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
2023-08-21
57
管理
问题
Before I tell you about the interesting discovery related to Tyrannosaurus rex, I need to review something we studied last semester—the difference between what are commonly called cold-blooded and warm-blooded animals. In warm-blooded animals, birds and mammals, for example, 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 its body temperature can adjust to the temperature of its environment.
On the other hand, cold-blooded 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 distinction is clear. Now, moving on to Tyrannosaurus rex, you may know that dinosaurs, being reptiles, are generally believed to have been cold-blooded. Well, a recent research study found that the chemical composition of the bones of Tyrannosaurus rex was consistent with the bones of an animal that has a very narrow range of internal temperature, indication that it was probably warm-blooded.
6. What is the main topic of the lecture?
7. What is likely to happen to cold-blooded animals when the weather is cold?
8. 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
Tyrannosaurus rex(暴龙)是一个生僻词,考生虽然很可能不知道它的意思,但是可以根据吾境判断它是一种恐龙(dinosaurs)。事实上,即使考生不知道它是一种恐龙,只要听到了最后一句话“it was probably warm—blooded”,也可以选择出正确答案。
转载请注明原文地址:http://tihaiku.com/zcyy/2944508.html
相关试题推荐
Before1965manyscientistspicturedthecirculationoftheocean’swaterma
Before1965manyscientistspicturedthecirculationoftheocean’swaterma
Before1965manyscientistspicturedthecirculationoftheocean’swaterma
[originaltext]AmericanvisitorstoEasternAsiaareoftensurprisedandpuz
[originaltext]AmericanvisitorstoEasternAsiaareoftensurprisedandpuz
[originaltext]Thefamilyischanging.Inthepast,grandparents,parents,a
[originaltext]Thefamilyischanging.Inthepast,grandparents,parents,a
[originaltext]M:I’msotired,Ican’tseestraight.W:You’vebeentiredalot
[originaltext]W:Haveyouevervisitedaredwoodforest?Irecentlyhadachanc
[originaltext]W:Haveyouevervisitedaredwoodforest?Irecentlyhadachanc
随机试题
【B1】[br]【B15】A、veryB、bigC、sameD、narrowC
Afewyearsagoitwas【B1】______tospeakofagenerationgap,adivisionbe
We________donebetterundermorefavorableconditions.A、couldhaveB、hadC、must
某公司年初流动比率为2.1,速动比率为0.9,当年期末流动比率变为1.8,速动比
配制2%盐酸麻黄碱溶液200ml,用氯化钠调节等渗,所需氯化钠的量为A.0.28
关于风险与回报的分析,正确的是()。A.在债务无风险条件下,风险溢价与杠杆
2022年3月1日下午,国际残奥委会主席安德鲁·帕森斯为北京2022年冬残奥会壁
波特认为有5种力量决定了行业竞争程度和吸引力。这5个种力量来自()。A.行
幼儿思维的主要特征是()。A.直观动作思维 B.形象逻辑思维 C.抽象逻辑思
慢性腹泻A.病程 B.病程2周~2个月 C.病程2周~6个月 D.病程>2
最新回复
(
0
)