题目内容：

The hottest “green” toy in Germany isn’t made of organic or recycled materials. This one has a solar panel (太阳能电池板) and only runs if kids remember to insert bright red “energy stones” that power the space station. Germany, a pioneer in many renewable energy movements, is also at the forefront of creating environment-friendly toys aimed at making kids think about where energy comes from and how much of it they can use, raising awareness through play. A number of high-tech green toys are on display at this year's Nuremberg toy fair, which runs through Sunday.

Among them, there are hydroelectric-powered toy cars, and doll houses with wind–powered engine and rainwater catchers. The bright green "Future Planet" space station features inner equipment with a fan that is powered by a functioning solar cell. Its aim is to get kids to use their imagination about how energy will be created in the future.

Makers and retailers believe such toys will play an increasingly important role in their future and that of our kids. "Energy is the question of the future and we are definitely thinking about this as we move ahead," said Judith Schweinitz, a spokeswoman for Playmobil, maker of the solar panel-fitted space station. "It is increasingly being brought into our play concept." she added. Studies indicate that green toys which range from those made of sustainable materials to ones like the space station that just raise environmental awareness are becoming more and more popular in the international toy market.

1.The purpose of making the green toys is to ________.

A. give kids the knowledge of technology

B. improve the safety of toys

C. raise kids’ awareness about energy and environment

D. improve kids’ imagination

2.According to the text, ________ uses solar energy.

A. the “Future Planet” space station    B. the doll

C. the doll house    D. the toy car

3.What can you infer from the last paragraph?

A. Energy is only a question of the future and we needn’t care now.

B. The trend in the international toy market is more and more green toys to raise environmental awareness will hit the market.

C. Energy has been brought into our play concept too much according to Judith Schweinitz.

D. The green toys made of sustainable materials haven’t become popular yet in the international toy market.

4.The hottest “green” toy in Germany is ________.

A. made of organic or recycled materials    B. made of green stones

C. driven by an advanced motor    D. equipped with a solar panel