1,There are many mysteries in nature.自然界有许多神秘的东西
2,Mysteries are things we don't understand, such as how the Egyptian pyramids were built.神秘是我们无法理解的事情,比如埃及金字塔是如何建造的。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
3,In fact, we are surrounded by mysteries.事实上,我们被神秘包围着
4,What we know about the world seems like very little.我们对这个世界的了解似乎很少
5,Scientists tell us that what we see in the universe is only a small part of what is there.科学家告诉我们,我们在宇宙中看到的只是宇宙中的一小部分
6,The rest is invisible,including dark matter and dark energy.其余的是看不见的,包括暗物质和暗能量。
7,These two unknowns make up around 95% of the universe.这两个未知数约占宇宙的95%。
8,Evidence for their existence comes from their effects on what we can observe, such as the motion and positions of distant galaxies.它们存在的证据来自它们对我们所能观察到的东西的影响,例如遥远星系的运动和位置。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
10、Yet, though we know very little, we are able to build airplanes and communicate with smartphones.然而,尽管我们知之甚少,但我们能够建造飞机和智能手机通信。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
11,In some ways we humans are very smart, or at least we think we are.在某些方面,我们人类非常聪明,或者至少我们认为我们很聪明。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
12,We still need to face big issues, like climate change, and that is going to be a huge challenge.我们仍然需要面对像气候变化这样的大问题,这将是一个巨大的挑战
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
13,The challenge for humans will be our ability to adapt to our changing environment.人类面临的挑战将是我们适应不断变化的环境的能力。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
14,What about other forms of life?那么其他形式的生命呢?
15,How do they adapt?它们是如何适应的?
16,Seasonal variations, for example, can be one of the greatest challenges for animals to overcome.例如,季节性变化可能是动物克服的最大挑战之一。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
17,Overcoming such challenges is a great achievement, but hardly easy.克服这些挑战是一项伟大的成就,但并非易事。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
18,Some birds migrate thousands of kilometers each year to deal with seasonal changes.一些鸟类每年迁徙数千公里以应对季节变化。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
19,These migrations are amazing.这些迁徙是惊人的
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
20,Birds don't carry maps or compasses, yet they know where to go.鸟类不带地图或指南针,但它们知道去哪里。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
21,They have developed the ability to see the Earth's magnetic field.他们已经发展了观测地球磁场的能力
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22,This ability is a wonder of nature.这种能力是大自然的奇迹
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
23,It takes advantage of the fact that the earth is like a huge bar magnet.它利用了这样一个事实:地球就像一个巨大的磁棒
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
24,It has a north pole, which is positive, and a south pole, which is negative.它有一个北极,它是正的,还有一个南极,它是负的。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
25,Somehow the birds are able to see this magnetic field and use it to their advantage.不知怎的,这些鸟能够看到磁场,并利用它来获取它们的优势。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
26,And even the way birds fly together is amazing.甚至连鸟儿一起飞翔的方式都令人惊叹。
27,Many migrating birds fly in a V formation.许多候鸟以V字形飞行。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
28,They do this to conserve energy.他们这样做是为了保存体力。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
29,In a V formation, birds can use the energy of the birds in front of them.在V形队形中,鸟类可以利用前方鸟类的能量。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
30,This energy comes from the air currents generated by the wings.这种能量来自于由翅膀产生的气流。
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
31,Conserving energy is necessary for the birds to survive the long journey.节约能源对鸟类在长途旅行中生存是必要的
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英语流利说懂你英语 Level5 Unit1 Part4 Listening Myster of Nature 1
32,How do the birds know this?鸟是怎么知道的?
33,It's truly amazing how the birds know this.鸟类是如何知道这一点的真的很神奇。
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