兔宝宝装饰
成年人经常对能够清晰地记得小时候学过的东西而感到好奇，但这些东西是自那以后就不再尝试。一个多年没有机会游泳的人，当他重返水中的时候，仍然可以和以前一样游得很好。多年之后他能踏上自行车，疾驰上路。他把抛球和击球玩得和他儿子一样好。多年没有使用那些词语的母亲仍能教她的女儿诗歌“一闪，一闪，亮星星”或记得灰姑娘和金发女孩和三只小熊的故事。 一个解释就是过度学习的规律，可以这样表述：一旦我们习得了某种东西，额外的学习尝试增加了我们记住它所花的时间。 在童年，在学到一些技能后，我们通常会坚持长时间地练习它们像游泳，骑车，打棒球。我们继续听到和提醒自己一些词句像“一闪，一闪，亮星星”以及灰姑娘和金发女孩和三只小熊之类的童话故事。我们不仅学习而且过度学习。 乘法口诀对一般规则来说是个例外，它是 我们在学校学到的却忘得很快，原因是它们是我们在小时候过度学习地另一反面的知识。 过度学习规律解释了为什么在考试前会出现突击学习的现象，尽管它会为你带来一个及格的分数，但这并不是一个学习大学课程的好方法。突击学习，可能让学生能够足够应付考试，但是这样学得的东西也可能会很快全部忘记。另一方面，少一点过度学习，对一个人未来的发展真的很有必要。
gracesea123
Why should mankind explore space? 人类为何要探索太空呢？Why should money, time and effort be spent exploring and researching something with so few apparent benefits? 为什么时间、金钱、和精力会被花在探索一些没有显著的好处的事情上呢？Why should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked．为何资源会被花在太空而不是地球山的人与环境上呢？，这些不可理喻的为题常常被人问及。Perhaps the best answer lies in our genetic makeup（基因构成）as human beings．也许最好的答案隐藏在我们骨子里。What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? 是什么驱使我们的先主从树上移动到地上，到所有可能的地域与环境的呢？The wider the spread of a species, the better its chance of survival．越是广泛分布的种族，越有机会幸存下来。Perhaps the best reason for exploring space is this genetic tendency to expand wherever possible．或许人们探索宇宙最好的理由就是基因里驱使着向任何可能的地方扩展。Nearly every successful civilization has explored, because by doing so, any dangers in surrounding areas can be identified （鉴定、辨别）and prepared for．几乎每一个文化中都会因探寻和鉴定周边环境中的任何威并为之做准备而成功。Without knowledge, we may be completely destroyed by the danger．With knowledge, we can lessen its effects．没有知识，我们可能会被危险所毁灭。有了知识，我们才能减小灾难的作用。Exploration also allows minerals and other potential （潜在的）resources to be found．探索会让我们发现矿产和其他潜在资源。Even if we have no immediate （立刻adj.）need of them, they will perhaps be useful later．就算我们不是急着要用到那些，可能以后也会用得上。Resources may be more than physical possessions．资源不仅仅是指矿物。Knowledge or techniques have been acquired through exploration．知识和技术通过探索而取得。The techniques may have medical applications which can improve the length or quality of our lives． 这些科技可能会有医学价值而有助于提高人们的寿命和健康质量。We have already benefited from other improvements in earthquake prediction, in satellites for weather forecasting and in communications systems．我们已经从其他地震预测、卫星天测气预测以及循环系统的改进中受益 Even non-stick pans and mirrored sunglasses are by-products （副产品）of technological developments in the space industry!甚至是不粘锅和反光太阳镜也宇宙工业科技发展的是副产品。While many resources are spent on what seems a small return, the exploration of space allows creative, brave and intelligent members of our species to focus on what may serve to save us．虽然许多的资源看起来是花在了回报很小的事情上，太空探索中所需要的我们种族中创造性、勇敢、智慧的成员会集中注意力在拯救我们上。While space may hold many wonders and explanations of how the universe was formed or how it works, it also holds dangers．虽然宇宙中有许多奇迹和解释了宇宙是如何形成和演变的，但宇宙也存在着危险。The danger exists, but knowledge can help human being to survive．虽然有危险的存在，但知识能帮助人类生存。Without the ability to reach out across space, the chance to save ourselves might not exist．没有能力达到宇宙空间，就没有拯救自己的机会。While Earth is the only planet known to support life, surely the adaptive ability of humans would allow us to live on other planets．虽然地球是唯一已知有生命存在的行星，无疑的人类适应能力会允许我们在其他行星上生存。It is true that the lifestyle would be different, but human life and cultures have adapted in the past and surely could in the future．毋庸置疑的，那里的生活方式将会不同从前，但人类适应了过去的生活和文化也能适应未来。
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