首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、The surface of the ocean is expanding. B、Volcanic activity is increasing. C、The surface of the earth contains tons of cosmic d
A、The surface of the ocean is expanding. B、Volcanic activity is increasing. C、The surface of the earth contains tons of cosmic d
admin
2013-06-25
36
问题
M: How did you like yesterday’s astronomy class?
W: It was interesting, but the point she was trying to make seemed a little far-fetched.
M: Oh, that new theory that ocean water came from comets?
W: Yeah. Do you remember what it’s based on?
M: Some recent satellite photos, I think. Apparently, space satellites recently detected thousands of small comets colliding with the earth’s outer atmosphere, (19) almost 40,000 per day.
W: OK, so they collide with the atmosphere. Then that’s what created the water?
M: It’s not that the collision created water. Comets contain water. They are made up mostly of cosmic dust and water. When they collide with the atmosphere, they break up and the water they contain rains down to the earth. Ocean water came from that raia (20)
W: Oh, well, this morning, I asked my geology professor about that. He said that most geologists don’t accept it. (21)
M: Why not?
W: Well, their research indicates that most of the water molecules from the comets will have burnt up as they fell through the atmosphere. Enough rain couldn’t have reached the earth to fill up the ocean.
M: Well, do the geologists have an alternative theory to explain where ocean water came from?
W: Yeah, he said the more traditional view is that ocean water came from volcanoes.
M: From volcanoes?
W: Right! As the volcanic fumes are mostly steam. And they claim that it was volcanic steam that created the oceans, not rain from comets.
19. What did recent photographs from a space satellite indicate?
20. According to the new theory, where did ocean water come from?
21. What group disagrees with the new theory described in the conversation?
选项
A、The surface of the ocean is expanding.
B、Volcanic activity is increasing.
C、The surface of the earth contains tons of cosmic dust.
D、Thousands of comets are colliding with the earth’s atmosphere.
答案
D
解析
细节题。浏览选项可知,四个选项各叙述了一种情况,应该是考查细节。对话中提到最近通过卫星拍摄的照片显示thousands of small comets colliding with the earth’s outer atmosphere(数以千计的小彗星撞击地球大气层),故答案选D。
转载请注明原文地址:https://kaotiyun.com/show/ERn7777K
0
大学英语六级
相关试题推荐
A、Shelivesbetweenthecountrysideandherschool.B、Thecountrysideistoofarfromthecity.C、Thiswasthefirsttimeshewe
A、Meetingwithhisprofessors.B、Doingextraworkinthechemistrylab.C、Writingpapersforhisclasses.D、Workingovertimeas
A、Decideforhimselfwhatisbest.B、Communicatehiscareerhopes.C、Stophinderinghisownprogress.D、Lookforanothercareer.
A、Itincreasedthestudents’whitebloodcellcount.B、Itincreasedsomestudents’energylevel.C、Itimprovedthestudents’abi
Manlivesincommunities.Hissocialexistencerestrictshis【B1】______incertaindirectionsandextendsitinothers.Society【B
A、It’salowimpactactivityandnoonewantstodoit.B、Ithelpsuspractisethesamelargemusclegrouprhythmically.C、It’s
Thefirsttwostagesinthedevelopmentofcivilizedmanwereprobablytheinventionofprimitiveweaponsandthediscoveryoff
Televisioneatsoutoursubstance.Mandercallsthisthemediationofexperience."WithTVwhatwesee,hear,touch,smell,fee
Whatproducesawaterproofsuperglue,actslikeavacuumcleaner,andeventeachesscientistsaboutgenerepair?Thehumblelit
随机试题
设则点x=0是g(f(x))的
下列药物既有降血糖作用,又有抗利尿作用的是
在tRNA二级结构的TΨ环中Ψ(假尿苷)的糖苷键是
资料一:中华人民共和国海关进口货物报关单预录入编号:海关编号:请根据以上资料,选择以下栏目正确选项:
某公司4月10日以每张110元的价格购入债券600张,其中含应收利息1200元。7月1日收到利息,共1800元。8月20日出售此债券,共收到67000元,存入银行。则转让时的投资收益为()。
灵运以疾东归,而游娱宴集,以夜续昼,复为御史中丞傅隆所奏,坐以免官。是岁,元嘉五年。灵运既东还,与族弟惠连、东海何长瑜、颍川荀雍、泰山羊蝽之,以文章赏会,共为山泽之游,时人谓之四友。惠连幼有才悟,而轻薄不为父方明所知。灵运去永嘉还始宁,时方明为会
根据以下资料,回答116-120题。2009年1-4月我国完成城镇固定资产投资为37082.30亿元,比去年同期增长30.5%,其中第一产业比去年同期增长82.1%,投资比重见下图。2009年1-4月我国完成的城镇固定资产投资项目中,地方项
阅读下列资料,回答问题。2013年我国车辆和驾驶人保持快速增长,至2013年年底,全国机动车数量突破2.5亿辆,全国机动车驾驶人数量近2.8亿人。其中,我国汽车保有量达1.37亿辆,是2003年汽车保有量的5.7倍,扣除报废量,全年增加1651
视敏度一般可以分成()。
Itisgenerallybelievedthatteachingis______itisascience.
最新回复
(
0
)