03 Unit 3 Exploring the Unknown Reading A Stonehenge-英语沪外版选择性必修第三册

Unit 3 Exploring the Unknown Reading A 授课教师： 张望晴 学习目标 Learning Objectives： At the end of the lesson, you will be able to ... 1.understand the logical structure of the passage and the typical features of an expository writing; 2.figure out the functions of the “Questions” in the passage; 3.build a word bank containing the topic-related words, phrases and expressions. 4.use the word bank to express their ideas in a logical way; Q & A Do you know some world-famous mysterious phenomenon or places? Expository writing – precise; full of statistics; logically coherent … Carefully reading Part 1 (Para1-2) Main Idea Questions Answers the introduction of Stonehenge 1. Where is Stonehenge? On Salisbury Plain in Wiltshire. 2. How much do the largest stones weigh? About 50 tons. Carefully read Part 2 (Para 3-8) Task 1 Phase Time What construction work was done during the phase? Phase I Phase II Phase III Circle Underline Carefully read Part 2 (Para 3-8) Task 2 Main Idea Questions: Answers: the construction work done in three different phases 1. What kind of technology is used to confirm when Stonehenge was built? 1 . T h e i n v e n t i o n o f radiocarbon dating. 2. What might be the function of Stonehenge? / Why was Stonehenge built? 2. Some historians say that it was a kind of cemetery. 3. How far is the mountain of South Wales from Salisbury Plain? 3. About 320 km. 4. What are “trilithons”? 4. Two tall stones with a third across the top. 5. How is the Stonehenge today? 5. About half of the original monument survives while the others have fallen or taken away. Carefully read Part 3 ( Para 9 - 13 ) Main Idea Questions: Answers: different theories about the Stonehenge 1. Who first suggested that Stonehenge should be an observatory. 1. Norman Lockyer first put forward the theory in 1901. 2. Why did Gerald Hawkins say that the Stonehenge was an observatory and a kind of primitive computer as well? 2. Because Gerald Hawkins found that the important stones p