[交流] 每周一听——那些年我们一起练过的听力（第192期）已有10人参与

每周一听——那些年我们一起练过的听力（第192期）

如果对本活动有兴趣就收听我吧！！！

注意：参与活动的虫子请把自己的答案以站内信形式发送给我，并在活动帖里占位回复，方便评分，下周六下期活动发布之前有效哦。还有其他不懂之处，请在此帖里面直接留言回复，我们将尽快回答。
PS：站内信的发送方式为：点击我的用户名（relive012429个人主页https://muchong.com/bbs/space.php?uid=2210325），将答案输入对话框点击发送即可。别忘记回帖占座喔！
奖项——听写后正确填空者可得BB奖励
评分规则：
每篇设空十处，每答对一空奖励一个BB，全对的虫子可得15个BB奖励。有好的建议大家可以跟帖留言，加油哦~~~~~~

The first life on Earth appeared about four billion years ago. One place these    (1)    organisms may have emerged is at hydrothermal vents, deep underwater. Where unusual chemistry provided energy for   (2)    life-forms to survive. Life-forms like the methane-belching microbes found at the vents today.
Now, for the first time, researchers have found evidence of methane-producing life in similarly extreme conditions, but at the surface of the Earth — at a spring in northern California, called The Cedars. The water there is extremely basic — with a pH of 11.6. And it contains no oxygen. Not an easy place to survive.
Researchers tested water and    (3)    at the Cedars. Some samples got dosed with mercuric chloride to kill any life present. Those dosed samples produced no    (4)    . But the samples in which microbes were allowed to survive did put out methane. Confirming that at least some of the methane at the springs is indeed   (5)    in origin. The findings appear in the Journal of Geophysical Research: Biogeosciences.

The finding has implications for climate change    (6)    . A geologically similar spring in Oman has been proposed as a site for carbon storage—pumping CO2 underground, where it gets    (7)    in stone. But the    (8)    at The Cedars can use CO2 to make methane—an even more potent greenhouse gas. "So imagine pumping CO2 into the ground and having it come back up as methane." Penny Morrill, a biogeochemist at Memorial University of Newfoundland. "This will not necessarily happen, but it is something to be tested for before fully    (9)    a carbon capture and storage technology at one of these types of sites."
Morrill says the study's also a reminder that life is   (10)  ."We should not let our biases prevent us from looking for evidence of life in what we would otherwise consider an unexpected place." Including other planets and moons.
最近毕业季，各种事情场合比较多，忙的焦头烂额。现在还没有给大家评分，依旧和大家说声：对不起！对不起！对不起！我会尽快完成评分。“Studying has almost no short term rewards. But the long term rewards are huge!”让我们一起学英语，我们一起听听力！每天进步一点点！ 期待更多小伙伴加入我们。加油！！！金币奖励活动继续，连续参加4期的小伙伴们请私信我，我会给大家及时发放奖励，期待你们取得更大的进步和更多的奖励！
上期答案
1. predatory
2. mutualism
3. cross-protective
4. resistant
5. succumbing
6. coexistence
7. donates
8. individually
9. guidance
10. circumstances