People can reduce, reuse, or recycle waste instead of throwing it away. Matt and Sam decided to do an experiment. They wanted to see exactly how much waste the three R's could save.

First, they collected the rubbish from six classrooms at their school. They divided the rubbish into three groups:

●things that were reusable, such as a pencil or a marker that had been thrown away

●things that could be recycled, such as cans, glass, or paper

●things that were truly waste Then, Matt and Sam weighed each of the three groups. They learned that 84% of the total rubbish thrown away that day could be recycled or reused. They decided to do something about it.

Matt and Sam presented the idea of starting a recycling programme to the school leaders. Then they worked with the Student Council. They prepared brochures (手冊) to send home to tell the students and their families about recycling. They stated in the brochure that recycling helps to keep our planet healthy. The school bought colored containers (容器) for each classroom. Each room received a blue container for paper and a green container for glass and cans. They also received a red container for real rubbish.

Within a short time, each classroom in the school was sorting recyclable materials from rubbish before it was thrown. Matt and Sam decided to weigh the rubbish one more time. They wanted to check the school's progress. They collected the rubbish from the red containers from the same six classrooms as before. They sorted the rubbish into three groups again and weighed each group. This time, they were pleased to find that the red containers were filled with 90%waste that should be thrown away. Only 10% of recyclable materials had been thrown into the red containers. Matt and Sam were pleased with their school's effort at reducing waste on our planet.

1.By doing an experiment, Matt and Sam wanted to find out ________.

A.what things could be reused B.what recyclable materials could be saved

C.how much waste the three R's could save D.how much waste their school produced a day

2.What did Matt and Sam do in the recycling programme?

A.They made a speech on recycling. B.They wrote a report to the school leaders.

C.They bought colored containers for each classroom. D.They helped students and their families know about recycling.

3.Which word can best describe Matt and Sam?

A.Responsible. B.Friendly. C.Independent. D.Confident.

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