1 . WHAT ARE RIP CURRENTS?
Rip currents are like the rivers of the sea, transporting water near the shore back out into the ocean depths. The presence of these currents can be hidden by the wild movements of the surrounding waves. This means that as well as carrying seaweed and pieces of materials quickly out to sea, they can rapidly sweep away even the strongest swimmers. Around 80 percent of all lifeguard rescues are caused by powerful rip currents pulling a swimmer into danger.
If you find yourself being pulled out to sea by an unsuspected rip current, you should remain calm, focus on staying afloat and, if you can, swim parallel to the shore. Your instincts might tell you to swim towards land, as this is where you’re aiming to get to, but the current will be too strong to swim against. Instead, aim to move across the current and into slower flowing water next to it. A rip current may only pull you just past the breaking waves, but in some cases they can take you hundreds of metres offshore. The strength of currents can be hard to predict, so it’s safest to stay on lifeguarded beaches and not to swim if you see any indication of a rip current.
| A．prevent you from swimming into danger | B．transport water out into the ocean depths |
| C．clear away seaweed and pieces of materials | D．warn lifeguards against rescue in rip currents |
| A．difference between various currents | B．two types of zones off shore |
| C．an ideal route to surf in safety | D．how rip currents form |
| A．1000 metres off the shore beyond “HEAD”. | B．The channel through the gap in a sandbar. |
| C．The location where a red flag is erected. | D．Over the narrow stretch of a sandbar. |
Walking around a digital exhibit hall in Yongle Palace in Yuncheng, Shanxi province, it is difficult not to be amazed and
Yongle Palace (palace of eternal joy), one of the three biggest Taoist temples in China, is the
In 2016 experts found that its murals were deteriorating (恶化) and that the wooden
A digital collection of murals, buildings and other movable cultural relics was created and
Xi Jiulong, head of the Yongle Palace mural art protection research institute, says technological intervention has helped bring life to history to help the public better understand it.
Visitors could also immerse
Over the past two years digital exhibitions of murals in Yongle Palace
3 . With no special equipment, no fences and no watering, two abandoned agricultural fields in the UK have been rewilded (重新野化), in large part due to the efforts of jays, which actually “engineered” these new woodlands. Researchers now hope that rewilding projects can take a more natural and hands-off approach and that jays can shed some of their bad reputations.
The two fields, which researchers have called the New Wilderness and the Old Wilderness, had been abandoned in 1996 and 1961 respectively. The former was a bare field, while the latter was grassland—both lay next to ancient woodlands. Researchers had suspected that the fields would gradually return to wilderness, but it was impressive to see just how quickly this happened, and how much of it was owed to birds.
Using aerial data, the researchers monitored the two sites. After just 24 years, the New Wilderness had grown into a young, healthy wood with 132 live trees per hectare, over half of which (57%) were oaks. Meanwhile, the Old Wilderness resembled a mature woodland after 39 years, with 390 trees per hectare.
“This native woodland restoration was approaching the structure (but not the species composition) of long-established woodlands within six decades,” the researchers explained in the study.
Part of this reforestation was done by the wind, and researchers suspect that previous ground disturbance may have aided the woodland establishment—which is good news, as it would suggest that agricultural areas may be reforested faster than anticipated. However, animals—Eurasian jays, thrushes, wood mice, and squirrels—also played an important role in helping the forests take shape. This handful of species provided much of the natural regeneration needed for the forest to develop. Jays, in particular, seem to have done a lot of heavy lifting.
1. What does the underlined word “shed” in Paragraph 1 refer to?| A．Be opposed to. |
| B．Be ashamed of. |
| C．Get used to. |
| D．Get rid of. |
| A．The scale of the woodlands. |
| B．The diversity of the fields. |
| C．The rate of the changes. |
| D．The frequency of the wilderness. |
| A．The woodland restoration was approaching the structure of long-established ones. |
| B．Much of the wilderness of the fields was owed to birds. |
| C．Previous ground disturbance aided the woodland establishment. |
| D．How quickly the fields returned to wilderness over time. |
| A．The essential role of humans in the reforestation. |
| B．The factors that contribute to the reforestation. |
| C．The importance of woodland establishment. |
| D．The threats faced by a handful of wild animals. |
1. How did the Doggerland people make a living?
| A．By hunting, | B．By farming. | C．By trading. |
| A．Scientists | B．Fishermen. | C．Historians. |
| A．Climate change. | B．Immigration. | C．Pollution. |
| A．The UN’s ancient flood stories. |
| B．The danger of flooding in the UK. |
| C．Ancient flooded land off the UK cone |
1. Which of the following is the best place for you to enjoy music in Ireland?
| A．The cities. | B．The countryside. | C．The towns. |
| A．Many famous writers lived here. |
| B．Many famous writers were born here. |
| C．Many famous writers wrote about Dublin. |
| A．Less than 115 years. | B．About 140 years. | C．More than 150 years. |
6 . The grass swung gently above a crack in the limestone (石灰岩) and Ludvik Husu realized he had found what he was searching for: a new cave in Slovenia’s dramatic Karst (喀斯特) region.
The cave enthusiast, with more than 50 years of experience, told AFP that “the conditions were perfect ... all the signs pointed to something beneath” as he felt the air current push up from below.
The 63-year-old had come across a new, 60-meter-deep limestone cave, a discovery that made the headlines this summer in a country that prides itself on its 14,000 underground caves.
The tiny Alpine nation is unusually rich in caves, which are a major tourist attraction. Perhaps the best known is the Postojna cave system, the longest in Europe, discovered by another amateur enthusiast two centuries ago. It extends for 24 kilometers and has offered up valuable finds for biologists.
Stanislav Glazar, a Postojna cave guide, told AFP that more than 150 species have been discovered in the system.
Glazar said Postojna is one of the richest caves in the world “in limestone formations.” The cave, located about 50 kilometers south of the capital Ljubljana, was also home to the world’s first cave tourist train, which began transporting visitors in 1872.
Elsewhere in the Karst region, the cave systems are of historical, cultural and even extraterrestrial interest. For instance, the UNESCO-listed Skocjan system was where the European Space Agency sent some astronauts to prepare for life in space.
“Astronauts know that the Karst world is exceptional, in a similar way to the environment in space: you don’t know what to expect at your next step,” said Skocjan Caves director Tomaz Zorman.
But for Husu, it’s the exploration that proves most rewarding. Once he knows there is something beneath, he digs around the crack to widen it and alerts fellow cavers to help gain access. He then uses ropes and a lamp to go down to what are vertical entrances in most caves. But doesn’t he feel scared to enter such unexplored depths?
“You enter a cave out of curiosity — there is no fear! Those who feel fear should stay home,” he said.
1. What was people’s attitude towards Ludvik Husu’s new finding this summer?| A．Critical. | B．Positive. | C．Doubtful. | D．Indifferent. |
| A．It has little biological value. |
| B．It has diverse limestone formations. |
| C．It is the most famous cave system in Europe. |
| D．It has been open to the public for two centuries. |
| A．Financial. | B．Political. | C．Alien. | D．Biological. |
| A．Slovenia is known for its Karst landforms. |
| B．Ludvik Husu started exploring caves before he was 13. |
| C．Slovenia has the most underground caves in the world. |
| D．Ludvik Husu is often upset about entering unexplored caves. |
7 . Mount Tai, located just north of Tai’an city in East China’s Shandong Province, is a mountain of historical and cultural
Among the Five Sacred Mountains (the other four are Heng Mountain of Hunan Province, Hua Mountain of Shaanxi Province, Song Mountain of Henan Province and Heng Mountain of Shanxi Province), Mount Tai is only the third highest. Why is it seen as the
In absolute terms, Mount Tai cannot be considered as the highest of China’s mountains, but because it is
Many Chinese emperors climbed to the top for enthronement (登基) or other significant ceremonies in ancient China, for they considered it to be a
Mount Tai is famous for its various stone inscriptions, which are the works of either ancient emperors or celebrities. The stone inscriptions
| A．evidence | B．significance | C．confidence | D．existence |
| A．partner | B．member | C．leader | D．laggard |
| A．close | B．far | C．remote | D．proper |
| A．absolute | B．relative | C．real | D．perfect |
| A．altitude | B．width | C．longitude | D．attitude |
| A．However | B．Therefore | C．Otherwise | D．Moreover |
| A．chance | B．change | C．death | D．renewal |
| A．gift | B．symbol | C．beginning | D．call |
| A．look at | B．go through | C．look for | D．go back |
| A．preserved | B．ruined | C．collected | D．hid |
| A．newspapers | B．information | C．articles | D．advertisements |
| A．combine | B．change | C．stop | D．increase |
| A．exciting | B．famous | C．delicate | D．rough |
| A．importance | B．magnificence | C．possibility | D．difference |
| A．powerless | B．pale | C．weak | D．forceful |
8 . The Silk Road is arguably the most famous long-distance trade route of the ancient world. This passage connected Europe in the West with China in the East, and allowed the exchange of goods, technology, and ideas between the two civilizations. Although merchants could make huge profits travelling the road, it was not without risk.
The main Silk Road started in Chang’an (known today as Xi’an), the early Han capital. Travelers commencing their journey from this city could take a northern route that would take them across China’s northwestern provinces. After this, they would face the Gobi Desert, arguably the greatest danger of the Silk Road.
The Gobi Desert, the largest desert in Asia, consists mainly of rocky, hard earth. This feature made it easier for traders to travel across, compared to sandy deserts like the neighboring Taklamakan Desert. Like other deserts, the Gobi Desert is dry and hot, and therefore the biggest challenge travelers faced was obtaining enough water for themselves as well as for their camels.
So, rest stops were created along the route, allowing travelers to rest, eat and drink. These places also promoted the exchange of goods, and even ideas, amongst the travelers who stopped there. Usually, the rest stops were placed within a day’s journey of each other. In this way, travelers could avoid spending too much time in the desert, which would make them targets for robbers, another danger of the Silk Road.
Once through the Gobi Desert, travelers would continue their journey into Iran, Turkey, and finally Europe. While this part of the journey may have been less dangerous, it is not entirely without its perils (风险).
1. The underlined word “it” in the first paragraph refers to _________.| A．making huge profits | B．traveling the Silk Road |
| C．exchanging goods and ideas | D．connecting different civilizations |
| A．The desert’s surface was easier to walk on. |
| B．Camels for transportation were easier to find. |
| C．It was smaller and could be crossed in less time. |
| D．There were more natural water sources available. |
| A．Travelers were offered free accommodation. |
| B．They were located around the edges of the desert. |
| C．They were shared by travelers from different countries. |
| D．Exchanging goods and ideas there was entirely without risk. |
| A．The origins of the Silk Road. |
| B．The benefits of the Silk Road. |
| C．The difficulties faced by Silk Road travelers. |
| D．The cultural exchanges among Silk Road travelers. |
9 . To understand the effect of ice melting (融化) around the world we first have to understand what an ice sheet actually is. Covering 5.4 million square miles in Antarctica (南极洲) and 656,000 square miles in Greenland, an ice sheet is actually a huge land of ice from the Ice Age. These sheets form in areas where snow that falls in winter does not melt entirely over the summer. This ice, home to different species of animals, is now melting at a rate that cannot support the life it currently holds.
Many of these creatures rely on ice sheets as land for resting, hunting and protection, yet as the size decreases, they are forced out of their homeland in search of other land on which to live. Often this means journeys to search for food and an imbalanced ecosystem happens when different species are forced together onto the coast.
Since the 1990s, the deer population has dropped by 56 per cent—climate change has caused warmer temperatures over winter setting off rainfall instead of snow, which freezes more quickly underfoot and makes it harder to walk and search for food. In the summer, frozen layers of land melts and releases trapped diseases which bring death to animals. A similar situation has fallen on the polar bears who suffered a 40 per cent population loss between 2001—2010.
Quite apart from these problems, the threat of sea levels rising if the ice caps were to disappear is approaching. If the Greenland Ice Sheet melted, the sea level would rise around six meters, and if the Antarctic Ice Sheet melted, sea levels would rise by around 20 feet. As a matter of fact, sea levels have risen about eight inches since 1880, three of which we’ve gained over the last 25 years. This seemingly small amount has already caused dangerous flooding, loss of farmland and more deadly storms.
While we’re still a long way from losing the ice sheets all together, we’ve already lost too much and if we don’t take climate change seriously now, we will certainly hit the point of no return.
1. What is an ice sheet according to the passage?| A．It is an area where ice never melts in summer. |
| B．It is a land of ice that covers all Greenland. |
| C．It is a large area of ice that exists for centuries. |
| D．It is an ice world for animals to live on. |
| A．It makes it easier to travel to other land. |
| B．It increases the population of sea animals. |
| C．It makes their surroundings more comfortable. |
| D．It causes hunger and illness among animals. |
| A．Ice sheet will soon disappear from the Earth. |
| B．Sea levels are rising faster in recent years. |
| C．Greenland will be the first to lose all its ice. |
| D．All natural disasters happen due to sea level rise. |
| A．Effect of Melting Ice Sheets | B．Ice, Sea and Animals |
| C．Greenland and Antarctica | D．Changes of Sea Levels |
In an afternoon of 1929, a farmer and his son in a village of China’s Sichuan Province accidentally discovered a true wonder of civilization when
Sichuan Province and its capital Chengdu are a focal point for
Treasures
