STEP3 Finding out some important and difficult points by the dictionary,translate them with students. Following the teacher.
1.carve vt.
【合作探究】(to make or form by or as if by cutting) 雕刻,切开;努力取得;
(1) 把一块石头雕刻成像。(Carve a block of stone into a statue.)
vi. 从事雕刻,谋求,瓜分;phrases: carve one’s way开辟道路;carve up划分,瓜分;
(2)The invaders caved their country up.
2. scarce adj.缺乏的,不足的
【合作探究】
(1)Good fruit is scarce in winter, and costs a lot.(冬天鲜美的水果少,所以价格昂贵。)
【同义词辨析】
scarce 主要指有用的一般事物,但目前数量不够。rare 通常指罕见而有价值的事物
uncommon=unusual 指因不经常发生而值得注意的事物。
【实战演练】
1.Can you name some______ elements?
A scarce B rare C uncommon D unusual