Questions on the text 1. Why and how do people change their attitude towards environment? 2. How did Canada protect its fish supply and what was the result? 3. What measures did Costa Rica take to protect its remaining forest? 4. What does the writer think of Brazil's environment protection?

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

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

• Reading Skill • Structured Writing • Listening Practice • Oral Practice • Assignment

Chapter 1 Aerodynamics: Some Introductory Thoughts The term \aerodynamics\is generally used for problems arising from flight and other topics involving the flow of air. Ludwig Prandtl, 1949 Aerodynamics: The dynamics of gases, especially of atmospheric interactions with moving objects. The American Heritage Dictionary of English Language, 1969

1. Learn and master new words expressions and proverbs and be able them in actual situations 2. Grasp the uses of the present perfect tense and the present perfect progressive tense 3. Develop the students ability of listening and speaking 4. Grasp the main idea of the dialogues and texts, and be able to answer the related questions

disrespected) social class: \the clones\. One expert believes the situation could be comparable to what occurred in the 16th century, when Europeans puzzled over how to classify the unfamiliar inhabitants of the Americas, and endlessly debated whether or not they were humans

• Revision of Text A • Text B • Listening Practice • Assignment

Text Analysis: Main Idea and Devices for Developing It New words Main idea of the Main idea of each text and devices part and devices Text for developing it for developing it Transcript

Part I Paper Writing Section I. The composition of an Academic Paper I The title 1. Features: brief clear ② attractive noun phrase