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
2023-08-17
42
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、It breaks down the bone tissue.
B、It produces the new tissue.
C、It fills in the bone holes.
D、It completely repairs the bones.
答案
A
解析
①从各选项可以推断问题问的是It的作用,It此处指的是第一个细胞群。②在谈论骨骼的两个不同的特殊细胞群时,女士指出第一个细胞群能够产生一种化学物质,破坏骨组织,并且在上面留下一个洞。故选A。
转载请注明原文地址:https://tihaiku.com/zcyy/2934103.html
相关试题推荐
Forthispart,youareallowed30minutestowriteanessaycommentingonthere
Forthispart,youareallowed30minutestowriteanessaycommentingonthere
Forthispart,youareallowed30minutestowriteanessaycommentingonthere
Forthispart,youareallowed30minutestowriteanessaycommentingonthere
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
随机试题
TourisminThailandIn1997therewe
Oldpeoplearealwayssayingthattheyoungpeoplearenot【C1】______theywer
Nobodyknows,______?A、doesnobodyB、doesoneC、doesheD、dotheyD反意疑问句用法题。反意疑
WhodidRosscallanytimehefelttheurgetosmoke?[img]2014m4s/ct_eyyjsdz201
CBSistreadingintopotentiallycontroversialrealityTVterritoryagain
A.乌梅B.石榴皮C.山茱萸D.肉豆蔻E.五味子治疗小儿遗尿症的药物是
下列建筑可不设室内消火栓系统的有()。A.建筑占地面积为350m2的厂房 B
某工程建设项目货物招标,有甲、乙、丙、丁、戊5家单位投标,由于某些原因,招标人通
胆囊切除时,下列哪项不是胆总管探査的指征? A.胆囊结石细小B.有胰腺
健康保险的几种费率厘定的方法的相同之处是都必须考虑( )因素。A.风险估测
最新回复
(
0
)