首页
登录
职称英语
[originaltext]W: Today’s guest on "Science Update" is David Brown. Dr. Brown, y
[originaltext]W: Today’s guest on "Science Update" is David Brown. Dr. Brown, y
游客
2024-04-12
59
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. We’ve found a very special organism. Let’s call it Type-A bacterium. 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: These bacteria were adapted to an environment that’s completely different from humans’. That’s to say, they could not survive in our environment. So we really don’t need to worry about these bacteria causing illness in people.
1. What have Dr. Brown and his team discovered?
2. What helps to confirm the existence of bacteria below the Earth’s surface?
3. How deep down did the man find the bacteria?
4. Why does the man say there is no danger of infection by the bacteria brought to surface?
选项
A、Modern experiments.
B、Advanced technology.
C、Precise statistics.
D、Keen observation.
答案
B
解析
对话中,布朗博士提到,是科技帮了忙。尤其是钻孔技术突飞猛进,因此选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3552477.html
相关试题推荐
[originaltext]W:Youarelateagain!We’vebeenexpectingyouforanhour.For
[originaltext]W:Youarelateagain!We’vebeenexpectingyouforanhour.For
[originaltext]W:Youarelateagain!We’vebeenexpectingyouforanhour.For
[originaltext]Beforeanewairlinergoesintoservice,everypartofitis
[originaltext]Foryearsscientistshavebeenworriedabouttheeffectsofa
[originaltext]MySpace,thesocialnetworkingwebsite,isdifferentfromoth
[originaltext]MySpace,thesocialnetworkingwebsite,isdifferentfromoth
[originaltext]W:Hey,Sam!YoushouldtakealookatthisarticleaboutCanadia
[originaltext]W:Hey,Sam!YoushouldtakealookatthisarticleaboutCanadia
[originaltext]M:MathDepartment,DoctorWebsterspeaking.W:Hello,Prof.Webs
随机试题
Whereistheball?[br][originaltext]M:Whatcanyouseeinthepicture?F:I
WhatwillbetheKosovosituationinthenearfuture?[br][originaltext](
Starbucks’SecretIngredientHowyoucanincorporate
应用价值工程进行设计方案的优化过程是()。A.功能分析一功能比较一方案创新-
下列不属于狭义民法的是( )。A.物权法 B.商法 C.保险法 D.婚姻
建筑安装工程中的分部(分项)工程费不包括()。A.企业管理费 B.利润
A.1ml相当于0.2g饮片 B.1ml相当于0.1g饮片 C.1ml相当于
男,60岁。一年来右侧上后牙痛,疼痛多在傍晚发生,并涉及右眶下部和颞部。患者数年
关于单位定期存款的说法,错误的是()。A.整个存期内可以多次提前支取 B.不可
某新建项目,建设期2年,建设斯内贷款分年度均衡发放,且只计息不还款。第1年贷款
最新回复
(
0
)