题目内容：

    Plastic can be found almost in everything. That includes toys, cars and computers. Most plastic cans should be recycled. However, many types of plastic are often thrown away. Much of the plastic rubbish ends up in the ocean. It gets there mainly from litter on land and over-flowing sewers (下水道).The rest is thrown directly into the seas. It's reported that about 8 million tons of plastic flows into the seas each year. That's equal to a garbage truck full of plastic every minute. Plastic can not fully break down, so once it reaches the ocean it will float on the sea or sink into the bottom and then it may kill the wildlife.

In response to this problem, the United Nations (U.N.) hosted its first-ever Ocean Conference. At the conference, the UN’s 193 member nations reached an agreement. They agreed to try their best to protect the ocean from pollution. "The sea has a special relationship with all of us in the world, but the relationship is under threat now," said Antonio Guterres, the secretary-general of the UN.

Countries in Asia have agreed to take some measures. The promise from China, Thailand,and Indonesia is hopeful. They produce up to 60% of all marine plastic waste-because of leakage (泄露) from underdeveloped garbage-collection facilities.

Good news is that some scientists and companies worldwide are developing ways to keep plastic out of the ocean. They are trying to remove it and recycle it. For example, the Dell, a computer company, is creating laptop packaging (包装) from recycled plastic rubbish.

Dell predicts that the project will prevent 16,000 pounds of plastic from entering the ocean.“We hope to encourage more companies to do something for the growing environmental issue," Carly Tatum says, who is a Dell spokeswoman.

However, environmentalists are not so optimistic. They warn that there is no quick way to prevent plastic pollution. Maybe the real solution is that every country in the world should make stronger laws on the plastic pollution.

1.According to the passage, how do people usually deal with most plastic?

A.By recycling it. B.By burying it.

C.By throwing it away. D.By making it harmless

2.What does "this problem"in Paragraph 2 refer to?

A.The ocean is seriously polluted

B.The wildlife in the ocean is dying out.

C.Plastic fails to fully break down.

D.Too much plastic rubbish flows into the ocean.

3.What does the writer think is probably the best way to prevent plastic pollution worldwide?

A.Producing less plastic waste.

B.Taking measures to recycle plastic.

C.Encouraging all countries to make related stricter laws.

D.Developing more ways to keep plastic out of the ocean.

4.What's the topic (话题) of the passage?

A.Plastic pollution in the ocean. B.The influence of plastic on the environment.

C.Debates on plastic recycling. D.Measures on protecting the ocean.