1【题目】翻译这段英文WHY IS T HE SKY BLUE:Light is a kind ofenergy that can travel through space.Light from the sun or a light bulb looks white,but it isreally a mixture of many colors.T he colors inwhite light are red,orange,yellow,green,blue andviolet.You can see these colors wh...
Why is the sky blue but black at night? During the day (daylight) the sky has a blue appearance because the Sun`s light (white light) is made up of rainbow of colors (red, orange, yellow, green, blue, indigo and violet) of different wavelength. ... The black sky at night that s...
Why is the sky blue? Everyone loves a clear sunny day, but have you ever looked up and wondered exactly why is the sky blue? The answer lies in the physics of when sunlight passes through the atmosphere. The light rays are scattered in all directions as they hit the air molecules, and...
As such, although you see blue sky near the horizon, it appears pale or white. Although the sky is blue from your position on the ground, it actually looks black from space or on the moon. Since there is no atmosphere in space, the light from the sun is not scattered and colored ...
On a clear sunny day, the sky above us is a brilliant blue. In the evening, the sunset puts on a beautiful show of reds, pinks and oranges. Why is the sky blue? What makes the sunset red? To answer these questions, we must learn about light, the Earth's atmosphere, and how these...
Before we get into that, however, let's look at what color the sky actually is. Blue Skies: The Size Is the Limit The Science Behind the Blue Sky Like bananas, atoms, molecules and particles in the atmosphere absorb and scatter light. If they didn't, or if the Earth had no ...
If we think about Figure 2, we see that something is a bit off. Why is the background black in the first situation, but the background (the sky) is blue as seen on Earth? Both of these situations involve a single light source shining on someone. Let's dig deeper as we try to fi...
百度试题 结果1 题目选词填空(why/because)(1)From space, the earth looks blue.This is about seventy-one percent of its surface is covered by water.(2)This is I left so early. 相关知识点: 试题来源: 解析 (1)because (2)why 反馈 收藏 ...
From space, the earth looks blue. This is why about seventy-one percent of its surface is covered by water. 相关知识点: 试题来源: Unit2StartingoutUnderstandingideas导学案-高中英语外研版选择性 解析 why改为because 考查表语从句。根据语境可知,地球看起来是蓝色的,是因为大约71%的表面被水覆盖,表...
首先根据设空处所在的句子表述的是客观事实,所以用一般现在时,主语 most of the earth's surface 是动作cover 的承受者,表示"被覆盖"所以用被动语态,一般现在时被动语态的构成是:主语+am/is/are+动词的过去分词,主语是不可数名词,be动词用is,故选B. 点评 本题考查时态和语态.每个时态都有标志词,熟记这些标志...