To make good food and water supplies even better, the Government needs

to  tighten its regulatory standards, stiffen its inspection program

and strengthen its  enforcement policies. The food industry should

modify some long-accepted practices or turn to less hazardous

alternatives. Perhaps most important, consumers will have to do a

better job of learning how to handle and cook food properly. The

problems that need to be tackled exist all along the food-supply chain,

from fields to processing plants to kitchens.

Questions 11-15 are based on Passage Three.

 11. What does the author think of the Americans’ view of their food?

 A. They overlook the risks of the food they eat.

 B. They overestimate the hazards of their food.

 C. They are overoptimistic about the safety of the food they eat.

 D. They overstate the government’s interference with the food

industry.

12. The author considers it impossible to obtain no-risk food because

______.

 A. no food is free from pollution in the environment

 B. pesticides are presently widely used in agriculture

 C. almost all foods have additives and preservatives

 D. many vegetables contain dangerous natural chemicals

13. By saying “they employ chemical warfare” （Para. 2）, Bruce Ames

means ______.

 A. plants produce certain chemicals to combat pests and diseases

 B. plants make use of natural chemicals to promote their growth

 C. farmers use man-made chemicals to dissolve the natural chemicals in

plants

 D. farmers use man-made chemicals to protect plants against pests and

diseases

14. Who is most responsible for better food and water supply?

 A. The government.                               B. The consumer.

 C. The processor.                                  D. The growers.