第十二课

Wind direction and wind风向和风力

1. "The first level of light smoke is deflected with the wind, and the second level of wind comes to blow in your face ------" “一级轻烟随风偏，二级风来吹脸面······”

2. How to describe the size of the wind?怎样描述风的大小呢？

3. Material package: straws, colored cardboard, nails, play-doh, double-sided tape, etc.材料包：吸管、彩色卡纸、铁钉、橡皮泥、双面胶等。

4. Activity process活动过程

5. Let's observe the wind我们来观测风

6. The wind is coming from the east.风从东方来。

7. The wind level today ------今天的风级······

8. The direction of the wind is the direction in which the wind is blowing.风向就是风吹来的方向，

9. If the wind is blowing from the east, it is called the east wind.如从东方吹来的风叫东风，

10. The wind blowing from the northwest is called the northwest wind.从西北方向吹来的风叫西北风。

11. North wind, northeast wind, east wind, southeast wind, south wind, southwest wind, west wind, northwest wind北风、东北风、东风、东南风、南风、西南风、西风、西北风

12. How do you know the magnitude of the wind?怎样知道风力的大小呢？

13. No wind, soft wind, light wind, breeze, and wind, clear wind,无风、软风、轻风、微风、和风、清风、

14. Strong wind, brisk wind, gale, gale, gale, storm, hurricane强风、疾风、大风、烈风、狂风、暴风、飓风

15. Level 0 smoke column straight to the sky, level 1 smoke with the wind,0级烟柱直冲天，1级青烟随风偏，

16. Level 2 light wind blowing face, level 3 leaves moving red flag exhibition.2级轻风吹脸面，3级叶动红旗展，

17. Level 4 wind blowing pieces of paper, level 5 with leaves of small trees shaking.4级风吹飞纸片，5级带叶小树摇，

18. Level 6 umbrella walking difficult, 7 level wind walking inconvenience, 6级举伞步行艰，7级迎风走不便，

19. Level 8 wind blowing branches short, level 9 roof flying tiles,8级风吹树枝短，9级屋顶飞瓦片，

20. Level 10, the tree is uprooted and the house is fallen, level 11 and 12 are rarely seen on land.10级拔树又倒屋，11、12级陆上很少见。

21. Wind power is the strength of the wind, the meteorological use of wind turbines expressed.风力是风的强度，气象上用风机表示。

22. Make your own wind vane.自制风向标。

23. What kind of wind vane to make?做个什么样的风向标？

24. I want to do this.我想这样做

25. Extension activity拓展活动

26. Use the homemade wind vane to observe the wind direction continuously for a week.用自制的风向标持续观测一周的风向。