题目列表(包括答案和解析)
完型填空
There is nothing m 1 important than the sun. Without the sun all the l 2 things on the earth will die. The sun is a star. In the sky. there a 3 many stars like the sun. They are as l 4 as the sun and as hot as the sun. A 5 night, you can see many stars, but i 6 the daytime, you can see only one star－the sun.
The sun is much n 7 to us than any other stars. That's why it looks the biggest and brightest of all the stars. The distance(距离) of the sun f 8 the earth is as much as 150 million kilometres. Most of the stars are thousands of light years a 9 from the earth.
Do you know what is the light year? Nothing in the world travels f 10 than light. It travels 300,000 kilometres a second(秒). And one light year is the distance that light travels in one year.
| 拉力F/N | 拉弹簧测力计的线端通过距离S/m | 有用功W有用/J | 总功W总/J |
| 0.6 | 0.4 | 0.3 | 0.24 |
根据短文内容和首字母提示把所缺单词填写在短文中相应的横线上，使句意完整正确。
There is nothing more important to life than the sun．Without the sun all living things on the earth would die．
The sun is a star．There are millions of stars like the sun i________(1)the sky．They are as large as the sun and as hot as the sun．At n________(2)you can see many stars, but in the daytime you can o________(3)see one star－the sun．
The sun is much n________(4)to us than any other star．That's w________(5)it looks the biggest and brightest of all the stars．The distance(距离)of the sun from the earth is as much as 110 million kilometers．Most of the stars are thousands of light years a________(6)from the earth．Do you k________(7)the light year?Nothing in the world travels faster than light．It t________(8)300 000 kilometers a second(秒)．And one light year is the distance that light travels in one year．
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