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
2023-09-03
34
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 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
这段对话谈论的主题是地表以下的细菌,与之意思相符的只有选项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/2981813.html
相关试题推荐
[originaltext]RomehadtheForum.LondonhasSpeaker’sCorner.Nowalwayso
[originaltext]RomehadtheForum.LondonhasSpeaker’sCorner.Nowalwayso
[originaltext]Ifyoufeeltiredallthetime,youdon’tnecessarilyneedto
[originaltext]Ifyoufeeltiredallthetime,youdon’tnecessarilyneedto
[originaltext]M:Mum!W:Yes?What’sthematter?M:I’mwonderingifIshouldb
[originaltext]M:Mum!W:Yes?What’sthematter?M:I’mwonderingifIshouldb
[originaltext]M:Mum!W:Yes?What’sthematter?M:I’mwonderingifIshouldb
[originaltext]M:Mum!W:Yes?What’sthematter?M:I’mwonderingifIshouldb
[originaltext]RussellFazio,anOhioStatepsychologyprofessor,whohasst
[originaltext]RussellFazio,anOhioStatepsychologyprofessor,whohasst
随机试题
ThetwomajornationalpartiesinAmericaaretheDemocraticPartyandA、Conserva
IBMresearchersareattemptingtowarmuphuman-computerrelationships.For
[originaltext]W:Sam,couldyoureviewtheresultsofthesurveyonleisurespo
下列关于管理层次和管理幅度的表述中,正确的是( )。A.在管理对象和内容不变的
男性,62岁。20年来患胃溃疡,周期性发作,节律性疼痛,近3个月再犯,经8周内科
目前郑州商品交易所的上市品种包括( )等。A.黄金 B.菜粕 C.菜籽
下列关于耕地占用税的表述,正确的有( )。A.纳税人临时占用耕地,不需要缴纳耕地
物流企业在分析物流服务要素和制定物流服务水准的同时,应当考虑服务的差异化,这反映
宁德时代是国内著名的动力电池制造商。近年来,它频繁通过各子公司收购多家锂矿企业,
甲有一辆宝马牌X5型号的汽车要卖掉,乙欲购买,甲对乙说:“你先开回去试用一个月,
最新回复
(
0
)