Unit 2Ill help to clean up the city park. 教学目标 能掌握以下单词：clean up, city cheer up give up, give out , volunteer , notice , used to , lonely 能掌握以下句型：You could help to clean up the city parks 能了解情态动词could ，should 的用法，并能用could 或者should 给别人提出建议。如何表达主动提供帮助。Language goals: How to offer help.Key sentences: I hope to work outside . You could help to clean up the city parks.New vocabularies: clean up( 打扫干净) hunger( 饥) homeless( 无家的) cheer up( 使高兴起来) give out ( 分发)New words 1.city n. 城市 The library is in th
