1 . Washington, D.C. Bicycle Tours
Cherry Blossom Bike Tour in Washington, D.C.
Duration: 3 hours
This small group bike tour is a fantastic way to see a world-famous cherry trees with beautiful flowers of Washington, D.C. Your guide will provide a history lesson about the trees and the famous monuments where they blossom. Reserve your spot before availability — the cherry blossoms—disappear!
Washington Capital Monuments Bicycle Tour
Duration: 3 hours (4 miles)
Join a guided bike tour and view some of the most popular monuments in Washington, D.C. Explore the monuments and memorials on the National Mall as your guide shares unique facts and history at each stop. Guided tour includes bike, helmet, cookies and bottled water.
Capital City Bike Tour In Washington, D.C.
Duration: 3 hours
Morning or Afternoon, this bike tour is the perfect tour for D. C. newcomers and locals looking to experience Washington, D.C. in a healthy way with minimum effort. Knowledgeable guides will entertain you with the most, interesting stories about Presidents, Congress, memorials, and parks. Comfortable bikes and a smooth tour route(路线) make cycling between the sites fun and relaxing.
Washington Capital Sites at Night Bicycle Tour
Duration: 3 hours (7miles)
Join a small group bike tour for an evening of exploration in the heart of Washington, D.C. Get up close to the monuments and memorials as you bike the sites of Capitol Hill and the National Mall. Frequent stops are made for photo taking as your guide offers unique facts and history. Tour includes bike, helmet, and bottled water. All riders are equipped with reflective vests and safety lights.
1. Which tour do you need to book in advance?| A．Cherry Blossom Bike Tour in Washington, D.C. |
| B．Washington Capital Monuments Bicycle Tour. |
| C．Capital City Bike Tour in Washington. |
| D．Washington Capital Sites at Night Bicycle Tour. |
| A．Meet famous people. | B．Go to a national park. |
| C．Visit well-known museums. | D．Enjoy interesting stories. |
| A．City maps. | B．Cameras. |
| C．Meals. | D．Safety lights. |
2 . Rainforests are home to a rich variety of medicinal plants, food, birds and animals. Can you believe that a single bush（灌木丛）in the Amazon may have more species of ants than the whole of Britain! About 480 varieties of trees may be found in just one hectare of rainforest.
Rainforests are the lungs of the planet-storing vast quantities of carbon dioxide and producing a significant amount of the world's oxygen. Rainforests have their own perfect system for ensuring their own survival; the tall trees make a canopy（树冠层）of branches and leaves which protect themselves, smaller plants, and the forest animals from heavy rain, intense dry heat from the sun and strong winds.
Amazingly, the trees grow in such a way that their leaves and branches, although close together, never actually touch those of another tree. Scientists think this is the plants' way to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects like caterpillars. To survive in the forest, animals must climb, jump or fly across the gaps. The ground floor of the forest is not all tangled leaves and bushes, like in films, but is actually fairly clear. It is where dead leaves turn into food for the trees and other forest life.
They are not called rainforests for nothing! Rainforests can generate 75%of their own rain. At least 80 inches of rain a year is normal-and in some areas there may be as much as 430 inches of rain annually. This is real rain-your umbrella may protect you in a shower, but it won't keep you dry if there is a full rainstorm. In just two hours, streams can rise ten to twenty feet. The humidity（湿气）of large rainforests contributes to the formation of rainclouds that may travel to other countries in need of rain.
1. What can we learn about rainforests from the first paragraph?| A．They produce oxygen. | B．They cover a vast area. |
| C．They are well managed. | D．They are rich in wildlife. |
| A．Heavy rains | B．Big trees. |
| C．Small plants. | D．Forest animals. |
| A．For more sunlight. | B．For more growing space. |
| C．For self-protection. | D．For the detection of insects. |
| A．Life-Giving Rainforests | B．The Law of the Jungle |
| C．Animals in the Amazon | D．Weather in Rainforests |
3 . In the 1960s, while studying the volcanic history of Yellowstone National Park, Bob Christiansen became puzzled about something that, oddly, had not troubled anyone before: he couldn’t find the park’s volcano. It had been known for a long time that Yellowstone was volcanic in nature — that’s what accounted for all its hot springs and other steamy features. But Christiansen couldn’t find the Yellowstone volcano anywhere.
Most of us, when we talk about volcanoes, think of the classic cone(圆锥体) shapes of a Fuji or Kilimanjaro, which are created when erupting magma(岩浆) piles up. These can form remarkably quickly. In 1943, a Mexican farmer was surprised to see smoke rising from a small part of his land. In one week he was the confused owner of a cone five hundred feet high. Within two years it had topped out at almost fourteen hundred feet and was more than half a mile across. Altogether there are some ten thousand of these volcanoes on Earth, all but a few hundred of them extinct. There is, however, a second less known type of volcano that doesn’t involve mountain building. These are volcanoes so explosive that they burst open in a single big crack, leaving behind a vast hole, the caldera. Yellowstone obviously was of this second type, but Christiansen couldn’t find the caldera anywhere.
Just at this time NASA decided to test some new high-altitude cameras by taking photographs of Yellowstone. A thoughtful official passed on some of the copies to the park authorities on the assumption that they might make a nice blow-up for one of the visitors’ centers. As soon as Christiansen saw the photos, he realized why he had failed to spot the caldera: almost the whole park—2.2 million acres—was caldera. The explosion had left a hole more than forty miles across—much too huge to be seen from anywhere at ground level. At some time in the past Yellowstone must have blown up with a violence far beyond the scale of anything known to humans.
1. What puzzled Christiansen when he was studying Yellowstone?| A．Its complicated geographical features. |
| B．Its ever-lasting influence on tourism. |
| C．The mysterious history of the park. |
| D．The exact location of the volcano. |
| A．The shapes of volcanoes. |
| B．The impacts of volcanoes. |
| C．The activities of volcanoes. |
| D．The heights of volcanoes. |
| A．Hot-air balloon. | B．Digital camera. |
| C．Big photograph. | D．Bird’s view. |
4 . Not every architectural landmark is grand in scale, with splendid decorations, or amazing colors. Suzhou Gardens may just be the opposite.
When a group of monks during the Yuan Dynasty (1271-1368) first constructed Lion Grove Garden, they may have just wanted to enjoy a quiet place, hidden away from urban noise, while in the following centuries, this charming garden - most notable for its waterside rockeries resembling the shape of lions—has attracted a constant stream of celebrity guests, who have left a long list of poems, paintings and historical anecdotes (轶事).
In recent years, nine of the best-known classical gardens of Suzhou, including Lion Grove Garden, Humble Administrator’s Garden and Great Wave Pavilion, were registered into the World Heritage List. As UNESCO remarks, “Classical Chinese garden design, which seeks to recreate natural landscapes in miniature (缩略图), is nowhere better illustrated than in the nine gardens, which reflect the profound natural beauty in Chinese culture and inspire people to pursue harmony with the world.”
Nowadays, relevant administrations have been trying to restore the historical landscapes of Suzhou’s classical gardens. Consequently, last year, a new project was launched allowing tourists in small groups to reserve places to enter the garden in the early morning before the regular opening time. Their visit ended with them completing the last step in making a traditional folding fan, adding a poem about the garden on its surface. The experience was also regarded as a way to help people understand the wisdom, elegance and philosophical worldview of the ancient Chinese literati (文人).
The delicate beauty of the gardens still flows via the canals that snake across Suzhou. Hardly felt, their strength in shaping the city’s character seems to last forever.
1. What’s the purpose of building the Lion Grove Garden?| A．To share historical anecdotes. |
| B．To attract celebrity guests. |
| C．To enjoy the beautiful scenery. |
| D．To stay far from the madding crowd. |
| A．Splendid decorations. |
| B．Grand beauty. |
| C．Human-nature harmony. |
| D．Amazing colors. |
| A．It featured traditional Chinese elements. |
| B．Small groups without reservation were welcome. |
| C．Its main aim was to help people approach poems. |
| D．It was launched when the gardens were open to the public. |
| A．Suzhou Gardens, a place of national pride. |
| B．Suzhou Gardens, a place with natural beauty. |
| C．Suzhou Gardens, a place that shows the decorations and colors. |
| D．Suzhou Gardens, a place that reflects the philosophy and culture. |
5 . By the end of the century, if not sooner, the world’s oceans will be bluer and greener thanks to a warming climate, according to a new study.
At the heart of the phenomenon lie tiny marine microorganisms(海洋微生物) called phytoplankton. Because of the way light reflects off the organisms, these phytoplankton create colourful patterns at the ocean surface. Ocean colour varies from green to blue, depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas, while reducing it in other spots, leading to changes in the ocean’s appearance.
Phytoplankton live at the ocean surface, where they pull carbon dioxide(二氧化碳) into the ocean while giving off oxygen. When these organisms die, they bury carbon in the deep ocean, an important process that helps to regulate the global climate. But phytoplankton are vulnerable to the ocean’s warming trend. Warming changes key characteristics of the ocean and can affect phytoplankton growth, since they need not only sunlight and carbon dioxide to grow, but also nutrients.
Stephanie Dutkiewicz, a scientist in MIT’s Center for Global Change Science, built a climate model that projects changes to the oceans throughout the century. In a world that warms up by 3℃, it found that multiple changes to the colour of the oceans would occur. The model projects that currently blue areas with little phytoplankton could become even bluer. But in some waters, such as those of the Arctic, a warming will make conditions riper for phytoplankton, and these areas will turn greener. “Not only are the quantities of phytoplankton in the ocean changing. ” she said, “but the type of phytoplankton is changing.”
And why does that matter? Phytoplankton are the base of the food web. If certain kinds begin to disappear from the ocean, Dutkiewicz said, “it will change the type of fish that will be able to survive.” Those kinds of changes could affect the food chain.
Whatever colour changes the ocean experiences in the coming decades will probably be too gradual and unnoticeable, but they could mean significant changes. “It’ll be a while before we can statistically show that the changes are happening because of climate change,” Dutkiewicz said, “but the change in the colour of the ocean will be one of the early warning signals that we really have changed our planet.”
1. What are the first two paragraphs mainly about?| A．The various patterns at the ocean surface. |
| B．The cause of the changes in ocean colour. |
| C．The way light reflects off marine organisms. |
| D．The efforts to fuel the growth of phytoplankton. |
| A．Sensitive. | B．Beneficial. | C．Significant. | D．Unnoticeable. |
| A．Phytoplankton play a declining role in the marine ecosystem. |
| B．Dutkiewicz’s model aims to project phytoplankton changes. |
| C．Phytoplankton have been used to control global climate. |
| D．Oceans with more phytoplankton may appear greener. |
| A．To assess the consequences of ocean colour changes. |
| B．To analyse the composition of the ocean food chain. |
| C．To explain the effects of climate change on oceans. |
| D．To introduce a new method to study phytoplankton. |
6 . 4 Best Places to Travel in 2023
2023 is the year when travel returns in a big way. To get you started, we’ve rounded up some of the best places to travel in 2023. All you need to do is pick the place that appeals to you.
Copenhagen
With its fantastic houses, clean streets and colorful architecture, Copenhagen is regarded as the most livable city on the earth. Named the World Capital of Architecture for 2023, Copenhagen will offer a series of major artistic events and programs sure to delight architects and design lovers.
Bhutan
For travelers with a sense of adventure and a love of discovery, Bhutan has always been a must-go destination. In 2023, travelers can once again explore the Trans Bhutan Trail, which runs 250 miles from east to west, offering visits to the century-old communities along the journey. The trail spans (横跨)18 major bridges and national parks and connects more than 400 historic and cultural sites.
Bordeaux
The coming years will be sporty in the historical wine region of Bordeaux in France. In 2023, the city will host the Rugby World Cup, an intense and stressful game. Beyond sports, Bordeaux is one of the favorite historical cities, with more than 350 structures that are either nationally or regionally listed as historical monuments.
Namibia
Wildlife and adventure lovers looking for a unique path in African Safari trips should head straight to Namibia in 2023 — this country in southern Africa is the perfect place to travel to reconnect with nature and escape the modern stresses of life. On the wildlife front, you may see lions along with giraffes and elephants.
1. What is Copenhagen well-known for?| A．The natural landscape. | B．The adventure travel. |
| C．Eye-catching architecture. | D．Famous art designers. |
| A．Modern communities. | B．Cultural relics. |
| C．Historical wine regions. | D．National monuments. |
| A．Copenhagen. | B．Bhutan. | C．Bordeaux. | D．Namibia. |
7 . 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. |
8 . For thousands of years, Chinese writers have travelled all over the country to take down notes about the geographical conditions of each city. Among them, well-known Chinese geographer and writer Li Daoyuan, in the Northern Wei Dynasty (386-534), composed his book, Commentary on the Water Classics, after studying the original literary version, Water Classics. He later expanded the river records to 1, 252 from the original 137.
The book is now being studied again by Professor Li Xiaojie and his team from Fudan University. They have been using drawing software and 3D modelling to recreate the waterway situations on a map based on the book description. So far, they have completed research on four rivers.
“Ancient people knew really well how to apply the power of nature to technical considerations,”Li said, giving the example of Qianjin’e, one of the most famous ancient water conservation projects in Luoyang, Henan. In order to lead the river into the city for irrigation (灌溉) in ancient Luoyang, the officials built a canal branch by separating a northwest-southeast river. However, the canal water wasn't enough to support the citizens in dry seasons. To solve that, on the northern side of the canal branch, the officials built a reservoir (水库) and a channel to lead the water to the canal branch, where the waterways would converge and flow together to the city.
In Commentary on the Water Classics, a total of 2, 800 cities are recorded with details. Still, the process of recreation takes much effort. After doing a lot of text analysis and fieldwork, the team has gradually created the model with 3D modelling software based on repeated deductions (推论).
For Professor Li, the book is not only a record of the natural landscape over 1, 000 years ago, but also a detailed description of humanity and culture and a treasure for today’s reference.
1. What can we learn about the book Commentary on the Water Classics?| A．It has been out of date. | B．It explains 3D modelling. |
| C．It keeps records of 137 rivers. | D．It is based on previous studies. |
| A．Join. | B．Pass. | C．Cross. | D．Begin. |
| A．Its major problems. | B．Its detailed analysis. |
| C．Its complex process. | D．Its successful application. |
| A．3D Technology Fuels Modern Research |
| B．Ancient Classics Inspire Modern Research |
| C．An Effective Approach to Model Recreation |
| D．A Famous Writer of Chinese Ancient Classics |
9 . The Dead Sea might be the most famous saline body in the world, but it’s by no means the only one. Here, we uncover some other salt lakes around the world.
Dead Sea
The most famous of the lot, the Dead Sea—also known as the Salt Sea—is a natural place to start. It’s technically not a sea at all, but a land salt lake. Its waters are mainly drawn from the Jordan River, and the high salinity (盐度) means no life can survive here, so don’t expect any colorful fish. However, much amusement results from the sea’s buoyancy (浮力): Bring some reading material to the waters and lie back—nature will do the rest.
Lake Assal
Surrounded by black volcano rocks, Lake Assal takes the title of being the lowest point in Africa. Vast salt fields mark its edges; the lake has long been at the centre of the area’s salt trade, on which the region’s African locals still rely. Though the area might not be suitable to live in, the waters are rich in minerals and related to health benefits.
Great Salt Lake
The biggest salt lake in the western hemisphere, and the one that gave Salt Lake City its name, the Great Salt Lake finds its home in northern Utah. What makes the lake well-known is not only the lake’s blue and green waters and white-sand beaches, but also Great Salt Lake State Park and Antelope Island State Park, both offering super hiking and biking trails, and great long views.
Don Juan Pond
Don Juan Pond might not win any prizes for its beauty—at four inches deep, it’s little more than a pond, but it is worth visiting. Its salinity content of almost 40 percent makes it one of the saltiest bodies of water on Earth, meaning it doesn’t freeze even when Antarctic temperatures drop to -50℃. And with suggestions that water in a similar form could exist on Mars, there’s more than one reason for scientists to study this fascinating dry, cold environment.
1. What can visitors probably do in Lake Assal?| A．Read books. | B．Have a hike. |
| C．Enjoy small fishes. | D．Take a bath in the lake. |
| A．Its great parks. | B．Its scientific value. |
| C．Its highest salinity. | D．Its specific location. |
| A．Dead Sea. | B．Lake Assal. |
| C．Don Juan Pond. | D．Great Salt Lake. |
10 . Temples have long served an important role since the early years of civilization. Whether you are seeking a sense of spiritual enlightenment or looking to learn more about a certain religion, these beautiful temples are worth a stop on your vacation.
Paro Taktsang in the Paro Valley, BhutanSituated on a steep cliff in Bhutan’s Paro Valley, the “Tiger’s Nest” earned its nickname from an 18th-century tale detailing Buddhist master Padmasambhava arriving to the site on a flying tiger. The journey to the cliffside is quite the challenge, requiring guests to climb two hours on a steep trail.
Seiganto-ji in Nachikatsuura, JapanNeighboring the tallest waterfall and set against the lush trees of Nachi, Seiganto-ji dates back to the 4th century. Seiganto-ji is now the first stop on the Saigoku Kannon Pilgrimage, where individuals travel to 33 Buddhist temples throughout the Kansai region of Japan.
Man Mo Temple in Hong KongThis Buddhist and Taoist temple was built to honor the god of literature and the god of war, and the inscriptions found in the temple hall imply its construction may have taken place around 1847. It is still highly active and visited by local worshippers, so it’s asked that any visitor coming to the temple is prohibited from taking photos out of respect.
Kek Lok Si Temple, MalaysiaPenang is often touted(吹捧) for its sandy beaches and emerald blue waters, but it’s also home to the largest Buddhist temple in Malaysia. A melting pot of cultures, the temple’s architecture showcases Chinese, Thai, and Burmese styles throughout its stunning seven stories. It’s estimated there are 10,000 statues of Buddha depicted throughout its main pagodas(宝塔).
1. If you hope to enjoy a sea view, which temple is the best choice?| A．Paro Taktsang in the Paro Valley, Bhutan. | B．Seiganto-ji in Nachikatsuura, Japan. |
| C．Man Mo Temple in Hong Kong. | D．Kek Lok Si Temple, Malaysia. |
| A．Kek Lok Si Temple is the largest temple in Malaysia. |
| B．Paro Taktsang earned its nickname due to its unique location. |
| C．Seiganto-ji is a time-honored temple with magnificent surroundings. |
| D．Visitors tend to take photos to show their respect for Man Mo Temple. |
| A．A travel journal. | B．A tourist brochure. |
| C．A geography textbook. | D．An academic article. |
