2A	2B
	Unit 1 Do you like winter? 练习题 Unit 2 At the zoo 练习题    Unit 3 What can you see? 练习题 Unit 4 My toys 练习题 Unit 5 At school 练习题 Unit 6 Let’s count 练习题 Unit 7 Can I help you? 练习题 Unit 8 Keep the water clean! 练习题 Unit 9 Where’s the plane?练习题 Unit 10 Goodbye!练习题

2A	2B
	Unit 1 Do you like winter? 练习题 Unit 2 At the zoo 练习题    Unit 3 What can you see? 练习题 Unit 4 My toys 练习题 Unit 5 At school 练习题 Unit 6 Let’s count 练习题 Unit 7 Can I help you? 练习题 Unit 8 Keep the water clean! 练习题 Unit 9 Where’s the plane?练习题 Unit 10 Goodbye!练习题