Read the following passage and choose the best answer (A, B, C, D):
Business dealings are becoming more and more commonplace in Vietnam, as the  country’s economy is expanding at an unprecedented rate. In order to gain the respect and favour of any prospective business partners in the country, it is important to familiarise yourself with practices and etiquette that are integral to successful commerce. Doing so will communicate not only your familiarity with their way of life, but also your suitability as a partner and will underline your business acumen.  Regarding business meeting, the first meeting should not discuss business and should be seen only as an opportunity to get to know your counterpart and cultivate a good working relationship with them. While placing hands together and bowing your head is the traditional form of greeting in Vietnam, it has been all but eradicated by the westernisation of society. As a result, you should always shake the hand of a person you are meeting for the first time - especially if they are of the same sex. When meeting a female, you should wait for her to extend her hand first; if she does not, simply nod your head. Follow your new colleague’s lead in all matters. If they shake with both hands (left hand placed upon top of right), do the same.  The next important point is that the exchange of business cards is an important ritual in Vietnamese culture. Because of this, always make sure you bring a business card to exchange at any meeting, no matter how small or trivial it may seem. Ideally, this will be printed in both English and Vietnamese and you should always offer it using both hands. When receiving a card from someone else, accept it with both hands and study it thoroughly before putting it away to show respect. The translation of all documents into Vietnamese will demonstrate your regard for your prospective partners and your preparation in the business world.  
3. What can best replace the word trivial in the passage?

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The town of Chichen-Itza was established during the Classic period close to two natural cavities (cenotes or chenes), which gave the town its name “At the edge of the well of the Itzaes”. The cenotes facilitated tapping the underground waters of the area. The dates for this settlement vary according to subsequent local accounts: one manuscript gives 415-35 A.D., while others mention 455 A.D. The town that grew up around the sector known as Chichen Viejo already boasted important monuments of great interest: the Nunnery, the Church, Akab Dzib, Chichan Chob, the Temple of the Panels and the Temple of the Deer. They were constructed between the 6th and the 10th centuries in the characteristic Maya style then popular both in the northern and southern areas of the Puuc hills. The second settlement of Chichen-Itza, and the most important for historians, corresponded to the migration of Toltec warriors from the Mexican plateau towards the south during the 10th century. According to the most common version, the King of Tula, Ce Acatl Topiltzin Quetzalcoatl, or Kukulkan as the Maya translated the name, reportedly took the city between 967 A.D. and 987 A.D. Following the conquest of Yucatán a new style blending the Maya and Toltec traditions developed, symbolizing the phenomenon of acculturation. Chichen-Itza is a clear illustration of this fusion. Specific examples are, in the group of buildings to the south, the Caracol, a circular stellar observatory whose spiral staircase accounts for its name, and, to the north, El Castillo. Surrounding El Castillo are terraces where the major monumental complexes were built: on the north-west are the Great Ball Court, Tzompantli or the Skull Wall, the temple known as the Jaguar Temple, and the House of Eagles; on the north-east are the Temple of the Warriors, the Group of the Thousand Columns, the Market and the Great Ball Court; on the south-west is the Tomb of the High Priest. After the 13th century no major monuments seem to have been constructed at Chichen-Itza and the city rapidly declined after around 1440 A.D. From its abandonment during the 15th century, Chichen-Itza underwent a process of gradual deterioration until the first excavations at the site began more than a century ago. Nevertheless, the excellent materials and building techniques used by the Maya in the construction of the buildings secured that the architectonic, sculptural and pictorial essence of Chichen-Itza would be conserved through the centuries  
6. The following statements are true, EXCEPT_______

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We’re all born with a passion for learning that for many of us sadly fades over time. A mindset of continuous learning best positions us for an ever-evolving future. Dr. Carol Dweck, a psychologist and Stanford professor, distinguishes between a fixed mindset and a growth mindset. In a fixed mindset, people believe that their basic qualities, like intelligence or talent, are fixed traits. They believe that talent alone, without effort, creates success. They believe that they are “smart” or “dumb” and that there is no way to change. No matter how hard they work at something, a ceiling prevents them from getting better. In a growth mindset, people believe that their basic abilities can be developed through dedication and hard work. Brains and talent are a starting point. This view creates a love of learning and a resilience that is essential for great accomplishments. The sky is the limit. It’s not about proving yourself, it’s about improving yourself. “Future Shock” author Alvin Toffler once said, “The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn and relearn.” Learning and relearning can be fun. Unlearning is hard. It’s hard discarding old thinking, protocols, treatment plans, business practices and communication styles. But that hard work is necessary to progress and grow as people and professionals. Unlearning is particularly difficult for adults; kids are good at it. Our thinking becomes more rigid as we age. How difficult was it for medical professionals of the past to unlearn bloodletting, lobotomies, arsenic and mercury treatments, urine for teeth whitening, shock therapy, and heroin for children’s coughs? All were considered contemporary medicine in our great-grandparents’ day. The importance of learning, unlearning and relearning has never been more important than in today’s rapidly changing workplace
5. According to paragraph 3, which statement is correct about learning, unlearning and relearning?

Read the following passage and choose the best answer (A, B, C, D):
In addition to improved physical health, sport plays a primarily positive role in youth  development, including improved academic achievement, higher self-esteem, fewer behavioral problems, and better psychosocial development. Many studies focus on the effects of sport on the five “C’s” - competence, confidence, connections, character, and caring. The many facets of playing sport - the discipline of training, learning teamwork, following the leadership of coaches and captains, learning to lose - provide lifelong skills for athletes.  The literature on youth sport stresses the positive effects of participation in learning the important life skills of goal setting and time management combined with enjoyment; the development of a strong sense of morality; and the development of an appreciation of diversity. Studies have shown that children and youth participating in sport, when compared to peers who do not play sport, exhibit higher grades, expectations, and attainment; greater personal confidence and self-esteem; greater connections with school – that is, greater attachment and support from adults; stronger peer relationships, more academically oriented friends, greater family attachment and more frequent interactions with parents; more restraint in avoiding risky behavior; and greater involvement in volunteer work.  Sport provides opportunities for children and youth to engage in valuable and positive relationships with adults. Thus, it is a missed opportunity for children who are "gated" - or not included in sport - during early stages of childhood because they are less well behaved than other children. These children are being prevented from participating in the very thing that could help them learn to control and regulate their behavior. Sport provides an opportunity for children to safely navigate and negotiate between right and wrong as they learn to interact with peers and adults. Research by Taliaferro et al. suggests that playing sport can even protect against suicide risk in youth. Compared to non-athletes, male athletes exhibit lower levels of hopelessness and suicidal ideation. Young males involved in multiple sports seem to garner even more protection in this regard. Similar results were found for girls. Research on the role of exercise in adults confirms that it improves mood and alleviates many forms of depression. Bartko and Eccles les found that youth who are highly involved in sport are more “psychologically resilient,” that is, better able to recover from problems. Eccles et al. found that sport participation protects young athletes against social isolation
7. Whose study suggests that sport players are more able to feel better after unpleasant events than others?

Read the following passage and choose the best answer (A, B, C, D):
It’s important to be able to articulate your dream job. Not just for personal reasons,  but also for when you’re asked about it in interviews. But, how can you even begin to describe your ideal job, especially to someone who’s clearly going to be judging your response? Just picking a place to start is a head-scratcher.  First, let’s talk about what you’re good at doing, or your strengths. It’s likely you’ve already had the chance to talk about this topic a bit during the interview, so it makes for a nice transition. Highlight the skills that you enjoy using most, not just the ones you’re a superstar at. This is about your dream job, so don’t shy away from mentioning any that you want to grow as well.  Think big picture for this. What drew you to your industry? What’s something you did as a kid that’s actually found its way into your work? What is it about your career that keeps you engaged? Weave that in. Giving a sense of what your career values are will give the interviewer an idea about what motivates you; it’s a good way to bring the focus back to the company you’re interviewing for. It also adds some extra complexity to your answer. You’re not just saying, “I want an interesting job that I’m good at.” I mean, that’s nice, but this is your dream job we’re talking about! Don’t pigeonhole yourself with anything that official. Instead, give the hiring manager a more nuanced response by covering your skills, interests, and values. He or she will get the chance to learn more about you—and you have more flexibility to line up your career goals and the position you’re applying for. That’s a win-win. 
1. Which best serves as the title for the passage?

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When I tell people about the idea of moving out, many people’s reaction is like, “what do your parents say?” because they assume the parents would not like their children to leave them. Well I don’t know if my parents like it but I can tell you my parents support and respect my decision. They think it is good for me to try and live on my own and then I would know it is the best to stay with my family. The most important reason for independent living is to save the travelling time to work. It used to take me one hour fifteen minutes to travel to work from my previous living place. From my new apartment, it just takes me thirty minutes so I saved forty-five minutes’ traveling time. I don’t have to get up so early and I save two-third of my traveling cost. It does not only save my time to travel for work but also from most of the places in Hong Kong. In addition, I gain my personal space and freedom by independent living. I make my own decision all the time, I do not have to say whether I would go home for dinner, I can invite my friends to come up and stay late. Of course, there are some trade-offs in living on your own. If you want to rent an apartment, there are lots of preparatory work to do. You have to keep visiting the apartments to search for your ideal one. You have to negotiate with the landlord about the price, furniture inclusion, who is responsible for the maintenance of the furniture and equipment. My experience was that after we moved into the apartment, it was not until the kitchen cupboard was soaked with water that we found out there was water leakage in the kitchen sink. Money is the main issue in living on your own. You have to be responsible for all the expenses, for example, the rent, electricity, gas, water, telephone, internet bills, etc.  Therefore, you’ve got to be well prepared and save up for your bills. Although I find my transportation time much shorter, the saved time is spent on other things, such as cooking and some other household chores. I think preparing and cooking the food do occupy a significant portion of my time, therefore I always try to make simple meals. On the other hand, I have to regularly tidy up my apartment and wash my clothes, so it doesn’t really save much of my time after all. Now everything is settled down, I’m getting used to my new life and I am enjoying it. I feel that moving out makes it easier for me to strike a balance between my work, my social life, my study and my family. It may be troublesome but it may worth  
8. What conclusion does the writer make about moving out?

Choose the best answer:
Both hardware _________ software are important to a computer.

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Sociologists have been carrying out research into the social pressures of being a teenager. Many adolescents are unhappy at school because they find it difficult to (1) ______ friends. This stress can bring on illness or result in poor grades. They may also worry about their appearance and often feel (2) ______ enormous pressure to dress, talk and behave the same as (3) ______. This phenomenon is called peer pressure, and it is very common in today’s society. Advertising contributes a lot to the social pressures teenagers feel. Advertisers know how important it is to feel that you belong to a group when you are in your teens, so they try to persuade teenagers that certain products will make them (4) ______ with their classmates. Sadly, many teenagers act irresponsibly and even do dangerous things just to make others accept them. Peer pressure is often the reason for teenage smoking, drug (5) ______ or dangerous driving. Teenagers need to learn to say no to social pressure and to find friends who they can talk things over with when they have a problem

Read and complete the sentence.  " Many of these songs deal ________ important social issue, such as racial integration and the war in Vietnam."

In the mid - nineteenth century, the United States had tremendous natural resources that could be exploited in order to develop heavy industry. Most of the raw materials that are valuable in the manufacture of machinery, transportation facilities, and consumer goods lay ready to be worked into wealth. Iron, coal, and oil - the basic ingredients of industrial growth - were plentiful and needed only the application of technical expertise, organizational skill, and labor.

One crucial development in this movement toward industrialization was the growth of the railroads. The railway network expanded rapidly until the railroad map of the United States looked like a spider's web, with the steel filaments connecting all important sources of raw materials, their places of manufacture, and their centers of distribution. The railroads contributed to the industrial growth not only by connecting these major centers, but also by themselves consuming enormous amounts of fuel, iron, and coal.

Many factors influenced emerging modes of production. For example, machine tools, the tools used to make goods, were steadily improved in the latter part of the nineteenth century - always with an eye to speedier production and lower unit costs. The products of the factories were rapidly absorbed by the growing cities that sheltered the workers and the distributors. The increased urban population was nourished by the increased farm production that, in turn, was made more productive by the use of the new farm machinery. American agricultural production kept up with the urban demand and still had surpluses for sale to the industrial centers of Europe.

The labor that ran the factories and built the railways was recruited in part from American farm areas where people were being displaced by farm machinery, in part from Asia, and in part from Europe. Europe now began to send tides of immigrants from eastern and southern Europe - most of whom were originally poor farmers but who settled in American industrial cities. The money to finance this tremendous expansion of the American economy still came from European financiers for the most part, but the American were approaching the day when their expansion could be financed in their own " money market".

The word" themselves" in the paragraph 2 refers to ________

Read the following passage and choose the best answer (A, B, C, D):
Coal, oil and gas get more than $370bn a year in support, compared with $100bn for renewables, the International Institute for Sustainable Development (IISD) report found. Just 10-30% of the fossil fuel subsidies would pay for a global transition to clean energy, the IISD said. Ending fossil fuel subsidies has long been seen as vital to tackling the climate emergency, with the G20 nations pledging in 2009 to phase them out, but progress has been limited. The new analysis shows how redirecting some of the fossil fuel subsidies could decisively tip the balance in favour of green energy, making it the cheapest electricity available and instigating a rapid global rollout. The transition from polluting fossil fuels to clean energy is already under way. Annual investment in renewables has been greater than that in fossil fuel electricity generation since 2008 and new renewable capacity has exceeded fossil fuel power each year since 2014. But progress is slow compared with the urgency required, said Bridle. “There is no question that renewables can power the energy system,” he said. “The question now is can we transit quickly enough away from fuels like coal, and subsidy reform is a very obvious step towards that.  Reform of fossil fuel subsidies could have a significant impact on global heating. An earlier IISD study of 20 countries with large fossil fuel subsidies found that a 30% swap to renewables would lead to emissions reductions of between 11% and 18%. Most experts define fossil fuel subsidies as financial or tax support for those buying fuel or the companies producing it. The IMF also includes the cost of the damage fossil fuel burning causes to climate and health, leading to an estimate of $5.2tn of fossil fuel subsidies in 2017, or $10m a minute. Ending the subsidies would cut global emissions by about a quarter, the IMF estimates, and halve the number of early deaths from fossil fuel air pollution. Bridle said funding fossil fuel subsidies was “madness”, but said ending them could cause short-term price rises and political difficulties, as the benefits of lower costs in the future and reduced air pollution are less obvious. “There are political problems but it is worth persevering because the prize is so big,” he said. “You have to bring people along with you.” Gençsü said governments must ensure that the most vulnerable people were not adversely affected by changes. 
3. According to paragraph 3, what is the only problem left in the progress of green transition?

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Human’s avarice for ivory has resulted in thousands of unfathomable elephant atrocities and senseless suffering that has pushed the species to the brink of extinction. In 2015, the U.S. and China announced they will work together to enact a near complete ban on the import and export of ivory. As an industry that has largely been driven by China and, if substantiated, these claims could be a ray of light for one of the most endangered animals in the kingdom. However, as the famous saying goes, “for every action, there is an equal and opposite reaction.” With the worldwide attention on elephant ivory, hippo teeth, which can grow up to three-feet-long, have become the next target. Since the United Nations Convention on International Trade in Endangered Species officially imposed a ban on ivory trading in 1990, about 30,000 pounds per year of hippo teeth have been exported from Africa. On a recent trip to Kenya, I had the unfortunate displeasure of meeting these facts face-to-face. On the banks of the Mara River, the infamous transient point of the great wildebeest migration, I met a Conservancy Ranger, a local Kenyan, named Ivan. He led me along a narrow path above the riverbed to view pods of hippos. They clumped together in the river, every few minutes lifting their heads above the waterline to welcome my arrival. Despite their label as one of the most dangerous animals in Africa, they were playful to watch. Their tiny ears and eyes would appear from the murky river and then, with a splash, they would disappear. The river is everything to the hippo, Ivan explained, it is their lifeline. The only real time they leave the river is during their nightly ritual of traveling to nearby plains to consume grasses. Contrary to their aggressiveness, they are vegetarians. As we neared the end of our trek, we reached the Mara Bridge, spanning the divide between Kenya and Tanzania. An undeniable stench filled the air. Our gaze fell to the water beneath the structure, and as if to mark the metaphorical significance of the passage, lay a poached hippo. It had been killed the previous night, probably as it grazed unsuspectingly under the cover of darkness. They had found spear punctures in its body, and its teeth were missing. It had somehow, in unthinkable pain, made its way back to the river, its home, to die.
4. What does the word “which” in the second paragraph refer to?

Read the following passage and choose the best answer (A, B, C, D):
If you want to improve group productivity, it is advisable that you organize competitions that build morale and teamwork skills for all participants, (1) _______ than just a few star performers. For example, if you (2) _______ a competition between sales teams, you can reward all members of the (3) _______ group with a lunch out at a nice restaurant or a group trip. This way, even the lower-performing members of the team have a reason to try as hard as they can to help the team win. In an individual sales contest, a few top salespeople compete with one another for the top prize, (4) _______ everyone else gives up because they know they can’t win. The productivity of (5) _______ top people increases, but the productivity of the rest of the group does not. In a team competition, even the lowestperforming member of the group can help earn the prize, so all team members put in their best effort and the productivity of the entire group goes up

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.

Many people see fad diets as harmless ways of losing weight, and they are grateful to have them. Although permanent weight loss is the (31)_________, few are able to achieve it. Experts estimate that 95 percent of dieters return to their starting weight, or even gain weight. While the reckless use of fad diets can bring some (32)_________results, long-term results are very rare. (33) _________, people who are fed up with the difficulties of changing their eating habits often turn to fad diets. (34)_________being moderate, fad diets involve extreme dietary changes. They advise eating only one type of food, or they prohibit other types of foods entirely. This results in a situation (35)_________a person's body doesn't get all the vitamins and other things that it needs to stay healthy

(34)..............................

Read the following passage and choose the best answer (A, B, C, D):
An important point to remember if you like spending time out in the open air is that the human head doesn’t work very well outdoors if it becomes too hot, cold or wet. That’s why a hat is a good investment, whenever you are planning to go out and about. Surprisingly, a single waterproof hat with a brim will do the (34)______ adequately in most conditions. In cold climates, the problem is that the head is (35)______ heat all the time. As much as fifty to sixty per cent of your body’s heat is lost through the head and neck, (36)______ on which scientist you believe. Clearly this heat loss needs to be prevented, but it’s important to remember that hats don’t actually keep you warm, they simply stop heat escaping. Just as important is the need to protect your neck from the effects of bright sunlight, and the brim of your hat will do this. If you prefer a baseball cap, (37)______ buying one that has a drop down ‘tail’ at the back to stop your neck getting sunburnt. And in wet weather (38)______, hats are often more practical than pooling up the hood of your waterproof coat because when you turn your head, the hat goes with you, whereas the hood usually does not.

Read the following passage and choose the best answer (A, B, C, D):
Climate change is caused by the (1) ______ high levels of dangerous chemicals in the  atmosphere, particularly carbon dioxide. It is estimated that average global temperatures will rise (2) _______ between two and six degrees by the end of this century. We all know the effects could be catastrophic, but are we (3) _______ of the possible solutions? Crazy as it sounds, a group of academics from British universities is making a plan to build a 12-mile pipe, held up by a huge balloon, that would pump (4) ____ quantities of toxic chemicals, such as sulphur dioxide, into the atmosphere. Surprisingly, there is good science behind the idea. The chemicals would form a (5) ____ layer around the Earth that would reflect sunlight and so cool the Earth, much like the effects of a volcanic eruption

Read the following passage and choose the best answer (A, B, C, D):
A new study shows that urbanization shifts this seasonal cue in nuanced ways, with cities in cold climates triggering earlier spring plant growth and cities in warm climates delaying it. The study also found that the urban heat island effect, the phenomenon in which cities are warmer than their surroundings, is not the only culprit behind the shift, suggesting that other aspects of urbanization, such as pollution, changes in humidity and fertilizer runoff, may also influence plants’ seasonal patterns.  Researchers analyzed millions of observations of 136 plant species across the U.S. and Europe to study how regional temperature and the local density of people-a proxy for urbanization—affect when plants sprout leaves and blossoms. Their results revealed a complex story: Separately, warmer temperatures and higher population density each spurred earlier springs. A 3.6-degree Fahrenheit increase in temperature bumped up plants’ production of leaves and flowers by about five and six days, respectively. A fourfold increase in human population density advanced flowering and leaf production dates by about three days. But the team found that when these two factors worked together, local temperature had an outsized influence. In cold regions—areas with an average November-to-May temperature of about 18 degrees-plants produced leaves and flowers about 20 days earlier in locations with about 26,000 people per square mile, compared with equally frigid wildland. When an area’s average November-to-May temperature jumped to 68, however, leaves and flowers appeared four and six days later, respectively, in locations with about 26,000 people per square mile, compared with equally balmy wildland. In New York, for example, plants are likely sprouting leaves about 9.5 days earlier and blossoms eight days earlier than uninhabited regions with the same temperature. Jacksonville, in contrast, is likely pushing leaf production later by about one day and flowers by about half a day, with leaves appearing two days later and flowers a day later in Houston.  Even after accounting for urban heat islands, the team’s models revealed cities significantly affect plants’ springtime growth. “Not only are there other things going on, but they actually matter quite a lot,” said study co-author Brian Stucky, Florida Museum research scientist. Plants may not be the only organisms affected by seasonal shifts, he added. “Seasons are such a big part of our lives. We define our world around seasonal things. Those rhythms are what we think of as the normal way the world works.” 
4. According to paragraph 2, what will rising temperature combining with increased crowdedness cause?

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The field of 3-D printing comes with a new set of legal questions hospitals using the  technology will need to consider, said Bruce Kline, a technology licensing manager who oversees patents for new technology developed at Mayo Clinic. For starters, he said the STL file printers use are a lot like MP3 music files, in that they can be protected under copyright and require licensing to use. Copyright violations can occur if a purchased STL anatomical model file for rare disease is illegally shared with another institution that did not purchase the file from the vendor that created the file.  Under the law, if a device has a functional use it falls under patent law. If it is not functional, it falls under copyright law. Kline said most medical 3-D printing for educational models and complex anatomy evaluation currently falls under copyright. But, he said that will rapidly change in the coming years as customizable 3-D printable medical devices see wider use.  Additive manufacturing (AM) allows the creation of patient-specific devices at the point of care. Kline said an interesting fact is that these devices are FDA 510(k)-exempt if produced by a hospital instead of a medical device vendor. He said this blurs the lines between traditional vendor relationships, since the hospital can now become the manufacturer. However, if a hospital makes a device, it also becomes liable for it. He advised that it might be better for a commercial vendor to make the device for the hospital so the vendor assumes the liability of the device. Custom-made medical devices are also exempt under FDA regulations, Kline said. So, if a physician creates or modifies a device to meet the clinical needs of a specific patient’s anatomy, he said it is acceptable to use under current FDA rules. This may leave the door wide open for use of 3-D printed devices that are customized for each patient using their own 3-D imaging datasets.  It is possible printable device files may become available in the next few years to customize and print on demand. However, Kline said it will be much more difficult to enforce patents on these types of devices. He explained if someone makes one or two devices, there is no economical way for the creator of those device files to go after the user/maker of of unlicensed copies of the device to claim lost profits.
5. The word “liable” in paragraph 3 is closest in meaning to _______

Read and complete the  following passage.

"Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________ if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are caught (3)________and sold as pets. For many animals and birds the problem is that their habitat - the place where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________ wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________, unless we can solve this problem."

1. Nowadays people are more aware that wildlife all over the world is in (1)________.

Each sentence has a mistake. Find it by chosing A B C or D 

 Today the totally number of national Red Cross societies from all over the world has mounted to 186

Read the following passage and choose the best answer (A, B, C, D):
The biggest difference between an eco-lodge and a green hotel is the setting in which you’ll find them. Eco lodges tend to be more remote, located in relatively pristine natural environments such as beaches, jungles and mountains. Green hotels, on the other hand, are more often associated with cities and towns. Eco lodges and green hotels both emphasize elements such as environmental responsibility and minimizing negative impact. The best ones offer renewable energy sources, recycling services, eco-friendly toiletries, energy efficient lighting, locally sourced food, organic linens and towels, non-toxic cleaning supplies, non-disposable dishes, water conservation methods and various other sustainability-focused initiatives. But eco lodges tend to be more dependent on the natural environment than green hotels. They are also generally more active in nature and wildlife conservation, more focused on educating visitors about the flora and fauna of local ecosystems, and more deeply connected with the area’s indigenous culture (whose influence is often incorporated into the lodge’s decor and restaurant menu). The best eco lodges also work to ensure positive relationships with the local people. They train and employ them at fair wages, take part in community development initiatives, offer activities that help visitors conserve and appreciate local customs, and contribute to the local economy. In this way, they reinforce the notion of ecotourism as a more sustainable long-term business model than altering or destroying habitats for quick financial gains  
5. The word "they" in the passage refers to ____