1 . A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below16℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover, these areas would reflect more heat into the atmosphere, warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters all over the world.
In the past hundred years, humans have begun destroying rainforests in search of three major resources: land for crops, wood for paper and other products, land for raising farm animals. This action affects the environment as a whole. For example, a lot of carbon dioxide(二氧化碳)in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.
There are two main reasons for this. Firstly, when people cut down trees generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run it actually reduces the world’s wood supply.
Rainforests are often called the world’s drug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than 1% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests.
1. Why can rainforests help to adjust the climate?| A．They reflect more heat into the atmosphere. |
| B．They bring about high rainfall throughout the world. |
| C．They reduce the effect of heat from the sun on the earth. |
| D．They rarely cause the temperature to drop lower than 16℃. |
| A．There is great medicine potential in rainforests. |
| B．The level of annual rainfall affects wind patterns. |
| C．We can get enough resources without rainforests. |
| D．We will grow fewer kinds of crops in the gained land. |
| A．Rainforests and Medical Development | B．Rainforests and the Environment |
| C．How to Save Rainforests | D．How to Protect Nature |
1.比赛目的；
2.比赛过程；
3.比赛反响。
注意：1.词数100左右；
2.可以适当增加细节，以使行文连贯；
3.提示词：保护生态环境，建设绿色家园 Protecting the Eco-environment；Building a Green Homeland
An English Speech Contest
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3 . Rainwater in cities causes more troubles than wet feet. It carries away waste from rooftops and streets as it washes through cities. European scientists are now trying to work out how to deal with flooding rainwater.
In the city of Wetteren, Belgium, researchers are experimenting with seashells. Millions of shells from the nearby North Sea are used to collect and treat rainwater from a shopping-mall roof and a parking lot. The shells are laid below a surface drain (下水道) through which dirty water is carried away. With a 70% empty space that allows them to store rainwater, they’re also a natural cleaning station, which is then used to water community gardens.
The experiment is part of a project called StopUP whose goal is to prevent rainwater from carrying pollutants into lakes and rivers. The project’s focus is to make sure that such wastewater, which can include everything from plastics to heavy metals, gets treated.
Thomas Jeffery, head of the College of Environmental Engineering in Germany, said a big knowledge gap can exist between the popular perception of rainwater and its true content. “Rainwater seems to be very clean, but when it washes the streets and roofs, it becomes full of dust and other harmful pollutants,” said Thomas.
In Europe, 38% of surface waterbodies have different forms of pollutants, which run deep in the ground and damage soils, plants and animals, according to Julie Rosalie, director of the European Environment Agency. Human health depends on clean water for drinking, bathing and cooking, and now we arc at risk because plants and animals are affected by chemicals in rivers, lakes and coastal waters.
“StopUP technologies and methods could provide tools to reduce rainwater pollution.” Rosalie said. “It has a positive effect on the quality of our common environment.”
1. What are the seashells in the experiment used for?| A．Clearing the polluted rainwater. | B．Repairing a shopping mall. |
| C．Making gardens more attractive. | D．Carrying away waste in cities. |
| A．Promoting the use of seashells. | B．Reusing plastics and heavy metals. |
| C．Experimenting ways to treat rainwater. | D．Encouraging people to stop water pollution. |
| A．Understanding. | B．Custom | C．Style. | D．Tendency. |
| A．More tools are needed to reduce water pollution. |
| B．StopUP helps to improve the environmental quality. |
| C．38% of surface water in Europe is free from pollutants. |
| D．Human beings are in danger because of a lack of water. |
4 . A report from the UN warns that countries’ current commitments would reduce carbon by only about 7.5% by 2030, far less than the 45% cut, which scientists say is needed to limit global temperature rises to 1.5℃, the aim of the COP26 summit (峰会).
Antonio Guterres, the UN secretary-general, described the findings as a “thundering wake-up call” to world leaders, while experts called for action against fossil fuel companies.
Although more than 100 countries have promised to reach net zero emissions (净零排放) around mid-century, this would not be enough to avoid climate disasters, according to the UN emissions report, which examines the shortfall (差额) between countries’ intentions and actions needed on the climate. Many of the net zero commitments were found to be unclear, and unless accompanied by strict cuts in emissions this decade would allow global heating of a potentially disastrous extent.
Gutierrez said: “The heat is on, and as the contents of the report show, the leadership we need is off. Far off. Countries are wasting a massive opportunity to invest Covid-19 finance and recovery resources in sustainable, cost-saving, planet-saving ways. As world leaders prepare for COP26, that is another thundering wake-up call. How many do we need?”
Inger Andersen, the director of the UN Environment Programme (UNEP) said: “Climate change is no longer a future problem. It is a now problem. To stand a chance of limiting global warming to 1.5℃, we have 8 years to almost halve greenhouse gas emissions: 8 years to make the plans, put in place the policies, carry them out and deliver the cuts. The clock is ticking loudly.”
Emissions fell by about 5.4% last year during Covid lockdowns, the report found, but only about one-fifth of the economic recovery spending goes towards reducing carbon emissions. This failure to “build back better”, despite promises by governments around the world, cast doubt on the world’s willingness to make the economic shift necessary to settle the climate crisis, the UN said.
In the run-up (前期) to COP26, countries were supposed to submit (递交) national plans to cut emissions—called nationally determined contributions (NDCs) —for the next decade, a requirement under the 2015 Paris climate agreement. But the UNEP report found only half of countries had submitted new NDCs, and some governments had presented weak plans.
1. Why were the findings described as a “thundering wake-up call” in Para. 2?| A．Because the world has failed to live up to its current commitments. |
| B．Because the opportunities presented by covid-19 have been wasted. |
| C．Because the world is falling behind in slowing down temperature rises. |
| D．Because the serious problems were brought about by global fossil fuels. |
| A．strict measures are taken to reduce emissions |
| B．current commitments of many countries remain unchanged |
| C．huge gaps are bridged between previous and present proposals |
| D．global sustainable environmental resources develops significantly |
| A．To show the number of alarm clocks required. |
| B．To explain the reason for the world’s wasting chances. |
| C．To ask for the number of the countries attending the meeting. |
| D．To stress the need to make the most of resources and reduce emissions. |
| A．Few countries have submitted plans to reduce the emissions. |
| B．Many countries’ plans to cut emissions are far from satisfactory. |
| C．Most of the countries work under the Paris Climate Agreement. |
| D．Much progress in reducing emissions his been made these years. |
5 . Bringing species like beavers (河狸) back to England is no longer a priority, the government said on Friday to criticism from wildlife groups.
A recent report shows that one in six UK species are at risk of extinction. In September more than 60 conservation organisations reported a significant decline in species due to expansions in farming and the effects of climate change. In recent years, animals and plants have been reintroduced by charities as part of efforts to restore the country’s reduced biodiversity.
Despite the government allowing this, the Environment, Food and Rural Affairs Committee concluded in July that there was an absence of long-term plans on how to manage this. In response, the government has now said that the “reintroduction of species is not a priority”.
The government said it was focused on increasing biodiversity through habitat restoration. The government’s environment department has come under scrutiny (详细审查) for not doing more to prevent sewage dumping and other forms of pollution in England’s waterways.
Sir Robert Goodwill, chair of the Committee, said he was disappointed with the government response. Bringing back extinct species is a controversial issue — although farmers and landowners appear broadly supportive, there are risks of reintroducing new species, and without clear guidance, problems could arise.
A recent study showed that river barriers similar to those built by beavers can protect communities at risk of flooding. But there have also been cases documented in Europe where beavers have built their dams in places that have damaged crops and changed rivers.
Joan Edwards, director of Policy & Public Affairs at The Wildlife Trusts said, “Reintroducing wildlife must be part of the UK government’s arsenal (武器) for tackling nature loss and climate change — it is astonishing there is no strategy for doing so.”
“The return of wild beavers can help to recreate lost wetlands, with a knock-on effect that benefits other wildlife including insects, invertebrates and birds. Beavers also slow the flow of water, which can reduce flood risks to towns and villages,” she said.
1. What does paragraph 2 want to convey?| A．The situation of species in the UK is severe. |
| B．Reintroduction of species in the UK is not a priority. |
| C．Expansions in farming have a great effect on climate change. |
| D．The UK government’s response to reduced biodiversity is disappointing. |
| A．By developing strategy. |
| B．By offering guidance. |
| C．By expanding farming. |
| D．By restoring habitat. |
| A．It was messy. | B．It was limited. |
| C．It was beneficial. | D．It was costly. |
| A．The advantages of reintroducing wildlife. |
| B．The responses to a government statement. |
| C．The effects of climate change on farming. |
| D．The approaches to increasing biodiversity. |
When Peter Sänger and Liang Wu got together, it
Their invention, the CityTree, acts as an air purifier, an interesting
The CityTree combines
The German green-tech start-up is now funded by the European Commission. A CityTree network of 15 brand new units will be set up and tested in a
7 . After most people complete their undergraduate degree, they either take a break or jump into a job. Few, like Brianna Craft, set out to save the world.
It started when she was a freshman sitting in an environmental studies class in 2006. Craft was shocked when the professor described the harm climate change was having on people. She records the moment in her new book, Everything That Rises: A Climate Change Memoir.
After graduation, Craft spent a year in AmeriCorps, focusing on protecting the environment. AmeriCorps is an organization connecting individuals and organizations to help communities tackle their toughest challenges. “That helped me figure out that my future was not in doing science,” she says. Instead, she wanted to work with people and policy.
She then had an opportunity to attend the UN climate negotiations (磋商). That, in turn, prepared her for her current role as a senior researcher at the London-based International Institute for Environment and Development (IIED). Her focus is to ensure that the lowest contributors to greenhouse gases and those most affected by climate change have a voice in international climate negotiations.
For five years, Craft attended and supported climate conferences around the world, leading to the signing of the Paris Agreement in 2015. Craft says, “I wanted people to care about the work I did in the climate negotiations, and why we pushed so hard to form this agreement.” That led her to write Everything That Rises: A Climate Change Memoir.
Craft brings the viewpoint of an African American woman from a rural northwest community. She weaves (编织) together several storylines-including her difficult childhood with an irresponsible parent, her self-discovery in college and her work to help work towards climate agreements and ensure that even the smallest countries have a voice.
1. What motivated Craft to work on climate change?| A．A course. | B．A book. | C．A scientist. | D．A program. |
| A．She made achievements. |
| B．She fell in love with science. |
| C．She got inspiration for her book. |
| D．She was clearer about her career path. |
| A．She promotes equal rights to speak among countries. |
| B．She focuses on removing greenhouse gases in London. |
| C．She ensures climate negotiations are the UN’s top priority. |
| D．She speaks for the countries producing the most greenhouse gases. |
| A．Boring. | B．Risky. | C．Fruitful. | D．Well-paid. |
1.活动目的；
2.活动内容；
3.活动反响。
注意：
1.写作词数应为80左右；
2.可适当增加细节以使行文连贯。
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9 . Plastic is everywhere in our modern world. Its toughness makes it an extremely useful material from household items to vehicle parts, but that same toughness makes it hard to break down for recycling or disposal (处理). However, Japanese scientists at the University of Tokyo have developed a new plastic material that can be broken down more easily and can self-heal and remember past shapes.
Based on a kind of plastic called an epoxy resin vitrimer, which is brittle (脆性的), the new plastic boasts a huge range of advantages. Once scratched with a knife, it can completely patch itself up after being heated to 150 ℃ for just 60 seconds. When shaped into the shape of a crane, then flattened, it can fold itself back into the crane shape by being heated up. It does all of this much faster than others of its type.
The new plastic can also break down easier. Even if it’s discarded (丢弃) into the environment, it still poses less of a, problem than other kinds of plastic, which the team demonstrated by placing it in seawater for 30 days. It biodegraded by 25% and released molecules (分子) that are essential food for marine life.
The new plastic is more resistant to breaking. It can also repair itself, and can recover its original memorized shape. It even biodegrades safely in a marine environment, according to Shota Ando, a researcher of the study.
The material can be used in a variety of applications, “Infrastructure materials for roads and bridges are often composed of epoxy resins mixed with compounds such as concrete and carbon,” said Ando. “By using the new plastic, these would be easier to maintain as they would be stronger and healable using heat. Unlike conventional epoxy resins, this new material is hard but stretchable, so it could also be expected to strongly bond materials of different hardness and stretch.”
1. What is the author’s purpose in writing paragraph 1?| A．To introduce the topic of the text. | B．To show the disadvantages of plastic. |
| C．To highlight the importance of plastic. | D．To indicate his views on previous plastic. |
| A．Change itself. | B．Shape itself. | C．Repair itself. | D．Burn itself. |
| A．It is safe for animals in the ocean. | B．It can provide nutrition for animals. |
| C．It can change its shape when frozen. | D．It is more brittle than previous plastic. |
| A．Research Of New Molecules | B．An Interesting Scientific Study |
| C．The Widespread Application Of Plastic | D．A New Environmentally Friendly Plastic |
10 . Landscape architect Kotchakorn Voraakhom has designed a new green roof on the Rangsit Campus of Thammasat University, about 25 miles north of central Bangkok, Thailand. Her imaginative work challenges the common thinking that urbanization has a negative impact on the planet, whether flooding, excess (过度的) energy use, disrupted (扰乱) biodiversity or the heat island effect.
The 236, 806-square-foot structure, which opened in December 2019, includes a flood water management system and Asia’s largest rooftop organic farm. It combines modern landscape architecture with traditional agricultural knowledge, creating a green and friendly environment.
The green roof, containing an H-shaped landscape, looks like a futuristic hill with a brick building beneath it. The hill features a complex pattern of zigzagging terraces (之字形梯田) of planted beds, leading all the way down to the bottom. When rainwater hits the roof, it flows down the zigzags while being absorbed by the soil in the beds, The excess water is directed into four storage ponds — with a capacity of up to 3 million gallons. The process slows down the flow speed of rainwater runoff compared to a normal concrete rooftop. This keeps the area from flooding during heavy rains.
The roof’s terraces are filled with organically grown crops, including a drought tolerant variety of rice, many local vegetables and herbs. The farm can supply the canteens on campus with a large amount of rice, herbs and vegetables a year. The food waste is composted (把……制成堆肥) to fertilize the farm, and water from the storage ponds is used to water plants, creating an entirely localized and circular system.
The farm serves as an outdoor classroom and a source of local jobs, too. Farmers offer workshops on sustainable agriculture and nutrition as part of the university’s sustainability curriculum. “Students and community members are invited to participate in seasonal seeding, harvesting, and so on,” says Voraakhom. “The urban farm is training a new generation of organic farmers with real-world skills. It also promotes a sense of community.”
1. What can we say about Voraakhom’s work?| A．It’s short-lived. | B．It’s creative. |
| C．It’s demanding. | D．It’s time-consuming. |
| A．To store more water. |
| B．To plant diverse vegetables. |
| C．To slow the speed of water flow. |
| D．To make it look more attractive than other buildings. |
| A．It uses food as fertilizer. | B．It benefits the environment. |
| C．It improves students’ lifestyle. | D．It produces vegetables and fruits. |
| A．Students can learn hands-on knowledge on the farm. |
| B．Farmers working on the farm can become professors. |
| C．The farm prevents government from offering people jobs. |
| D．The farm harms the relationship between university and community. |
