题目内容：

    The idea of turning recycled plastic bottles into clothing is not new. During the last five years, a large number of clothing companies, businesses and environmental organizations have started turning plastics into fabric to deal with plastic pollution.But there’s a problem with this method. 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 and microfibers for 10 years now. He explains that every time synthetic (合成的)clothes go into a washing machine, a large number of plastic fibers fall off. Most washing machines can’t collect these microfibers. So every time the water gets out of a washing machine, microfibers are entering the sewers and finally end up in the sea.

In 2011, Browne wrote a paper stating that a single piece of synthetic clothing can produce more than 1, 900 fibers per wash. Browne collected samples from seawater and freshwater sites around the world, and used a special way to examine each sample.He discovered that every single water sample contained 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 absorb other pollutants.

Based on this evidence, it may seem surprising that companies and organizations have chosen to turn plastic waste into clothing as an environmental“solution.”Even though the science has been around for a while, Browne explains that he's had a difficult time getting companies to listen. When he asked well-known clothing companies to support Benign by Design—his research project that seeks to get clothes that have a bad effect on humans and the environment out of the market, Browne didn’t get a satisfying answer. Only one women’s clothing company, Eileen Fisher, offered Browne funding.

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 synthetic clothes?

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 or pollution?

D. Are human beings moving forward or backward?