Men have always wondered about the earth they live on and about the ① ______ above them.
When early men looked at the night sky, they asked themselves a lot of questions. They looked at the moon, and wondered what this strange bright object in the sky was. They did not understand why it changed its shape from night to night. They looked at the stars and planets. They also wondered why some of them changed their positions, while others did not. ② 他们也思考地球的形状。Most early people believed the earth was flat.
③ In different parts of the world, there were different ideas about the universe. The ancient Greeks were the first people to study the universe more scientifically. In the sixth century BC Pythagoras put forward the idea that the world was round. However, he could not explain why people at the bottom of the world did not fall off.
It was not until the sixteenth and seventeenth centuries that scientists found the answers to some important questions. ④ With the help of Galileo’s telescope, people could see the sky more clearly, and find the positions of the stars and planets. Finally in 1665,Isaac Newton explained to the world what gravity (重力) was and people at last understood why they did not fall off the earth.
【小题1】在文中①处填写一个单词，使得句意完整、上下文通顺【小题2】根据文章内容回答问题。
What questions did early men ask themselves when they looked at the night sky? Write down one of them.
【小题3】将文中②句翻译成英语。
【小题4】将文中③句翻译成汉语。
【小题5】写出文中④句的同义句，每空限填一词。
Galileo’s telescope made
Mars is full of surprises. Not long ago, something strange showed up in a picture of this planet. It is a pattern (图案) on the ground that looks like a bear face.
The picture was taken from high above Mars. Scientists took a closer look at the bear. Different marks on the ground make up the face of the bear. Its two eyes are big holes known as craters (坑). Rocks from space hit the surface of Mars long ago and then made the craters. The nose of the bear is a hill. Part of the hill has broken off in the shape of a V. The circle that forms the head is a crack (裂缝) in the ground. It might be the edge (边缘) of a crater that was much larger. Later, something like lava (岩浆) filled it. The “lava” might have come out of the hill that formed the nose.
Seeing a bear face on Mars is not as unusual as it might sound. The human mind is finding patterns in the world all the time. This is why you might see a cloud and think that its shape is like an animal or object.
People watching the surface of Mars have had experiences like this. In 1976, people were excited to find something like a human face in a picture of Mars. But it was just a huge rock.
These days, people take pictures of all kinds of things on Mars. Some have strange shapes. They might look like Martians made them, but it is probably not true. So far, Mars seems to be lifeless. The strange shapes people see are just patterns in the land.
Recently, a pattern was found on Mars. It looks like a face of a bear. Scientists took a closer look at it. In fact, the bear face is made up of different marks on the ground. The eyes are two large It might not be as unusual as it sounds to see such a face on Mars. The human mind is Now, people take pictures of all kinds of things on Mars. Some in |
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