The global movement to get rid of plastic has led to concern about single-use plastic tea bags, with many people now considering them wasteful and potentially dangerous. New research by a team at McGill University found that a tea bag soaked (浸泡) in 95℃ water released 11.6 billion units of microplastics and 3.1 billion smaller nanoplastic particles (微粒). The researchers are suggesting that dipping into boiling water makes the tea bags release higher numbers of plastic particles or poisonous substances.
This quantity of microplastics is larger than the amount consumed by a person in an entire year, so the question remains whether the consumption of microplastics is harmful to the human body. Worryingly, when exposed to these levels of microplastics, water fleas (水蚤) were noted to show body and behavior abnormalities. For a nation that consumes up to 60.2 billion cups of tea a year, this has caused concern. While there is no evidence that these micro-plastics affect human health, the UN has said more research is needed to fully understand the effect microplastics have on the body.
It is not only plastic tea bags that contain chemicals. 96 per cent of paper tea bags sold in the UK contain polypropylene—a chemical used to close the openings. This chemical can makeup 25 per cent of the bag.
Some brands such as the Co-op and PG Tips had already adopted 100 per cent compostable (可堆肥的) ten bags due to public pressure. While Lidl is exploring the alternative for biological tea bags. Yorkshire Tea is aiming to switch to plant-based materials by the end of the year. The most eco-friendly tea, however, remains loose leaf in a pot or cup.
【小题1】What does the new research show?| A．Tea bags are becoming unpopular. |
| B．Tea bags contain different plastics. |
| C．Tea bags in hot water release bad materials. |
| D．Tea bags should be dipped in cold water. |
| A．Direct. | B．Long-lasting. | C．Insignificant. | D．Uncertain. |
| A．Tea makers are aware of tea bags’ harm. |
| B．The public are particular about tea brands. |
| C．People are concerned about the environment. |
| D．The production of tea becomes eco-friendly. |
| A．A textbook. | B．A technology report. |
| C．A biography. | D．A health magazine. |
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【小题1】If you are not satisfied with this watch within 30 days, you can__________.| A．visit Stauer. com to get your offer code |
| B．ask the company to change it for another one |
| C．call 18003332045 to get your insider offer code |
| D．send it back and ask the company to return the money |
| A．Everyone can buy this watch for only $29. |
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| D．The company can save the cost because they go directly to the source. |
| A．A research report. | B．A book review. |
| C．A popular magazine. | D．A science fiction. |
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【小题1】What is the selling point of the Urban Blue?| A．It was made when Nixon was in office. | B．It is the most precise watch in the world. |
| C．It is designed by the company’s own engineers. | D．It is high in quality but amazingly low in price. |
| A．reveal | B．reflect | C．reform | D．review |
| A．they will reduce the engineering time in the future |
| B．they will sell the watch always at a price of $29 |
| C．customers can wear the watch on trial for 3 months |
| D．customers can return the watch for a full refund within 30 days |
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【小题1】The purpose of the passage is ______.
| A．to introduce a new magazine | B．to help parents with their daily life |
| C．to attract more subscribers | D．to collect more money for charity |
| A．Only $12 is to be paid for 24 issues of the magazine |
| B．Readers can get a free offer of the magazine any time of the year |
| C．Readers from all over the world can enjoy the free offer |
| D．Readers can communicate face to face with child experts on the Internet |
| A．He can cancel without getting your money back. |
| B．He can cancel after answering a series of questions. |
| C．He can e-mail them to access your bank account to get all your money back. |
| D．He can cancel and get all money back without answering any questions. |
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