The “Swim with Dolphins” tourist industry is becoming more popular every year with the increase of people’s income. After all, it can cost a large amount of money to have this kind of holiday experience. So tour operators try to place eager swimmers as near as possible to the dolphins by trying to predict where the dolphins will be.
Research has shown that while dolphins can move away if they do not want to interact (交流) with human swimmers, they do not like it at all if the swimmers slip into the water directly on top of them or if humans are in their path of travel. However, if swimmers enter the water to one side of them, the dolphins do not avoid the swimmers to the same extent.
In all cases, the dolphins seem to have become more sensitive to the presence of the swimmers. For dolphins, swimming among or with humans is not necessarily a high priority. This research has shown that only 19% of any group of dolphins will participate in interaction. Young dolphins are the most likely to interact; they do seem curious about being with humans. It is believed that they see humans as “entertainment” and that the interaction is a new and unusual experience for them.
It is frequently asked whether “Swim with Dolphins” tourism should be discontinued. The advice is that dolphins should be given enough periods of time throughout the day when they are not exposed to tourism. Permitted interactions should not be too disturbing to the dolphins since there could be mothers and calves (幼崽) present in dolphin groups. There should also be educational campaigns about the creatures and what is likely to cause danger to them.
It is not easy to explain to someone that they cannot fulfill their lifelong dreams because the dolphins are resting, or a mother dolphin and her calf are in the area. But if we are to enjoy these remarkable animals and not just use them for our entertainment, then we must carefully monitor the “Swim with Dolphins” industry worldwide.
1. What makes “Swim with Dolphins” tourism popular?| A．The local government’s encouragement. |
| B．The improvement of people’s living standards. |
| C．The increasing number of tourists. |
| D．The high profits of the industry. |
| A．They do this out of curiosity. | B．They like humans better. |
| C．They are less sensitive. | D．They prefer new things by nature. |
| A．Make people know the hidden threat to dolphins. |
| B．Strictly limit the expansion of the industry. |
| C．Avoid interaction with young dolphins. |
| D．Expose dolphins to tourists only in the daytime. |
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【推荐1】There are many ecosystems that are truly suffering from degradation. The solution is that they can be restored by re-introducing several animal species. The United Nations funded a study that shows that if you introduce 20 specific large mammals you can successfully restore a lot of the planet.
Some roles that species play in the environment are critical, so the loss of any of these can harm the world. So that means that on the other hand, re-introducing a species can produce positive results. When a few wolves were re-introduced to Yellowstone Park is one of the most cited examples. There is no doubt that the re-introduced wolves did restore the ecosystem.
Dr. Carly, a scientist, along with her team, was able to identify 13 herbivores and 7 predators that if re-introduced, could help restore a lot of what we’ve destroyed in nature. One species can benefit its environment in a dramatic way, helping create more soil insects and worms.
The team compared environments from 500 years ago to conditions of modern environments to know how travel and the industrial revolution have influenced the planet. And at last they figured out that only 16% of the world still has undamaged wild mammal communities and just 6% looks similar to what it looked like pre-1500.
They suggested that a 54% expansion in territory home to undamaged mammal communities can easily be accomplished, especially in South America and northern areas of Africa. In Europe, re-introducing beaver, bison, wolf, and reindeer could really make a dramatic impact. However, just wolves and wild horses could make a difference to Asia.
“Our recommendations may not be suitable everywhere in the world — local assessments will judge if hunting pressures or the lack of adequate preys mean other issues need addressing before reintroducing them. However, our findings show there are huge areas of the world that could be suitable for large mammal restoration if other factors are managed,” said Dr. Carly.
1. What role did the wolves play in Yellowstone Park?| A．Protecting nature from being destroyed. | B．Keeping the balance of the ecosystem. |
| C．Creating better soil for other animals. | D．Attracting more visits to the famous park. |
| A．To find out some suitable large mammals. |
| B．To find out how travel and the industrial revolution have affected the earth. |
| C．To summarize the influence of human’s activities. |
| D．To find out the nature of the undamaged environment. |
| A．Reindeer. | B．Bison. | C．Wolf. | D．Beaver. |
| A．Make a law to ban hunting. | B．Provide sufficient food for them. |
| C．Solve other environmental problems. | D．Assess the potential surroundings. |
【推荐2】In the wild, polar bears spend much of their lives wandering pack ice (浮冰群) in search of food. These bears have adapted to a high fat diet from ocean-going animals: they are rapid and dangerous swimmers, allowing them to easily catch animals as food. Each summer, as the pack ice starts to become smaller, polar bears draw closer to land to give birth to and care for babies. Many give up food during this period, hunting again when the ice returns and living on stored fat.
Pack ice is decreasing globally. When it does form, it disappears more quickly, and tends to be thinner as well. In 2004, several polar bear deaths by drowning were recorded. The bears had been trapped on faraway areas of floating ice, and had tried to swim for land. Due to the disappearance of the ice, they were tired and drowned before reaching shore safely. This problem is likely to grow as the pack ice becomes smaller.
The disappearance of the ice has other impacts for polar bears: they are losing their natural prey (猎物), who are also affected by the loss of habitat. The bears are not very good at catching land animals, and must compete with other species for these food sources. Land animals also don’t provide the high fat diet that polar bears need, which may lead to hunger. Hungry mothers may not be able to provide their babies with the nutrition needed, which will further contribute to the drop in polar bear population.
The deadly factors brought about by global warming put polar bears at risk. Drops in birth and survival rates have already been documented, and biologists are increasingly concerned about the animals’ odd behavior as a result of the loss of their natural habitat. Environmental organizations believe a global effort is needed to fight against global warming before it is too late for polar bears, as well as many other species that call Earth home.
1. In which season are baby polar bears born?| A．Spring. | B．Summer. | C．Autumn. | D．Winter. |
| A．The disappearance of the ice has negative effects on polar bears. |
| B．Polar bears have to compete with other species for food sources. |
| C．Land animals don’t provide the high fat diet that polar bears need. |
| D．Hungry bear mothers can’t provide their babies with the nutrition needed. |
| A．Why is pack ice becoming smaller? |
| B．What measures can we take to protect polar bears? |
| C．Are polar bears in danger from global warming? |
| D．Is global warming becoming more and more serious? |
【推荐3】Have you ever seen a blue-footed booby (蓝脚鲣鸟)? It is a kind of sea bird. Here’s some information about the blue-footed booby.
The blue-footed booby is a large sea bird and it is much larger than most sea birds. It is less than three feet long. It weighs more than three pounds. Its brown wings are long and sharp.
The blue-footed booby has different colors. Its head and thick neck have brown and black streaks (条纹). The rest of its body is white. Its eyes are yellow.
The blue-footed booby only eats fish. It is an expert hunter. It looks a little clumsy on land, but it is fast and flexible (灵活的)when it catches fish. The booby flies over the water. When it sees a fish, it dives into the water. A few moments later, it rushes out of the water with the fish. The blue-footed booby has a long sharp bill. It can use its bill to catch the fish easily.
You might think the blue-footed booby is a funny name for a bird. But its name fits the bird very well.The blue-footed booby has bright blue feet. The word “booby” comes from the word “bobo”. It’s a Spanish word that means “ stupid fellow”. The blue-footed booby looks a little clumsy and stupid when it walks on the ground. That’s why it gets such a name.
1. where may you read this passage?| A．in a news report. | B．in an animal magazine. |
| C．in a movie poster. | D．in a travel guidebook. |
| A．笨拙的 | B．敏捷的 |
| C．机灵的 | D．愚蠢的 |
| A．Most sea birds are larger than he blue-footed booby. |
| B．The blue-footed booby has long harp white wings. |
| C．We can know what food the blue-footed booby eats. |
| D．The blue-footed booby can use its feet to catch fish. |
| A．What the blue-footed booby looks like. |
| B．How the blue-footed booby gets its food. |
| C．Why people love the blue-footed booby. |
| D．How the blue-footed booby gets its name. |
【推荐1】A new study shows the singing noises made by humpback whales(座头鲸) might be a sign of being lonely. Scientists who recorded humpback whale behavior in Australia discovered that fewer whales made the singing noises as their population grew.
“Humpback whale song is loud and travels far in the ocean,” said marine biologist Dunlop of the University of Queensland in Brisbane. She has long studied humpback whales and helped lead the new study. Her work has centered on humpbacks that reproduce near Australia’s Great Barrier Reef. She made an unexpected discovery as the number of whales sharply rose following the end of commercial whaling. “It was getting more difficult to actually find singers,” she said. “When there were fewer of them, there was a lot of singing. Now that there are lots of them there is no need to sing so much.”
Scientists first began to hear and study the songs of the humpback whales in the 1970s. They used underwater microphones to do so. Only male whales sing. Scientists think the whales sing to display their power.
Eastern Australia’s humpback whales came close to disappearing in the 1960s, when their number dropped to around 200. But over time the population began to regrow, climbing to about 27, 000 whales by 2015. That number is near pre-whaling levels. As the number of whales increase, their singing behaviors changed. Dunlop said while 2 in 10 males made wailing noises in 2004, 10 years later the number had dropped to 1 in 10.
It is said that humpback whales must have been singers long before whale fishing diminished their numbers. But the new study proves how necessary their beautiful songs were to their survival and recovery. Clearly singing became extremely valuable when their numbers were very low.
1. What is the probable reason why humpback whales sing according to the new study?| A．Danger. | B．Hunting. | C．Hopelessness. | D．Loneliness. |
| A．Humpback whales always keep silent. |
| B．The more humpback whales, the less singing. |
| C．The number of humpback whales increases sharply. |
| D．The farther humpback whales’ songs go, the better. |
| A．To show off their strength. | B．To sound a warning. |
| C．To leave for their home. | D．To shout for help. |
| A．Counted. | B．Doubted. | C．Protected. | D．Reduced. |
【推荐2】Interested in building a schoolyard habitat? Here’s how to get started.
Gather a team.
Students can do a lot on their own, but you’ll need adults for a project this big. Get teachers, parents, and even the headmaster interested. Don’t forget the maintenance staff-they know more about your school’s yard than anyone else and can give you lots of help.
Map your site.
Which part of the schoolyard can you turn into a habitat? Is there an unused corner of the playground? You’ll need to make a map of the area showing what is there now. Then you can figure out how you want to change it. For that, you need a plan.
Plan a habitat.
Here’s what you’ll need to make your area attractive to wildlife.
Food: Plant flowers and trees. These provide foods for birds, insects, and small animals. You can also add some feeders for birds. Where possible, stick with native plants-wild plants that grow naturally in your area. They need less care, which means less work for you.
Water: A small pond, a bird bath, or even a dish of clean water on the ground will attract birds.
Shelter: Trees make great escapes for birds. Tall grass and weeds are home to insects and some birds.
Reach for resources.
To make the habitat happen, you’ll need lots of plants, seeds, and other supplies. You’ll also need to buy or borrow tools and maybe even some heavy equipment. Now’s the time to reach out for donations. Start by asking your parent-teacher organization. Then go to garden clubs, garden stores (they might give you a discount), local government agencies, and businesses. If they can’t donate supplies or money, ask if they can donate workers!
Build your design.
Now you can dig in. Set a date, and get growing!
1. What is the part of “Plan a habitat” mainly about?| A．How to attract wildlife to the habitat. |
| B．How to raise money for the habitat. |
| C．How to find a site for the habitat. |
| D．How to find people to work on the habitat. |
| A．Find a location. |
| B．Take out a loan. |
| C．Ask for donations. |
| D．Train the maintenance staff. |
| A．It is procedurally simple. |
| B．It covers a large area of land. |
| C．It helps reduce pollution in school. |
| D．It requires much assistance. |
【推荐3】No matter where you go, you’ll notice something strange about trees—the fact that their bottoms are painted white. Generally speaking, the purpose of whitewashing is to protect trees from heat and insects.
Blocking the sun
You might sometimes notice that some tree trunks’ surfaces get dry and crack easily.
Heat protection
Defending against pests
More often than not, a tree’s surface will crack, allowing insects to creep inside.
Last but not least, the surface of trees is painted white to make them more visible, specifically for those on the side of the road. Why is that important? Because accidents involving trees are extremely common, especially during the night, when drivers can not see them much more clearly.
| A．Stopping accidents |
| B．Improving visibility |
| C．Whitewashing is a good way to solve the problem |
| D．The cause of this phenomenon has already been found |
| E．Whitewashing helps young trees remain cool in spring |
| F．However, there’re many other reasons for whitewashing trees |
| G．Bacteria will feed on the tree’s inner parts, eventually killing it |
【推荐1】Communicating effectively means more than knowing what to say and when to say it. Communication involves the subtle signals your body language sends to those who are watching. Here are some common body actions and the impressions they create:
● Fiddling (好动) — Playing with your watch or a pen looks like you’re bored or impatient.
● Clock watching — It looks like you’re to move on to something else.
● Tapping — Tapping your feet or fingers suggests you are impatient or nervous.
● Staring — An unblinking (不眨眼的) stare conveys threatening or violent behaviour.
● Legs crossed or body hunched (弓背，耸肩) — Closing up your body profile — becoming smaller — looks like you lack confidence.
● Arms crossed — If you keep your arms folded during communication, you appear to be defending yourself against the others.
● Touching your face — When you have your hand in front of your mouth, you appear very shy.
● Rubbing your nose, looking away — People who are lying often rub their nose or look away when speaking.
● No eye contact — If you won’t look the other speaker in the eye, you seem to have low interest or a lack of confidence. (Don’t forget staring above.)
How you communicate with your body language is just as important as what you say. Watch your body language and control the unconscious messages you might be sending.
1. According to the passage, effective communication includes all of the following EXCEPT _____.| A．knowing what to say |
| B．sending unconscious messages to other people |
| C．saying the right thing at the right time |
| D．getting information from the other speaker’s body language |
A． | B． |
C． | D． |
| A．cross your legs or hunch your body |
| B．avoid direct eye contact |
| C．look the other speaker in the eye |
| D．keep touching your face |
| A．How to make a good impression on others |
| B．Can you read body language? |
| C．Control your body language for effective communication |
| D．How to send effective information through body language |
【推荐2】In recent years, a growing number of companies have launched unmanned stores, hoping to reap big benefits. In these stores, electronic systems, instead of human workers, handle sales. Some of the earliest adopters of the unmanned store model have been in China. For example, the F5 Future Store, a convenience store without cashiers, opened in Guangzhou in 2014. In this store, the products are dispensed by special machines. Customers pay for them using their smartphones.
Amazon, a world leader in online shopping, has also entered the cashier-free space. Its first such supermarket, Amazon Go, opened in Seattle in February 2020 and offered over 5, 000 items for purchase. In just one year, Amazon has added twenty-five more Amazon Go stores across the country.
The cashier-free model isn't suitable for all retail stores, however. One reason is the absence of the personal touch. Since there is no cashier, the connection between customer and cashier is missing. For this reason, the cashier free model may not be appropriate for department stores where customers are used to asking cashiers about products and getting other assistance from them.
The cashier free model also has an effect on add-on sales. In stores with cashiers, customers commonly have to wait in line to check out. While in line, they often grab extra items like candy or magazines that are displayed near the register. Cashier-free stores aim to shorten or eliminate checkout lines altogether. Customers in these stores like the fact that they can check out faster without waiting in line. The stores, however, lose add-on sales.
1. What is the main purpose of this article?| A．To analyze attractive employment opportunities. |
| B．To question reports about international commerce. |
| C．To discuss a major change in human behavior. |
| D．To examine various aspects of a business trend. |
| A．It's expanded very quickly. |
| B．It's angered some of its staff. |
| C．It's faced tough competition. |
| D．It's suffered from long delays. |
| A．They save money because the goods are discounted. |
| B．They can complete their purchases more efficiently. |
| C．They're less likely to be exposed to germs and bacteria. |
| D．They're able to shop alone at any time of day or night. |
Then, consider this: you might be in a state of sub-health（亚健康）. Sub-health, also called the third state or gray state, is explained as a borderline（界限）state between health and disease.
According to the survey by the National Health Organization, over 45 percent of sub-healthy people are middle-aged or elderly. The percentage is even higher among people who work in management positions as well as students around exam-week.
Symptoms include a lack of energy, depression, slow reactions, insomnia, anger, and poor memory. Other symptoms include shortness of breath, sweating and aching in the waist and legs.
The key to preventing and recovering from sub-health, according to some medical experts, is to form good living habits, alternate work and rest, exercise regularly, and take part in open air activities.
As for meals, people are advised to eat less salt and sugar. They should also eat more fresh vegetables, fruits, fish because they are rich in nutritional elements — vitamins and other elements that are important to the body.
Nutrition experts point out that it is not good to eat too much at one meal because it may cause unhealthy changes in the digestive tract（消化道）. They also say that a balanced diet is very helpful in avoiding sub-health.
1. According to this passage, which of the following is true?
| A．When you are in a state of sub-health, you should stay at home and keep silent. |
| B．When you are in a state of sub-health, you should go to see a doctor and buy some medicine. |
| C．When you are in a state of sub-health, you should have yourself examined in foreign countries. |
| D．When you are in a state of sub-health, you should find out the reasons and relax yourself. |
| A．they have used up their energy | B．they have lost their living hopes |
| C．they have more pressure in life and work | D．they begin to get older |
| A．work hard | B．sleep more |
| C．form good living habits | D．take more medicine |
| A．arrange by turns | B．cause to take place |
| C．keep oneself busy with | D．get tired of |
【推荐1】Science and the moon have had a long relationship. It wasn’t until the last 400 years or so, however, that this relationship truly came to life. Here, we share the long journey that took us from simply looking at the moon to actually setting foot on it—and beyond.
2036
By this year, China hopes to have put its own team of astronauts on the moon. This will be the first time any human has been to the moon since 1972 s apollo missions (任务) ended.
2013
The Chang’e 3 lunar lander was launched by China, carrying the rover (月球车) Yutu to the moon. It was China’s first mission to the moon’s surface and was a success, resulting in the discovery of a new kind of mineral.
1969
NASA’s Apollo 11 mission put the first humans on the moon. The event was broadcast live on television, and over half a billion people saw Neil Armstrong take the first human steps on the moon.
1966
Luna 9, belonging to the former Soviet Union, became the first spacecraft (航天器) to perform a “soft landing” on the moon. Like Ranger 7, it was used to send images of the moon’s surface back to Earth.
1959
The former Soviet Union launched its “Luna program”, sending spacecraft to the moon. Its Luna 3 craft took the first ever photo of the so called dark side of the moon. It was also the first time humans had ever seen this part of the moon before.
1610
Italian astronomer Galileo Galilei became one of the first people to see the moon through a telescope. He later created detailed drawings of it based on his observations.
1. What happened in 2013 in the long journey to the moon?| A．The Chang’e 3 lunar lander took the first ever photo of the dark side of the moon. |
| B．Luna 9 became the only spacecraft to send images of the moon s surface back to Earth. |
| C．Yutu completed the mission and discovered a new mineral. |
| D．China hoped to have put its own team of astronauts on the moon. |
| A．Luna 9. | B．Luna 3. |
| C．Apollo 11. | D．Chang’e 3. |
| A．A fashion magazine. | B．A notice. |
| C．A history textbook. | D．A science review. |
【推荐2】Choosing where to live may be one of the biggest decisions you’ll make when you move to Sydney, but you’ll have plenty of help.
Temporary arrival accommodation
Before you move to Sydney, we recommend that you book a temporary place to stay. Once you get here, you can look for longer-term accommodation.
--sydney.edu.au/accommodation/short-term
On-campus-residential colleges (fully catered饮食全包的)
The University has eight residential colleges on the Camperdown/Darlington Campus, including International House, a residential community of global scholars. Colleges provide comfortable, fully furnished single rooms and daily meals, along with sporting, cultural, leadership and social programs. They also include on-site tutorials(辅导课) in addition to campus-based classes.
--sydney.edu.au/colleges
On-campus residences (self-catered饮食自理的)
The University has two self-run residences—Queen Mary Building (QMB) and Abercrombie Student Accommodation—on the Camperdown/Darlington Campus. Both just under a year old, they house up to 1000 students. These residences provide modern single-study rooms with large common living, learning and study spaces, shared kitchens, a theatre, gyms, soundproofed music rooms, art studios, sky lounges and rooftop gardens.
--sydney.edu.au/campus-life/accommodation/live-on-campus.html
Off-campus living
More than 90 percent of our students live off campus. The University is close to many dynamic and multicultural suburbs such as Annandale, Newtown, Chippendale and Glebe. A great place to search is our large online database of properties.
--sydney.edu.au/campus-life/accommodation/live-off-campus.html
1. Where can you find a place to live temporarily?| A．On “sydney.edu.au/colleges”. |
| B．On “sydney.edu.au/accommodation/short-term”. |
| C．On “sydney.edu.au/campus-life/accommodation/live-on-campus.html”. |
| D．On “sydney.edu.au/campus-life/accommodation/live-off-campus.html”. |
| A．Their own kitchens. |
| B．On-site tutorials. |
| C．Daily meals. |
| D．Gyms. |
| A．Living off campus. |
| B．Living in host families. |
| C．Living in self-catered flats on campus. |
| D．Living in fully catered houses on campus. |
【推荐3】The United States of America is mainly an English-speaking country. The majority of the population speak English as their native language. Besides，education，social activities，etc. are conducted in English. Across but for the most part，Americans speak one common language. This language is sometimes called American English.
However，not everyone in the USA is a native speaker of English. Most immigrants (移民)are speakers of other languages. There are hundreds of communities around the USA where English is not the most commonly used languages. Chinese，Italian，German，Greek，Spanish and French are all spoken in various communities in the USA. Spanish is the second most commonly spoken language after English.It is widely spoken in New York and across the southern part of the country. For speakers of other languages，learning English is important，but teaching people to speak English as a second language was given little attention. Non-English speakers were expected to “pick up ” the language by meeting with others in public. Recently，this has changed.
Today，most large public schools and community colleges have ESL(English as a Second Language )programs; American English teachers feel that English students should learn the language the way they will use it. Therefore，ESL programs offer different English lessons to different students. Some programs teach students to communicate in English in public. Other programs teach the kind of English people who will need for their jobs. American ESL instructional methods do not lay emphasis on grammar or translation，but on the importance of communication. The goal is to get the English learners to learn by using the language.
1. In the past the non-English immigrants___________.| A．didn’t know how to learn English | B．found that English was not important |
| C．learned English through books | D．paid special attention to teaching English |
| A．ESL | B．French |
| C．Spanish | D．Chinese |
| A．try to master | B．repeat again and again |
| C．go to school sometimes | D．learn without studying or taking lessons |
