| Amazing Space | |
| Curiosity, NASA’s Mars rover (探测器), recently took the world by surprise. It took a picture of a small “flower” while it was exploring the surface of Mars. Clearly, it’s not an actual flower. But it could be a rock that had been created a long time ago. Back then, the Red Planet possibly had water on its surface. The effort of the rover could help answer the question of whether life ever existed on Mars and understand when Mars might have been most suitable to host life. |
| Saturn’s (土星) beautiful rings which are made of ice and rocks won’t last forever. Scientists say that they are slowly breaking apart and will totally disappear in about 300 million years. The rings now may be 10 — 100 million years old. According to The Atlantic, 10 tons of “ring matter” fall into Saturn every second. They all get pulled by Saturn’s gravity. Jupiter (木星), Uranus (天王星) and Neptune (海王星) also have ring systems. Saturn has the largest rings, though — the others’ rings aren’t as easy to see, they may have had bigger rings in the past. |
| A．Three. | B．Four. | C．Five. | D．Six. |
| A．The two pictures were both taken by NASA’s Mars rover. |
| B．The ring systems of Jupiter, Uranus and Neptune are easy to see. |
| C．There is no doubt that Mars had water on its surface long ago. |
| D．The beautiful rings of Saturn will disappear because of the gravity. |
| A．There is a real flower in the picture. |
| B．The picture was taken by accident. |
| C．The “flower” proves that there were lives existing on Mars. |
| D．The picture will help us have a better understanding of Mars. |
| A．By offering numbers. | B．By asking questions. |
| C．By giving examples. | D．By making comparisons. |
| A．compare Mars with Saturn | B．show the new discoveries of space |
| C．introduce the changes of the two planets | D．encourage us to protect the planet we live |
