《2024年仁爱英语同步练习册九年级全一册仁爱版》

Chinese scientists have developed a kind of plastic(塑料) and it could help control the serious plastic pollution in the oceans.
The new material can change in sea water over a few days to several hundred days, leaving small molecules(分子) that cause no pollution.
For a long time, people payed attention to white pollution on land. Plastic pollution in the seas only caught people’s attention when more and more sea animals were dying from it in recent years.
About 4.8 million to 12.7 million tons of plastic waste go into the seas every year. Because of human activities and ocean situations, most of the waste gathers in the north and south Pacific(太平洋), the north and south Atlantic(大西洋) and the central Indian Ocean.
The World Economic Forum(世界经济论坛) has also reported that the total weight of plastic waste in the oceans would be over the total weight of sea fish in 2050. People can find almost all the types of plastics at sea, either on the surface or in the bottom(底部), and they cannot degrade(分解) for many years or even centuries.
A shocking survey about it showed that over 90% of sea birds died from eating plastics.
根据短文内容，回答下列问题。
1. What have the Chinese scientists developed?
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2. How long can the new material degrade in seawater?
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3. How many tons of plastic waste go into the seas every year?
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4. Where can people find all types of plastics?
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5. Why did 90% of sea birds die?
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答案： 1. A kind of plastic. 2. Over a few days to several hundred days. 3. About 4.8 million to 12.7 million tons. 4. On the surface or in the bottom of the sea. 5. Because they ate plastics.