名校最新大学英语四级阅读精讲的系列讲义：(128)_大学英语阅读

　　1. What is the passage mainly about?

　　A) The scientific revolution in the seventeenth century.

　　B) Reasons that chemistry developed slowly as a science.

　　C) The practical aspects of chemistry.

　　D) Difficulties of organizing knowledge systematically.

　　2. According to the passage, how did knowledge about chemical processes increase before the seventeenth century?

　　A) Philosophers devised theories about chemical properties.

　　B) A special symbolic language was developed.

　　C) Experience led workers to revise their techniques.

　　D) Experts shared their discoveries with the public.

　　3. The bold word hampered in Line 1 Para 2 is closest in meaning to____.

　　A) recognized B) determined C) solved D) hindered

　　4. The bold word it refers to which of the following?

　　A) Problem. B) Material.C) Difficulty. D) System.

　　5. Which of the following statements best explains why the second of these was the more serious impediment ?

　　A) Chemical knowledge was limited to a small number of people.

　　B) The symbolic language used was very imprecise.

　　C) Very few new discoveries were made by alchemists.

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