1-1材料力学的任务及研究对象(The tasks and research objects of mechanics of materials) 1-2变形固体的基本假设(The basic assumptions of deformable body 1-3力、应力、应变和位移的基本概念 ( Basic concepts of force、 stress、 strain and displacement) 1-4杆件变形的基本形式(The basic forms of deformation)