Slat's life began to change after a holiday trip to Greece with his family when he was 16. What he actually saw in the ocean was an awful lot or plastic waste. From that moment on, Slat dived into a project to find a solution to this alarming problem. Struck by the idea of a floating barrier that could collect plastic, he founded his company, The Ocean Cleanup, at the age of 18. Although the idea was named one of the best inventions of 2015 by TIME magazine, he received negative feedback from the specialists in environmental issues.

Slat was not discouraged and saw his mission as a race against time. It is estimated that up to 14 million tons of plastic enter the oceans from land every year. Plastic gradually breaks down into very small pieces called microplastics, which can eventually enter the food chain.

After five and a half years' hard work, the Dutch inventor launched the world's first ocean plastic cleanup system: System 001. The U-shaped pipe, about 609 meters in length, snakes its way out under the Golden Gate Bridge into the Pacific. These floating barriers will capture plastic waste as the ocean currents flow past. Ships will collect the waste and bring it to land for recycling every few months. According to Slat, if all goes to plan, an array of 60 systems could reduce the amount of plastic there by as much as 50 percent by 2025.

However, there remains a problem: What will happen to the plastic brought back to shore from Slat's systems? It's likely that lots of the waste will eventually be recycled into more single-use plastics that end up back in the oceans. That doesn't mean Slat will give up.

【小题1】What contributes to Slat's idea of solving plastic waste in the ocean?

A．A vacation abroad.	B．Negative feedback from the experts.
C．Diving deep into the ocean.	D．A floating barrier to collect plastic.

【小题2】How does plastic waste harm the world at last?

A．It will pollute the ocean.	B．It will make the ocean too dirty to swim in.
C．It will make it difficult ocean currents to flow.	D．It will be contained in the foods for humans.

【小题3】What can we know about System 001 from the passage?

A．It's the world's best ocean plastic cleanup system.

B．It winds its way into the Pacific.

C．Ships will capture the plastic waste.

D．The amount of plastic will be decreased by a quarter.

【小题4】What is the author's purpose in writing the passage?

A．To praise.

B．To warn.

C．To inform.

D．To entertain.