learning aims: 1. learn the text and know something about dances. 2. try to retell the text 一、自主学习自主学习《全优课堂》period lesson 4, p39 --- p43,并完成其中相关的练习。 二、课内探究 1、预习展示与点评。(7′) 2、即练即评:英语周报第15期b4版 l4 随堂练习。(8′) 3. reading. read the text quickly and put the sentences below in the correct gaps in the text. use the strategies to help you. (10’) a) in the mid-1980s, breakdancing became popular. ( 5 )