unit2__I'll_help_to_clean_up_the_city_parks___邱淑萍_Section_A__3a-3c.pptpage1Unit 2I’ll help to clean up the city parks. Section A 3a-3cpage2If you volunteer, you will be like a pigeon ,you can bring people peace and beauty!What does the sign mean?It means volunteering. What does it look like?It looks like a hand, also looks like a pigeon(鸽子).page3Watch a video, page4volunteers志愿者What do they do?page5 ..