5 . Ever since Scott Waters watched the Disney movie “20, 000 Leagues Under the Sea” he’s wanted to ______ his own submarine (潜水艇). “I watched it over and over, and I got ______ for a submarine back in the first grade,” he said. Now, Waters has finally realized his lifelong ______ to build an______ working submarine.

The Submarine is ______ by eight batteries placed at the bottom of the submarine. When fully _______, the submarine is designed to travel at 4. 5 miles per hour.

Waters decided to ______ his submarine “Trustworthy”. He and several volunteer workers and divers ______ put it into Milford Lake.

“The next thing we’ll do is dive it with me inside, with ______ hanging onto it,” he said. The divers helping Waters were Radley Ramsey and Pat Cox who has worked more than 40 years as an environmental engineer. “We’re here to ______ Scott,” Cox said. “I’ve done diving all over the world, ______ this is the first time I’ve done this around a _______. ”

Waters said he doesn’t know the total ______ of the submarine, since some of the things were donated and all of the labor was ______ , but he would ______ it’s somewhere between ＄5, 000 and $10, 000.

Waters said he knew it would be ______ to build a submarine, but he didn’t ______ it to be as difficult as it was. “It was a ______ and a struggle at times,” he said “But if something feels _______ , I keep doing it until it’s done.” Waters hopes that when his submarine is fully operational, it can ________ underwater search.

7 . How to Maintain a Healthy Body Weight

Our life is too much involved in work, earning money and eating junk food. Keeping the body in good shape should be the first priority in our daily schedule. Nutrition is a key factor, but our health depends not only on what nutrients we eat, but how much of those nutrients we absorb, and how well and how regularly the body’s waste products are eliminated.     1     Once these are in place, you can achieve your ideal shape.

    2     Eating lots of pizzas, burgers, and so on not only makes you feel lazy and increases your body fat, but it can also cause heart problems.

When you see these words on the menu, skip these items altogether or share them so that you can eat a smaller part: “fried”, “cream sauce”, “cheese” and “dipped”. Don’t give up on going out to eat. Simply learn how to do it the right way and get a sense of how many calories there are in what you are ordering.

Find an exercise that you like. Don’t simply start exercising. Experiment with different activities in different settings with different people until you find the one that you love doing.

    4     You won’t do it often enough to maintain a healthy body weight unless you love it.

Make friends with people who you notice exercising in the neighborhood or walking at lunchtime. Take your lunch breaks with people who take a packed lunch to work. Your aim is to find like-minded people that share the goal of maintaining a healthy body weight. They can work out with you, give you tips and encourage you to keep going whenever you want to quit.

8 . Buried beneath a sand dune, in the beach town of Beidaihe, lies one of China’s newest art galleries. The UCCA Dune Art Museum is actually the home of “one of the few remaining un-destroyed dunes in northern China”.

Instead of placing the museum on top of the dunes which was originally planned, Li Hu, one of the founding partners of the project, decided to bury the building beneath them to preserve the coastal ecology. The ancient sand dune in which the museum is now housed was due to be flattened to make way for development.

Its walls and windows and the wooden tables in its café were handmade from local materials, collective wisdom of the craftsmanship of the Hebei region. However，the modern methods of construction lessened the need for man-made objects that might disturb the native ecology. “We adopted a series of strategies in order to protect the fragile ecology of the dune,” Li says, explaining the process. The structure relies on the sand to help regulate its temperature throughout the year alongside a ground-source heat system. Because the museum is lit naturally by skylights, visitors’ experiences of the artwork will vary with the seasons and time of day.

“Going to a museum in China often feels like going to a shopping centre,” says Mr. Li—an experience of rushed consumerism, typically featured large crowds and smartphone selfies（自拍）. By contrast, the Dune's galleries reminds us of the caves in which the most primitive human art was first painted，rather than a hurried urban fly-by.

“Nature is not just for looking. It should not be used in architectural projects as merely a decoration, or a skin job. Our work was not just to design a physical structure, but to maintain a balance between nature and humanity.” says Mr. Li.

9 . With roaring ships, hammering oil drill, industrial fishing and coastal construction, humans have strongly influenced the underwater soundscape (声音景观) over the past couple of hundred years — in some cases posting a threat to whales, dolphins and other ocean creatures. Until recently, underwater sound pollution had not attracted the same attention. Now, a new paper published in the journal Science lays out the impacts, demonstrating that noise pollution can be just as harmful to the ocean environment as other kinds of pollution.

Even the cracking of glaciers and any drop of rain falling on the water’s surface can be heard deep under the sea. Sea life uses sound to study their habitat, and to keep in communication with each other. They also use sound by listening to know something about their environment.

“It’s a long-lasting problem that certainly weakens the animals all the way from individuals to populations,” says lead author Carlos M. Duarte, distinguished professor at Saudi Arabia’s King Abdullah University of Science and Technology (KAUST), “We are hoping that this report will not only reveal elements of how humans impact the ocean through sound pollution, but that it will also bring the topic to the attention of policymakers who will be able to act based upon the very real solutions.”

Marine (海洋) ecologist Kirsten Thompson of the United Kingdom’s University of Exeter, who was not involved in the study, said the report could not have come at a better time. “It summarizes the fact that we are in this new phase of human-caused noise in our oceans that is having a dramatic impact on different species.” What matters most, she notes, is the fact that the paper “doesn’t just point at the problem, it shows how to solve it.”

Unlike plastic pollution or fertilizer runoff, noise pollution will not take years to fix. The moment we switch our noise off the impact disappears, Duarte says, pointing to marine life surveys conducted around April 5, 2020. Having the world use more renewable energy would lessen the need to drill for oil and gas. The international team of researchers also called for a global regulatory framework for measuring and managing ocean noise.

10 . After many months stuck at home, we’re all dreaming of travelling somewhere exciting and stretching our legs. These are four amazing destinations for hiking.

For this one, come early and on a weekday. Devil’s Lake is one of the most popular state park, which requires a high climb but rewards hikers with its incredible views. In winter, get ready to hit the ski trails(路径), walk out on frozen lake and enjoy the quiet that winter offers. In warm months, be sure to get to the lake too. You can look for reflections of light on water and golden sunsets, and rent ferryboats from either shore.

This spot is about taking moments for silence and slowing down. Lots of people come here to escape crowds. You will firstly be attracted by its accessible nature. You might catch a sight of a big white goose, a wild duck, a black cuckoo, or hundreds of other birds that call this spot home.

Blue Mound State Park, which sits 1716 meters above sea level, is the highest point in the area. It’s enough to mean over 20miles of off-road single track and hiking trails. This trip gives you the opportunity to take in the incredible sight of Baraboo and experience the best of ancient mountain culture.

The University of Wisconsin-Madison Arboretum is officially a national historic landmark — and that should tell you a lot. Wild plants are actually full of color and life, Exploring its 17-plus miles of trails takes you through nearly all of Wisconsin’s native ecosystems, like savannas, woodlands, and wetlands.