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 :
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 compass ?
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
get sb nowhere 某某事对某人无帮助、元效
4. reference n. act of mentioning ; act of looking at for information .
phr : (1) have reference to 和… …有关系
(2) in reference to 关于
(3) make (a) reference to 说到 谈到
(4) reference book 参考书刊号
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