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 corn husks（棉籽）， 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 kings of clothes．"

（1）Clothes are traditionally made of　　

A． natural materials．

B． chicken feather．

C． rice straws．

（2）What are the new clothing materials？　　

A． corn husks and rice straws．

B． cotton and wool．

C． leather and wool．

（3）What does the underlined word "honeycombs" in paragraph 3 mean in Chinese？　　

A． 鸟巢

B． 蜂窝

C． 渔网

（4）Why are chicken feathers better than other materials？　　

A． They are from plants．

B． They are traditional clothing materials．

C． They have small air pockets like honeycombs．

（5）What's the best title of this passage？　　

A． New clothing materials．

B． New clothes．

C． Natural materials．