Step 1 Language goal

1、 learn to make inference

2、 some important phrases

Step 2 Lead-in

Look at some pictures,make conversations

Step 3 Learn by yourself

Step4 Discussion

1. Fill in the blanks with must ,may, might, could, can't

2. Finish 2 c

Step 5 Summary

Step 6 Choose the best answer

Step7 Grammar

Step8 Homework

　Make several sentences with can't , might , must , could , belong to

Step9 Blackboard design