A smart home in the future 

   What kind of house are you going to buy? Do you often forget to turn off your light when mmmm iHSiVi ?li you leave a room? Well the house in the future can help you. We can visit this kind of house called Smart Home at the Museum of Science and Industry in Chicago Illinois.

   The Smart Home can greet you when you walk in the door. It can also turn on the lights television and music player for you when you come into the room. And when you leave the  house it can turn them off. It is called Smart Home because it makes your life easier.

   All the materials (材料) of the Smart Home is green. It is made of recyclable materials like used bottles. 

   On the top of the house there is a vegetable garden. The house can use the sun in different ways. For example we can use the sunlight to warm the house in winter. We also use a solar sun oven (太阳能炉子) to cook food.

   Although it is expensive to build such a house it is cheap to live in.

根据短文内容，选择最佳答案。

( ) 1. What does“recyclable” mean in Chinese according to the passage?

   A. 破旧的   B. 可循环利用的

   C. 绿色的   D. 高级的

( ) 2. Why is it called a Smart Home?

   A. Because it is beautiful.

   B. Because it makes life easier.

   C. Because there is a garden on the top.

   D. Because it uses the recyclable materials.

( ) 3. What's on the top of the house?

   A. A solar oven. B. A beautiful park.

   C. A vegetable garden. D. A used bottle.

( ) 4. How many ways are mentioned to use the sun power?

   A. Five. B. Four. C. One. D. Two.