四年级英语上册课件 unit2（闽教版）

课件10张PPT。闽教版四年级英语上册 Unit 2 On Dutyclean the blackboardclose the windowsweep the floorturn off the lightsLet’s clean the blackboard.
Please clean the blackboard.
现在用上面的短语来进行替换。Let’s sweep the floor.
Please sweep the floor.
Let’s close the window.
Please close the window.
Let’s turn off the lights.
Please turn off the lights.Thank you!