题目内容：

根据短文内容, 从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Everyone can help to save the world

We are all environmentalists now. We all know about acid rain and the ozone hole.   1. As consumers we have the power to make decisions which will contribute to a better world and it is in our power to do what we can to protect the earth.

  2. In this way we have the power to influence retailers (零售商) to sell us these so-called “green” products. Therefore, the supermarkets have understood the message and are now trying to improve their environmental image. They are turning to less wasteful and recyclable packaging. The range of “green” products will continue to expand to meet the growing demand. This message has also reached the manufacturers. 3. They have realized that protecting the environment may start as an advertising campaign but in the hands of intelligent people it can become a very profitable business. Besides, we can do more.

Furthermore, we also know there are other areas where all of us can make a positive contribution to a cleaner, healthier and safer environment.   4. There are a number of ways we can do this. For example, we now know how important it is to have our homes well insulated (隔热). We should choose the best energy efficient technology, such as modern light bulbs which can reduce electricity consumption by 80% over the older ones. We must also work hard to reduce the amount of rubbish we produce. We all produce tons of rubbish and waste disposal has become a big problem. As an environmentally-conscious consumer we should buy products which do not have so much packaging. Also, we should try to avoid non-returnable goods at all costs. In Scandinavia and Germany, for example, plastic bottles and cans are now returnable goods.

In conclusion it is important to emphasize once again the rise of consumer power. We must realize that we are all part of the problem.   5.

A. We can all reduce energy consumption at home and so cut the emissions from power systems.

B. For example, when we walk into a supermarket we can choose to buy environmentally friendly products and reject products which damage our planet.

C. There are some other ways to protect the environment.

D. Companies are developing environmentally friendly products that maintain a high quality and a low price.

E. But what are we doing about these problems?

F. Nevertheless we must also realize that we have the responsibility to be part of the solution.

G. Everybody has the duty to contribute to a cleaner world.