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
50
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、the patterns of marriage have changed.
B、many deaf people have regained their hearing.
C、most of the original population has left the island.
D、the island has become famous for its research facilities.
答案
A
解析
短文最后说到,20世纪,岛上居民开始与岛外人通婚,耳聋率下降,即婚姻的模式发生了改变,故A为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3182995.html
相关试题推荐
WhichofthefollowingdescriptionsisCORRECT?[br][originaltext]Movinga
WhichofthefollowingdescriptionsisCORRECT?[originaltext]Movingawayfr
Whydothechangesinclimateoccur?[br][originaltext]TodayIwanttotal
Whydothechangesinclimateoccur?[br][originaltext]TodayIwanttotal
Whydothechangesinclimateoccur?[originaltext]TodayIwanttotalkabou
Whydidforeigninvestorswithdrawbillionsofdollarslastyear?[originaltext]
Whatisthenewsitemmainlyabout?[br][originaltext]ReportsfromSomalia
Whatisthenewsitemmainlyabout?[originaltext]ReportsfromSomaliasay(
WhatwasErikdoingwhenJanecalledhim?[br][originaltext]W:Wakeup,Erik,
WhatwasErikdoingwhenJanecalledhim?[br][originaltext]W:Wakeup,Erik,
随机试题
ThetwoclimbersdiedinPeruwhenthey______.[originaltext]Alarge,hangin
ProperstreetbehaviorintheUnitedStatesrequiresanicebalanceofatten
CaliforniaStateLawrequiresthatallbicycleridersunderage18wearprot
关于重力供液系统,下列说法正确的是()。A.重力供液系统主要适用于氟利昂制冷
()是在一定成本控制下,为保障IT服务的性能和可靠性,服务供方与客户间定义的一种
剥脱性龈病损应考虑A.天疱疮 B.红斑狼疮 C.扁平苔藓 D.类天疱疮
在国内经济衰退与国际收支盈余并存的情况下,政府应采取的应对政策是( )。[20
下列关于心输出量的叙述正确的是A:指两侧心室每分钟射出的血量 B:指一次心跳两
(2016年真题)在计算房地产投资项目静态开发成本时,不计算利息的费用是()。
一男性手术时曾输血800ml,1个月后出现恶心、呕吐、黄疽等症状,怀疑为输血后肝
最新回复
(
0
)