1 . The mangrove tree might not look very impressive, but it is an essential part of our ecosystem. However, more than half of the mangrove forests have been destroyed in the past century. Several World Heritage Sites have been listed largely because of their mangrove ecosystems. Among them are the Sundarbans across India and Bangladesh, the Everglades National Park in the US, and the Great Barrier Reef in Australia.
Being a World Heritage Site requires for the mangroves to be protected. However, one country in Asia has gone further by having a five-year program to protect and conserve all their mangroves. They even have a mangrove museum and observe World Mangrove Day. This country is Sri Lanka. Why are mangrove trees so important to Sri Lanka and to other countries where mangroves grow?
The mangrove tree grows along coastal saltwater shorelines. They have adapted to the harsh coastal weather and have deep roots. This means that they are strong and cannot be easily removed. In countries where natural disasters such as tsunamis and cyclones occur, the forests provide protection. The villages in Sri Lanka with full mangrove forests have suffered less damage when hit by these natural disasters. The reason is that the mangroves break up the force and strength of the waves.
The mangroves also quickly absorb carbon dioxide and send oxygen into the atmosphere. This makes them an important part of the fight against climate change. They absorb far more carbon dioxide than other types of forest, and store it in their structure and even in the soil. This is important as carbon dioxide in the atmosphere is believed to be a cause of detrimental changes in the weather, such as global warming.
The strong roots also provide protection for young fish as they grow. With the oceans around the world being overfished, it is important to maintain the ecological balance in the oceans. For Sri Lanka, one of the threats to the mangrove forests is the shrimp farms being set up. To build saltwater ponds for the shrimps, the mangroves are cut down. This has resulted in fewer fish surviving among the mangrove roots and fewer fish being caught by the fishermen. The local fishing communities noticed that they were losing money and it made them aware of how important the mangroves were. They are now helping to conserve the forests.
Sri Lanka is showing that a nation can preserve all of its mangroves. The conservation model they have can be used by other countries. It might take many years of planning, but the benefits of saving mangroves definitely outweigh the costs.
1. What do we know about the mangrove trees from the passage?| A．They are mainly grown in Australia. |
| B．They can prevent young fish from growing. |
| C．They have been damaged by natural disasters. |
| D．They are less impressive but important to the ecosystem. |
| A．A world mangrove festival has been founded. |
| B．Saltwater ponds for the shrimps have been set up. |
| C．A 5-year mangroves protecting program has been started. |
| D．More mangroves along the coastal areas have been grown. |
| A．The mangroves can keep the ecological balance in the oceans. |
| B．The mangroves are essential for fighting against climate change. |
| C．The mangroves have deep roots and hold the soil in place firmly. |
| D．The mangroves can break up the force and strength of the waves. |
| A．Positive. | B．Negative. | C．Doubtful. | D．Unclear. |
2 . The first year of Beth Walker's quest for a zero-waste lifestyle, the rubbish in her life wouldn't have filled a wastepaper basket. But now she's stopped keeping track.
Her journey began after a talk by eco-group The Rubbish Trip in 2017. Like most people, she thought recycling was enough to save the planet from drowning in plastic.
But the reality is that most packaging isn't accepted by recycling companies and the plastic in our oceans is still snowing.
Nowadays, Beth's belief is to refuse, repair, and reuse. She refuses to buy anything that comes in a packet. Local bakeries and butcheries, she found, would happily provide food in her own container.
Then she moved to Wellington, and things got a bit harder. Many bulk (散装) food stores were only open during work hours, and she gratefully turned to the regional shopping guides put out by The Rubbish Trip.
She took every chance to show off her "take everywhere bag " , which contains a cloth for hand drying and cleaning，a keep cup, and a container.
Most importantly, she says, it's a privilege (荣耀) to make these choices. But she's cautious not to push her ideas down people's throats. "It's what's sustainable for you personally," she said.
Most rewarding was seeing the effect on those around her. Her dad proudly told anyone who would listen how his daughter was going waste-free. Her flat mates also agreed to go waste-free when cooking for the flat and to remote the bin from the kitchen. And every plastic container they brought into the house was another for Beth's collection.
1. What made Beth choose a zero-waste lifestyle?| A．A speech she listened to. | B．Other students' influence. |
| C．The products of poor quality. | D．The lack of recycling factories. |
| A．Reusing a paper bag. | B．Relying on recycling companies. |
| C．Repairing a broken tool. | D．Refusing objects in a packet. |
| A．To influence others. | B．To show her kindness. |
| C．To prove her wealth. | D．To highlight her privilege. |
| A．Mixed. | B．Unconcerned. |
| C．Supportive. | D．Unclear. |
3 . Not only does the use of plastic water bottles hurt your wallet, it also increases pollution and wastes energy and water. Only 23% of all plastic in America ends up in a recycling bin, meaning over $ 1 billion worth of plastic is treated as rubbish a year. Recently, Skipping Rocks Lab has invented a kind of water bottle called Ooho.
It is a convenient, clear water bottle that can either be drunken or eaten. To drink it, you can either peel off the membrane (薄膜) or tear a hole in the membrane with your teeth to pour the water into your mouth. To eat it, you simply put the whole bottle in your mouth. One problem the scientists have run into is how to ship large amounts of Ooho bubbles(水泡) without arriving with a very wet truck. However, they have attempted to package units of individual bubbles together inside a larger and thicker membrane. It is targeting large outdoor events, such as marathons, music festivals, and sporting events, where tons of plastic bottles are used, and frequently left behind as litter. And too much plastic is sure to do harm to the environment, which could account for their purpose of such a new invention.
The team has been working for the past two years to develop the technology and materials needed to produce Ooho; they have recently applied a patent for their new advancements. The price for an individual bubble or a unit of bubbles has not been set yet, but they cost about two cents to create a unit, which is cheaper than plastic bottles. It has appeared at events in London, San Francisco, Boston, at conferences, festivals, and so on.
Ooho is catching many people’s attention and has raised over $ 1 million and gained 1,000 investors in only three days. It is mostly being sold at events at the moment to keep the consumer’s interest while the production machine is getting up and running. It is quickly making a rise,so keep an eye out this year for these bottles of the future.
1. How is most plastic dealt with in America?| A．It’s sold. | B．It’s recycled. |
| C．It’s buried. | D．It’s wasted. |
| A．To make a profit for a company. | B．To protect the environtnent. |
| C．To make people eat as they drink. | D．To reduce the cost of plastic bottle. |
| A．It is easy and safe to ship it in large amounts. |
| B．It has become popular since it began to be sold. |
| C．It might be sold at a lower price than plastic bottles. |
| D．It cost the team a lot of money to develop the technology. |
| A．Ooho is to be a success in the future. |
| B．Ooho is being supported by smart people. |
| C．Ooho is taking the place of plastic bottles now. |
| D．Ooho is being produced to attract more investors. |
