单词拼写（每小题1分，每空一词，共计10分） 
Rich people wanted to p________ their own paintings, so they could decorate their superb palaces and great houses.
They said that the painters were careless and their paintings were ________ (荒谬的)
If there had not been an exchange program, he would not have found a s________ to help him study abroad.
The language is ________ (具体的) but imaginative, and they delight small children because they rhyme.
As you know, if you do the same thing over and over again, you begin to do it a_______.
Dr. Foster thinks that the trend which increases the temperature by 5 degrees would be a _________. (大灾难)
If you develop AIDS, your chances of s____________ are very small.
Recycle cans, bottles, plastic bags and newspapers if ________ (情况) allow you to.
I was ________ (任命) as a volcanologist working for the Hawaiian Volcano Observatory twenty years ago.
The e__________ itself is really exciting to watch and I shall never forget my first sight of one.