西安建筑科技大学：《大学英语》课程教学资源（现代大学英语，PPT课件讲稿，第三册）lesson10_background information

西安建筑科技大学：《大学英语》课程教学资源（现代大学英语，PPT课件讲稿，第三册）lesson 2_language study

西安建筑科技大学：《大学英语》课程教学资源（现代大学英语，PPT课件讲稿，第三册）lesso13_language study

大学英语辅导_2006年大学英语四级听力60个必考习语详解

大学英语辅导_大学英语四级常见词根词缀

大学英语辅导_大学英语四级语法精要

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

21-1杨氏双缝干涉 21-2相千光 21-3光程 21-4薄膜干涉 21-5迈克尔逊干涉仪

Leading-in Activities: Discussion 1. What's your definition of money? 2. What attitude should we take toward money? 3.what’ your fantasy?