目标 1. learn the important words and useful expressions in this whole unit. novel; adventure, author, scene, make a bet, bring up, permit, go ahead, by accident, stare at, account for, seek, on the contrary, take a chance, in rags, as for 2. study the pronunciation of the key words. 3. preview the whole unit. 重点 to get familiar with the pronunciation and meaning of the key words and expressions 二次备课
