例如: (early) this You should go to bed early.
— ________________
— ________________
— No, I don't. ________________
|
A. We should plant more trees. B. What makes the air dirty? C. Why is there dust? D. Where is the smoke from? E. Good for you! |
Miss Fang: Hi, Children!
Kitty: The smoke and the dust (灰尘) make the air dirty.
Miss Fang: Good!
Ben: It's from the cars, buses and the factory.
Miss Fang: Great!
Peter: Because people cut down a lot of trees. The wind blows strongly and there is dust everywhere.
Miss Fang: What should we do to keep the air clean?
Alice:
Miss Fang: Great!
We can get wood from trees.
So please plant more trees.
Trees make our city beautiful.
They keep the air clean and cool.
We can use wood to make paper, desks and chairs.
⑴Are you crying? A. No. My eyes hurt.
⑵How do we use wood? B. We should plant trees.
⑶What should we do to make the air clean? C. It's on 12th March.
⑷When's Tree Planting Day in China? D. Because we need it to keep us alive.
⑸Why is the air very important? E. We use wood to make beds.
Water is very important to living things. Without water, there must be no life on the Earth. All plants and animals need water. Water is needed in factories, offices, schools, families and many other places. Farmers need water to water the crops and vegetables. Workers need water to make things. Firemen need water to put out the fire.
We must save water. Don't waste it!