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
2024-04-24
28
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.
Questions 16 to 18 are based on the passage you have just heard.
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、They couldn’t bear the coldness underground.
B、They can’t find food in the daytime.
C、They cannot find water in the desert during the daytime.
D、They cannot bear the rays and temperature during the daytime.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3569148.html
相关试题推荐
[originaltext]Mr.Stevensonwastheownerofageneralappliancestore.He
[originaltext]Americanslearnsportsaspartoftheireducation.Theylearn
[originaltext]Americanslearnsportsaspartoftheireducation.Theylearn
[originaltext]Somedesertanimalscansurvivetheverystrongsummerheata
[originaltext]W:OurlecturetodayisgivenbyProfessorBarton.He’sgoingto
[originaltext]W:OurlecturetodayisgivenbyProfessorBarton.He’sgoingto
[originaltext]M:Backgroundmusicissupposedtoinfluenceyourattitudesandp
[originaltext]M:Backgroundmusicissupposedtoinfluenceyourattitudesandp
[originaltext]W:Thecityisgoingtoteardownthoseoldonefetoryhousesand
[originaltext]W:Thecityisgoingtoteardownthoseoldonefetoryhousesand
随机试题
抹灰用的石灰膏可用磨细生石灰粉代替,用于罩面时,熟化时间不应少于()。A.1
物理安全技术包括机房安全和( )。A.数据安全 B.系统安全 C.通信安全
能够促进高血压发生的营养素( )。A.维生素C B.大豆蛋白质 C.钠
应付票据是企业在延期付款的背景下,进行商品交易时开具的反映债权债务关系的票据,其
是指通过基因水平的操纵而达到治疗或预防疾病的疗法A.细胞治疗 B.光量子治疗
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
西方学者提出的“日常生活审美化”理论,从其产生的客观基础而论,它是在科技飞速发展
A.解热、镇痛药抑制体内前列腺素的生物合成 B.抗酸药中和胃酸,可用于治疗胃溃
在财政转移性支出相比,财政购买性支出的不同之处在于()。A.取得资金的一方无需
最新回复
(
0
)