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While-reading:
(1)Read the whole passage silently and match Column A with Column B.
(2)Read the paragraph in groups and fill in the blanks.
(3) Listen to the tape and follow it then write T or F in blanks.
(4) Read paragraph 3 loudly and answer the questions below.
Work in groups: Retell the passage in groups according to the mind-maps.
Post-reading: How do these inventions help us in our daily lives.