2．We can conclude from the passage that ．

　　A．it is not so difficult to control the erosion along the Yellow River

　　B．everyone can contribute to the control of the erosion

　　C．visitors from all over the world must donate 5 yuan to the control of the erosion

　　D．only government can help control the erosion

　　3．What can't be influenced by the erosion of the land according to the passage?

　　A．The development of local economy.

　　B．The quality of the soil.

　　C．The balance of nature.

　　D．The development of transportation.

　　4．We can infer from the passage that the erosion of the land is caused by ．

　　A．lack of trees　 B．lack of energy

　　C．lack of clean water D．lack of farmland

　　5．Which of the following statements is NOT true?

　　A．The erosion of the land has influenced people's lives.

　　B．A tree­planting programme has changed the Jiuchengong Valley into a beautiful world.

　　C．Only government and international organizations can do something to prevent the erosion from happening.

　　D．5 yuan can count in terms of the prevention of the erosion.

　　【答案】　1－5　ABDAC

　　　阅读P12教材课文，在空白处填入适当的内容(1个单词)或括号内单词的正确形式

Every year，a lot of soil 1. contains materials to keep the natural balance of the Yellow River 2. (remove)．And thus it has caused the Yellow River erosion.3. (face)with the situation，everyone should do his best to change 4. .For a start，we can buy a tree，which will help make soil stay on the land.Then local 5. (farm) can grow crops to make 6. living.And