《2024年北大绿卡课课大考卷九年级英语全一册人教版吉林专版》

Have you ever been to Iceland? How about Norway or Finland? Maybe you've traveled to northern Russia or Canada. These are some of the best places to see one of our planet's most beautiful natural phenomena (现象). What are we talking about? The Northern Lights, of course!
The Northern Lights appear as beautiful colors in the night sky. The most common color of the Northern Lights is green. However, they can also be red, pink, yellow, or purple.
What causes the Northern Lights? Like all the natural light on the earth, they come from the sun. Sometimes, the sun has big storms and gives off electrically charged particles (带电粒子). When the electrically charged particles reach the earth, some of them pass through to the air around our planet. They then collide (碰撞) with the gases (气体) around the earth, which causes beautiful lights with colors.
The colors of the Northern Lights have to do with the height. For example, when electrically charged particles collide with gases less than 150 miles from the earth's surface, they produce green light. When the collision happens higher than 150 miles, they make red light.
Over time, many people have tried to explain the Northern Lights. Some cultures have ancient stories about them. Today, however, we know the science behind the Northern Lights, and people travel thousands of miles each year hoping to see them. Many say it's a magical experience!
根据短文内容，判断下列句子正(T)、误(F)。
(　　　)46. The Northern Lights can be seen in Iceland.
(　　　)47. Green is the most common color of the Northern Lights.
(　　　)48. The electrically charged particles collide with the gases around the moon, which causes the Northern Lights.
(　　　)49. The colors of Northern Lights have to do with the temperature.
(　　　)50. There are ancient stories about the Northern Lights in some cultures.

答案： 46—50 TTFFT