一 根据课本P72－P73故事的内容，将下列句子按故事发生的顺序排列。
A. Binbin had questions about the solar "oven".
B. Grandpa, Binbin and Robin played outside.
C. They ate the delicious food.
D. Grandpa had an idea to make a solar "oven" for lunch.
E. They did not want to go back to the kitchen.
→ → → →

B E D A C

你能回答故事中Binbin的两个问题吗？ 读一读，圈出正确答案。
1. How does the box keep the heat?
A. It uses sunlight and black paper.
B. It uses gas and electricity.
C. It uses water and wind.
2. Why do we use black paper?
A. Black paper is easy to find.
B. Black paper can get and keep heat.
C. Black paper is cheap.

1. A 2. B