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培养学生总结规律，运用结构的能力，并且通过两人合作、小组讨论以及记忆竞赛等形式增强合作意识和提高口语表达能力。
３.情感目标
让学生明白回馈社会的重要性和意义，引导学生树立正确的人生观和职业理想。
三．教学重点和难点
１.对每个学习目标的训练并达到学生熟练掌握，最终达到运用自如的语言输出。
２.学生能够有意识的运用所学结构进行讨论和评价。
四．教学过程
Step1: Warm-up
Ask students to look at four pictures,and talk about what can we do for these people? then let them get to know the first sentence:
It is necessary to help the people in need.
If you want to help more people,you can try to be a volunteer.
Do you want to be a volunteer?
Step2: Presentation: It is + adj. + to do sth[
1. As volunteers,First We should be warm-hearted!Because It’s meaningful to work as a volunteer.
2.Share my experience as a volunteer with students, then ask them to try to use the same sentence structure to describe these behaviours.
It's right to give seats to the elderly.
It's good to help the blind cross the road.
It's helpful to donate money to charities.
It's proper to take care of a lost pet.
It's important to plant more trees.
It's necessary to keep parks clean.
Try to work out the rule of these sentences : It is + adj. + to do sth[来
We can use ‘It's +adj.+to do sth.’ to talk about the feeling of doing sth.
Task1:Discussion
Show some pictures of volunteers’ work, ask students what do you think of volunteers’ work? Try to use the sentence structure: It is + adj. + to do sth[
Step 3:Presentation:It is + adj.+for sb + to do sth
Adjectives:
fantastic
difficult
possible