首页
登录
职称英语
[originaltext]W: You’ve read an article about human bones. Are there any commen
[originaltext]W: You’ve read an article about human bones. Are there any commen
游客
2024-04-02
37
管理
问题
W: You’ve read an article about human bones. Are there any comments about it?
M: I was surprised to find out there was so much going on in bones. I always assumed they were pretty lifeless.
W: In fact, bones are made of dynamic living tissue that requires continuous maintenance and repair.
M: Right. That’s one of the things I found so fascinating about the article—the way the bones repair themselves.
W: Can you tell us how the bones repair themselves?
M: Sure. There are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produces the chemical that actually breaks down the bone tissue, and leaves a hole in it.
W: Well said, what about the second group?
M: After that the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group.
W: Very good. This is a very complex process. In fact, the scientists who study human bones don’t completely understand it yet. They are still trying to find out how it all actually works. Specifically, because sometimes after the first group of cells leaves a hole in the bone tissue, for some reason, the second group doesn’t completely fill in the hole. It can lead to a disease in which the bone becomes weak and is easily broken.
M: Ok, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue.[8] That’ll prevent the disease from ever occurring.
5 What are the two speakers mainly talking about?
6 What is the function of the first group of specialized cells?
7 What does the woman say about scientists who study the specialized cells in human bones?
8 What benefit will it bring if scientists find out what makes the specialized cells work?
选项
A、A way to prevent a bone disease.
B、An understanding between bone tissue and other tissue.
C、A way to understand how specialized bone cells have evolved.
D、A solution by creating artificial bone tissue.
答案
A
解析
对话末尾,男士提到,如果科学家们能够弄清楚特殊细胞的运作方式,也许能够找到方法确保第二个细胞群能够填满骨组织上的洞。这样就可以预防疾病发生。故选A。
转载请注明原文地址:http://tihaiku.com/zcyy/3538063.html
相关试题推荐
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
[originaltext]TodayI’dliketotalkaboutthesculptorHenryMoore,inpa
[originaltext]Let’sbegintodaybydiscussingenzymes.Enzymesarewhatma
[originaltext]Let’sbegintodaybydiscussingenzymes.Enzymesarewhatma
[originaltext]Inthe18thcenturyFrencheconomistsprotestedtheexcessive
[originaltext]Inthe18thcenturyFrencheconomistsprotestedtheexcessive
随机试题
GeorgeOrwell’s______isconsideredasananti-utopiannovel.A、AnimalFarmB、Ni
What’sthenameofthemagazine?It’s______.[br]Howmuchdoesthemagazinedo
Tocallsomething"marginal"meansitisnotverygood.Farmershavetheiro
千兆以太网标准802.3z定义了一种帧突发方式,这种方式是指( )。A.一个站
某自营出口的生产企业为增值税一般纳税人,出口货物征税率为17%,退税率为13%。
债券与股票的不同之处包括( ) Ⅰ.权利不同 Ⅱ.目的不同 Ⅲ.期限不同
属于“金”的音是A.角音 B.徵音 C.宫音 D.商音 E.羽
根据物权法的规定,下列有关抵押财产转让的说法,正确的是( )。 A.抵押人转
DBX公司是一家处于充分竞争领域的商业企业,该公司为了进行分析编制的管理用报表的
道路选线尽量( )。A.避开断层裂谷边坡 B.避开岩层倾角小于坡面倾角的顺向
最新回复
(
0
)