完形填空（二）（本题共15小题，满分30分）
阅读下面短文，根据文意，将方框内所给的词或短语的适当形式填入相应的空白处，使短文的意思完整。（每个词只能使用一次）（本题共十小题，每小题2分，满分20分）

We all need a healthy environment, but we produce waste every day and it____ our environment. Though we are young, we can still do something to help. In fact, even the simplest ___activities can make a real difference to the environment. Here are some ideas for you.
Reduce means “use less”. Don’t waste things. This ____money and reduces pollution and waste going into the environment. Before we buy something new, think _______it is really necessary—or maybe the old one will be just as good! When we do buy things, choose local products if _______ and try not to buy too many things from abroad.
Reuse means “use again”. Use things for as long as possible. When we buy things, make sure that they ____ a long time. We should look after them___ they will last and we should repair them if we can instead of  throwing them away and buying new ones. Don’t use a paper cup or a paper bag. It’s better to use a china cup and a lunch box because you can use them ____.
Recycle means “change things into something else”. Although it takes ____ to change something into something else, it’s better than throwing things away or burning them. Find out what can be recycled in your___ and take part in recycling programmes. We should also buy products made from recycled materials, such as recycled paper, to help save trees.