unit 1 art period 2 language points learning aims: 1. to understand the new words and expressions according to the context. 2. to be able to use the new words and expressions in speaking and writing properly. 3. to master as many words related to the key words of this unit as possible. important point: to be able to use the new words and expressions in speaking and writing properly. learning guidance: 1自学《同步测练》要点精解，并完成即讲即练，有疑问的地方作好标记。2 认真阅读 课文，完成预习案task 2&3，如果有必要，查阅词典。训练案previewing case task 1 完成《同步测练》要点精解
