教学过程

教学过程                                                       Time

I．              Organization                                       (1’)

          Greeting each other

II.     Revision                                          (5’)

1 Check the homework exercise.                 

2 .Practice the dialogue in SB Lesson 61，Part1 again.

3.Call two students to come to the front and show this dialogue.

4. Put a map of the World on the blackboard. 

5.Ask students to tell the names of as many oceans and seas of

of the world as they know                             

6. What is happening to the sea now?

III.                Presentation                                             (6’)

1.       Information about the sea

(Play the Tape Recorder)

2.       Pre-reading Discussion(04教育资源网，转载请注明)

Discuss the Questions in groups of four

1)      How does sea water stay clean?

2)      How salty is the water in the ocean ? 3.5%,11% or 25% ?

3)      Where is the saltiest lake in the world ?

4)      How much of the earth’s surface is sea? 45%,56%or 71%?

                ( The purpose of  this discussion phase is to arouse students interest in the topic and to get them verify their guesses when they read the text.)

IV.               Study of the text                                         ((04教育资源网，转载请注明)20’)

1.      Fast reading

( Get the general ideas of the text )

2.      Note making

1)      How salty are different lakes and seas?

 (04教育资源网，转载请注明)

2)      What conditions are needed for coral to grow in the sea ?

a.       A water temperature above 20C

b.      Light

c.       Clean water(04教育资源网，转载请注明)

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