首页
登录
职称英语
[originaltext]M: How did you like yesterday’s astronomy class?W: It was intere
[originaltext]M: How did you like yesterday’s astronomy class?W: It was intere
游客
2023-07-24
97
管理
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 was based on’?
M: Some recent satellite photos, I think. Apparently, Space satellites recently detected thousands of small comets colliding with earth’s outer atmosphere, almost 40,000 per day.
W: OK, they’re collided with atmosphere. So that’s what created the water?
M: It’s not the collision that created water. Comets contain water. They’re 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 earth. Ocean water came from that rain.
W: Oh well, this morning I asked my geology professor about that. He said that most geologists don’t accept it.
M: Why not?
W: Special research indicates that most of the water molecules from the comet would have burned up as they fell through the atmosphere. Enough rain couldn’t have reached the earth to fill up the ocean.
M: Well, did the geologists have an alternative theory to explain where ocean water came from?
W: Yeah, he said the more traditional view is that the ocean water came from volcanoes.
M: From volcanoes?
W: Right. They say volcanic fumes are mostly steam. And they claimed that it was the volcanic steam that created the oceans, not rain from comets.
选项
A、The surface of the ocean is expanding.
B、Volcanic activity is increasing.
C、The surface of earth contains tons of cosmic dust.
D、Thousands of comets arc colliding with earth’s atmosphere.
答案
D
解析
信息明示题。男士说海水来源的新理论是基于最近人造卫星所拍摄的照片的,宇宙人造卫星最近探测到,每天有将近四万颗小彗星与地球外层大气相碰撞,故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/2865083.html
相关试题推荐
[originaltext]Untilthetwentiethcenturycigaretteswerenotanimportant
[originaltext]Untilthetwentiethcenturycigaretteswerenotanimportant
[originaltext]Technically,anysubstanceotherthanfoodthataltersourbo
[originaltext]M:Goodmorning,canIhelpyou?W:Yes,goodmorning,I’vejust
[originaltext]M:Goodmorning,canIhelpyou?W:Yes,goodmorning,I’vejust
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
[originaltext]W:Stopforaminute.I’dliketolookatthisexhibitioninthe
随机试题
Theproducersofinstantcoffeefoundtheirproductstronglyresistedinthe
TheIndustrialRevolutionstartedin______around1733andasnewinventionswer
Wal-MartTriestoFindItsCustomerForallitssucc
系统误差可利用修正值进行补偿,这种补偿并不完全。
能激动心脏β↓1受体,增加心肌收缩力,作用于α受体,增加收缩压且能舒张肾血管的药
某商品原价100元,3月价格下降了10%,4月价格又开始上涨,5月价格上涨到了
诊断类风湿关节炎的标准之一就是:每天晨僵持续时间至少1小时,病程至少( )。A
固定资产使用率指标的不足之处有( )。A.虽然固定资产基础可能相对较新,但有一
罂粟壳的用量规定是A.2~5g B.3~6g C.4~7g D.5~8g
固体废弃物处置场址选择时,Ⅱ类场地的要求包括()。A.应选在满足承载力要求
最新回复
(
0
)