8. Sunshine and moisture (水分) are b　　　 　to living things.

7. He is fond of the 　　　　　(气氛) of peace and calm in the country.

6. The wonderful view a　　　 　to our pleasure.

5. On nature day, no p　　　 　or destruction of nature is allowed.

4. Inflation (通货膨胀) is a blow to the nation’s e　　　 .

3. Advanced farming techniques brought in have increased a　　　 　production these years.

2. The films and stories about killings have a bad e　　 　on children, I think.

1. I’ve got something of great　　　 (重要) to discuss with you.

40. These new books are a very welcome ______ to the school library.

A. addition　　　 B. arrival　　　　 C. attitude　　　　 D. audience

39. In January , 2004, the United States successfully launched “Spirit”, a Mars Exploration Rover, _____ a new milestone in the history of mankind.

　　A. it marked 　　B. marking 　　C. marked 　　D. to mark