Warming up、Pre-reading、Reading、Comprehending优质课一等奖教案

应城一中合教中心英语备课组

编审：张翠萍

选修九Unit2 Sailing the Oceans Warming up & Reading I. Warming up What is the difference between a navigator and an explorer? Navigator is somebody who ________________________________________________________ Explorer is somebody who _________________________________________________________ Look at these famous people. Are they navigators or explorers? What do you know about them?

________________

________________

________________ II. Pre-reading Look at the pictures and identify the four basic instruments for navigation in ancient times:

1._______________2._______________ 3.__________________4. _________________

Which ones do you think are still used today? ______________________________________ How do you think seamen found their way before modern accurate methods of navigation were invented? III. Reading

Read about what navigation was like before modern instruments were used. 1. Fast-reading (Page 1) How did seamen explore the oceans before latitude and longitude made it possible to plot a ship’s position?

Using nature

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_____________________________________ 

_____________________________________ 

_____________________________________ 

_____________________________________ 

_____________________________________ 2.

Listening for Details

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Using celestial bodies use the North Star to ________________________________________________________ use the sun to ______________________________________________________________ use the clouds to ____________________________________________________________ 

Using wildlife If seaweed was fresh and smelled strongly, _______________________________________ Sea birds could be used to _____________________________________________________ 1

应城一中合教中心英语备课组

编审：张翠萍



Using the weather The fog was used to _________________________________________________________ The winds were used to _______________________________________________________ Fast-reading (Page 2) What skills did sailors use to explore the seas and discover new lands? 

Finding longitude __________________________________________________________ 

Finding latitude ____________ ____________ _______________ _____________________ What is the use of a bearing circle, astrolabe, quadrant or sextant?

(

)

What is the use of a compass?

(

)

A.

to set the course of the ship

B. to measure the position of the ship

C. to measure the speed of the ship

D. to tell the time 3.

Careful reading and Exercises (1) Read the passage and decide whether the following statements are true (T) or false (F). (

)①. It was not until the 17th century that there was secure means of measuring longitude. (

)②. In the 12th century seamen began to use the compass to set the course of the ship. (

)③. The use of a bearing circle, astrolabe, quadrant or sextant is to measure the speed

of the ship. (

)④. The astrolabe was the first instrument to measure the position of the sun. (

)⑤. The fresher the seaweed in the sea was the farther the ship was to land. (

)⑥. The sextant was the most precise and reliable of the early navigational instruments. (2) Fill in the blanks in Ex4 on P14

IV. Summary 1. Summarize what you have learned about the navigational skills before and after instruments were invented. Using nature to help

coastline …

celestial …

wildlife …

weather …

sea …

Using instruments to help

Longitude

compass …

Latitude

the bearing circle …

the astrolabe …

the quadrant …

the sextant …

V. Discussion 1.What have you learnt in this passage? 2. What can you learn from early navigators? VI. Homework 1. Review and read this passage after class.

2. Preview Learning about language. 2