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• Unit 1 Topic 1 I'm going to play basketball.
• Unit 1 Topic 2 I'll kick you the ball again.
• Unit 1 Topic 3 The school sports meet is coming.
• Review of Unit 1
• Unit 2 Topic 1 You should brush your teeth twice a day.
• Unit 2 Topic 2 I must ask him to give up smoking.
• Unit 2 Topic 3 Must we exercise to prevent the flu?
• Review of Units 1-2
• Unit 3 Topic 1 What's your hobby?
• Unit 3 Topic 2 What sweet music!
• Unit 3 Topic 3 What were you doing at this time yesterday?
• Review of Unit 3
• Unit 4 Topic 1 What's the strongest animal on the farm?
• Unit 4 Topic 2 How can we protect ourselves from the earthquake?
• Unit 4 Topic 3 The Internet makes the world smaller.
• Review of Units 3-4