Student Book Unit 3

1. Water that flows naturally along a fixed route formed by a channel cut into rock or ground, usually at ground level
5. Worried and nervous
8. A very large metal box used for transporting goods
9. Weather is not very cold or not as cold as usual
11. A dangerous or serious situation, such as an accident and needs immediate action
12. The sudden loud noise that comes from the sky especially during a storm
13. A strong wind in a desert carrying a large amount of sand
15. Weathher with clouds
16. A tube inside which liquid or gas flows from one place to another
19. A mass of rock and earth moving suddenly and quickly down a steep slope

2. A violent wind that has a circular movement, found in the West Pacific Ocean
3. The season of heavy rain during the summer in hot Asian countries
4. A large amount of ice, snow, and rock falling quickly down the side of a mountain
6. An extreme weather condition with very strong wind, heavy rain, and often thunder and lightning
7. Full of light, shining
10. A unit of measurement of temperature, often shown by the symbol ° written after a number
14. Unable to not doing something as a habit
17. A very strong wind
18. A severe snow storm with strong winds
20. Things that made by people
21. A lot of rain in a short time