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句型：
It is fantastic to work as a volunteer.
It is important for people to learn good manners.
Any help would mean a lot.
It is kind of these volunteers to work in their spare time.
教学过程：
Step1: Lead in
First, learn some new words of this lesson. Use some pictures to present.
For example: What are the students doing?
They are donating some money.
教师让学生用完整的句子回答，若学生回答不正确，教师可进行指导。
Step 2: Presentation
Grammar A: It is + adjective +to do sth
Show some pictures of volunteers, and give two examples to describe them. Then let the students discuss how to describe the other two pictures.
The teacher says: although we can’t be a volunteer now, we can also help others in our society.让学生完成课本第84页的练习，全班核对答案。
让学生以小组的形式讨论以上句子的结构特点，教师同时呈现以上句子的陈述句形式。 教师说：We use “ It is + adjective + to do sth” to express what we think about some thing.
Grammar B: It is +adjective + for… +to do sth
Enjoy a video, and then make sentences with the phrases.
It is necessary for the parents to set good examples before their children.
It is important for the children to do something for their parents.
Make more sentences with the same structure:
eg: It is necessary for the students to take exercise.
It is difficult for the students to get up early.
It is dangerous for everyone to cross the road carelessly.
It is meaningful for everyone to help others.
Can you make a sentence with“It is+adj. +for sb.+ to do sth.” to talk about your daily life?
Show time.
学生完成课本第85页的练习，全班 核对答案，集体朗读对话。
.学生总结：We use “I t is + adjective + for… + to do sth” to specify who we are talking about. 即我们对某人做某事的感受。
Grammar C: It is +adjective + of …+ to do sth