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1.Listen to the tape carefully and
answer these questions.
a. Where are Danny, Jenny and Brian?
b. Does Jenny think the cardboard will hold the
water in the jar?
2.Correct your pronunciation.
In the lab.
Yes. she does.
Work in groups
1.Divide the class into five groups.
2.Find the key points in the text.
3.Show and explain them to theclass.
How do we do the experiment?
Let’s do this interesting experiment. First, I ___ a jar ___ a desk, ___ it ____ water, then _____the top ____ a piece of cardboard.When I ____the jar _____ _____ and ____my hand ____ the cardboard, can you guess what will happen?
Learn and Do
put on
fill with
cover with
take off
turn upside
down
let’s summary
What did you learn in this lesson?
1.Finish exercise III in your activity books.
2.Do the experiment at home again.
Homework