Question

听下面一段独白，回答以下小题。

1.How long have Earth Boxes been in market?

A.About 15 years. B.About 25 years. C.About 30 years.

2.What can Earth Boxes be used to do in poor countries?

A.Solve hunger problems.

B.Improve soil conditions.

C.Teach students science.

3.What is the advantage of Earth Boxes?

A.Saving much space.

B.Purifying much water.

C.Making crops grow fast.

4.Why are Earth Boxes used in middle school?

A.To learn math well.

B.To grow vegetables.

C.To do some experiments.

Answer

1.B

2.A

3.A

4.C

【解析】

【原文】

M: Growing crops in containers saves water. It needs little fertilizer(肥料). In addition, the chemicals cannot run off into nearby waterways. The same earth mixture can be used for five or six years.

Since Earth Boxes went on sale in 1994, many people around the world have used them. Other people have made their own vegetable growing boxes. Some use two large plastic containers. One container has holes in the bottom and sits inside the other box. Earth mixture goes into the top container, and water goes through a tube into the bottom box. A plastic trash bag is then used to cover the top container.

Some people think this kind of gardening will be important to people in poor countries where hunger is a problem. A lot of food can be grown in a small space for a small amount of money.

The people who make Earth Boxes are interested in educating young people. They have developed a program aimed at teaching students science and agriculture. When children first enter elementary school, they learn about water, soil, light, and nutrition. In middle school, they do experiments and collect information. In high school, they learn how to use math to better understand what happens when plants grow. The learning program includes written materials for teachers and students. And it uses an Earth Box in the classroom as a small laboratory for experiments.