1、掌握构件强度、刚度和稳定性的概念,明确材料力学这门课的基本任务和学习目的。 2、深入理解变形固体基本假设的内涵和意义, 3、准确理解分布内力的概念、弹性体受力与变形应满足的3个关系

Directions: In this part, you will hear ten short statements. The statements will be spoken only once. After each statement, there will be a pause. During the pause, you must read four choices marked A, B, C, and D, and decide which is the best answer. Then mark the corresponding letter on the Answer sheet with a single line through the center

1. Listening Comprehension(每题1分,共20分) 1.c2.c3.b4.b5.c6.c7.b8.b9.c10.b11.12.a13.a14.a15.b16.d 17.d18.b19.d20.B

Lead-in activities What is ethics in our country? Honesty and modest are two basic ethics in our country. A society with ethics is a society with prosperity, so is business. 2. By far, which country is the relatively clear country in the world? Why? Singapore. two possible reasons: near-perfect welfare system; high salary for all the working people

5.1问题的提出和数学模型 一、引例:某企业生产I、Ⅱ两种产品,其生产的参数 如表中所示。在制定生产计划时要考虑如下内容: (1)依据市场反馈信息,I产品出现滞销,预测表明 ,两种产品的生产比例大致保持1:1为宜; (2)设备能力尚有机动的余地,B设备必要时可以加班, 但希望加班时间愈少愈好;A设备较为重要,所以既希望 能力能够被充分利用,同时又尽量少加班;

Section A Longing for a New Welfare System The Objective of the Teaching 1. Let the students grasp some new words and phrases 2. Learn the figurative language and how to describe some persons or some things. 3. Let the students have a better understanding of the life of the disabled

Background information your ho their potential The hyde school In 1966, Joseph W. Gauld founded the first Hyde school in Bath, Maine in response to a system of education which hebelieved was failing its children because of conflicting priorities. His search for a new approach in education led to a program that valued attitude over aptitude, effort over ability, and s

1.1线性规划概述(1) 线性规划的广泛应用是计算机时代的产物。1902年, Julius Farkas发表论文,阐述有关线性规划问题

1.深入理解应力、应变的概念;熟练掌握虎克定律。 2.理解从变形协调、物性与静力学三方面分析由内力求应力的材料力学基本方法。 3.掌握横截面上正应力的一般表达式。 4.熟练掌握拉压杆横截面上正应力、平面弯曲正应力、斜弯曲正应力的计算与分布规律

Step One: Leading-in Activities: 1. Watch the short movies of Chaplin. 2. Discussion: (1) What do the famous people's lives look like in your eye? (2) Do you want to be famous one day? Why or why not? And (3) What do you usually do in your