A land free from destruction （破坏）， plus wealth， natural resources ，and labor supply—all these were important 1 in helping England to become the center for the Industrial Revolution.2 they were not enough. Something 3 was needed to start the industrial process. That“something special”was men—4 individuals who could invent machines， find new 5 of power， and establish business organizations to reshape（改造）society.

　　The men who 6 the machines of the Industrial Revolution 7 from many backgrounds and many occupations. Many of them were 8 inventors than scientists. A man who is a 9 scientist is primarily interested in doing his research 10. He is not necessarily working 11 that his findings can be used.

　　An inventor or one interested in applied science is 12 trying to make something that has an actual 13. He may try to solve a problem by using the theories 14 science or by experimenting through correct and error. Regardless of his method， he is working to obtain a 15 result： the construction of a harvesting machine， the burning of a light bulb， or one of 16 other objectives.

　　Most of the people who 17 the machines of the Industrial Revolution were inventors， not trained scientists. A few were both scientists and inventors. Even those who had 18 or no training in science might not have made their inventions 19 a ground work had not been laid by scientists years20.

　　1.A. cases B. reasons C. factors D. situations

　　2.A. But B. And C. Besides D. Even

　　3.A. else B. near C. extra D. similar

　　4.A. generating B. effective C. motivating （动机） D. creative

　　5.A. origins B. sources C. bases D. discoveries

　　6.A. employed B. created C. operated D. controlled

　　7.A. came B. arrived C. stemmed D. appeared

　　8.A. less B. better C. more D. worse

　　9.A. true B. practical C. pure D. clever

　　10.A. happily B. occasionally C. unwillingly D. accurately

　　11.A. now B. and C. all D. so

　　12.A. seldom B. sometimes C. usually D. never

　　13.A. plan B. use C. idea D. means

　　14.A. of B. with C. to D. as

　　15.A. single B. only C. specialized D. specific

　　16.A. few B. those C. many D. all

　　17.A. proposed B. developed C. supplied D. offered

　　18.A. little B. much C. some D. any

　　19.A. as B. if C. because D. while

　　20.A. ago B. past C. ahead D. before

　　KEY： 1. C 2. A 3. A 4. D 5. B 6. B 7. A 8. C 9. C 10. D 11. D 12. C 13. B 14. A 15. D 16. C 17. B 18. A 19. B 20. D