We look at the sun every day.
On Sept. 2nd, 2021, China’s Fengyun-3E satellite took its first photo of the sun.
One of the satellite’s sides faces the sun all the time.
Clear pictures of the sun can help scientists study it more deeply. For example, scientists can better study solar storms. These may affect the weather on Earth.
| A．It used China’s solar space telescope (望远镜) to do the job. |
| B．By watching the sun closely, we can take actions to protect ourselves. |
| C．Big solar storms may also make our phones stop working. |
| D．But do you know what the sun really looks like? |
| E．It can watch the sun’s activity without stopping. |
相似题推荐
【推荐1】From a plane you can see the fields, cities, mountains or rivers below. If we go into space, we see more and more of the earth. People and man—made satellites (卫星) are sent into space to look at the earth, the stars and other planets and learn more about them.
The moon is our nearest neighbor in space. It is our satellite and men have visited it already. It is smaller than the earth. Plants can’t grow on the moon because there is no air or water on it. There are lots of mountains on the moon. At night, it is very cold on the moon. It is not comfortable to live on the moon if possible. On the moon, there is much dust here and there. The things on the moon are much lighter than the things on the earth.
The moon hasn’t its own light. It shines back (反射) the light of the sun. When the sun is shining on the side of the moon that faces us, it looks like a great round ball. We can’t see the moon when the sun is shining on the side of the moon that faces away from us.
In fact, the moon isn’t as near as it looks. It is 380, 000 kilometers away from the earth. Of course we can fly to the moon in a spaceship. It only takes more than three days to get there by spaceship.
根据短文内容，选择最佳答案。
1. The underlined words “dust” in the passage means “ ________” in Chinese.
| A．液体 | B．尘土 | C．冰山 |
| A．find there is more air |
| B．see more of the earth |
| C．learn more about the sun |
| A．a great round face |
| B．a great square box |
| C．a great round ball |
| A．Many kinds of plants can grow on the moon. |
| B．It takes the spaceship at least three days to the moon. |
| C．People can live on the moon easily. |
| A．Something about the moon. |
| B．How to get to the moon. |
| C．The introduction (介绍) the sun. |
【推荐2】Many people believe that the Moon was once part of the Earth and broke away millions of years ago. Other people say that it came from another part of space.
There are high mountains, deep valleys and wide flat spaces on the Moon. Animals and plants can’t live on the Moon because it has no air or water. There are no clouds, no rain and no snow, either.
Sound needs air to travel. There is no air on the Moon. So there can be no sound there. The Moon is a silent place.
The Moon has no light of its own. It looks bright because the Sun’s light shines on it. During the day, the rocks become hotter than boiling (沸腾的) water. This is because the Moon is closer to the Sun than the Earth.
The Moon is about 383 thousand kilometres away from the Earth. It takes a spaceship about three days to reach the Moon. But it would take a car nearly six months to travel this way.
1. What can we see on the Moon?| A．Water. | B．Clouds. | C．Mountains | D．Snow. |
| A．Quiet. | B．Bright. | C．Wet. | D．Large. |
| A．Because there is no air on the Moon. |
| B．Because the Moon is close to the Earth. |
| C．Because the Sun’s light shines on the Moon. |
| D．Because there isn’t any light on the Moon. |
| A．We can take a car to the Moon. |
| B．We can hear some sound on the Moon. |
| C．It’s cold on the Moon in the daytime. |
| D．There aren’t any animals or plants on the Moon. |
【推荐3】Like all the planets in our solar system, Earth and Mars go around the sun. But Earth is closer to the sun, and therefore revolves along its orbit(轨道) quickly. Earth makes two trips around the Sun in about the same amount of time that Mars takes to make one trip. So sometimes the two planets are on the opposite sides of the Sun, very far apart, and other times, Earth catches up with its neighbor and passes relatively close to it.
Since Mars and the Sun appear on opposite sides of the sky, we say that Mars is in “opposition”. Mars oppositions happen about every 26 months. Every 15 or 17 years, opposition occurs within a few weeks of Mars’ perihelion(近日点).
An opposition can occur anywhere along Mars’ orbit. When it happens while the red planet is closest to the sun (called “perihelic opposition”), Mars is particularly close to Earth. If Earth and Mars both had perfectly stable orbits, then each perihelic opposition would bring the two planets as close as they could be. So, with all these added factors, some bring us closer together than others. The 2003 opposition was the closest approach in almost 60,000 years!
Mars’ orbit is more elliptical(椭圆的) than Earth’s, so the difference between perihelion and aphelion(远日点) is greater, Mars’ orbit has been getting more and more elongated, carrying the planet even nearer to the Sun at perihelion and even farther away at aphelion. So future perihelic oppositions will bring Earth and Mars even closer. Our 2003 record will stand until August 28, 2287!
1. Mars ________.| A．isn’t one of the planets in our solar system |
| B．is farther from the sun than the earth |
| C．never meets Earth close |
| D．and Earth have the same orbit around the sun |
| A．as long as | B．not so long as |
| C．as about two times long as | D．as about three times long as |
| A．When Mars is in “opposition”, Mars and the sun are opposite in the sky. |
| B．Mars oppositions happen about every 15 or 17 years. |
| C．An opposition can occur everywhere along Mars’ orbit. |
| D．Mars oppositions happen about every 26 months. |
| A．伸长的 | B．拉长 | C．延长 | D．被拉得.细长的 |
| A．is the closest approach in almost 60,000 years |
| B．is in 2003 |
| C．will bring Earth and Mars even farther |
| D．will happen on August 28, 2287 |
