Yellowstone National Park, established by the U.S. congress as a national park on March 1, 1872, is located primarily in the of Wyoming it also extends into Montana and Idaho . it is wn for its wildlife and geothermal features especially Old Faithful Geiser , one of the most popular features in the park. It has many types of ecosystems , but the subalpine forest is dominant.
The region was bypassed during the Lewis and Clark Expedition in the early 1800s. Aside from visits by mountain men during the early to mid-1800s, organized exploration did not begin until the late 1860s. The U.S. army was commissioned to oversee the park just after its establishment. In 1917, administration of the park was transferred to the National Park Service , which had been created the previous year. Hundreds of structures have been built and are protected for their architectural and historical significance, and researchers have examined more than 1,000 archaeological sites.
Yellowstone National Park spans an area of 3,468 square miles (8,983 km²), comprising lakes, canyons, rivers and mountain ranges . Yellowstone Lake is one of the largest high-altitude lakes in North America and is centered over the Yellowstone Caldera , the largest supervolcano on the continent. The caldera is considered an active volcano; it has erupted with tremendous force several times in the last two million years. Half of the world's geothermal features are in Yellowstone, fueled by this ongoing volcanism. Lava flows and rocks from volcanic eruptions cover most of the land area of Yellowstone. The park is the centerpiece of the Greater Yellowstone Ecosystem the largest remaining, nearly-intact ecosystem in the Earth's northern temperate zone
Hundreds of species of mammals, birds, fish and reptiles have been documented, including several that are either endangered or threatened . The vast forests and grasslands also include unique species of plants. Grizzlies wolves , and free-ranging herds of bison and elk live in the park.. Yellowstone has numerous recreational opportunities, including hiking, boating , fishing and sightseeing. Paved roads provide close access to the major geothermal areas as well as some of the lakes and waterfalls.
Frebruary test :
- Listening exercises and script, audio 1 and audio 2.
- Reading exercise.
As there was time left we started the comparative and superlative adjectives. St.B.p. 44,45 with a reading "Are we living faster?".
Homework: Grammar, unit 86 (adjectives), 87 (adverbs, sections a,b)
On Thursday 18th we´ll have a speaking exam.
-Listening exercises , ,audio 1, audio 2.
Homework: Grammar, unit 17 (have ,have got), workbook p. 36,37,38,39. Reading, St.B.p. 58,59.