Fun Facts-10 活用知识搜查线-10
- 详细资料
- 创建于 2013年10月14日
- 最后更新于 2023年12月18日
- 发布于 2013年10月14日
- 作者：Mike Lee
- 点击数：348
课文朗读
课文讲解
Q: Whenever light shines on an object, a shadow is cast behind it. But how much does that shadow weigh? 每当光照在物体上时，就会有影子投射于后。但影子有多重呢？
(A) It weighs a lot. 非常重
(B) It weighs very little. 非常轻
(C) It weighs nothing. 没有重量
A: You weren’t weighed down by anything if you guessed C. A shadow is weightless; in fact, an object in the shade is lighter than it is while in the light. The reason for this is that light actually pushes on objects. This downward force from sunlight makes things heavier when they are weighed. So if you are looking to lose a little weight on a sunny day, just step into the shade.
如果你猜C，任何事都压不倒你。影子是没有重量的。事实上，物体在阴影下时比在日照下来得轻，其原因是光其实对物体有推力。这种来自阳光的向下力令物体量起来更重。所以，如果你期待能在晴天时减一点重，就往阴影下站吧。
Q: We use mirrors to see how we look, but can you guess what color mirrors are? 我们用镜子来看自己的模样，但你能猜出镜子是什么颜色吗？
(A) They’re silver. 银色
(B) They’re green. 绿色
(C) They’re white. 白色
A: You saw through the question if your answer is B. Mirrors are usually depicted in illustrations as being silver, but they are in fact green in color. If two mirrors face each other, you get what is called a mirror tunnel, where reflections keep going forever. If you look “down” the tunnel, the further in the greener it looks. And therein hides the answer.
如果你的答案是B，你看透了这个问题。镜子常被描绘成银色，但他们其实是绿色的。如果两面镜子面对面，就会出现镜子隧道，其镜反射来回不断。如果你往隧道「下」看，看得越深入，镜子看起来就越偏绿，而答案便藏在其中。
单词发音
Vocabulary
cast [kæst] v. 投射（光，影，视线等）
(cast-cast-cast)
In the late afternoon, shadows are cast longer and longer.
shade [ʃed] n. 阴影
The lady used an umbrella to keep herself in the shade on a sunny day.
see through 看穿﹐识破
Mothers can often see through their children's lies.
illustration [ɪ͵lʌsˋtreʃən] n. 图案; 图示
illustrate v. 图解
This book is helpful for young children because it has many colorful illustrations.
reflection [rɪˋflɛkʃən] n. 反射
reflect v. 反射; 反映
Tina looked at her reflection in the mirror to make sure that her hair looked nice.
More Information
weigh down 压弯,压垮; 使颓丧
weightless [ˋwetlɪs] adj. 无重量的
downward [ˋdaʊnwɚd] adj. 向下的
depict [dɪˋpɪkt] v. 描写﹐描述﹐描绘
therein [ðɛrˋɪn] adv. 在其中；在那里
课文朗读
课文讲解
Q: The most important part of our body is our brain. Could our body do anything without one? 我们的身体最重要的部分是大脑。少了它，我们的身体能做任何事吗？
(A) It could still move a little bit. 还能稍微动一下
(B) It would be capable of doing everything it does normally. 可以正常地做所有事
(C) It wouldn’t be able to do anything at all. 什么事也不能做
A: This question is a no brainer for you if you believe A is the answer. Our brains allow us to think, breathe air, and control our muscles, but without one we would not be capable of doing all those things. However, our bodies are likely to do a few things even after we’re dead. A dead body can twitch due to nerve responses. This is possible because energy stores up in the body and allow it to keep working－at least until the energy is exhausted.
如果你相信A是正解，那你不须思索便能答对这个问题。我们的大脑让我们能够思考、呼吸以及控制肌肉，而少了大脑，这些事我们全都做不到。然而，我们的身体甚至在我们死后还可能做到某些事。一个死亡的身体能够因神经反应而抽动。这样的可能性是由于能量储存于体内，并使身体继续运作，至少持续到能量耗尽之前。
Q: It’s likely that you’ve yawned a few times today. But why do we yawn? 你今天可能已经打了几次呵欠，但为什么我们会打呵欠呢？
(A) We yawn because we need more oxygen. 我们因为需要更多氧气而打呵欠
(B) We yawn to let out extra oxygen. 我们打呵欠排多余的氧气
(C) We yawn to relieve our brains. 我们打呵欠以舒缓大脑
A: If you said C, you weren’t nodding off. When a person gets tired, their brain starts heating up. In an effort to stop it from overheating, people yawn to cool it down. But we yawn for more reasons than just keeping our head cool. Early humanoids used to yawn and stretch their bodies to communicate with others within their tribe. This extra air from a yawn also allowed them to wake up and be more alert, which was helpful if there was a dangerous enemy nearby.
如果你选C，你并没有在打瞌睡。当一个人感到疲累时，他的大脑便开始发热。为了不使大脑过热，人会打呵欠来将其冷却下来。但我们除了保持大脑冷却之外，还有更多打呵欠的理由。早期的猿人会打呵欠并伸展身体来与部落中的其他人沟通。来自呵欠的额外空气也令他们清醒并加强警戒，这在附近有危险敌人时很有帮助。
－by Kristopher Snyder
单词发音
Vocabulary
normally [ˋnɔrm!ɪ] adv. 正常地
normal adj. 正常的
It is normally sunny in Tainan, but today it is quite cloudy.
nerve [nɝv] n. 神经
Surgery is painful, so doctors give patients medicine to calm their nerves.
relieve [rɪˋliv] v. 缓和，减轻
(relieve-relieved-relieved)
Warm tea with honey can relieve a sore throat or a tooth that hurts.
effort [ˋɛfɚt] n. 努力，尽力
Young sports players must put forth great effort to become professional athletes.
tribe [traɪb] n. 部落；种族
The boys in this tribe must hunt on their own to prove that they are ready to be warriors.
More Information
no brainer 简单的事情；毫无疑问的事
twitch [twɪtʃ] v. 使抽动；使痉挛
exhausted [ɪgˋzɔstɪd] adj. 耗尽的，用完的
overheat [ˋovɚˋhit] v. 过热
humanoid [ˋhjumənɔɪd] n. 类人动物；猿人