Ⅰ. 单词拼写
1. It's (有暴风雨的)at Grandpa's place today.
2. I don't like such (干燥的)weather in our city.
3. We should stay in when there's (闪电)outside.
4. Many birds fly to the (北方)for the summer.
5. The (温度)is rising as the day gets warmer.

Ⅰ. 1. stormy 2. dry 3. lightning 4. north 5. temperature

Ⅱ. 拓展词汇变形
1. n. 北部；北；北方→northern adj. 北方的；北部的
2. n. 西部；西；西方→western adj. 西方的；西部的
3. n. 南部；南；南方→southern adj. 南方的；南部的
4. n. 东部；东；东方→eastern adj. 东方的；东部的
5. adj. 运气好的；带来好运的→ adv. 幸运地；好运地→ n. 运气
6. n. 雪人→ n. 雪人(pl.)
7. adv. 大量地；沉重地→ adj. 重的

Ⅱ. 1. north 2. west 3. south 4. east 5. lucky; luckily; luck 6. snowman; snowmen 7. heavily; heavy