首页
登录
职称英语
What is unusual about the island of Martha’s Vineyard? [br] [originaltext] G
What is unusual about the island of Martha’s Vineyard? [br] [originaltext] G
游客
2023-11-13
12
管理
问题
What is unusual about the island of Martha’s Vineyard? [br]
Good morning. students. I hope you have been able to read the books about speech and hearing problems that I put in the list. [14]Today’s lecture deals with the presence of the unusually large deaf population that existed on the Massachusetts island of Martha’s Vineyard for about three centuries. From the settlement of the island in the 1640’s to the twentieth century, the people there,who were descended from only twenty-five or thirty original families, married mainly other residents of the island. They formed a highly inbred group, producing an excellent example of the genetic pattern for the inheritance of deafness. Indeed in the late eighteen hundreds one out of every twenty-five people in one village on the island was born deaf, and [15]the island as a whole had a deafness rate at least seventeen times greater than that of the rest of the United States. [16]Even Alexander Graham Bell, the inventor of the telephone and a prominent researcher into hearing loss, visited Martha’s Vineyard to study the population. But because the principles of genetics were still unknown, he was not able to explain the pattern of deafness and why a deaf parent did not always have deaf children. [17]In the twentieth century, the local population has mixed with people off the island and the rate of deafness has fallen.
选项
A、establish his laboratory.
B、have a vacation.
C、visit members of his family.
D、study deafness among the families.
答案
D
解析
短文提到,Alexander Graham Bell是电话的发明者以及一名出色的耳聋研究者,他访问了Martha’s Vineyard岛以研究那里的人口,由此可知他的目的是D。
转载请注明原文地址:https://tihaiku.com/zcyy/3182994.html
相关试题推荐
Whatistheconversationmainlyabout?[originaltext]W:HeySteve,gotanyplans
WhydidthewomangotoHongKong?[originaltext]M:Hi,Maggie!Haven’tseenyou
Theplanneddevelopmentofthedesertedislandfilledtheislanderswith______
WhatledtothefailureofNASA’smission?[originaltext]NASA’sfirstdedica
WheredidCindygetherinformationabout"smart"cars?[br][originaltext]M:I
Wheredoestheconversationtakeplace?[br][originaltext]M:Hi,Linda.W:Hi,
Wheredoestheconversationtakeplace?[br][originaltext]M:Hi,Linda.W:Hi,
PaulWolfowitzhasbeeninvolvedina______.[originaltext]Thekeycommitt
Mr.WarrenChristopher[br][originaltext]SecretaryofStateWarrenChrist
Mr.WarrenChristopher[originaltext]SecretaryofStateWarrenChristopher
随机试题
WhatisAnthonyHorowitzfamousfor?[originaltext]ThecharacterofSherlockHol
D解:可利用函数在一点x0可导的定义,通过计算得到最后结果。
1950年10月,党中央作出了抗美援朝、保家卫国的战略决策,毛泽东主席签署命令,
某建设公司于2015年2月份召开了公司职工代表大会,在大会上企业董事长张某对公司
A.萆薢渗湿汤 B.知柏地黄汤 C.消风散 D.丹栀逍遥散 E.托里消毒
因材施教就是承认差别,设法在( )基础上对学生实施帮助。A.一对一 B.一对
上述图示药材为细辛的是
在机械行业,主要危险和危害包括物体打击、车辆伤害、机械伤害、起重伤害、触电、灼烫
关于新生儿保健要点,错误的是( )。A.注意保暖 B.对于3个月后婴儿应告诉
在血浆内含有的下列物质中,肝脏不能合成的是A.白蛋白 B.免疫球蛋白 C.凝
最新回复
(
0
)