题目内容：

    The idea of turning recycled plastic bottlesinto clothing is not new. During the last five years, a large number of clothing companies, businessesand environmental organizations have started turning plastics into fabric to deal with plastic pollution.But there’s a problem with thismethod. Research now shows that microfibers could be the biggest source of plastic in the sea.

Dr. Mark Browne in Santa Barbara, California, has been studying plastic pollution andmicrofibers for 10 years now. He explains that every time synthetic clothes go into a washing machine, a large number of plastic fibersfall off. Most washing machines can’t collectthese microfibers. So every time the water getsout of a washing machine, microfibers are entering the sewers and finally end up in the sea.

In 2011, Browne wrote a paper stating that asingle piece of synthetic(合成的) clothing can producemorethan 1, 900 fibers per wash. Browne collected samples from seawater and freshwater sites around the world, and used aspecial way toexamine each sample.Hediscovered that every single water samplecontained microfibers.

This is bad news for a number of reasons. Plastic can cause harm to sea life when eaten. Studies have also shown that plastic can absorbother pollutants.

Basedon this evidence, it may seemsurprising that companies and organizations havechosen to turn plastic waste into clothing as anenvironmental“solution.”Even though thescience has been around for a while, Browneexplains that he's had a difficult time gettingcompanies to listen. When he asked well-knownclothing companies to support Benign byDesign—his research project that seeks to getclothes that have a bad effect on humans and theenvironment out of the market, Browne didn’tget a satisfying answer. Only one women’sclothing company, Eileen Fisher, offered Brownefunding.

1.What has happened during the past five years?

A. Fabric has become much stronger.

B. Plastic pollution has been less serious.

C. Many plastic bottles have been reused.

D. Microfibers have been greatly improved.

2.What does Browne think of washing syntheticclothes?

A. It is adding microfibers to the clothes.

B. It is worsening environmental problems.

C. It is making synthetic clothes last longer.

D. It is doing great damage to washing machines.

3.What can be inferred about Browne’s Benignby Design research project?

A. It has achieved great success. B. It hasn’t got anything done.

C. It is known to very few people. D. It is facing some difficulties.

4.What’s the best title for the text?

A. It’s important to learn to recycle

B. It’s never easy to solve pollution problems

C. Recycled plastic clothing: solution orpollution?

D. Are human beings moving forward orbackward?