Learning procedure:
STEP1: Revision
(1):listen to the tape, correct pronunciation, follow the tape. of all the words and expressions
(2) Check up the following preparation-translation
1.geological adj._______; n.________ 2. plateau n._________
3.carve vt.________ 4. paddle vt._________
5,uninhabited adj.________, 6.warlike adj.________
