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
2023-09-08
30
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/2996816.html
相关试题推荐
[originaltext]M:Well,Amina,thanksforlettingmehaveyourdraftinsuchgoo
[originaltext]M:IwashopingthatwewouldseeGeorgeheretoday.W:Hewaspla
[originaltext]M:IwashopingthatwewouldseeGeorgeheretoday.W:Hewaspla
[originaltext]M:IwashopingthatwewouldseeGeorgeheretoday.W:Hewaspla
[originaltext](33)TherearepeopleinItalywhocan’tstandsoccer.Notall
[originaltext](33)TherearepeopleinItalywhocan’tstandsoccer.Notall
[originaltext](33)TherearepeopleinItalywhocan’tstandsoccer.Notall
[originaltext](26)Scientistsclaimthatairpollutioncausesadeclinein
[originaltext](26)Scientistsclaimthatairpollutioncausesadeclinein
[originaltext](26)Scientistsclaimthatairpollutioncausesadeclinein
随机试题
Thewomanhasbeento______countries.[br][originaltext]M:Howmanydifferen
[originaltext]W:Dad,canIgotoamoviewithSharon?M:Yeah,sure,butwait.
苗族的三大方言指的是()A.黔东方言 B.湘黔方言 C.滇北方言 D.湘西
奥苏伯尔的有意义言语学习理论既依据学习结果,也依据学习过程和条件对学校进行分类,
关于联合体投标的说法,正确的有()。A、由同一专业的单位组成的联合体,按照资质等
蛋白质一级结构的主要化学键是A:二硫键 B:肽键 C:离子键 D:氢键
诊断糖尿病的标准是空腹血糖值不低于()。A.5.0mmol/L B.6.0mm
按照价格水平上涨幅度加以区分,通货膨胀包括()。A.温和的通货膨胀 B.飞奔的
李先生是一家两人合伙企业的合伙人,每人拥有企业50%的份额,合伙协议规定按照所
共用题干 某建筑公司与某医院签订了一份建设工程施工合同,明确承包方(建筑公司)
最新回复
(
0
)