学进去

Heading back to college this January? One of your biggest expenses is likely to be textbooks. A report shows that college students spend about $1200 on textbooks on average. 1．

Turn to online resources.

Buying books online is not a new idea. Today, there are tons of websites where you can find your books. 2． They allow you to compare the cost from several different sites by a price comparison tool.

3．

One reason textbooks are so expensive is that they’re constantly “updated”, even when the update involves only very small edits. For classes with course content that’s stable (稳定的) from year to year, just reach out to your professor to ask whether the latest edition is necessary.

Save with used books.

4． You can get a used book in good condition for up to 60% off. Just remember, you have to be okay with some broken and folded pages.

Buy e-books whenever you can.

E-books are a great choice. Not only do they cost less than the printed ones, they’re also more convenient. Depending on the e-reader you use, you can highlight certain passages and search the text for keywords. You can also take screenshots of graphs. 5．

There’s a lot to see in Badlands National Park (BADL). Castle Trail: A Badlands National Park Favorite We’re kicking things off with the longest trail in the park-and it is an excellent one. This 5-mile journey takes you through the backcountry of Badlands, with the main destination being the incredible Castle Rock formation. Along the way, you’ll hike through grassland. And as always in the Badlands, watch out for snakes.

See Bison in Sage Creek Wilderness Area

Are you as crazy about wildlife? Sage Creek is for you. Located in Wall, SD, this is one of the largest areas of preserved mixed-grass prairie(草原) left in the United States. And it’s one of the best places for North American bison. But remember to always stay in your vehicle, and never get out to approach a bison. This is not only illegal, but can cost you your life.

Ascend the Amazing Saddle Pass Trail

Saddle Pass is a short trail, but one you won’t want to miss. One of the most photographed spots in Badlands National Park is also one of the coolest climbing experiences, hands down. Here, you’ll climb up the Badlands Wall itself into a view of the White River Valley. The trail gets its name from the shape of the prairie you’ll travel.

Badlands National Park’s Top Hike: Notch Trail

As the most popular hike in the Badlands, Notch Trail features a fantastic ladder climb and absolutely breath-taking views. This trail is worth the difficulty, but it is not recommended for anyone with a fear of heights, and can be dangerous during or after heavy rains. The most Badlands injuries take place here, so be sure to practice safely.

Grand Canyon National Park

Located in northern Arizona, the park covers 277 miles of the Colorado River and nearby uplands. One of the most awesome examples of erosion (侵蚀)   in the world, Grand Canyon is unmatched in the incomparable view it offers to visitors.

The Village and Desert View on the South Rim are open all year and park entrances remain open24 hours a day. North Rim facilities open mid-May and close mid-October. Park entrances remain open 24 hours a day during this time. Hours for visitor centers and businesses vary throughout the year.

The park produces a Pocket Map with a North Rim and South Rim edition that contains a map and information about services, facilities, and park ranger programs. It is available in French, German, Italian, Spanish, and Chinese. A hiking brochure is available for those planning to hike one of the park’s main trails down into Grand Canyon. Obtain publications at entrance stations, visitor centers, or atgo.nps.gov/136oil.

The terrain (地形) is rugged with narrow, rocky trails and steep cliffs. Visitors using wheelchairs or having visual disabilities may need assistance. For more information about accessibility in Grand Canyon National Park, see go.nps.gov/1rtxl2.

Admission to the park us $35 per private vehicle; $30 per motorcycle; and $20 per person entering the park through Grand Canyon Railway, park shuttle bus, walking, or riding a bicycle. The pass can be used for seven days and includes both rims. Pay fees at park entrance stations or at some businesses outside the park. Every year the National Park Service offers entrance fee free days. For complete fee information, please visitgo.nps.gov/y5uu6f.

Grand Canyon National Park involves sustainability in all aspects of its operations. Use your refillable water bottle to fill up on free Grand Canyon spring water at visitor centers and grocery stores. Recycling containers are conveniently located and as common as trash bins. Discover what else you can do to protect the environment while traveling here and beyond. at go.mos.gov/lb2rzt.