Signs and rules教案

module 2 my neibourhood
unit 4 signs and rules
应掌握的词汇
1.pick v. 拾起         e.g. on his way home, he picks up a purse.
                          在回家的路上他拾到一个钱包。
2.throw v. 扔，投      e.g. throw the ball like this.
                          像这样扔这个球。
3.keep v. 保持         e.g. please keep the classroom quiet.
                        &nbs