Tiny pieces of plastic are everywhere. Now, they’ve been found in bottled water. And the amount is about one hundred times more than scientists once thought.

This is a finding from a study by researchers from Columbia University and Rutgers University. The team tested three brands (品牌) of bottled water sold in the US. They found about 240,000 tiny plastic pieces in a liter of bottled water.

About 10% of these plastic pieces were microplastics (微塑料). And the other 90% were nanoplastics (纳米塑料). The nanoplastic is smaller than a human hair.

Microplastics can pass into our blood, brain and cells (细胞). They have already been found in humans’ blood and waste. However, nanoplastics can be even more dangerous. Their smaller size makes them enter the human body easily.

So can they hurt us? Scientists aren’t sure yet. But earlier research has shown that the chemicals (化学物质) used in plastic production are harmful to our health. They can put people at increased risk of illness. The nanoplastics themselves may not be harmful. But they can act as carriers of those dangerous chemicals.

The researchers hope their work will lead to a better understanding of how much plastic humans put into their bodies. And the study provides more support for past advice to avoid drinking water from plastic bottles. So try to do that from now on!

Zhang Lu is a translator (翻译官) in China. She is famous as a Chinese most beautiful translator. Zhang Lu     1     (be) born in 1977, Shandong. Her mother worked in a hospital,     2     her father worked in a railway station. She was talented in English     3     she was young. She still studied hard in English at school, her desk was always full of English     4     (newspaper) and English books. When she was listening to BBC in the early morning, others were still sleeping in bed. She worked in the Ministry of foreign affairs (外交部)     5     the age of twenty-three. Since then, she     6     (tell) lots of Chinese stories in English to help the foreigners know more about Chinese culture. She says if you want     7     (learn) English well and be     8     good translator, you should study hard and keep learning Chinese stories and beautiful articles, then you can tell     9     (interest) Chinese stories to foreigners, at the same time, improving your English.

We should learn English     10     (good) like Zhang Lu. Wherever we go, we will continue showing our Chinese stories and making Chinese voice heard.

9 . 假定英语课上你们正在就“课堂表现”开展同伴互评活动，下面是你的同伴张军的自我课堂表现记录(Class Record)，请你根据记录内容写一篇短文，总结他五个方面的课堂表现并进行简单评价，然后就他需要改进的两个方面提出建议。

Well done, Zhang Jun! You listened to the teacher carefully in class and__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________