How many things can you see in the night sky? A lot! 1 a clear evening you might see the Moon and some planets. And 2 sparkling stars3 , too.
You can see even4 with a telescope. You might see stars where you only saw dark space before. You might see that many stars look larger than others. You might see that some stars 5 look white6 really red or blue.
But scientists believe there are some things in the sky that we 7 . We can't see them with the biggest telescope in the world, even when it is the clearest night of the year. That's8 they're invisible. They're the mysterious dead stars and they 9 black holes. You might find 10 hard to imagine that stars die. After all, our Sun is a star. Year after year we see it up in the sky, burning brightly, giving us heat and light. The Sun certainly doesn't seem11 getting old or weak, 12 stars do burn out and die after billions of years. As a star's gases burn, they give off light and heat. But when the gas runs 13 , the star stops14 and begins to die.
So the next time you stare up at the night sky, remember: there's more in the sky than that meets the eye. 15 amazing space it is!
BEIJING, Dec. 17 (Xinhua) — The return capsule (太空舱) of China's Chang'e-5 touched down on Earth. It 1 back the country's first samples (样品) from the moon, as well as the world's freshest lunar samples in over 40 years.
The spaceship 2 north China at 1:59 a.m. (Beijing Time). According to Zhang Kejian, head of the China National Space Administration (CNSA) , declared the Chang'e-5 mission a 3 .
It marks a successful conclusion of China's 4 steps lunar exploration program of orbiting (环绕), landing, and bringing back samples. And the mission 5 in our country in 2004.
The capsule landed in the area 6 , and the search team found it.
"The capsule is set to be airlifted to Beijing for opening. And it will be sent to the research team for 7 ." said the CNSA.
Chang'e-5 is one of the 8 missions in China's aerospace history. Pei Zhaoyu said the Chang'e-5 mission not only ended China's lunar exploration program, but also it's a base for future 9 exploration.
"We hope to work with other countries to build the 10 lunar research station for more scientific exploration and experiments." Pei said.
Last night, Tina woke up at midnight. She saw something diving towards the ground and a loud noise in the forest. The next morning, Tina and her brother Tom decided to explore after school. When they got into the forest, they heard some voices a strange language. So they hid behind the bushes and keep . They saw an alien standing next to a spaceship. The spaceship was because of a crash. Suddenly, another alien appeared in front of them and made a terrible noise .The children ran away in .
Four people say they have seen UFOs and said something about UFOs. Person A said that his wife and he saw something very bright through the sky when they were sitting outside on a warm night. Person B said that he found some pieces of 7 metal on his farm. Then he called the army. Person C said that he some pieces of metal and gave them to an army expert. Person D said that his parents and he saw the bodies of three aliens on the grass on the side of the hill. Then some soldiers came and us to leave. No one knew what the truth was.
网络学习优点 | 1. 学习时间灵活 |
2. 有丰富的学习资源 | |
3. …… | |
网络学习缺点 | 1. 对眼睛不好 |
2. 对学习有影响 | |
你的看法 | …… |
参考词汇：灵活的 flexible 资源 resource
注意：1. 文中请勿使用真实人名、校名和地名；2. 内容应包含提示信息并适当发挥；3. 词数：80词左右；4. 文章的开头已给出，但不计入总词数。
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