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上期划线句答案
Those who reported eating the fewest carbohydrates in the study tended to consume less fiber and eat more protein and fat than those who ate the most carbohydrates.
在这项研究中，那些表示吃碳水化合物最少的人往往比那些吃碳水化合物最多的人摄入更少的纤维，而摄入更多的蛋白质和脂肪。
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本期内容
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双语阅读
Para.1
There's nothing else like Earth and its Moon in the entire Solar System. Other planets either have multiple moons, or none at all, but the mass ratio of our world and its hefty satellite is quite unique. The question of our unusual moon's origin, therefore, is one of planetary evolution, figuring out the pathways for various planet-moon configurations. Right now, the leading theory is that the Moon is either Earth's child or its sibling – born of the same material in the same region of the Solar System.
Para.2
New research is posing a challenge to that notion, suggesting that the Moon could instead be adopted, born elsewhere in the Solar System only to be later embraced by the power of Earth's gravity. Astronomers Darren Williams and Michael Zugger of Pennsylvania State University have crunched some numbers and found that the gravitational capture of moons is possible for terrestrial planets like Earth, and therefore a possible origin for the observed Earth-Moon system we have today.
Para.3
There's more than one way to acquire a moon, as we've seen elsewhere in the Solar System. If two bodies pass each other at the correct angle and the velocity, they can become gravitationally bound together and end up in a stable, long-term orbit. The particular scenario that might be relevant to Earth and the Moon is known as binary capture. In this scenario, two bodies that are already gravitationally bound together pass a third body. This third body snares a member of the binary pair, separating them and keeping the binary companion for itself.
Para.4
The Moon, Williams and Zugger say, has an orbit around Earth that isn't as neatly aligned with the equator as you might expect from the debris cloud origin. So, they performed a bunch of mathematical modeling to determine whether something the size of the Moon could be captured by something the size of Earth. According to their calculations, Earth could have captured something even bigger – a Mercury- or even Mars-sized object – although the orbit would not have been stable. But something the size of the Moon could have ended up in an elliptical orbit that became more circular over time, and eventually began to drift away at the same rate the Moon is receding now, at about 3.8 centimeters (1.5 inches) per year.
Para.5
So, it's possible. But is it probable? There are still other properties – such as the mineral and isotope similarities – that are more consistent with a closer relationship between the two bodies than the capture scenario would allow for. But it gives us an avenue for exploration and study that could help us understand not just our own planet, but how such systems can form in orbit around other stars, elsewhere.
本文节选自：Science Alert（科学快讯）
发布时间：2024.10.5
作者：Michelle Starr
原文标题：Our Moon May Have Been Stolen, And It's Not The Only Example We Know of
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写作句总结
原句：According to their calculations, Earth could have captured something even bigger – a Mercury- or even Mars-sized object – although the orbit would not have been stable.
结构：According to X, Y could have occurred, although Z may present （challenges）.
例句：According to public opinions, consistent practice can lead to mastery, although it may require significant time and dedication.
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阅读理解题
In the context of the last paragraph, what does the phrase "So, it's possible" refer to?
A) The Moon could have been formed from Earth’s debris.
B) The Moon's orbit will stabilize over time.
C) Earth could have captured the Moon from another location in the Solar System.
D) Other planets could have similar moon origins.
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打卡作业
翻译文章中的划线句，文末留言打卡，下期推送会在文章开头处公布参考翻译答案，大家一起来学习英语吧~
翻译 | 大橙子
校对 | 李柚子
词汇词组 | 西西弗
划线句讲解 | 流木
写作句总结 | 沅沅
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