阅读理解：
Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals. Yet injuries are treated. And diseases are often cured. How? By ancient methods. By medicines that might seem mysterious, even magical . Traditional medicines are neither mysterious nor magical, however.
Experts say almost 80% of the people in the world use plants for health care. These natural medicines are used not just because people have no other form of treatment. They are used because people trust them. In developed areas, few people think about the source of the medicines they buy in a store. Yet many widely-used medicines are from ancient sources, especially plants. Some experts say more than 25% of modern medicines come, in one way or another, from nature.
A much more successful than modem ones.
C successful in all cases.
2 Which of the following statements is NOT true?
B Many big and modem hospitals are expensive.
D Humans have used some kinds of medicines since earliest days.
A can cure all kinds of diseases.
C are no longer useful for modem men.
4 What do the majority of the people in the world use for health care?
B Factory-produced chemicals.
D Plants.
A may never be exhausted.
C is surprisingly big.
答案：1. B 2. A 3. B 4. D 5. B