约5470字。
　　Unit 2 Sailing the oceans
　　Period one : Warming up and Pre-reading
　　Aim :
　　To train the student’s ability of listening and speaking .
　　Contents :
　　I Warming up and Pre-reading
　　1> Introduce the history of sailing the oceans , and ask who are famous in sailing the oceans in history .
　　2> Let students lock at the pictures and answer the questions
　　(1) What is a navigator ?
　　(2) Look at these famous people .Are they navigators or explorers ?
　　What do you know about them ?
　　(3) Can you identify these early navigational instruments seamen used and explain how they are used ? (Picture 2)
　　a _________
　　b _________
　　c __________
　　d __________
　　(4) Which do you think was easier to wort :latitude or longitude ?
　　(5) Which ones do you think are still used today ?
　　(6) what is the difference between a navigator and an explorer ?
　　(7) how do you think seaman found their way before modern accurate methods of navigation were invented?
　　Now read about what navigation was like before modern instruments were used.
　　II listening and speaking
　　1> Listen to the tape and fill in the chart
　　Sailors form Sea or Ocean Skills
　　Phoeniediterranean Used the sky to find
　　North Their way
　　Polynesia
　　2> Use the information form the listening to explain these sailing strategies .
　　1._________________________________________________________
　　2._________________________________________________________
　　Period two: reading
　　Aim :
　　Let students master some language points and understand the text .
　　Contents : Reading : sailing the oceans
　　1> Answer some questions about the text
　　1. How many ways the passage tells us to keep alongside the coastline .
　　2. When can the sailors use the sun to navigate by ?
　　3. What was the first instrument to measure the sun’s position .
　　4. What proved to be the most accurate and reliable of these earth navigational instruments ?
　　5. When did seamen begin to use the pass ?
　　2> Language points :
　　1. voyage : n. long journey , by sea or in space
　　2. mercy : n. kindness ; forgiveness
　　phr : at the mercy of : under the control of 任由……的摆布
　　without mercy 毫不留情地
　　The beat was at the mercy of the rapid river .
　　For mercy ‘s sake 请发慈悲
　　For Cod’s sake
　　3. nowhere adv .not anywhere 无处
　　eg : I went nowhere 不知来自哪里，以不知名状态
　　go nowhere vi 无所成，进行得不顺利