题目

缺词填空 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   . 答案：1.important,  2.Without,   3.thousands,  4. hot,   5.nearer, 6.why,    7.much,    8. away,   9.Nothing,  10.year

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