1. to enable the students to know how to keep the advertisements honest. 2. to comprehend the text and get the main idea of the passage and to learn to catch the detailed information by self-directed study and cooperation. 3. enjoy expressing yourself in english 《使用说明与学法指导》 1. 1）先快速浏览了解文章的大意并完成task i., 再快读课文1遍，并完成task ii、task
