Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was _1 of life. Many birds and animals lived beside the 2_, which was full of fish. Now there are _3 birds, animals and fish. The lake water is polluted. It is in a color of dirty brown, and it is filled with strange _4.
How did this 5_? First, we must think about how water gets into Lake Ponkaog. When it rains, water comes into the lake from all around. In the 6, there were forests all around the lake. People often use chemicals(化学品) in their garden. _7 use other chemicals inside their houses to clean or 8_ insects(昆虫). There are also many businesses. Businesses use chemicals in their machines or shops. Other chemicals fall into the ground from cars or trucks. When it 9_, the rainwater pocks up all the chemicals from homes and businesses and then _10 them into the lake. They pollute the water and kill the animals.
Boats on the lake are also a 11_. Lake Ponkapog is a _12 place for motorboats. But oil and gas from boats often get into the lake. So more chemicals go into the water this way.
People in Hartwell are _13. They love their lake and want to save it. Will it be possible? A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are more careful about chemicals at home and at work. They must also be more 14_ about gas and oil and other chemicals on the ground. And they mustn’t use motorboats any more on the lake. All these may 15_ people’s lives. Only then can Lake Ponkagon be a beautiful, clean lake again.
1. A. full B. empty C. none D. sign
2. A. bank B. hills C. grass D. water A. little B. a little C. few D. a fe |
