阅读理解
Clothes are traditionally made of natural
materials, such as cotton, leather and wool. They are all from plants or
animals, but that doesn't mean they're friendly to the earth. For example,
farmers have to use a lot of chemicals to grow cotton plants.
Scientists
are now looking for new ways to make clothing materials. They hope the new
materials are both comfortable and good for the earth. Scientists have worked
out how to make materials out of cornhusks (谷壳),
chicken feathers and rice straws.
"They used to be useless things. We
always have a problem of how to deal with them," Yang, a scientist says. "Now,
we can turn them into beautiful materials. Chicken feathers are better than
other things. They have small air pockets like honeycombs. That means it
will be very warm if you use them to make a jacket or sweater, and I think more
and more people will like to buy these kinds of clothes."