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
1
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、It was larger than other dinosaurs.
B、It was older than originally thought.
C、The composition of its bones confirmed earlier findings.
D、It was probably warm-blooded.
答案
D
解析
由“Well,a recent research studyhas found that a chemical composition of thebone of the tyrannosaurus rex was consistentwith the bone of the animal that has a very nar—row range of the internal temperature,indica—ting that it was probably warm—blooded.”可知最近的研究发现雷克斯霸王龙可能是恒温动物。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3551114.html
相关试题推荐
[originaltext](23)Competitivevideogaming—knownase-sports—shouldbein
[originaltext](23)Competitivevideogaming—knownase-sports—shouldbein
[originaltext]ItisbarelyhalfacenturysincepartsoftheThameswerede
[originaltext]ItisbarelyhalfacenturysincepartsoftheThameswerede
[originaltext]W:Jackie,youlookfantastic.Isityogathathelpsyourecover
[originaltext]W:Jackie,youlookfantastic.Isityogathathelpsyourecover
[originaltext]W:Jackie,youlookfantastic.Isityogathathelpsyourecover
[originaltext]M:Lerato,IheardthatyouarefromSouthAfrica.WhatpartofS
[originaltext]M:Lerato,IheardthatyouarefromSouthAfrica.WhatpartofS
[originaltext]M:Ms.Lincoln,I’myourtenant,Joe.Ican’tgetconnectedonlin
随机试题
Foxesandfarmershavenevergotonwell.Thesesmalldog-likeanimalshave
It’sclearthatsocialmedialikeTwitterandFacebookarechangingtheway
水泥混凝土路面结构设计以面层板在设计基准期内,在行车荷载和温度梯度综合作用下,不
患者,男性,50岁。头痛2周行头颅CT检查发现左小脑及左顶叶两处占位性病变,不除
下列消毒剂中属于高效消毒剂的是( )A.碘酊 B.碘伏 C.75%乙醇
药品广告的审批机关是A.省级药品监督管理部门 B.省级工商行政管理部门 C.
下列属于影响健康传播效果的社会环境因素的选项是A.环境布置 B.传播活动地点、
对新的培训方式进行效果评估,则评估的侧重点在于()A:课程组织 B:培训教材
发行人因再次申请发行证券另行聘请保荐机构、保荐机构被中国证监会撤销保荐资格的,应
交、直流电源盘柜安装时,成列盘、柜面不平度允许偏差为()mm。A.1 B.1
最新回复
(
0
)