Warming up、Pre-reading、Reading、Comprehendingppt课件课堂实录

Reading

sailing the oceans Teaching Aims:

a. Let students have some knowledge of early navigation methods.

b. Train the students’ reading ability. Let the students have some knowledge of early navigational methods.

c.

Inspire students to explore more about ancient travelling after class.

Teaching Difficult Points: a. How to help the students understand the reading passage better. b. How to improve the students’ reading ability.

Teaching Methods: a. Scanning the text to get the general idea of it. b. Carefully reading to finish the Comprehending exercises on page 14. c. Discussion after reading to make the students understand the text better. Teaching Aids: The multimedia; the blackboard Teaching procedures & ways

Step1 Greetings Greet the whole class as usual.

Step2 Pre-reading Show the students some pictures to see if they can identify the early navigational instruments seamen used and explain how they used. Step3 fast reading

What did people use to help sailing?

____________

nature _______________

_______________

________________

________________

Finding longitude

instruments

finding latitude

step3 careful reading(p1) 1.Using celestial bodies North star to__________________________________ Sun to __________________________________ a special cloud formation indicates ________________________ 2.Using wildlife If seaweed was fresh and smelled strongly,_________________________ Sea birds could be used to_______________________________ 3.Using the weather Fog to __________________________ Winds to __________________________

4.Use the information to analyze the navigational skills and write the answers in your own words. 1).To find the ship’s position at sea a sailor used _______________________. 2).A sailor knew that land was nearby if he saw______________________________ 3).Sailors used _______________________________ to increase their speed. Careful reading (page2)

There were two methods to find longitude:

1. ________________________________________________________________

2.________________________________________________________________ What is the use of a bearing circle, astrolabe, quadrant or sextant?

(

)

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 Write down the working principles of the following instruments: Bearing circle:

____________________________________________ Astrolabe:

________________________________________________ Quadrant:

________________________________________________ Sextant:

_____________________________________________________ Step4 discussion What would you do if you came across the following problems during your voyage? What would you do if: Plan of action You were far from land and a

storm arose. You knew your latitude but

didn’t know your longitude.

You were blown off-course.

You were offshore but you

needed more food and water. You wanted to keep a

straight course. You were lost with no land

in sight.

Step5 Summary

This reading explains how seamen explored the oceans and what kind of navigational instruments were used to sailors before the seventeenth century when they were navigating the open seas without seeing the land. Step6 Homework After class try to collect more information about sailing or navigation, sort it out and prepare to

make a presentation next class.