In the early days of sea seamen on long voyages lived exclusively on salted meat and biscuits of them died of scurvy(坏血病), a disease of the blood which causes swollen gums, livid white spots on the flesh and general exhaustion. On one occasion in 1535, an English ship arrived in Newfoundland with its crew desperately ill. The mens lives were saved by Iroquois Indians who gave them vegetable leaves to eat. Gradually it came to

It is hard to get any agreement on the accurate meaning of the term \social class\. In everyday life, people tend to have a different approach to those they consider their equals from that which they assume with people they consid er higher or lower than themselves in the social scale. The criteria we use to“place new acquaintance(熟人), however, are complex mixture of factors. Dress, way of speaking, area of residence in a given city or province

If the salinity(含盐量)of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation-conversion of liquid water to water vapour. In this manner,the salinity is increased, since the salts stay behind. If this is carried to the extreme,of course, white crystals of salt would be left behind; this, by the way,is how much of the table salt we use is actually obtained

Intensive Study Weeping for My Smoking Daughter Para. My daughter smokes. While she is doing her homework, her feet on the bench in front of her and her calculator clicking out answers to her geometry problems, I am looking at the half-empty package

Background Information Organization of the Text Introductory Questions Text& New Word Reading Intensive Study Exercise Check--up Assignment

艺术·Art abstract art:抽象派艺术 A nonrepresentational style that emphasizes formal values over the representation of subject matter. 强调形式至上,忽视内容的一种非写实主义绘画风格 Kandinsky produced abstract art characterized by imagery that had a musical quality

Background Information 1. A Red Red Rose 2. Racial prejudice in America 3. Marriage customs

College English 3 The Course Curricular Participants: Second-year Students Majoring Time: 9/2001-2/2002 First semester of the Academic Year 2001-2002 Teaching Material: College English (Revised edition published by Shanghai Foreign Language Education Press)

College English 2 The Course Curricular Participants: First-year Students Majoring Time: 2/2001-6/2001 Second semester of the Academic Year 2000-2001 Teaching Material: College English (Revised edition, published by Shanghai Foreign Language Education Press) Major Task of This Semester Text Learning (nine units altogether) Learning to write English composition Integral Training: trying to improve the students' proficiency in reading, listening, and speaking

College English 1 The Course Curricular Participants: Second-year Students Time: 9/2001-2/2002 First semester of the Academic Year 2001-2002 Teaching Material: College English (Revised edition, published by Shanghai Foreign Language Education Press) Major Task of This Semester