP
[originaltext]W:Whatdidyouthinkaboutthemovie?M:Well...IthinkHarryP
[originaltext]M:Doyouknowwhetherourhealthinsurancecoversexpensesford
[originaltext]M:Doyouknowwhetherourhealthinsurancecoversexpensesford
随机试题
Whatwillthemanprobablydonext?[br][originaltext]M:Canyoutellmehowt
人们对新闻报道的最基本要求是()A.新鲜 B.及时 C.重要 D.真实
企业投资公路建设项目的实施程序中顺序正确的是()。A.编制项目建议书→编制可行
涵洞按构造形式不同可分为()。A:圆管涵 B:盖板涵 C:拱涵 D:箱涵
女性患者,45岁,自好友因脑出血死亡后,出现头皮发麻,伴有头晕。患者怀疑自己脑血
五行学说指导诊断,面见赤色,脉见洪象,则病位在()A.心 B.脾 C.
Thechangeinthatvillagewasmiraculou
治疗阻塞性肺气肿时强调低流量吸氧的理由主要是()。A.流量高低一样 B.高流量
在FIDIC施工合同条件中,关于计量与估价的表述,正确的为()。A.红皮书
能扩张小血管及降低血清胆固醇的维生素是A.维生素D B.大剂量尼克酰胺 C.
最新回复
(
0
)