重点短语
at the bottom of the river 在河床底部be full of the rubbish 充满垃圾throw litter into the river 把垃圾扔进河里play a part in cleaning it up 尽一份力把它清理干净land pollution 土壤污染fill the air with black amoke 空气中充满黑烟cut down pollution减少污染make a difference 产生污染turn action 采取行动turn off 关掉pay for 付费add up 累加use public transportation 使用公共交通recycle books and paper 回收书籍和废纸turn off the shower 关掉喷头ride in cars 开车出行
重点句型
Even the bottom of the river was full of rubbish. 即使河底都满是垃圾。Everyone in town should play a part in cleaning it up.城里的每个人都应尽一份力把它清理干净。The air is badly polluted because there are too many cars on the road these days.空气被严重污染因为如今路上汽车太多。To cut down air pollution, we should take the bus or subway instead of driving. 为了减少空气污染，我们应当乘坐公共汽车或者地铁而不是开车。I used to be able to see stars in the sky. 我过去能在天上看到星星。The air had become really polluted around here. Im getting very worried. 这的空气真的已经被污染了，我非常担心。No scientific studies have shown that shark fins are good for health. 没有科学家研究证明鱼翅对人们的健康有益。
