Directions: In this section, there are four passages followed by questions or unfinished statements, each with four suggested answers A,B.C and D.Choose the best answer and mark your answer on the ANSWER SHEET.

Passage One

　　The science of meteorology is concerned with the study of the structure state, and the behavior of the atmosphere.The subject may be approached from several directions, but the scene cannot be fully appreciated from any one vantage point.Different views must be into grated to give perspective to the whole picture.

　　One may consider the condition of the atmosphere at a given moment and attempt to predict changes from that condition over a period of a few hours to a few days ahead.This approach is covered by the branch of the science called synoptic meteorology.

　　Synoptic meteorology is the scientific basis of technique of weather forecasting by means of the preparation and analysis of weather maps and aero logical diagrams.The practical importance of the numerous applications of weather forecasting cannot be overestimated.In serving the needs of shipping, aviation, agriculture, industry, and many other interests and field of human activity with accurate weather warnings and professional forecast advance, great benefits are reaped in the form of the saving of human life and property and in ec6nomic advantages of various kinds.One important purpose of the science of meteorology is constantly to strive, through advanced study and research, to increase our knowledge of the atmosphere with the aim of improving the accuracy of weather forecasts.

　　The tools needed to advance our knowledge in this way are the disciplines of mathematics and physics applied to solve meteorological problems.The use of these tools forms that branch of the science called dynamic meteorology.
Which of the following statements best describes the organization of the third paragraph of the passage?

A.Role of Women and Minorities in Management

B.The Importance of Being Visible

C.Job Performance and Advancement

D.Sex and Career Success