Teaching aims:
1. to help students understand what unreal conditions are.
2. to help students understand and use if cause in unreal conditions.
Teaching steps:
Step1. explanation of unreal conditions
There are real conditions and unreal conditions, so help the students to understand what unreal conditions are.
Step2. explanation of if clause
Give the students some examples and help them understand if clause.
Help them to understand if clause in different conditions.
Step3: practice
Ask students to do the exercise at page 40 and understand the unreal conditions well.
Step4: explanations of other things that need to be noted about unreal conditions.
Give some examples about special things on unreal conditions
Step5: practice
Ask students to do more practice and check if they have understand unreal conditions.
