题目内容
缺词填空（共10空；每空1分，计10分）
There is nothing more i 1. to life than the sun. W 2. the sun, all living things on the earth would die. The sun is a star. In the sky there are t 3. of stars like the sun. They are as large as the sun and as hot as the sun. At night you can see many stars, but in the day you can o 4. see one star------ the sun.
The sun is much n 5. to us than any other star. That is w 6. it looks the biggest and brightest of all the stars. The distance (距离) of the sun from the earth is as m 7. as 150,000,000 kilometers. Most stars are thousands of light-years a 8. from the earth.
Do you know what a light-year is? N 9.in the world travels faster than light. It travels 300,000 kilometers per second. And one light-year is the distance that light can travel in one y 10. .
