21. The word "sympathetic" in Paragraph 2 most probably means_______.

　　A. harmful B. agreeable

　　C. pitiful D. sorry

　　22. It can be concluded from this passage that_______.

　　A. plastics are synthetic materials

　　B. plastics won public acceptance 120 years ago

　　C. plastics are very harmful in modern life

　　D. plastics are cheap as antiques

　　23. Which of the following is essential to create any type of plastics? A. Carbon. B. Eggs.

　　C. Oil. D. Coal.

　　24. Plastics that harden into permanent shapes are called_______.

　　A. chained B. thermoplastic

　　C. synthetic D. thermosetting

　　25. Which of the following is the best title for the passage?

　　A. The Importance of Plastics in the Nineteenth Century.

　　B. Why People Are Suspicious of Plastics.

　　C. The Development of Plastics as a Modern Material.

　　D. How Plastics Are Manufactured.

　　21. B 22. D 23. A 24. D 25. C

　　In today's world, insurance plays a vital role in the economic and social welfare of the entire population. The wish to guard against dangers to life and property is basic to human nature. By using various kinds of insurance, society has been able to reduce the effects of such hazards.

　　Nowhere is insurance more important than in the management of a business. In many instances, losses in a small firm can mean the difference between growth and failure, vitality and stagnation (停滯).Very few small businesses have even a portion of the financial resources available to larger enterprises. Frequently, they must operate on a very slight margin if they hope to stay in business. And thus, they are particularly sensitive to unexpected losses.

　　Without enough insurance, what happens to such a firm when the owner dies or is suddenly disabled? When a fire breaks out and destroys the firm's building or stock? When an employee is found to have stolen company funds? When a customer is awarded a liability judgment for an accident? Too often, the business is forced to the wall, its future operations drastically curbed; sometimes, it is damaged beyond repair, its ability to continue completely crushed.

　　Almost always, a small businessman would find it impossible to handle the full burden of his potential risk. The amount of money he would have to set aside to cover possible losses would leave him nothing, or almost nothing, to run his business with. If loss were to occur which he could repair by using his reserve fund, what assurance would he have that another loss—the same kind or different—might not occur next week, next month? But then he would have no reserve fund and little likelihood of staying in business at all.

　　26. This selection deals mainly with_______.

　　A. the relation between insurance and society

　　B. accidents and losses

　　C. business failures

　　D. the importance of insurance to business

　　27. In Paragraph 3, "forced to the wall" means "_______".

　　A. driven to despair B. staying in a strong position

　　C. doing well D. climbing up

　　28. The author thinks that_______.

　　A. accidents always happen

　　B. a businessman should take risks

　　C. businesses should have adequate insurance

　　D. insurance is a social welfare project

　　29. Adequate insurance will do all of the following EXCEPT that it will_______.

　　A. free some business funds B. add to benefits for employees

　　C. relieve some management problems D. provide for unexpected incidents

　　30. The word "curbed" in Paragraph 3 is nearest in meaning to_______.

　　A. checked B. advanced

　　C. expanded D. disturbed

　　26. D 27. A 28. C 29. B 30. A