问题 填空题 案例分析题

下图1是利用人工湿地净化生活污水(主要含有机物)的原理简图,图2为某生态农业发展模式图。

请根据图1回答第(1)(2)(3)题:

请根据图2回答第(4)(5)题

人工湿地是一个生态系统,其中芦苇、绿藻、黑藻属于()(生态系统成分),芦苇属于挺水植物,绿藻属于浮游植物,黑藻属于沉水植物,这一现象体现了群落的()结构。

答案

参考答案:生产者;垂直

阅读理解

To protect the environment, we are on the way. Here are a few things we can do.

Unwanted gifts? Give them away!

Have you ever received a gift that you didn’t like? Did you throw it away? If so, you can have another choice now. Two British companies hopes people will give away their unwanted gifts to them. And they will resell the gifts to raise money for the poor. In this way, the gifts can be refused and have a future life. And people can make a difference to the world.

Wear the trousers that reduce(减少) pollution!

A chemistry scientist and a fashion designer (时装设计师) have created a new kind of trousers. The trousers are made of a new material which can help reduce air pollution around us. Scientists have tested the material. The result shows that it isn’t harmful to human. This new kind of trousers may appear at the market in two years. Professor Ryan said, “If thousands of people wear the trousers, the air quality will be improved.”

Plant trees with Felix

Felix Finkbeiner, a 14-year-old German boy, is not famous as a child actor but an environment hero. At the age of 9, Felix got the idea that children could do something to protect the environment. So he started a club. Felix soon got support from children all over the world. Some of them have become his good friends. The club has an aim of planting 212 million trees. They have planted over 3.5 million trees all around the world. Felix said, “The answer to controlling global(全球的) warming is trees—lots of trees!”

小题1:The companies resell the unwanted gifts      .

A.to make the unwanted gifts useful

B.to help people learn to think carefully

C.to save money from it

D.to make money for themselves.小题2:The trousers mentioned in the passage         .

A.have been created by a physics scientist and a fashion designer

B.can help make air pollution less

C.will do harm to people

D.will be popular in two years小题3:Felix started a club          .

A.to become famous

B.to become a child actor

C.to protect the environment with other children

D.to make friends with the children around the world

问答题 简答题