机电行业基础英语下册冯宜丽Unit4课件教学.pptVIP

proverbs and sayings Tongue Twisters Picture A Bag-snatched Event One Sunday morning, there were some people in Zhongshan Park. At a stand, a woman was buying an ice-cream when a young man behind her snatched her handbag away. She shouted: “Stop thief! He’s snatched my bag! ”Hearing this, a few people began to run after him. There was an old man sitting quietly on a bench nearby. As the snatcher was running past him, the old man quickly picked up his umbrella and put it between the snatcher’s legs. The young man fell down on the ground hard. Soon two policemen came in a police car and arrested him. The woman thanked the old man, and the people around praised the old man for his cleverness. Translation Skills 7. This course of study is designed to help those wishing to teach abroad. 8. The earth on which we live is shaped a ball. 他有口才，有风度，但很软弱。 这门课程，按其计划，是为了帮助那些希望在外国任教的学生开设的。 Translation Skills 9. Rockets have found application for the exploration of the universe. 10. The following plan may become available during the next decade. 我们居住的地球，形状象一个大球。 下列计划在10年间可能实现。 在线教务辅导网： 更多课程配套课件资源请访问在线教务辅导网 馋死 PPT研究院 POWERPOINT ACADEMY * * Text A Engineering Materials 人类历史的初期只使用直接取自于自然界的一些物料。石料用于建造简陋的掩蔽所或建筑；边缘锐利的坚硬的石头则用来制造箭头或切割木料、骨头及皮革的刀具；黏土用于制造容器及建筑用砖。黏土制品经焙烧会变得更坚硬而耐水这一发现可能是人类在漫长历史进程中探索出如何使天然材料适应自己的需要方面迈出的第一步。 译文 Text A Engineering Materials 2 Of course, materials have always been vital to human civilization. Three of humanity’s earliest eras are called the Stone Age, the Bronze Age, and the Iron Age, because the civilization of each was almost entirely dependent on the material after which the era was named. But now, in the twentieth century, materials---- not just one, but many---- have become most important factors on which the advance of technology and industry depends. Our progress in space, in electronics, and in atomic energy is directly linked to the solution of crucial materials problems. Even in many of the less glamorous manufacturin