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
2024-04-23
5
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’tcompletely 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.[15] That’ll prevent the disease from ever occurring.
12. What are the two speakers mainly talking about?
13. What is the function of the first group of specialized cells?
14. What does the woman say about scientists who study the specialized cells in human bones?
15. What benefit will it bring if scientists find out what makes the specialized cells work?
选项
A、They have difficulty identifying these cells.
B、They aren’t sure how these cells work.
C、They’ve learned how to reproduce these cells.
D、They’ve found similar cells in other species.
答案
B
解析
女士说这种特殊细胞作用于人类骨骼的过程相当复杂,事实上,连研究人类骨骼的科学家都不能完全了解这个过程。 故选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3567616.html
相关试题推荐
[originaltext]Birthorderwithinfamilieshaslongsparkedsiblingrivalry,
[originaltext]Birthorderwithinfamilieshaslongsparkedsiblingrivalry,
[originaltext]Birthorderwithinfamilieshaslongsparkedsiblingrivalry,
[originaltext](20)Studentsseekingsuccessshouldlookformentorsamongr
[originaltext](20)Studentsseekingsuccessshouldlookformentorsamongr
[originaltext]Wherewechoosetolivecanhaveahugeimpactonourlife.L
[originaltext]Wherewechoosetolivecanhaveahugeimpactonourlife.L
[originaltext]M:Howdoyouthinkpeoplegettheirpersonalities?W:(12)Ithin
[originaltext]M:Howdoyouthinkpeoplegettheirpersonalities?W:(12)Ithin
[originaltext]W:So,tellmeaboutyournewhouse.Howisitdifferentfromyou
随机试题
WhatisthepercentageoftotaldeclineinvehiclesalesinAprilthisyear?[or
Hewasreadingexcitedlythebookpublishedbyhiscompanyin______withafamo
Whenitcomestousingtechnologytopromoteeducation,theprevailingwisdo
()是指通过一定的方法和流程将投入企业的资源转换为产品或服务的系统,包括投入、
某单位有负责网络、文秘以及后勤的三名办公人员:文珊、孔瑞和姚薇,为了培养年轻干部
缺牙间隙小,龈距离过低者可选用()A.塑料牙 B.瓷牙 C.烤瓷牙
关于乳剂在稳定性方面发生的变化,下述错误的是A.分层B.成盐C.絮凝D.转相E.
公民甲从兴华商场买了一瓶红星肉厂生产的熟食罐头,吃后中毒住院,共花去住院费等共计
(2019年真题)社会流动性按照用于支付的方便程度不同的分类不包括()。A.M
操作熟练的内在机制是在大脑皮层中建立了_________。
最新回复
(
0
)