[精] Unit 10 On the farm Let’s talk 课前预习单(目标导航+培优练习)
[精] Unit 12 In the park Let’s talk课前预习单 (目标导航+培优练习)
[精] Unit11 In the zoo Let's talk课前预习单(目标导航+培优练习)
[精] Unit12 In the park Let's learn课前预习单(目标导航+培优练习)
[精] Unit 1 Hello Let’s play Let’s act课前预习单(目标导航+培优练习)