Week 4（含长难句分析及参考译文）-2023-2024学年九年级英语热点时文阅读周周练

2023-2024学年九年级时文阅读周周练—第四周 Monday A spaceship from NASA hit an asteroid(小行星)about 11 million kilometers from Earth recently. This is part of NASA's Double Asteroid Redirection Test (DART). NASA called it “the world's first task to test technology for protecting Earth” against asteroids or other space dangers. The spaceship traveled at a speed of22.500 kph. It hit the asteroid Dimorphos on September 26. NASA watched the event with cameras and telescopes(望远镜)on Earth. The team leader Nancy Chabot said, “This isn't going to blow up(炸毁) the asteroid. This really is about changing its path.” The asteroid, Dimorphos, is about 160meters wide. Before this hit.it completed one circle around a parent asteroid called Didymos every 11 hours and 55 minutes. NASA announced that the time was reduced by 32minutes by the hit. Although the hit only changes the asteroid's path a little, that will lead to a large re-direction over time." So if you were going to do this to protect Earth, you would do it 5. 10. 15 or 20years in advance in order for this technique to work," Chabot said. In fact, the two asteroids are not a threat(威胁)to Earth. They are both very small compared to the Chicxulub asteroid which hit Earth about 66 million years ago and killed most of the world's plants and animals including dinosaurs. But the test shows hitting the asteroid with a spaceship will be an effective(有效的）way if an Earth-threatening asteroid is discovered in the future. DART is the first human task to hit an asteroid, but it won’t be the last. Other countries, including China and Japan, have also started their own asteroid tasks. 1. Why did NASA send a spaceship to hit Dimorphos? A. To change the asteroid's speed. B. To find more space dangers and mystery. C. To blow up the asteroid completely. D. To change the asteroid's direction. 2After the hit, Dimorphos completes one circle around Didymos every____. A. 715 minutes B. 748 minutes C. 752 minutes D. 683 minutes 3.The result of