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
2023-08-27
37
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:https://tihaiku.com/zcyy/2963155.html
相关试题推荐
[originaltext]Inthepastindustrieshadmorefreedomthantheyhavenow,a
[originaltext]Inthepastindustrieshadmorefreedomthantheyhavenow,a
[originaltext]Whenyouseeacleveradvertisementinanewspaper,doyousa
[originaltext]WhenNancyLublinreceived$5,000fromhergrandfatherin1996
[originaltext]WhenNancyLublinreceived$5,000fromhergrandfatherin1996
[originaltext]M:HowdidyoulikeourAmericanHistoryclassyesterday?W:Well
[originaltext]M:HowdidyoulikeourAmericanHistoryclassyesterday?W:Well
[originaltext]M:HowdidyoulikeourAmericanHistoryclassyesterday?W:Well
[originaltext]M:Hi,Lynn.Isawyouatregistrationyesterday.Isailedright
[originaltext]JaimeEscalantewasconsideredoneofthebestteachersinth
随机试题
"Youdon’thavetowaitforgovernmenttomove...thereallyfantasticthing
OnthemorningofMay90,1927,CharlesA.Lindberghtookofffromamuddyai
下列有关冬季施工增加费计算的表述中,不正确的是()。A.冬季施工增加费的计
动态网幅(Banner)广告的图像通常是______格式文件。A.BMP B.
甲亢术前准备,脉率应降至每分钟A.110次以下 B.90次以下 C.80次以
贷款分类的目标准备金是否充足提供依据不包括( )。A.揭示贷款的实际价值 B
关于语颤的描述,下列不正确的是A.发音强、音调低、胸壁薄者语颤强 B.左胸上部
教学认识的主体是教师。()
患者女,35岁。右下颌智牙反复肿痛伴开口受限2个月。抗感染治疗有效,但不能根治。
血糖葡萄糖耐量试验
最新回复
(
0
)