第五单元 Nelson Mandela-a modern hero 第五课时 Grammar ( The Attributive Clause(2) ) 教 学 基 本 内 容 和 过 程 Step 1 Lead-in (Instruction time: 6 minutes) (By asking Ss some Qs about Elias, then lead in some attributive clauses in the reading text. Get Ss to learn the grammar from their book.)