11. Professor Taylor‘s talk has indicated that science has a very strong ________ on the everyday life of non-scientists as well as scientists.

A) motivation B) perspective C) impression D) impact

12. Floods cause billions of dollars worth of property damage ________.

A) relatively B) actually C) annually D) comparatively

13. We are all for your proposal that the discussion ________.

A) be put off B) was put off C) should put off D) is to put off

14. These goods are _______ for export， though a few of them may be sold on the home market.

A) essentially B) completely C) necessarily D) remarkably

15. A person‘s calorie requirements vary ________ his life.

A) across B) throughout C) over D) within

 11-15 CCAAB