首页
登录
职称英语
[originaltext]W: Today’ s guest on "Science Update" is David Brown. Dr. Brown,
[originaltext]W: Today’ s guest on "Science Update" is David Brown. Dr. Brown,
游客
2024-05-14
51
管理
问题
W: Today’ s guest on "Science Update" is David Brown. Dr. Brown, you and your team have found bacteria far below the Earth’ s surface. You must be thrilled about your discovery.
M: Well, yes, it’ s very exciting. For a long time, we’ d suspected the presence of such organisms, but we lacked substantial evidence.
W: How did you confirm the existence of the bacteria?
M: Well, technology helped. Our drilling techniques have improved significantly, and so the risk that surface bacteria could be mistaken for those found at much greater depth was reduced. With the new techniques, we could get much deeper into the Earth.
W: How far down did you actually get?
M: In one case, about three kilometers. We were surprised, I must tell you, that there were organisms that far down.
W: You know, it sounds like fiction, something like a lost world.
M: Let’ s call it a hidden biosphere, and it’ s probably a very extensive one. The mass of the living organisms below the surface may be equal in size to the mass of the surface bacteria.
W: Have you found any unique life-forms?
M: Yes. One of the organisms is the first anaerobic bacillus ever discovered. That means it can live and grow only where there is no oxygen.
W: Is there any danger of these bacteria infecting people when you bring them to the surface?
M: The bacteria in question were adapted to an environment that’ s hostile and alien to humans. Conversely, these anaerobic bacteria could not survive in our environment. So we really don’ t need to worry about these bacteria causing illnesses in people.
选项
A、The bacteria would be killed by the human immune system.
B、The bacteria would die if brought to the surface.
C、Many antidotes and remedies are available.
D、Drilling operations are always closely monitored.
答案
B
解析
“anaerobic bacillus”是指“厌氧性细菌”,这是一个生僻词组,考生不知道的可能性很大。但M随后又对它进行了解释,指出这种细菌只能生存在没有氧气的地方,可见,它不可能给人类造成任何感染,因为它不能与人类共存在一个环境里,与之意思相近的只有选项B
转载请注明原文地址:https://tihaiku.com/zcyy/3598081.html
相关试题推荐
[originaltext]Oneofthemaincomplaintsofcityresidents,notsurprisingl
[originaltext]Oneofthemaincomplaintsofcityresidents,notsurprisingl
[originaltext]WelcometotheCollegeLibraryservice.Wehaveawell-stock
[originaltext]Youshouldnotfearspidersbecauseoftheirpoison.Ofallt
[originaltext]W:Today’sgueston"ScienceUpdate"isDavidBrown.Dr.Brown,
[originaltext]W:Today’sgueston"ScienceUpdate"isDavidBrown.Dr.Brown,
[originaltext]W:Today’sgueston"ScienceUpdate"isDavidBrown.Dr.Brown,
[originaltext]W:NewYorkisafascinatingplaceandithasanotherinteresting
[originaltext]W:NewYorkisafascinatingplaceandithasanotherinteresting
[originaltext]W:NewYorkisafascinatingplaceandithasanotherinteresting
随机试题
Althoughyoumaynot______(success)inthebeginning,youshouldstillgoontryi
I’msurealmosteveryoneofyoulookedatyourwatchorataclockbeforey
Scienceofsetbacks:Howfailurecanimpr
下列选项中,属于管理费用的有()。
设备测试报告显示的示值误差的测量不确定度不符合要求时,设备可以评定为符合性不合格
商业银行应按照( )计提贷款损失准备金,并在成本中列支。A.预期收益 B.逾
合同当事人约定承包单位垫资30%施工,并约定了利息,承包单位完成了约定的工程量后
(2018年)用J2经纬仪观测某方向的垂直角,盘左读数为89°59′
扩张型心肌病患者早期最主要的临床表现是A.活动时呼吸困难和活动耐量下降 B.室
中国金融期货交易所是一家以营利为目的的公司制期货交易所。( )
最新回复
(
0
)