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
2023-07-18
31
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, there anaerobic bacteria could not survive in our environment. So we really don’t need to worry about these bacteria causing illness in people.
选项
A、The presence of life-forms far below the Earth’s surface.
B、The risk of infection from rare strains of bacteria.
C、Fictional representations of a hidden underground world.
D、The reliability of evidence collected by new drilling methods.
答案
A
解析
这段访谈谈论的主题是地表以下的细菌,与之意思相符有选项A。通常听力材料都会开宗明义,所以考生一定要注意听力材料的开头。
转载请注明原文地址:https://tihaiku.com/zcyy/2847316.html
相关试题推荐
[originaltext]Areyousometimesalittletiredandsleepyintheearlyafte
[originaltext]M:Hi.Uh,haven’twemetbefore?Youlooksofamiliar.W:Yeah.
[originaltext]M:Hi.Uh,haven’twemetbefore?Youlooksofamiliar.W:Yeah.
[originaltext]M:Hi.Uh,haven’twemetbefore?Youlooksofamiliar.W:Yeah.
[originaltext]M:Hi.Uh,haven’twemetbefore?Youlooksofamiliar.W:Yeah.
[originaltext]M:Hi,Donna,areyouinterestedingoingtoanartexhibitionon
[originaltext]M:Hi,Donna,areyouinterestedingoingtoanartexhibitionon
[originaltext]M:Hi,Donna,areyouinterestedingoingtoanartexhibitionon
[originaltext]M:Hi,Donna,areyouinterestedingoingtoanartexhibitionon
[originaltext]M:Hi,Donna,areyouinterestedingoingtoanartexhibitionon
随机试题
Shecanspeakfiveforeignlanguages.Manypeopleholdthatshehasan______for
Thisfeverwillreturnfromtimetotime,ifitfollowsitsusual______.A、patte
[originaltext]Hello,I’mCallumRobertsonandyou’relisteningtothemusic
与AIDS无关的实验室检测是A.病毒的分离培养 B.HIV抗体检测 C.T细
到期一次还本付息还款方式一般适用于期限在()年以内的贷款。A.10 B.
麦角生物碱类可用于治疗偏头痛,还可以用作A:鼻血管收缩药 B:肌肉震颤 C:
下边四个图形中,只有一个是由上边的四个图形拼合(只能通过上、下、左、右平移)而成
记账凭证的填制,除了应符合填制原始凭证的各项要求外,还应符合下列要求:(
幼儿园大班的东东在学校丢失了自己心爱的文具盒。放学后,大班的班主任李某将全班学生
某市政府拟采用通用技术建设一体育场,采用公开招标方式选择承包商。在资格预审后,
最新回复
(
0
)