In our daily life， much plastic package is used just once and then thrown away． According to a new study from the University of California， 9% of this is recycled， 12% is burnt and 79% goes to landfill． And because most plastic doesn't biodegrade， once it's in the ground， it stays there． （1）The study also shows that eight million tons of plastic waste are pouring into the sea every year．
Scientists have calculated the total amount of plastic ever made： 8.3 billion tons． That's as heavy as one billion elephants． And almost all of it has been made in the last 65 years．
（2）每个人都应该参与拯救地球． Protecting the environment is protecting ourselves． If the environment is taken good care of， we can have clean water and green mountains． （3）绿水青山或是金山银山．
What can we do as students？ Just say no to single﹣use plastics like straws， cups and bags． Many people love to drink from a straw or use plastic to carry things， but they are really bad for the environment．
（4）Bring your own chopsticks if you're planning to eat outside． It can be hard to remember．
Just put a pair of chopsticks in your bag before you leave home．
You know you're going to need some water to get you through your day． So carry a bottle（or a cup） with you． （5）That will help you avoid plastic bottles．
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这位社会工作者经常去老年之家帮助老人．
The often goes to the old people's home to help the elderly．
今天早晨我们吃光了所有的蔬菜，最好去超市买一些．
We all the vegetables this morning， so we buy some in the supermarket．
在周末，小汤姆和他的朋友们要么在家看电视，要么在外踢足球．
Little Tom and his friends either at home or outside at weekends．
他们认为一天刷两次牙是一个好习惯．
They think it's a to brush teeth ．
他当时别无选择只能放弃那份工作．
He then．