首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
When he dies in April of 1983, Dr. Joel Hildebrand was 101 years old, who had been married for seventy-five years, and had taugh
When he dies in April of 1983, Dr. Joel Hildebrand was 101 years old, who had been married for seventy-five years, and had taugh
admin
2010-06-30
72
问题
When he dies in April of 1983, Dr. Joel Hildebrand was 101 years old, who had been married for seventy-five years, and had taught freshman chemistry to over 40 000 college students. For his life, he had published a popular chemistry textbook and dozens of articles, had managed the U. S. Olympic ski team, and discovered a way to allow deep-sea divers to stay underwater longer. In his own way, Dr. Hildebrand was certainly a genius.
Dr. Hildebrand’s interest in chemistry began at an early age. In an interview, he once said that hi interest had been formed because he was fortunate enough to be born before there was television, so he had to make his own decisions about what to pay attention to. Even as a student in high school. Dr. Hildebrand had the reputation as the one who learned more chemistry than his teacher knew. As a result he was given the keys to the high school chemistry lab. And there he discovered that the correct formula for a certain chemical compound was not the one given in his chemistry book but a totally different one. Dr. Hildebrand went on to teach at the university of California at Berkeley and remained there for almost forty years.
During that time, Dr. Hildebrand discovered that the gas helium (氦) could be combined with oxygen for use as diving gas to allow divers to dive deeper and take the great pressure of the water without the physical discomforts that had been experienced when they used another gas, nitrogen. The use of helium for deep-see diving is now standard practice. Dr. Hildebrand was also valuable to his country during both world wars. In World War I he analyzed the poisonous gases used on the battlefield and helped develop a truck that could clean and treat soldiers’ clothes which had been contaminated by poisonous gases during fighting. In World War II he helped develop a type of snowmobile, a vehicle used to carry soldiers through the snow in northern countries.
Dr. Hildebrand’s retirement from teaching at the age of seventy was required by state law in California. He objected to this, joking that he thought a teacher’s time of retirement ought to be determined not by age but by how many of that teacher’s students were still awake after the first fifteen minutes of class!
Dr. Hildebrand’s writing career continued, however, and was still feeling strong at the age of 100, when he published an article on the theory of chemical solutions. Dr. Hildebrand’s love of life and his interest in it were an inspiration to all who knew him. When asked once how he could have such ageless energy and vigor, he said, "I chose my ancestors carefully."
What distinguished Dr. J. Hildebrand from other students in high school?
选项
A、His rich knowledge in chemistry.
B、His discovery of the formula for some chemical compound.
C、His being given the key to the chemistry lab.
D、His strong interest in chemistry from the very childhood.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/9LJd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Youhavereadanarticleinamagazinewhichstates,"TheInternethasnowbecomeanimportantlearningtoolforchildren,expo
Youmaysaythatthebusinessofmarkingbooksisgoingtoslowdownyourreading.【C1】______probablywill.That’soneofthe【C2
Youmaysaythatthebusinessofmarkingbooksisgoingtoslowdownyourreading.【C1】______probablywill.That’soneofthe【C2
In1935,MaryKaygotmarriedforthefirsttime.MaryKayworkedforMr.Heathin1963.
In1935,MaryKaygotmarriedforthefirsttime.BenRogers,MaryKay’sfirsthusband,diedinWorldWarII.
WhenhediesinAprilof1983,Dr.JoelHildebrandwas101yearsold,whohadbeenmarriedforseventy-fiveyears,andhadtaugh
WhenhediesinAprilof1983,Dr.JoelHildebrandwas101yearsold,whohadbeenmarriedforseventy-fiveyears,andhadtaugh
WhenhediesinAprilof1983,Dr.JoelHildebrandwas101yearsold,whohadbeenmarriedforseventy-fiveyears,andhadtaugh
随机试题
简述生态因子的作用规律。
A.藿香正气散B.半夏厚朴汤合左金丸C.保和丸D.良附丸E.黄芪建中汤饮食停滞呕吐应选用()
经纪人受他人委托以自己的名义代他人购物、从事贸易活动或寄送物品,并取得报酬的法律行为,称为()。
经检验检疫合格的出境货物,应当在《出境货物通关单》规定的期限内报关出口,超过期限的,应重新报检。 ( )
对外贸易合同,协议规定以检验检疫证书为交接,结算依据的进出境货物,报检人应向检验检疫机构报检。 ( )
根据交易合约的签订与实际交割之间的关系,市场交易的组织形态可以划分为()。
下列资产分类或转换的会计处理中,符合会计准则规定的有()。(201.5年改编)
以下选项中,()人民代表大会代表由选民直接选举。
在正偏态分布中,下列各数值最大的是
ISTHEREANYBODYOUTTHERE?TheSearchforExtra-terrestrialIntelligenceThequestionofwhetherweareal
最新回复
(
0
)