Located in the north-east of Italy, Venice is
Venice
But only time will tell if this project is the right
2 . This past summer I set out on a journey to Canada’s Arctic. When I left I was wrapped in a blanket of uncertainty and
But when I first met the group members, I knew I didn’t have anything to
Approaching the Arctic, I was repeatedly
However, I also learned the pollutants carried by ocean from far away have a negative
During the journey, I talked with some
The Arctic is a land of incredible beauty which
| A．relief | B．anxiety | C．pride | D．argument |
| A．put up | B．prepare for | C．give up | D．worry about |
| A．easy-going | B．well-behaved | C．sensitive | D．flexible |
| A．failure | B．performance | C．adventure | D．conflict |
| A．embarrassed | B．ashamed | C．amused | D．shocked |
| A．watching | B．organizing | C．noticing | D．guessing |
| A．painfully | B．patiently | C．unconsciously | D．doubtfully |
| A．source | B．reaction | C．effect | D．development |
| A．rest | B．ease | C．peace | D．risk |
| A．hunt | B．explore | C．help | D．meet |
| A．demanding | B．learned | C．modest | D．rigid |
| A．classified | B．decorated | C．confused | D．occupied |
| A．promises | B．benefits | C．deserves | D．intends |
| A．take care of | B．make use of | C．run out of | D．became tired of |
| A．deny | B．ensure | C．argue | D．overlook |
More than 11,000 scientists from 153 countries have sounded the alarm on climate change. In a paper
The scientists also gave some instructions to fight against global warming,
The scientists say the climate crisis is
4 . The scientists who re-engineered the plastic-eating enzyme(酶) PETase have now created a new enzyme called “cocktail” , which can digest plastic up to six times faster.
PETase breaks down PET back into its building blocks, creating an opportunity to recycle plastic and reduce plastic pollution. PET is the most common thermoplastic(热塑性塑料) used to make single-use drinks bottles, which takes hundreds of years to break down in the environment, but PETase can shorten this time to days. The initial discovery set up the prospect of a revolution in plastic recycling, creating a potential low-energy solution to tackle plastic waste.
Now, the same trans-Atlantic team have combined PETase and its “partner”, a second enzyme called MHETase, to generate much bigger improvements: simply mixing PETase with MHETase doubled the speed of PET breakdown, and engineering a connection between the two enzymes to create a “super-enzyme”, increased this activity by a further three times.
The team was co-led by the scientists who engineered PETase, Professor John McGeehan and Dr Gregg Beckham. Professor McGeehan said: “Gregg and I were chatting about how PETase attacks the surface of the plastics and MHETase chops things up further, so it seemed natural to see if we could use them together. Our first experiments showed that they did work better together, so we decided to physically link them. It took a great deal of work, but it was worth the effort — we were delighted to see that our new enzyme is up to three times faster than the separate enzymes.”
The original PETase enzyme discovery indicated the first hope that a solution to the global plastic pollution problem might be within grasp, though PETase alone is not yet fast enough to handle the tons of PET bottles. Combining it with a second enzyme, and finding together they work even faster, means another leap forward has been taken towards finding a solution to plastic waste. PETase and the new combined MHETase-PETase both work by digesting PET plastic. This allows for plastics to be made and reused endlessly, reducing our reliance on fossil(化石) resources.
1. What can we learn about “cocktail” from the text?| A．It doubles the breakdown of plastics. |
| B．It takes hundreds of years to break down. |
| C．It contributes to breaking down plastic quickly. |
| D．It deals with the plastic waste three times faster. |
| A．A new study of PET. | B．The breakdown of PET. |
| C．The discovery of PETase. | D．The functions of PETase. |
| A．Co-leading the trans-Atlantic team. | B．Combining PETase and MHETase. |
| C．Attacking the surface of the plastics. | D．Talking about conducting experiments. |
| A．PET pollution is no longer a difficult problem to deal with. |
| B．New enzyme is speeding up our reliance on fossil resources. |
| C．MHETase-PETase makes the world free from plastic pollution. |
| D．Plastic-eating enzyme “cocktail” promises new hope for plastic waste. |
5 . How to Reduce Gift Wrap Waste
Wrapping paper may have “paper” in its name, but that doesn’t automatically mean it can be recycled.
Reuse what you have.
Use different materials.
Ask for better paper. Shops store what customers want, and recyclability should be a top priority, so let that be known when you’re out shopping. As explained by Simon Ellin, CEO of the Recycling Association, a trade body that represents about 90 waste management companies and paper merchants in the United Kingdom, “It’s a campaign we’ve been on all year — do you really need to design a non-paper wrapping paper? Make paper with recycling in mind!”
| A．Try zero waste. |
| B．Shop with that in mind, too. |
| C．You don’t have to choose shining paper to decorate a present. |
| D．In fact, many types of wrapping paper cannot due to their materials. |
| E．When wrapping paper is extremely thin, it has few good quality fibers for recycling. |
| F．Wrapping paper can be used many times if care is taken to unwrap it without tearing. |
| G．Having a mix of recyclable and non-recyclable papers is a real problem for companies. |
6 . If you’re looking for something fun to do, pack a picnic dinner and take your family or friends to a beautiful place to eat. However, there’s a wrong trend to view picnics as an excuse to transport food in single-use plastic containers. Sure, it means the cleanup is easy at the moment, but it just puts it off to a later point, when it takes the form of volunteer cleanups and landfill management.
●Use food containers smartly
Using reusable containers is the easiest way to reduce waste.
●Choose real cutlery (餐具)
Using washable dishes and cutlery for a picnic does not require much more work than single-use ones.
You’d have to carry the waste out anyway in a trash bag, so why not pack your dirty plates and cutlery into a bag and put them in the dishwasher at home?
●Think about the drinks
Forget the single-use, single-serve drink bottles.
●Put cloth bags to good use
Cloth bags are amazing. I use them for so much more than just buying food at the store. They’re perfect for packing sandwiches, dried or whole fruit, and other snack foods. You can use them to pack glasses or plates to prevent breaking. They can also work as a napkin, tea towel, or trash bag if needed.
| A．Be sure to add a few to your picnic basket. |
| B．There are some healthy dishes you can make or buy. |
| C．To avoid this, a plastic-free picnic can be a brilliant idea. |
| D．If you’re worried about breaking, take some light camping plates. |
| E．Instead, just bring along a cloth tablecloth to spread on the ground. |
| F．These create a huge amount of waste, which can be easily avoided. |
| G．In addition, keep in mind that you don’t have to pre-pack everything. |
7 . From Dec 7 to 19, delegates from around the world met at the 15th meeting of the Conference of the Parties to the United Nations Convention on Biological Diversity (also known as COP15), in Montreal, Canada. After two weeks of intense debate at COP15, delegates agreed on Dec 19 to adopt a landmark plan to halt and reverse biodiversity loss by 2030. “Finally, we reached our destiny. We adopted the Kunming-Montreal Global Biodiversity Framework,” Huang Runqiu, COP15 president and China’s minister of ecology and environment, announced on Dec 19.
The new framework is a commitment by 196 parties to the Convention on Biological Diversity to conserve at least 30 percent of the Earth’s land and ocean area by the next decade. It also will increase the expected annual financial assistance from developed countries through 2030 to help developing nations with biodiversity protection.
The aim of COP15 is to ensure biodiversity loss is changed by 2030, and that humans are able to live in harmony with nature by 2050.To realize these objectives can be very challenging. At COP10 in Nagoya, Japan in 2010, the parties agreed on the 20 Aichi Biodiversity Targets (爱知生物多样性目标). But, as of now, none of the 20 objectives has been fully realized.
It is important to turn consensus into effective actions. Yet, as recent talks have shown, an aspect of effective international action on stopping climate change is the cooperation of developed countries. Developed countries, however, have fallen short of their responsibility as they have failed to fulfill the obligations according to the COP convention to provide funding and technology to poorer nations who lack the means to combat climate change.
To solve this problem, the framework creates a new biodiversity fund within the UN’s existing Global Environment Facility. This came about as a compromise between developing nations, which wanted a new fund, and developed countries, which did not. In addition, a global youth initiative (倡议) was also released, hoping young people to be leaders and advocates for biodiversity conservation.
1. What is the aim of COP15?| A．To save at least 30 percent of the Earth’s land and ocean area by next decade. |
| B．To stop biodiversity loss and promote harmony between man and nature. |
| C．To strengthen the cooperation between developed and developing countries |
| D．To provide funding and technology to poorer nations to fight climate change. |
| A．To show the parties didn’t fulfill the obligation |
| B．To show the objectives were too high to realize |
| C．To show it is difficult to realize the objectives of COP 15 |
| D．To show Japan didn’t hold the meeting successfully. |
| A．Statistic. | B．Emotion. | C．Intervention. | D．Agreement. |
| A．International cooperation is important. |
| B．A new framework is made in the COP15. |
| C．Joint efforts are needed to fight climate change. |
| D．Historic COP 15 deals are released on biodiversity. |
Leonora, a 51-year-old from the Philippines,
In Asia, there is plenty of waste material for Leonora to apply. Most of the world’s ocean waste
“The dresses are really
Most of her dresses are used in the beauty
To observe Tibetan antelopes, we made a trip to Tibet. There we made out
To protect them, the Changtang National Nature Reserve was set up,
In the 1980s and 1990s, the population dropped badly because of being shot to make profits and the loss of
10 . Roads and railways have made it easy for people to travel around the UK, but have had the precisely opposite effect for insects. Alongside housing developments, transport infrastructure (基础设施) has separated insect habitats, leaving many pollinators (传粉昆虫) stuck on decreasing islands of biodiversity.
A new conservation project aims to address that by creating a network of wildflower superhighways across the UK. The B-Lines network aims to join the dots between meadow habitats, enabling pollinators and other wildlife to move freely between them. Ten years in the making, the B-Lines initiative was launched by the insect charity Buglife on Tuesday and has already generated interest from unexpected quarters. “After the launch, some house builders rang up asking how they could include the network into house building, so it could have a really positive effect,” said Buglife’s Paul Hetherington.
Buglife has spent the last decade mapping potential routes for the insect superhighway. Hetherington said the proposed highway could give the UK’s weak insects a boost and a route out of habitats that become too hot due to the climate crisis and it can make a huge difference in easing declines. “The things that have really hammered pollinators are habitat loss, loss of connectivity of habitat, climate change and pesticides—this deals with everything except pesticides,” said Hetherington.
The B-lines network is not just a concept. Pilot sections have already been completed, including the South Wales B-Lines near Cardiff. “Since that was done, there have been recordings of one of our rarest bees in Cardiff town centre, which shows this connectivity can work,” said Hetherington. And in Norwich, Buglife has been working with Network Rail to plant wildflowers along the track. Anyone living along the proposed route can get involved in the project. All they need to do is let their lawns grow, or even just create a small herb garden, which Hetherington likened to creating a “motorway service station for bees”.
1. What can we learn about the B-Lines network from paragraph 2?| A．It will separate insect habitats. | B．It can help insects to pollinate. |
| C．It is still being planned now. | D．It hasn’t caused any attention. |
| A．The last decade. | B．The superhighway. | C．The climate crisis. | D．The decline. |
| A．By recording the tracks of bees. | B．By cooperating with Network Rail. |
| C．By planting herbs in their own gardens. | D．By creating a motorway service station. |
| A．Roads and railways have caused bad effect on insects. |
| B．Transport infrastructure prevents housing developments. |
| C．Pollinators are stuck on decreasing islands of biodiversity. |
| D．Conservationists are creating “superhighways” for insects. |
