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
2023-08-17
35
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、The effects of hot weather on animals.
B、How animals survive in extreme temperatures.
C、How changes in location affected dinosaurs.
D、The differences between warm-blooded and cold-blooded animals.
答案
D
解析
由“I need to review somethingwe studied last semester:the difference betweenwhat we commonly called cold-blooded andwarm—blooded animals.”可知这篇讲话主要讲的是恒温动物和变温动物的差异。
转载请注明原文地址:https://tihaiku.com/zcyy/2934852.html
相关试题推荐
[originaltext]Thisroomisdevotedtoelectricfish.Theeelinthetankbe
[originaltext]WelcometotheNewBedfordinstitute’s,seriesoflectureson
[originaltext]WelcometotheNewBedfordinstitute’s,seriesoflectureson
[originaltext](16)I’msurealmosteveryoneofyoulookedatyourwatchor
[originaltext](16)I’msurealmosteveryoneofyoulookedatyourwatchor
[originaltext](16)I’msurealmosteveryoneofyoulookedatyourwatchor
[originaltext]Manystudieshavebeenmaderecentlyabouthandpreferencein
[originaltext]Manystudieshavebeenmaderecentlyabouthandpreferencein
[originaltext](9)Ourelectriccaristhewayofthefuture.Automobileman
[originaltext]W:WelcometoBSCCinema.Wouldyouliketopurchaseamovietick
随机试题
[originaltext]Jetlag,causedbytravelingbetweentimezones,isbecoming
矫治器性能的基本要求包括A.矫治器对口腔硬软组织及颌面部无损害,不与唾液起化学反
以下是某年全国资金流量表部分资料: 请根据以上资料进行计算和分析
中央领导集体参观《复兴之路》展览的过程中,习近平主席发表讲话指出,历史告诉我们,
Ⅳ型高脂蛋白血症A.LDL增加B.VLDL增加C.IDL增加D.CM增加E.血清
Thechangeinthatvillagewasmiraculou
在职工素质提升方面,社会工作服务包括()。A.教育和引导职工自我权利意识提升
依照唐律的规定,因“耳目所不及,思虑所不至”而杀人是()A.误杀 B.过失杀
妇女月经后期,经色紫暗,伴少腹冷痛,畏寒肢冷,属A.气滞血瘀证 B.血寒证
对石灰、粉煤灰类基层中的粉煤灰,准确的要求是()。A.粉煤灰的总量宜大于7
最新回复
(
0
)