Great white sharks in the Pacific Ocean. Wildebeest in Africa. Arctic terns in the Atlantic. At first, these animals seem     1     (complete) different. One swims, one walks, and the other flies. But they all have one thing     2     common. They all migrate.

Some migrating animals move to a place     3     has a better temperature. Some go to find food or water. The groups travel as one, trying to survive. During the trip, they face     4     (many) challenges than we can imagine.

One challenge is distance (距离). Some migrating animals take very long trips. They go far away from     5     (they) home areas. For example, one great white shark swam from Australia to South Africa and back. In nine months, it swam about 20,000 kilometers.

Another challenge is finding enough food and water during the journey. For example, each Mali elephant needs more     6     200 liters (公升) of water each day. To get this, they need     7     (go) from one waterhole to another.

In addition, migrating animals have to avoid other animals that want to eat them. For example, the zebra has to stay away from lions. Traveling as a group     8     (help) keep them safe. All the zebras in the group can watch for danger. When one zebra is in trouble, the other members make a circle around it.

By     9     (work) as a group, migrating animals can survive some of the world’s most     10     (wonder) journeys.

Spending time in the great outdoors is a full-on sensory experience with endless skies, beautiful forests, the sounds of the wind and the warm feeling of sunrays     1     (rest) on your face. In addition to nature’s     2     (enjoy) sights, sounds and sensations, the familiar smells of nature can be just as appealing. In fact, a recent study found that nature doesn’t just smell good, but its fragrances make people feel good as well.

The researchers from the University of Kent in the UK     3     (send) 194 participants to relax in the woodlands throughout the four seasons. The participants reported feeling relaxed when they smelled     4    they described as “fresh air” or “earthy” smells. According to the study, these smells brought back fun memories of their childhoods.     5    instance, pine trees made some participants think about Christmas.

“We found that smells affected multiple fields of well-being with physical well-being discussed most    6     (frequent), particularly in relation to relaxation, comfort and rejuvenation (恢复活力),” wrote the researchers in the study. They also found that people feel more settled in a smell-free zone, with this result possibly     7     (link) to the absence of bad- smelling urban smells, like pollution.

Dr Jessica Fisher, study co-author, pointed out these results could     8     (apply) in future practice. In his opinion, when    9     comes to enjoying a hike in the woods or a picnic under the open skies, it pays     10     (keep) not only one’s eyes and ears, but also one’s nose, open.

The traditional Chinese calendar divides the year into 24 solar terms. Jingzhe (惊蛰),   or Awakening of Insects,     1     (fall) on March 5 and ends on March 20 this year.

The solar term signals a rise in temperature and increased rainfall,     2     (mark) the third solar term in the solar year. Its name alludes to (暗指) the awakening of animals     3     (sleep) in winter and everything beginning to come back     4     life.

Jingzhe is an extremely important time for farmers and     5     (see) as the beginning of the busiest time for agricultural work. Old Chinese     6     (say) such as “once Jingzhe comes, spring plowing (春耕) never rests” reveal the importance of this term to farmers. During this period, most parts of China experience a rapid increase in temperatures and a marked increase in sunshine,     7     provide the ideal conditions for farming activities.

Eating pears around Awakening of Insects is     8     widely practiced custom in China. One theory behind the practice is that as the Chinese word for “pear” sounds the same as the character meaning “to leave”, consuming pears during this solar term showed people’s wish to drive away pests from crops so that there would be a good harvest throughout the year.     9       (additional), according to theories of traditional Chinese medicine, the sweet, juicy and cold fruit can be good for the lungs     10     (prevent) coughs as the weather warms up and the air becomes dry.

Everyone loves a day at the beach, but if you come across litter on the sand, it makes everything worse. One man is doing his part to clean up local beaches, and has invented     1     (innovate) tools to help with that job. Based in Texas, Glenn Morris uses custom grabbers to pick up the rubbish and a remote-controlled car     2     (top) with a waste container to make the process easy and efficient.

Morris     3     (found) the group LitterBuggies a few years ago, and hopes that these remote-controlled cars will make     4     easier for others to keep their surroundings clean. “There are an estimated 5.25 trillion pieces of plastic waste in the ocean     5     have significant impacts     6     marine life. This number is expected     7     (double) within the next ten years,” the litterBuggles website states. “We hope to expand our activities into a larger movement, with the goal of making as big a     8     (different) as possible.”

A couple of days a week, Morris visits local beaches equipped with his grabber and remote-controlled car, and films himself     9     (collect) rubbish littering the shore. It is inspiring to see how Morris     10     (patient) picks up all the waste, leaving behind a clean and tidy beach.

The “hottest” tourist city this winter in China is undoubtedly the picturesque ice city Harbin in Northeast China,     1     has become an Internet sensation (轰动).

Recently, a group of children from Nanning, Guangxi,     2     (wear) orange down jackets and blue pants, launched a unique study tour in Harbin. They were referred to     3     the “little tangerines (橘子)”, with the youngest only 3 years and 5 months old. The nickname stood for both their cute orange outfits and Guangxi’s well-known production. The use of orange coats     4     (choose) by a vote among the parents was primarily for safety reasons.

Each day, their attractive presence was trending on various social media     5     (platform). Wherever they went, they were     6     (warm) hugged and showered with love by the locals.

In Harbin, they enjoyed the local delicacies     7     watched a firework display amid the snowy landscape. At the northernmost police outpost of China, they sang the national anthem and showed respect for the border guards, marking     8     important part of their educational trip. Moreover, the police officers at the station prepared snow sculptures and snowmen     9     (treat) the “little tangerines”.

In return for the hospitality (好客) received in Heilongjiang, a lot of tangerines from Lipu of Guangxi     10     (send) to the province next week.

When it comes to the Mid-Autamn Festival, Chinese people will     1     (certain) mention the Jade Rabbit. The Jade Rabbit lived on the moon. In ancient China, the moon     2     (consider) the most sacred (神圣的) and powerful natural force. The Jade Rabbit was said to be the pet of the Moon Goddess Change’s. She loved the Jade Rabbit and often     3     (keep) it company in the Moon Palace. The rabbit was so smart and kind     4     it was able to solve any problem that Chang’e faced. This story of the Jade Rabbit and the Moon Godddess Chang’e has been passed down for     5     (generation).

Today, the Jade Rabbit can be seen everywhere from toys     6     clothing. On the night of the Mid-Autumn Festival, children can be seen climbing up hills with paper rabbit lanterns (灯笼)     7     (enjoy) the moon’s beauty and express their     8     (admire) for the Jade Rabbit. It has even become a popular topic on social media, with people     9    (share) photos of themselves with the Jade Rabbit. We can see that the Jade Rabbit remains a beloved system of the beauty and power of the moon     10     continues to play a central role in the Mid-Autumn Festival celebrations.