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Teaching Aids:
Multi-media, some cards of words and phrases and reading materials.
1. Pre-task 1.Daily talk
2.Review the sentences:
The …was…
Now it is …
The… were…
Now they are…
1. Ask and answer the questions.
2. Have each student describe the picture .
3. Call on some students to talk about the picture.
4. Have students compare two pictures, then talk about the difference.
To stimulate the Sts’ interests and elicit the theme.
While-task
It was…
Now it is….
New word:tadpole
1.Show the pictures about the change of the duck.
2.Practice the new sentences according to the pictures.
3.Show the pictures about the change of the frog.
4.Teach the new words: tadpole
5.Have students look at the four pictures of the butterfly”s life-cycle.
6.Put the pictures in the correct order.
7.Have the students talk about the change of the butterfly.
8.Have students read P39 aloud by the recorder. Compare the changes of the duck、the frog and the butterfly now and the past.
To grasp how to use the past tense.
Post-task
Provide a reading material of the sea horse.
Writing
1.Have students read the story silently.