problems 1. unsafe drinking water which has led to healthy problems for people living near the river.

2. harmful effects on the ecology of the area, killing many plants and animals.

3. endangered the wild animal population. causes Rapid agricultural and industrial development plus huge population

growth has meant that not only is the amount of water taken from the

river rising, but the waste being put back into the river has also been

increasing. measures set up environmental organizations and projects to deal with the problem What have been done? 1. The Green River organization educates and advises people on the importance of protecting this great river. Watches the river. Stops the illegal hunting of animals.

2. Government projects work out possible solutions to the many problems, such as the water and soil preservation. Result in farmers replacing the crops on their farmland with trees or grassland. a nature reverse for white-flag dolphins

C. Language points

　Now we are familiar with the passage, let me explain some key language points for you.

1. raise: 引起；造成

　e.g. His absence raised fears about his safety. 他的不在引起人们对他安全的担心。

The use of animals in scientific tests raises some difficult ethical questions.

用动物做科学试验引起了一些棘手的道德问题。

A funny remark raises a laugh. 滑稽的话惹人发笑。

2. plus: 加, 加上, 和

　e.g. Three plus two equals five. 三加二等于五。

This work requires intelligence plus experience. 这项工作需要才智和经验。

I found myself plus nearly 100 yuan. 我多得了近一百元。

All the children here are 12 plus. 这里所有的孩子都大于十二岁

3. neither / nor / no / never: 也不

　e.g. It is neither hot nor cold in winter here.这里冬天既不热也不冷。

There is neither river nor stream nearby.附近既无河流也没小溪。

He does not do it, nor does he try.他没有做, 也没尝试一下。

She can't get there at four, nor can I.

Not a man nor a child was to be seen in the village.

I never saw him again, nor did I hear from him.

4. recognize 认出,认清, 认识到

　e.g. I recognized Peter although I hadn't seen him for 10 years.

虽然我有10年没看到彼得了，但我认出了他。