1 . Each one of us shares this planet with seven billion other individuals. And we all need transportation. The majority of cars, motorcycles, boats and planes cause pollution. They are also noisy. This is a serious problem in many cities. So inventors are coming up with innovative ideas to try to reduce the pollution and noise.

By Land

In many cities around the world, motorcycles are becoming increasingly popular. Currently, Vietnam has around 33 million motorcycles. China has almost 120 million. The convenience of these motorcycles comes at a cost. Air pollution is a growing problem. In large cities, people often complain it is difficult to breathe. They also complain about the noise.

To solve these problems, a U.S. company designed an environmentally friendly motorcycle. It uses electricity as fuel. You can drive it for 40 miles (64 kilometers) before recharging the battery.

It is also quiet and fast-60 miles (96 kilometers) per hour. This makes it a good choice for getting around a city.

By Water

The Italian city of Venice is a city with only a few roads. There are no cars in the city center. Instead of cars, water taxis and buses carry people along the city’s canals. The engines of these boats are simple and cheap. However, they cause pollution, particularly to the water. This causes damage to the city’s buildings.

English mechanics Dick Strawbridge and Jem Stans designed a solar-powered water taxi. The solar panels charge three electric batteries. These, in turn, provide power to the engine. The water taxi can carry six passengers. It can run for a day. In the future, solar taxis could be an alternative to Venice’s current taxis.

By Air

Designing an environmentally friendly airplane is a real challenge. Planes use an enormous amount of jet fuel. This means they cause significant air pollution, and they are very noisy. Some major airplane manufacturers have started to address the problems. They are using cleaner fuels, for example. However, Swiss engineers have gone one step further. They developed a solar airplane — the Solar Impulse. Solar panels cover its wings. These panels provide power to four electric motors and batteries. The batteries allow the plane to fly at night. This plane holds the world record for the longest solar-powered flight — 985 miles (1541 kilometers) from Arizona to Texas in the United States.

1. What do the three innovative ideas proposed have in common?

A．They aim to solve traffic problems in big cities.

B．They use cleaner energy and cause less pollution.

C．They aim to change traditional way of transporting goods.

D．They are good will of developed countries to help developing countries.

2. Which of the following statements is TRUE?

A．China owns the largest number of motorcycles.

B．There are no cars in the center of Venice city.

C．Solar-powered water taxi can run for a day with one battery at work.

D．The newly designed motorcycle can drive 60 miles after being charged.

3. According to the passage, the distinguished merit of Solar Impulse is ________.

A．lighter wings	B．less noise
C．powerful batteries	D．longest solar panels

2 . What do ants, bees, pigeons, and herrings have in common? All these animals swarm. Swarming occurs when large numbers of individual animals move, work, or cooperate as a group. They appear to know where they are going and what they are doing. Why are they doing this?

Ants are a good example of swarming animals. Swarms of ants can do many difficult tasks. For example, they can find the shortest path to the best food source. It may appear that individual ants build nests and defend their homes, but ants aren’t clever architects or soldiers—at least not as individuals. If you watch an ant try to accomplish something, you will be impressed by how inept it is. Although individual ants don’t appear to be very intelligent, as colonies they are, thanks to swarm intelligence.

Swarm intelligence is the collective behavior of large groups. The key feature of swarm intelligence seems to be that no one is in charge. In the case of ants, there appear to be no leaders. No ant seems to be telling any other ants what to do. There is a queen ant, but her only role is to lay eggs. Yet, a colony of half a million ants functions perfectly without any managers at all. Furthermore, no single ant seems to have any knowledge about the big picture—the main goals or objectives. The swarm relies on lots of interaction between individuals who all follow the rules. One of these rules is to stay close together. When individuals stay close together, they communicate and share a lot of information.

Different animals have different methods of interaction. For example, ants leave a trail of pheromones for other ants to follow. A key component of bee interaction is movement. When bees need to move their hive, scout bees go out in search of a suitable place to live. When they return, they each do a type of dance. The “happier” the bee is about the new location, the faster the dance is. In addition, the dance includes a code with directions to the new location. The excited dancers excite other scout bees. These bees then fly out to check. They come back, get close together, and dance with the other excited bees. The bees will not move until they are all “excited”, or in agreement about the best location. Once a large enough group of bees all agree, they convince the thousands of other bees. Then they all fly together to the new site.

Some scientists are applying the wisdom of animals to solve human problems. Thomas Seeley, a biologist at Cornell University, uses swarm intelligence in his meeting. Seeley doesn’t tell his staff what to do or make all decisions. Instead, he asks his staff to identify all the possibilities, discuss their ideas, and then vote by ballot. Seeley wants his staff, like the bees, to focus on the group’s needs, not on the individual ideas. “It gives a group time to let the best idea emerge and win.” Seeley says that running meetings using swarm intelligence ideas can lead to better decisions. It can also reduce conflict among the staff.

In nature, animals use swarm intelligence for survival. For these animals, working together is a matter of life or death. For humans, there is much to learn from swarm intelligence to make our lives more efficient.

1. According to paragraph 2, “inept” means ________.

A．awkward

B．appealing

C．isolated

D．smart

2. In the case of ants, which of the following statements about swarm intelligence is TRUE?

A．There should be a leader although he may not be in charge.

B．It won’t work if individuals don’t understand the collective goals.

C．Every individual should be very familiar with the rules and with each other.

D．Team member should stick together and communicate what they know.

3. According to paragraph 4, what can be inferred about bees?

A．They communicate within their group through pheromones.

B．Failure in reaching agreements seldom occurs in an intimate team.

C．They head towards the new location when majority of bees agree.

D．The way they dance reflects how satisfied they are with the location.

4. According to Thomas Seeley, swarm intelligence is useful for us in ________.

A．boosting team spirit	B．eliminating conflicts
C．encouraging best ideas	D．solving interpersonal problems

3 . COVID-19 lockdowns had strange effects on air pollution across the globe

Ever since the covid-19 spread, many changes have come with the _____________ unstoppable virus. China has shown the first sign. Rightly after a strict nationwide lockdown was _____________ in late January, most people were restricted from leaving their homes at all for as long as 3 weeks. As a result, the authority ___________ a sharp decline in the direct emissions of air pollution on a scale never observed before. “Changes in emissions would be significant and ___________ studying for it may bring us new solutions to greenhouse effect,” says Jiset Deew, a chemist at the Harvard University, “The pandemic has caused lots of tragedies, but the lesson we can learn is important.”

Researchers found it a strange but ___________ chance to capture how human economic activity—particularly car traffic—dropped rapidly and thus to seek for the answer to the influence of ___________ traffic on air quality. “Running atmospheric chemistry experiments is often a ___________ task based on the lack of experimental conditions, so we have to _________ really complex reaction chambers and computer models,” says Tg, who now works on the project _____________ organic aerosols at MIT. “But in this unprecedented year, we finally get the chance to __________ our ideas and we hope the new findings will further our understanding of the mechanisms that rule atmospheric chemistry but also offer guidance for policy makers who seek to improve air quality and ____________ climate change.”

During the lockdown, passenger traffic plumbed, and traffic-related emissions—particularly CO₂ and NO₂—__________ accordingly. Vehicles powered by gas directly release huge amounts of CO₂ and NO₂. CO₂, a greenhouse gas, plays a major role in global warming. Besides, NO₂ plays a __________ part in atmospheric reactions that produce ozone which helps __________ UV light (紫外线). Now, experts are still working to __________ how the two gases changed during pandemic.

1.

A．seemingly

B．absolutely

C．relatively

D．theoretically

2.

A．criticized

B．issued

C．imposed

D．publicized

3.

A．suffered

B．witnessed

C．reformed

D．respected

4.

A．worth

B．busy

C．demand

D．symbolic

5.

A．rare

B．precious

C．applicable

D．respective

6.

A．halved

B．growing

C．increasing

D．double

7.

A．meaningful

B．honorable

C．tough

D．rough

8.

A．adapt

B．acknowledge

C．accomplish

D．adopt

9.

A．exchanging

B．reminding

C．persisting

D．concerning

10.

A．expect

B．treasure

C．test

D．appreciate

11.

A．relieve

B．settle

C．comfort

D．signal

12.

A．turned

B．kicked

C．fell

D．crushed

13.

A．key

B．indirect

C．wide

D．negative

14.

A．leak

B．collapse

C．lift

D．resist

15.

A．strike

B．take

C．investigate

D．analyze

5 . Directions: Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.

A. alarming B. carbon-intensive C. durability D. glued E. labels F. man-made G. manufacturing H. recycle I. redefine J. samples K. share

How sustainable are your sneakers?

Over the last five years the sneaker industry has grown rapidly and shows no sign of slowing down. The global athletic footwear market is expected to exceed 95 billion (USD) by 2025. According to the World Footwear Yearbook, over 24 billion pairs of shoes are produced annually. Among them sneakers account for the largest     1    . What are the environmental impacts of the rapidly growing sneaker industry?

Sneaker production is very     2    . A typical pair of running shoes produces about 13.6 kilograms of CO₂ emissions which is unusually high for a product that does not use electricity or require power-driving components.

These emissions mainly come from     3    . The majority of sneakers are made from plastic and/or plastic-like materials. All these petroleum-derived plastics produce a(n)     4     number of carbon dioxide.

Then why don’t we move away from the use of plastic? Since sneakers have to endure much more than a regular pair of shoes, the aspect of their     5     is very important when it comes to their overall performance. Unfortunately,     6     materials hold up better than natural ones. Plastic has made shoes better, lighter, faster, more comfortable, and more accessible to everyone worldwide. Another issue with sneakers today is that most of them are made by using a combination of different plastics     7     in a very complicated way, making them very hard to     8    .

The footwear industry is at least 10 years behind the rest of fashion in terms of environmental standards. Seven out of ten brands are having discussions on sustainability, yet only 40% of companies have a sustainability program in place. Big industry players (such as Adidas and Nike) and some smaller     9     are trying to reduce their carbon footprint in different ways.

Considering that close to 25 billion pairs of shoes were produced worldwide in the last year, it is clear that immediate action is very important. It is my hope that we consumers will     10     our relationship with fashion and think about the environmental impact of our shopping habits.

6 . What is the Great Pacific Garbage Patch?

The Great Pacific Garbage Patch (GPGP) is the largest of the five offshore plastic accumulation zones in the world’s oceans. It is located halfway between Hawaii and California.

PLASTIC __________

It is estimated that 1.15 to 2.41 million tonnes of plastic are entering the ocean each year from rivers. More than half of this plastic is less __________than the water, meaning that it will not sink once it encounters the sea.

The strong and floating plastics show resiliency(韧性) in the marine environment, allowing them to be transported over __________distances. They persist at the sea surface as they make their way off shore, transported by converging (汇聚的) currents and finally accumulating in the patch.

Once these plastics enter the gyre（环流）, they are unlikely to leave the area until they __________into smaller microplastics under the effects of sun, waves and marine life. As more and more plastics are discarded into the environment, microplastic __________in the GPGP will only continue to increase.

LOCATION

Due to seasonal and interannual variabilities of winds and currents, the GPGP’s location and shape are constantly changing. Only floating objects that are __________influenced by currents were likely to remain within the patch.

By simulating concentration levels in the North Pacific, the researchers were able to follow the location of the patch and found on average it orbits around 32°N and 145°W. However, the team observed seasonal __________from west to east and substantial variations in latitude（纬度）depending on the year.

IMPACT ON WILDLIFE

Plastic has increasingly become a very common substance in the ocean. Due to its size and color, animals __________the plastic for food, causing malnutrition; it poses entanglement（缠绕）risks and threatens their overall behavior, health, and existence.

Studies have shown that about 700 species have encountered marine debris, and 92% of these __________are with plastic. 17% of the species affected by plastic are on the International Union for Conservation of Nature Red List of Threatened Species.

IMPACT ON HUMANS AND SOCIETY

Once plastic enters the marine food web, there is a possibility that it will contaminate the human food chain as well. Through a process called bioaccumulation, chemicals in plastics will enter the body of the animal __________on the plastic, and as the feeder becomes prey, the chemicals will pass to the __________—making their way up the food web that includes humans. These chemicals that affected the plastic feeders could then be __________within the human as well.

__________, yearly economic costs due to marine plastic are estimated to be between $6-19billion USD. The costs __________its impact on tourism, fisheries and aquaculture, and governmental cleanups. These costs do not include the impact on human health and the marine ecosystem due to __________research available.

1.

A．ACCUMULATION

B．DRIFT

C．FLOATING

D．PROMOTION

2.

A．light

B．thick

C．tiny

D．dense

3.

A．adjusted

B．overdone

C．deposited

D．extended

4.

A．upgrade

B．degrade

C．assemble

D．disassemble

5.

A．transportation

B．estimation

C．concentration

D．location

6.

A．predominantly

B．rarely

C．previously

D．slightly

7.

A．similarity

B．shift

C．boost

D．figure

8.

A．exchange

B．substitute

C．leave

D．confuse

9.

A．implications

B．interactions

C．interferences

D．influences

10.

A．resting

B．feeding

C．risking

D．waiting

11.

A．mariner

B．prey

C．tracker

D．predator

12.

A．present

B．absent

C．current

D．reliable

13.

A．Likewise

B．However

C．Moreover

D．Therefore

14.

A．result in

B．remove from

C．stem from

D．bring about

15.

A．insufficient

B．adequate

C．insignificant

D．substantial

10 . Female penguins get stranded

Every year, thousands of Magellanic penguins (麦哲伦企鹅) get stranded along the coast of South America, but, _________ about 75% of those that get stuck are female. Now scientists say they have worked out what is behind the gender _________: the females migrate further north than males.

Magellanic penguins finish breeding in Patagonia in February, and, during the _________ winter months, head north, reaching as far as Brazil, in search of anchovies (风尾鱼). But every year thousands become stranded, with many _________ to safety on board military aircraft by human.

Writing in the journal Current Biology, researchers in Japan and Argentina report how they _________ tracking device to eight male and six female penguins in 2017 and tracked where the birds went after they left the breeding grounds of Cabo dos Bahfa in Argentina and began the migration north in April.

Previously it was unknown whether male and female’s took different paths or not. “Although some _________ are made, the exact reason for the _________ stranding has been unknown due to the lack of information on their behavior outside the breeding season.” said Takashi Yamamoto, a co-author of the report from the Institute of Statistical Mathematics in Japan.

The results from the study offer a clearer picture. _________ the authors note that only a small number of penguins were tracked, all the female’s generally traveled further north. The male, meanwhile, predominantly stuck to waters of the Argentinian coast. The study also found male _________ dived deeper than female’s: about 59 metres compared with about 35 metres.

The authors offer a number of reasons why males and females may head to different areas— including to avoid __________ for food—and why they dive to different __________ —the females’ smaller bodies may restrict the depths they can reach. They also suggest the different sexes may seek waters of different temperatures, with the __________ females preferring warmer, shallower surroundings.

While researchers are still trying to understand why penguins end up stranded, Yamamoto and colleague’s suggest those that end up further north may have used more energy swimming or catching __________ prey, leaving them exhausted. Climate change, pollution in the area or injury from fishing equipment could also play a role. Reports of standings have noted that many penguins are unwell or exhausted, with some even washing up dead.

“__________, plastic remains have been reported in the stomach of beach-washed Magellanic penguins,” said Yamamoto, adding that a stewed sex ratio could potentially lead to a population decline.

While the findings may not help prevent strandings, Yamamoto said it could help with __________ of the species. “If we do not consider any action, such as marine zoning, I expect that the number of stranding individuals will increase.”

1.

A．desperately

B．puzzlingly

C．obviously

D．undoubtedly

2.

A．combination

B．frustration

C．conflict

D．imbalance

3.

A．following

B．previous

C．starting

D．finished

4.

A．dismissed

B．withdrawn

C．airlifted

D．extended

5.

A．attached

B．equipped

C．lifted

D．injected

6.

A．evaluations

B．assumptions

C．descriptions

D．conclusions

7.

A．deep-rooted

B．ice-covered

C．storm-stricken

D．female-biased

8.

A．Because

B．While

C．After

D．When

9.

A．legally

B．physically

C．typically

D．simply

10.

A．searching

B．competing

C．asking

D．defending

11.

A．widths

B．levels

C．depths

D．rates

12.

A．lighter

B．heavier

C．rougher

D．smoother

13.

A．fixed

B．scared

C．deposited

D．scattered

14.

A．After all

B．In addition

C．However

D．For example

15.

A．perseverance

B．conversation

C．conservation

D．reservation