7．
阅读理解
It's important to learn things about
protecting environment. Here's a 4Rs rule for us.
·Reduce
If you want to reduce waste, you should
use things wisely (明智的). A large number of
trees are being cut down to make paper. If everyone uses paper carelessly and
then throws it away, soon we would not have any trees left. Some other things
are also being wasted, and people don't know what to do with waste in big
cities, so it's necessary to reduce waste.
·Reuse
You should always think of reusing the
usable (可用的) things before throwing
them away. Give your clothes or things you don't use to the poor. In a family,
you may pass such clothes on to your younger brothers or sisters.
·Recycle
Bottles, cans and paper can easily be
recycled. By doing so we save lots of time and money, for example, cola cans
are sent to a factory, where they're smashed flat（压平）and
smelted (熔化), and the metal things are made into new
cola cans.
·Repair
If one of the legs of your table is
broken, you can repair it. If you want to change for better ones, it's better
for you to sell the old ones or give them to other people who can use them
after doing some repair.
