首页
登录
职称英语
[originaltext] Good morning students. This class I brought two books that I
[originaltext] Good morning students. This class I brought two books that I
游客
2024-05-31
7
管理
问题
Good morning students. This class I brought two books that I had been reading. I want to introduce them to you because I hope you have been able m read the two hooks. They are about speech and hearing problems that I put in the library. (26) Today’s lecture deals with the presence of the unusually large deaf population that had existed on the Massachusetts island of Martha’s Vineyard for about three centuries. From the settlement of the island in the 1640s to the 20th 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 patterns for the inheritance of deafness. Indeed in the lair: 1800s, one out of every twenty-five people in one village on the island was born deaf and the island as a whole had a deafness rate at least seventeen times greater than that of the rest of the United Status. (27) 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 and inheritance were still unknown, he was not able to explain the patterns of deafness and why a deaf parent did not always have deaf children. (28) In the 20th 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 have left the island.
D、The island has become famous for its research facilities.
答案
A
解析
综合理解题 。文章最后提到在20世纪该岛的现状,the local population has mixed with people off the island and the rate of deafness has fallen,以前的婚姻模式已经得到了改变,由此deafness的数量也减少了,正确答案选A项。
转载请注明原文地址:https://tihaiku.com/zcyy/3613082.html
相关试题推荐
[originaltext]Mostpeopleareconvincedthatthecreativepersonissomeone
[originaltext]W:Well,thelibraryistocloseinafewminutes.Nowit’susual
[originaltext]W:Well,thelibraryistocloseinafewminutes.Nowit’susual
[originaltext]W:Well,thelibraryistocloseinafewminutes.Nowit’susual
[originaltext]W:Johnsonpassedphysicseventhoughhehardlydidanywork.M:
[originaltext]W:Johnsonpassedphysicseventhoughhehardlydidanywork.M:
[originaltext]W:Johnsonpassedphysicseventhoughhehardlydidanywork.M:
[originaltext]W:Johnsonpassedphysicseventhoughhehardlydidanywork.M:
OnthemorningofMay9,1927,CharlesA.Lindberaghtookofffromamuddyai
OnthemorningofMay9,1927,CharlesA.Lindberaghtookofffromamuddyai
随机试题
IcametoAfricawithonepurpose:Iwantedtoseetheworldoutsidethepe
OfficialssaywaterlevelsalongtheBrahmaputraRiverstillareatdangerousle
[originaltext]M:Whatdoyouthinkaretheprospectsforon-lineeducation?Is
凡与可燃物质相结合能导致和支持燃烧的物质称为()。A.助燃物 B.可燃物
A.卵巢肿瘤 B.外阴瘙痒 C.慢性宫颈炎 D.宫颈癌 E.前置胎盘阴道
智能变电站一体化监控系统与调控中心信息传输的内容中,以下通过Ⅱ区数据通信网关机传
我国的共青团、妇女联合会、工会、红十字会等属于()。A.政府部门 B.群众团体
下列情形中不属于共同犯罪的有( )。 A.张三与李四相约到商场抢劫首饰,但李
A. B. C. D. E.作两个大样本均数的比较时用
法洛四联症,对病理生理影响最大的畸形是A.室间隔缺损 B.肺动脉狭窄 C.右
最新回复
(
0
)