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
2023-08-18
20
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、Organisms far below the Earth’s surface.
B、New drilling methods.
C、A hidden underground world.
D、Rare and infectious bacteria.
答案
A
解析
通常情况下,长对话都会开宗明义,所以考生一定要注意听力材料的开头句。从对话的开头句可知布朗博士和他的团队在地底下发现了细菌,细菌也是生物的一种,故选A。
转载请注明原文地址:https://www.tihaiku.com/zcyy/2936216.html
相关试题推荐
[originaltext]M:Billhasonlybeenonthejobaweek,andalreadyhe’sactingl
[originaltext]W:I’mreallyexhausted!ButIdon’twanttomissthatdocumentary
[originaltext]W:I’mreallyexhausted!ButIdon’twanttomissthatdocumentary
[originaltext]W:I’mreallyexhausted!ButIdon’twanttomissthatdocumentary
[originaltext]W:I’mreallyexhausted!ButIdon’twanttomissthatdocumentary
[originaltext]W:I’mreallyexhausted!ButIdon’twanttomissthatdocumentary
[originaltext]W:I’mreallyexhausted!ButIdon’twanttomissthatdocumentary
[originaltext]SekouCoumbassaisadiplomatwhorepresentsoneofthenewA
[originaltext]WhenJohnandVictoriaChurcharrivedinNewYorkfromLondon
[originaltext]WhenJohnandVictoriaChurcharrivedinNewYorkfromLondon
随机试题
PartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,y
2011年进行的建筑学学科调整将原建筑学一级学科一分为三,拆分后的三个一级学科分
交通运输邮电业统计采取全面调查的方式,分别由各有关业务主管部门负责收集资料。(
A.益母草膏B.金银花露C.脂肪乳D.血浆代用液E.炉甘石洗剂属于胶体溶液型的是
列宁说:“文盲是处在政治之外的.”这说明( ) A.公民的政治权利是受教育程
肾上腺皮质功能低下时可出现 A.血容量减少B.血浆Na+浓度升高 C.血浆
对于个人汽车贷款信用风险的内容说法错误的是( )。A.所谓还款能力是指借款人及
区别不同税种的重要标志是()。A、税目 B、计税依据 C、纳税环节 D、征
下列工序质量控制的方法,属于工序质量预控的有( )。A.工序分析 B.质量控
投资的计划值和实际值是相对的,相对于工程预算而言,()是投资的计划值。A.合同价
最新回复
(
0
)