有些化学反应的速率很快 炸药的爆炸、水溶液中的酸碱反 应、感光反应等瞬间即可完成

6.1离子键和离子结构 1.离子键的形成 离子键-一正负离子间通过静电作用力而形成的化学键

1.高分子基本概念 2. 高分子化合物的结构 3.高分子化合物的性能

延安大学：《大学物理》课程教学讲稿（白少民）教学日历（普通物理，上）

第十五章碳族元素 15-1通性 15-2单质化合物性质 15-3元素化合物的水解性

Pre-reading Activities Structure of the Passage Intensive Study Expressions Patterns After-reading Activities Translation Writingo

《新视野大学英语》课程PPT教学课件（第二册）New Horizon College English新视野大学英语 Book Two Unit Nine Section A Stop Brain Drain

《新视野大学英语》课程PPT教学课件（第二册）New Horizon College English新视野大学英语 Book Two Unit Two Section A Environmental Protection Throughout the World

Try to find out all expressions showing graceful hands” in our text.How many times? Find out words of Mrs. Clark Pick out descriptions about ward and Mrs Clarks physical conditions

Lead-in Questions 1. Are you iron deficient 2 How would you know? a, tired b have reduced ability to exercise. C have poor stamina d get frequent infections e are lethargIc