Ex. 2.
1.If it's sunny tomorrow, I will go to the beach.
2.If I go to Spain, I will see Madrid.
3. My parents and I will stay at home if there is a storm on Sunday.
4. If it's foggy, my father will not drive a car.
5. My family will stay in the countryside if it's hot and humid in town.
6. My parents and I will have a picnic if it clears up.
Ex.3.
7. The wind was very cold yesterday. Wind is noun.
8. There will be frost tomorrow. Frost is adjective.
Ex.4.
2. There a thunderstorm. It is so dangerous!
5. The weather is awful. There is a severe storm and a heavy rain.
6. There are countries where people haven't experienced severe temperatures. The temperature is always above zero.
7. Please open the window. It is stuffy in the room.
8. Britain is known for its mild temperatures:it's never too hot in summer or too cold in winter.