《2025年人教金学典同步练习册同步解析与测评高中英语选择性必修第二册人教版》

四、阅读理解（共两篇，满分20分）
阅读下面的短文，从每题所给的A、B、C、D四个选项中选出最佳选项。（共5小题；每小题2分，共10分）
When you think of the Arctic, you probably imagine an icy land of pure white snow. Many also imagine it as the last really clean place left on Earth. We have polluted the deepest oceans with plastic rubbish, and now, it’s the Arctic’s turn.
German scientists have recently found microplastics (微塑料) in the Arctic’s snow. Microplastics are pieces of plastics that are smaller than 5 millimetres in diameter. Remarkably, the scientists found 1,800 pieces of microplastics per litre of snow.
So how is plastic pollution reaching the Arctic? According to one scientist, “It’s readily apparent that the majority of the microplastics in the snow come from the air.” They fall off plastic objects and are moved by the wind, just like dust. They mix with ice in the air and fall to the ground as snow. Finding the plastics in the remote Arctic snow means that they are sure to be found all over the world. In fact, an even larger quantity of microplastics were found in the snow around the cities that were studied. Due to the small size of microplastics and their ability to travel through the air, researchers now believe that they may cause significant air pollution. If the microplastics are small enough, they can be inhaled (吸入) and stay in our bodies for a long time, which could have harmful effects in the long term. In fact, some studies have already shown that microplastics may increase the risk of lung cancer, heightening the need for further investigation.
Microplastics have also been found in rivers and oceans around the world. Research has shown that they flow over very long distances, damaging ecosystems along the way. Many people are unaware that microplastis are also released when we wash our clothes. Tiny plastic fibres are released from our clothes into the waste water and then flow into rivers and out to the sea. These fibres are then eaten by sea animals, meaning that when people eat seafood, they could also be eating plastics.
So how bad are microplastics for us? Scientists are unwilling to answer this question for now. We do know that our bodies are safe from taking in large pieces of microplastics, but the microplastics in the air and water are becoming harder and harder to avoid. Fortunately, governments around the world are now realising the importance of reducing plastic pollution, and scientists are working together to find a global solution.
56. Where do the microplastics in the Arctic’s snow come from?
A. From the sky.
B. From the ocean.
C. From waste water.
D. From sea animals.
57. Why do scientists need to study more about the microplastics in our bodies?
A. Our bodies can take in small pieces of microplastics.
B. Microplastics may harm our eyesight.
C. Microplastics may lead to lung cancer.
D. Earlier studies didn’t succeed.
58. What is to blame for plastic pollution?
A. The weather.
B. Microplastics.
C. Air pollution.
D. Human activities.
59. How can microplastics enter the human’s body?
A. People breathe them in when playing with snow.
B. People may breathe in small pieces of microplastics.
C. People spread microplastics when washing clothes.
D. People breathe them in when swimming with sea animals.
60. What might be the best title for this passage?
A. Plastic Pollution Does Harm to Our Health
B. Air Pollution Is Becoming Serious
C. Plastic Snow Falls from the Sky
D. The Arctic Is Solution to Plastic Pollution

答案： 56. A 57. C 58. D 59. B 60. C