Question

Plastic snow falls from the sky.

When you think of the Arctic(北冰洋), you may imagine an icy land of white snow. And some people may imagine it as the last really clean place left on Earth. In fact, we have polluted the deepest oceans with plastic rubbish, and now, CNN says, "It's the Arctic's turn."

German scientists have recently found microplastics in Arctic snow. Microplastics are pieces of plastic smaller than 5 millimeters. Sadly, the scientists found 1,800 pieces of microplastics per liter(升) of snow. That may cause terrible air pollution.

How is plastic pollution reaching the Arctic? According to scientists, "It's clear that most of the microplastics in the snow come from the air. They fall off plastic objects and are moved by the wind. They mix with ice in the air and fall to the ground as snow."

Are they bad for us? We do know that our bodies cannot take in "large" pieces of microplastics. However, if the plastics are small enough, they can find ways into our bodies and stay there for a long time, which can be bad for our health.

Microplastics have also been found in rivers and oceans around the world. Research has found that they flow over long distances and into our oceans, damaging ecosystems(生态环境) along the way. When we wash clothes with plastic fibers(纤维), they start in our wastewater. The wastewater then flows into rivers and out to sea. They are eaten by sea animals there. If people then eat these animals, it means that we're eating the plastic as well.

1.According to the passage, the underlined word "microplastics" are pieces of________.

A.plastic bigger than 5 millimeters B.metal smaller than 5 millimeters

C.plastic smaller than 5 millimeters D.plastic smaller than 5 centimeters

2.Most of microplastics in air fall off ________.

A.plastic objects B.the water C.sea animals D.our body

3.Which is the correct order of the following events?

① Wastewater flows into rivers and seas.

② People eat animals in the sea.

③ People wash clothes with plastic fibers.

④ Microplastics are eaten by sea animals.

A.③①④② B.①③②④ C.③①②④ D.③②①④

4.The writer wrote the passage mainly to tell us ________.

A.not to travel to the Arctic

B.not to eat animals

C.to use fewer plastic objects

D.to wear a mask(口罩) when going out

5.Where can the passage probably be taken from?

A.A story book. B.A doctor's dairy.

C.An environmental newspaper. D.A clothes magazine.

Answer

1.C

2.A

3.A

4.C

5.C

【解析】

北极发现微塑料，不仅破坏了生态系统，还会影响到人类的健康。

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