Заедничка аудио

UNIT 21: CAREERS IN BUILDING ENGINEERING Page 97 INTRODUCTION Many different people work together to build a building. Each person has a special job. If you are an engineering student, you can choose from many careers. STORY 1: Civil Engineer Civil engineers design the structure of the building. They calculate how strong the columns and beams must be. They make sure the building will not fall down. They also design roads, bridges, and dams. Civil engineers use math and physics. They work i