提高切削效益的途径有几种？

What are people wearing in the 21 st century? Scientists believe that in the near future, high—tech（高科技）clothing will make our lives more interesting. Take a look here and see some great inventions.
Some say Speedo swimsuits helped world champion Michael Phelps move faster in water  小题1: This gives clothes many new functions（功能）.
Now many clothes makers begin to use new fabrics（纺织品）like nanofiber（纳米纤维）. The clothes made from these fabrics can keep away stains（污渍）and creases（皱褶） 小题2: 
Clothes makers also use eco—friendly materials in clothing. Most of them come from old clothes. newspapers or even plastic bottles.   小题3:  Many clothes makers like Li-Ning make clothes from this low-carbon material.
As the Internet has become part of our life, everyday objects are becoming part of a network.
Clothing is, too. For example, a US company has developed a pair of pants.  小题4:
Scientists put sensors（传感器）inside the pants and then connect them to a computer. When people put the pants on, the sensors collect information about the body and send it to the computer.  小题5: .

A. People don't have to wash them or iron them frequently. B. Reusing materials will help us to cut down on carbon emissions（碳排放）. C. High-tech clothing is made from old clothes, newspapers or even plastic bottles. D. It can see your movement and “let a computer know your every move”. E. Today there's more and more technology in clothing. F. Scientists believer this technology will help us learn more about our bodies. G. Clothes makers can make more and more money in the future.