首页
登录
职称英语
[originaltext] Before I tell you about the interesting discovery related to
[originaltext] Before I tell you about the interesting discovery related to
游客
2024-04-11
13
管理
问题
Before I tell you about the interesting discovery related to the tyrannosaurus rex,(23)I need to review something we studied last semester: the differences between what we commonly called cold-blooded and warm-blooded animals. In warmblooded animals, birds and mammals for examples, the body temperature normally stays within a narrow range no matter what the outside temperature is. As a result, a warm-blooded animal is usually active in both cold and hot weather because the body temperature can adjust to the temperature as in the environment.(24)On the other hand, coldblooded animals, such as most reptiles, amphibians and insects, are unable to create enough heat internally to raise their temperature above the temperature of the environment. So, for example, the temperature of a cold-blooded animal falls when the environment is cool. I hope this extension is clear. Now moving on to the tyrannosaurus rex, you may know that dinosaurs being reptiles are generally believed to have been cold-blooded.(25)Well, a recent research study has found that a chemical composition of the bone of the tyrannosaurus rex was consistent with the bone of the animal that has a very narrow range of the internal temperature, indicating that it was probably warm-blooded.
23. What is the main topic of the lecture?
24. What is likely to happen to cold-blooded animals when the weather is cold?
25. Why does the speaker discuss tyrannosaurus rex?
选项
A、Their ability to survive is diminished.
B、Their body temperature goes down.
C、Their ability to digest food improves.
D、Their level of energy and activity increases.
答案
B
解析
由“On the other hand,cold—blooded animals,such as most reptiles,am—phibians and insects,are unable to createenough heat internally to raise their temperatureabove the temperature of the environment.So,for example,the temperature of a cold—bloodedanimal falls when the environment is cool.”可知在寒冷的环境下变温动物自身的温度会下降。
转载请注明原文地址:https://tihaiku.com/zcyy/3551113.html
相关试题推荐
[originaltext]Today,I’mgoingtotalkaboutthehealthproblemsrelatedto
[originaltext]Today,I’mgoingtotalkaboutthehealthproblemsrelatedto
[originaltext]Theterm"Americandream"iswidelyusedtoday.Butwhatexac
[originaltext]Psychologistshavemanytheoriestoexplainhowwerememberi
[originaltext]Kuwaitisacountrywhichisquitesmall,butwhichisveryr
[originaltext]Mostdoctorshavelongbelievedthatreducingsaltcandecrea
[originaltext]Mostdoctorshavelongbelievedthatreducingsaltcandecrea
[originaltext]Mostdoctorshavelongbelievedthatreducingsaltcandecrea
[originaltext]M:Interestinglecturetoday,didn’tyouthink?W:Well,Isuppos
[originaltext]M:Interestinglecturetoday,didn’tyouthink?W:Well,Isuppos
随机试题
Thewordconservationhasathriftymeaning.Toconserveistosaveandprote
Awalkwithyourspousegivesyouachancetotalkovertheday.Butthat’s
BorninNorthCarolinain1862,WilliamSidneyPorter,thismasterofshort
关于急性淋巴细胞白血病血象的描述不正确的是A.白细胞可减少或正常,但常明显增高
石渠县是四川境内日照最多的地方,有“小太阳城”之称。
桥梁高墩施工宜采用的模板有()。A、整体模板 B、翻转模板 C、爬升模
人参药材的形成层呈A.环状B.类方形C.多角形D.波状环纹E.不规则状
镜下血尿指1小时尿液红细胞计数超过()。A.5万 B.10万 C.15万
根据《标准设计施工总承包合同》,工程实施中应给予承包人延长工期、增加费用并支付合
女性,30岁,乏力、食欲减退、咳嗽1个月,低热、盗汗1周,胸片示右肺上叶尖段片
最新回复
(
0
)