题目内容：

用方框中所给词填空,完成短文。

 

one,flew,planet,time,far,that,first,million,winter,size

According to our guidebook,Uranus(天王星)was the first 1. to be discovered with a telescope.It is 2,871 2. kilometres from the sun.This is twice as 3. as the planet Saturn(土星)is from the sun.Uranus is four times the 4. of the earth,but smaller than Saturn,and it is so far away 5. we can't see what it looks like.Only 6. spacecraft has been to Uranus.It was Voyager 2,in 1986.As Voyager 2 7. close to Uranus,the world saw the 8. picture of this faraway planet.The world saw a blue planet made of gas.

Summer on Uranus lasts for 42 years.During this time it is 9. on the other side of the planet.The sun shines on each side for 42 years at a 10. as it goes around the sun.