1 . 阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式
The home of the future won't be 1 (complete) different and we will be living in houses and flats just as we do today. 2 (build) in different shapes, no two homes will look the same. People will be able to buy “house kits” containing a basic house structure, with adjustable walls, doors and windows. They will put together the different parts 3 (create) the home they want.
Space holidays will develop in the future, but these holidays won't be for everyone because they are 4 (expensive) than holidays on the earth. Short space trips will develop first, then the space hotels will go around the earth 5 it will be possible to have a longer vacation. By 6 end of the next century, there will be holiday centres on the moon with leisure facilities for families.
According to the laws of physics, the earth is going to 7 ( appear) some time in the future. This isn't going to happen tomorrow but scientists predict that it will happen in five billion years when our sun 8 (explode). 9 a result,we will have to explore the universe and find another home. At some point in the distant future, either we stay on the earth and die with it,or we leave and move to another planet. There won't be any other 10 (choose).