Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Many birds and animals lived beside the water,which was full of fish.Now there are few birds,animals,and fis

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Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Many birds and animals lived beside the water,which was full of fish.Now there are few birds,animals,and fis
Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.
Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Many birds and animals lived beside the water,which was full of fish.Now there are few birds,animals,and fish.The lake water is polluted(污染).It is a colour of dirty brown,and it is filled with strange plants.
How did this happen?First,we must think about how water gets into Lake Ponkapog.When it rains,water comes into the lake from all around.In the past,there were forests all around Lake Ponkapog,so the rainwater was clean.
Now there are many homes around the lake.People often use chemicals(化学品) in their gardens.They use other chemicals inside their houses for cleaning or killing insects(昆虫).There are also many businesses.Businesses use chemicals in their machines or shops.Other chemicals fall onto the ground from cars or trucks.When it rains,the rainwater picks up all the chemicals from homes and businesses and then .carries them into the lake.They pollute the water and kill the animals.
Boats on the lake are also a problem.Lake Ponkapog is a popular place for motorboats.But oil and gas(油和汽)from boats get into the lake.So more bad chemicals go into the water this way.
People in Hartwell are worried.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 careful about gas and oil and other chemicals on the ground.And they mustn't use motorboats any more on the lake.All these may change people's lives.Only then can Lake Ponkapog be a beautiful,clean lake again.
why is the water dirty in the lake Ponkapog

Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Many birds and animals lived beside the water,which was full of fish.Now there are few birds,animals,and fis
People ,Businesses often use chemicals in their gardens.
the rainwater picks up all the chemicals from homes and businesses and then .carries them into the lake.oil and gas from boats get into the lake.

为什么是thirty years ago 而不是thirty years before? Thirty years or so ago什么意思? How was Shenzhen thirty years ago?意思 Thirty five years ago和Thirty five years before有什么区别?不解.. Tom left his home thirty years ago 同义句转换 my grandpa joined the party thirty years ago 改同一句my grandpa___,__-,___ the party for thirty years My father joinde the Party thirty years ago.同意转换My father___ ___ ___the Party for thirty years Tom married Kate thirty years ago.(改为同义句)Tom___ ____ ____ ____ Kate for thirty years . He has joined the party thirty years ago.其中,has ,joined party,thirty years ago分别为ABCjoin不是瞬间动词吗，怎么一个回答也不提。 thirty years on 是什么意思?---------------------------------------|-------------|--------|-------------|--------时间轴 50年前 30年前 20年前现在 50 years ago,food deliveries was…… thirty years on ,foo how many people ____there thirty years ago 1.will 2.were 3.are 4.will be Thousands of people _______ the earthquake thirty years ago (die) 要原因 These shoes cost (thirty yuan)two years ago.括号部分提问 Over thirty years ago he left his hometown .Over 可以换成什么 These shoes cost thirty yuan two years ago.(对划线部分提问） ------------- thirty years before,they had moved to their cosy house.这里为什么用before不用ago? There (be)not so many people in our town thirty years ago. 英语翻译This story ＿＿＿＿＿＿ about thirty years ago